unit Childwin; // ------------------------------------- // MDI-Child-Window // ------------------------------------- interface uses Synchronization, Contnrs, Windows, Classes, Graphics, Forms, Controls, StdCtrls, ExtCtrls, ComCtrls, ImgList, SysUtils, Dialogs, Menus, SynEdit, SynMemo, SynEditHighlighter, SynHighlighterSQL, SynEditSearch, SynEditTypes, Clipbrd, Buttons, CheckLst, ToolWin, Db, helpers, ZDataset, ZAbstractRODataset, ZConnection, ZSqlMonitor, ZDbcLogging, SynCompletionProposal, HeidiComp, SynEditMiscClasses, MysqlQuery, MysqlQueryThread, queryprogress, communication, MysqlConn, Tabs, VirtualTrees, createdatabase, tbl_properties, createtable, SynRegExpr, EditVar, PngSpeedButton, WideStrings, WideStrUtils, SynUnicode; type TOrderCol = class(TObject) ColumnName: String; SortDirection: Byte; end; TOrderColArray = Array of TOrderCol; type TMDIChild = class(TForm) panelTop: TPanel; DBtree: TVirtualStringTree; Splitter1: TSplitter; PageControlMain: TPageControl; tabData: TTabSheet; tabDatabase: TTabSheet; splitterTopBottom: TSplitter; tabQuery: TTabSheet; popupTreeView: TPopupMenu; menuRefreshDBTree: TMenuItem; tabTable: TTabSheet; popupDbGrid: TPopupMenu; menuproperties: TMenuItem; menudroptable: TMenuItem; menuemptytable: TMenuItem; tabHost: TTabSheet; PageControlHost: TPageControl; tabVariables: TTabSheet; tabProcessList: TTabSheet; ListVariables: TVirtualStringTree; ListProcesses: TVirtualStringTree; popupHost: TPopupMenu; Kill1: TMenuItem; NewDatabase1: TMenuItem; ListTables: TVirtualStringTree; Refresh1: TMenuItem; pnlDataTop: TPanel; menurefresh: TMenuItem; N2: TMenuItem; pnlQueryMemo: TPanel; SynSQLSyn1: TSynSQLSyn; SynMemoQuery: TSynMemo; spltQuery: TSplitter; menucreatetable: TMenuItem; OpenDialog1: TOpenDialog; TimerHostUptime: TTimer; popupTableGrid: TPopupMenu; Refresh2: TMenuItem; DropField1: TMenuItem; N3: TMenuItem; N5: TMenuItem; PopupmenuDropDatabase: TMenuItem; popupDataGrid: TPopupMenu; Refresh3: TMenuItem; MenuAddField: TMenuItem; MenuEditField: TMenuItem; popupResultGrid: TPopupMenu; Copyrecords1: TMenuItem; CopyasCSVData1: TMenuItem; N9: TMenuItem; LabelResultinfo: TLabel; menuAlterTable: TMenuItem; N10: TMenuItem; MenuRenameTable: TMenuItem; TimerConnected: TTimer; N12: TMenuItem; popupSqlLog: TPopupMenu; Clear2: TMenuItem; Copy1: TMenuItem; N13: TMenuItem; EditQuery1: TMenuItem; Markall3: TMenuItem; N15: TMenuItem; menuMaintenance: TMenuItem; TimerConnectErrorCloseWindow: TTimer; PopupMenuDropTable: TMenuItem; N17: TMenuItem; ListColumns: TVirtualStringTree; CopycontentsasHTML1: TMenuItem; CopycontentsasHTML2: TMenuItem; Copy3: TMenuItem; Paste2: TMenuItem; N4: TMenuItem; DataGrid: TVirtualStringTree; QueryGrid: TVirtualStringTree; Copytableas1: TMenuItem; Delete1: TMenuItem; N6: TMenuItem; QF1: TMenuItem; QF2: TMenuItem; QuickFilter1: TMenuItem; QF3: TMenuItem; QF4: TMenuItem; N7: TMenuItem; DropFilter1: TMenuItem; PrintList2: TMenuItem; PrintList3: TMenuItem; PrintList4: TMenuItem; N1: TMenuItem; MenuCopyTable: TMenuItem; SynMemoFilter: TSynMemo; N18: TMenuItem; selectall1: TMenuItem; MenuAutoupdate: TMenuItem; TimerHost: TTimer; Set1: TMenuItem; EnableAutoRefresh: TMenuItem; DisableAutoRefresh: TMenuItem; Saveastextfile1: TMenuItem; QF7: TMenuItem; QF5: TMenuItem; QF6: TMenuItem; QF8: TMenuItem; QF10: TMenuItem; QF11: TMenuItem; QF9: TMenuItem; QF12: TMenuItem; CopyasXMLdata1: TMenuItem; CopyasXMLdata2: TMenuItem; Exportdata1: TMenuItem; Exportdata2: TMenuItem; SaveDialogExportData: TExportSaveDialog; N11: TMenuItem; ProgressBarQuery: TProgressBar; Copy4: TMenuItem; N14: TMenuItem; DataInsertDateTime: TMenuItem; DataTimestamp: TMenuItem; DataDateTime: TMenuItem; DataTime: TMenuItem; DataDate: TMenuItem; DataYear: TMenuItem; ViewasHTML1: TMenuItem; HTMLview1: TMenuItem; InsertfilesintoBLOBfields1: TMenuItem; InsertfilesintoBLOBfields2: TMenuItem; InsertfilesintoBLOBfields3: TMenuItem; N19: TMenuItem; setNULL1: TMenuItem; ZSQLMonitor1: TZSQLMonitor; Exporttables1: TMenuItem; Exporttables2: TMenuItem; popupDbGridHeader: TPopupMenu; SynCompletionProposal1: TSynCompletionProposal; OpenDialogSQLFile: TOpenDialog; SaveDialogSQLFile: TSaveDialog; SynEditSearch1: TSynEditSearch; N16: TMenuItem; ManageIndexes1: TMenuItem; tabCommandStats: TTabSheet; ListCommandStats: TVirtualStringTree; QF13: TMenuItem; QF14: TMenuItem; QF15: TMenuItem; QF16: TMenuItem; QF17: TMenuItem; N21: TMenuItem; pnlQueryHelpers: TPanel; tabsetQueryHelpers: TTabSet; lboxQueryHelpers: TListBox; popupQuery: TPopupMenu; MenuRun: TMenuItem; MenuRunSelection: TMenuItem; MenuRunLine: TMenuItem; MenuItem1: TMenuItem; menucopy: TMenuItem; menupaste: TMenuItem; menuload: TMenuItem; menusave: TMenuItem; menuclear: TMenuItem; MenuFind: TMenuItem; MenuReplace: TMenuItem; MenuItem2: TMenuItem; lblDataTop: TLabel; spltQueryHelpers: TSplitter; menuRenameColumn: TMenuItem; N22: TMenuItem; N23: TMenuItem; menuSaveSelectionToFile: TMenuItem; menuSaveAsSnippet: TMenuItem; menuSaveSelectionAsSnippet: TMenuItem; popupQueryHelpers: TPopupMenu; menuDeleteSnippet: TMenuItem; menuHelp: TMenuItem; menuLoadSnippet: TMenuItem; menuInsertSnippetAtCursor: TMenuItem; menuExplore: TMenuItem; PopupMenuCreateTable: TMenuItem; menuSQLhelp: TMenuItem; N24: TMenuItem; menuSQLhelpData: TMenuItem; menuAlterdatabase: TMenuItem; menuTreeAlterTable: TMenuItem; menuLogToFile: TMenuItem; menuOpenLogFolder: TMenuItem; tabStatus: TTabSheet; ListStatus: TVirtualStringTree; Splitter3: TSplitter; pnlProcessViewBox: TPanel; pnlProcessView: TPanel; SynMemoProcessView: TSynMemo; pnlFilterVariables: TPanel; lblFilterVariables: TLabel; editFilterVariables: TEdit; pnlFilterStatus: TPanel; lblFilterStatus: TLabel; editFilterStatus: TEdit; pnlFilterProcesses: TPanel; lblFilterProcesses: TLabel; editFilterProcesses: TEdit; menuEditVariable: TMenuItem; actView1: TMenuItem; Createview1: TMenuItem; menuTreeCreateView: TMenuItem; menuTreeEditView: TMenuItem; menuTreeExpandAll: TMenuItem; menuTreeCollapseAll: TMenuItem; tlbDataButtons: TToolBar; tbtnDataSorting: TToolButton; tbtnDataColumns: TToolButton; tbtnDataFilter: TToolButton; pnlFilter: TPanel; btnFilterApply: TButton; lblTableFilter: TLabel; editFilterSearch: TEdit; btnFilterClear: TButton; popupFilter: TPopupMenu; menuFilterCopy: TMenuItem; menuFilterPaste: TMenuItem; N8: TMenuItem; menuFilterApply: TMenuItem; menuFilterClear: TMenuItem; N20: TMenuItem; SynMemoSQLLog: TSynMemo; Insert1: TMenuItem; Cancelediting1: TMenuItem; procedure menuRenameColumnClick(Sender: TObject); procedure ListColumnsNewText(Sender: TBaseVirtualTree; Node: PVirtualNode; Column: TColumnIndex; NewText: WideString); procedure popupQueryPopup(Sender: TObject); procedure lboxQueryHelpersClick(Sender: TObject); procedure lboxQueryHelpersDblClick(Sender: TObject); procedure tabsetQueryHelpersChange(Sender: TObject; NewTab: Integer; var AllowChange: Boolean); procedure btnDataClick(Sender: TObject); procedure ListTablesChange(Sender: TBaseVirtualTree; Node: PVirtualNode); procedure ListColumnsChange(Sender: TBaseVirtualTree; Node: PVirtualNode); procedure controlsKeyUp(Sender: TObject; var Key: Word; Shift: TShiftState); procedure SynCompletionProposal1AfterCodeCompletion(Sender: TObject; const Value: WideString; Shift: TShiftState; Index: Integer; EndToken: WideChar); procedure SynCompletionProposal1CodeCompletion(Sender: TObject; var Value: WideString; Shift: TShiftState; Index: Integer; EndToken: WideChar); procedure SynCompletionProposal1Execute(Kind: SynCompletionType; Sender: TObject; var CurrentInput: WideString; var x, y: Integer; var CanExecute: Boolean); procedure PerformConnect; procedure FormClose(Sender: TObject; var Action: TCloseAction); procedure pcChange(Sender: TObject); procedure ValidateControls(FrmIsFocussed: Boolean = true); procedure ValidateQueryControls(FrmIsFocussed: Boolean = true); function FieldContent(ds: TDataSet; ColName: String): String; procedure LoadDatabaseProperties(db: string); procedure ShowHost; procedure ShowDatabase(db: String); procedure ShowDBProperties(db: String); procedure ShowTable(table: String; tab: TTabSheet = nil); procedure ShowTableProperties(table: string); procedure ShowTableData(table: string); procedure viewdata(Sender: TObject); procedure RefreshFieldListClick(Sender: TObject); procedure MenuRefreshClick(Sender: TObject); procedure LogSQL(msg: WideString = ''; comment: Boolean = true ); procedure ShowVariablesAndProcesses(Sender: TObject); procedure KillProcess(Sender: TObject); procedure PageControlHostChange(Sender: TObject); procedure ExecSQLClick(Sender: TObject; Selection: Boolean = false; CurrentLine: Boolean=false); procedure SynMemoQueryStatusChange(Sender: TObject; Changes: TSynStatusChanges); procedure TimerHostUptimeTimer(Sender: TObject); procedure FormActivate(Sender: TObject); procedure FormShow(Sender: TObject); procedure ListTablesNewText(Sender: TBaseVirtualTree; Node: PVirtualNode; Column: TColumnIndex; NewText: WideString); procedure MenuRenameTableClick(Sender: TObject); procedure TimerConnectedTimer(Sender: TObject); procedure Clear2Click(Sender: TObject); procedure EditQuery1Click(Sender: TObject); procedure Markall3Click(Sender: TObject); procedure ReadWindowOptions; procedure ListTablesDblClick(Sender: TObject); procedure TimerConnectErrorCloseWindowTimer(Sender: TObject); procedure QuickFilterClick(Sender: TObject); function GetFilter: WideString; procedure SaveFilter(Clause: WideString = ''); procedure DropFilter1Click(Sender: TObject); procedure selectall1Click(Sender: TObject); procedure popupResultGridPopup(Sender: TObject); procedure Autoupdate1Click(Sender: TObject); procedure EnableAutoRefreshClick(Sender: TObject); procedure ShowProcessList(sender: TObject); procedure DisableAutoRefreshClick(Sender: TObject); procedure SynMemoQueryDragOver(Sender, Source: TObject; X, Y: Integer; State: TDragState; var Accept: Boolean); procedure SynMemoQueryDragDrop(Sender, Source: TObject; X, Y: Integer); procedure SynMemoQueryDropFiles(Sender: TObject; X, Y: Integer; AFiles: TWideStrings); procedure popupHostPopup(Sender: TObject); procedure Saveastextfile1Click(Sender: TObject); procedure popupTreeViewPopup(Sender: TObject); procedure SaveDialogExportDataTypeChange(Sender: TObject); procedure popupDataGridPopup(Sender: TObject); procedure InsertDate(Sender: TObject); procedure setNULL1Click(Sender: TObject); function GetNamedVar( SQLQuery: WideString; x: String; HandleErrors: Boolean = false; DisplayErrors: Boolean = false ) : String; function GetVar( SQLQuery: WideString; x: Integer = 0; HandleErrors: Boolean = false; DisplayErrors: Boolean = false ) : String; function GetResults( SQLQuery: WideString; HandleErrors: Boolean = false; DisplayErrors: Boolean = false; ForceDialog: Boolean = false): TDataSet; function GetCol( SQLQuery: WideString; x: Integer = 0; HandleErrors: Boolean = false; DisplayErrors: Boolean = false ) : TStringList; procedure ZSQLMonitor1LogTrace(Sender: TObject; Event: TZLoggingEvent); procedure MenuTablelistColumnsClick(Sender: TObject); function mask(str: WideString) : WideString; procedure CheckConnection(); procedure QueryLoad( filename: String; ReplaceContent: Boolean = true ); procedure ExecuteNonQuery(SQLQuery: String); function ExecuteQuery(query: String): TDataSet; function CreateOrGetRemoteQueryTab(sender: THandle): THandle; procedure DataGridChange(Sender: TBaseVirtualTree; Node: PVirtualNode); procedure DataGridCreateEditor(Sender: TBaseVirtualTree; Node: PVirtualNode; Column: TColumnIndex; out EditLink: IVTEditLink); procedure DataGridEditCancelled(Sender: TBaseVirtualTree; Column: TColumnIndex); procedure DataGridEdited(Sender: TBaseVirtualTree; Node: PVirtualNode; Column: TColumnIndex); procedure DataGridEditing(Sender: TBaseVirtualTree; Node: PVirtualNode; Column: TColumnIndex; var Allowed: Boolean); procedure DataGridFocusChanging(Sender: TBaseVirtualTree; OldNode, NewNode: PVirtualNode; OldColumn, NewColumn: TColumnIndex; var Allowed: Boolean); procedure GridGetText(Sender: TBaseVirtualTree; Node: PVirtualNode; Column: TColumnIndex; TextType: TVSTTextType; var CellText: WideString); procedure DataGridHeaderClick(Sender: TVTHeader; Column: TColumnIndex; Button: TMouseButton; Shift: TShiftState; X, Y: Integer); procedure GridKeyDown(Sender: TObject; var Key: Word; Shift: TShiftState); procedure DataGridNewText(Sender: TBaseVirtualTree; Node: PVirtualNode; Column: TColumnIndex; NewText: WideString); procedure GridPaintText(Sender: TBaseVirtualTree; const TargetCanvas: TCanvas; Node: PVirtualNode; Column: TColumnIndex; TextType: TVSTTextType); procedure menuDeleteSnippetClick(Sender: TObject); procedure GetCalculatedLimit(Table: String; out Limit, AllRows: Int64); procedure menuExploreClick(Sender: TObject); procedure menuInsertSnippetAtCursorClick(Sender: TObject); procedure menuLoadSnippetClick(Sender: TObject); procedure RunAsyncPost(ds: TDeferDataSet); procedure vstGetNodeDataSize(Sender: TBaseVirtualTree; var NodeDataSize: Integer); procedure vstInitNode(Sender: TBaseVirtualTree; ParentNode, Node: PVirtualNode; var InitialStates: TVirtualNodeInitStates); procedure vstFreeNode(Sender: TBaseVirtualTree; Node: PVirtualNode); procedure vstGetText(Sender: TBaseVirtualTree; Node: PVirtualNode; Column: TColumnIndex; TextType: TVSTTextType; var CellText: WideString); procedure vstGetImageIndex(Sender: TBaseVirtualTree; Node: PVirtualNode; Kind: TVTImageKind; Column: TColumnIndex; var Ghosted: Boolean; var ImageIndex: Integer); procedure vstHeaderClick(Sender: TVTHeader; Column: TColumnIndex; Button: TMouseButton; Shift: TShiftState; X, Y: Integer); procedure vstCompareNodes(Sender: TBaseVirtualTree; Node1, Node2: PVirtualNode; Column: TColumnIndex; var Result: Integer); procedure vstBeforePaint(Sender: TBaseVirtualTree; TargetCanvas: TCanvas); procedure vstHeaderDraggedOut(Sender: TVTHeader; Column: TColumnIndex; DropPosition: TPoint); procedure DBtreeChange(Sender: TBaseVirtualTree; Node: PVirtualNode); procedure DBtreeDblClick(Sender: TObject); procedure DBtreeGetImageIndex(Sender: TBaseVirtualTree; Node: PVirtualNode; Kind: TVTImageKind; Column: TColumnIndex; var Ghosted: Boolean; var ImageIndex: Integer); procedure DBtreeGetNodeDataSize(Sender: TBaseVirtualTree; var NodeDataSize: Integer); procedure DBtreeGetText(Sender: TBaseVirtualTree; Node: PVirtualNode; Column: TColumnIndex; TextType: TVSTTextType; var CellText: WideString); procedure DBtreeInitChildren(Sender: TBaseVirtualTree; Node: PVirtualNode; var ChildCount: Cardinal); procedure DBtreeInitNode(Sender: TBaseVirtualTree; ParentNode, Node: PVirtualNode; var InitialStates: TVirtualNodeInitStates); procedure DBtreePaintText(Sender: TBaseVirtualTree; const TargetCanvas: TCanvas; Node: PVirtualNode; Column: TColumnIndex; TextType: TVSTTextType); procedure editFilterSearchChange(Sender: TObject); procedure editFilterSearchEnter(Sender: TObject); procedure editFilterSearchExit(Sender: TObject); procedure menuLogToFileClick(Sender: TObject); procedure menuOpenLogFolderClick(Sender: TObject); procedure vstGetHint(Sender: TBaseVirtualTree; Node: PVirtualNode; Column: TColumnIndex; var LineBreakStyle: TVTTooltipLineBreakStyle; var HintText: WideString); procedure ProcessSqlLog; procedure ListCommandStatsBeforeCellPaint(Sender: TBaseVirtualTree; TargetCanvas: TCanvas; Node: PVirtualNode; Column: TColumnIndex; CellRect: TRect); procedure ListProcessesChange(Sender: TBaseVirtualTree; Node: PVirtualNode); procedure editFilterVTChange(Sender: TObject); procedure ListColumnsDblClick(Sender: TObject); procedure ListVariablesDblClick(Sender: TObject); procedure menuEditVariableClick(Sender: TObject); procedure menuRefreshDBTreeClick(Sender: TObject); procedure menuTreeCollapseAllClick(Sender: TObject); procedure menuTreeExpandAllClick(Sender: TObject); procedure SynMemoFilterChange(Sender: TObject); procedure tabsetQueryHelpersGetImageIndex(Sender: TObject; TabIndex: Integer; var ImageIndex: Integer); private uptime : Integer; time_connected : Cardinal; viewingdata : Boolean; FMysqlConn : TMysqlConn; FConn : TOpenConnProf; QueryRunningInterlock : Integer; lastUsedDB : String; UserQueryFired : Boolean; UserQueryFiring : Boolean; CachedTableLists : TStringList; QueryHelpersSelectedItems : Array[0..3] of Array of Integer; EditVariableForm : TfrmEditVariable; FileNameSessionLog : String; FileHandleSessionLog : Textfile; SqlMessages : TWideStringList; SqlMessagesLock : TRtlCriticalSection; dsShowEngines, dsHaveEngines : TDataSet; FilterPanelManuallyOpened : Boolean; winName : String; FSelectedTableColumns, FSelectedTableKeys : TDataset; function GetQueryRunning: Boolean; procedure SetQueryRunning(running: Boolean); function GetActiveGrid: TVirtualStringTree; procedure WaitForQueryCompletion(WaitForm: TfrmQueryProgress; query: TMySqlQuery; ForceDialog: Boolean); function RunThreadedQuery(AQuery: WideString; ForceDialog: Boolean): TMysqlQuery; procedure DisplayRowCountStats(ds: TDataSet); procedure insertFunction(Sender: TObject); function GetActiveDatabase: string; function GetSelectedTable: string; procedure SetSelectedDatabase(db: string); procedure SetSelectedTable(table: string); procedure SaveListSetup( List: TVirtualStringTree ); procedure RestoreListSetup( List: TVirtualStringTree ); procedure SetVisibleListColumns( List: TVirtualStringTree; Columns: TStringList ); function GetTableSize(ds: TDataSet): Int64; procedure ToggleFilterPanel(ForceVisible: Boolean = False); public DatabasesWanted, Databases : TStringList; TemporaryDatabase : String; dataselected : Boolean; editing : Boolean; mysql_version : Integer; SessionName : String; VTRowDataListVariables, VTRowDataListStatus, VTRowDataListProcesses, VTRowDataListCommandStats, VTRowDataListTables, VTRowDataListColumns : TVTreeDataArray; FProgressForm : TFrmQueryProgress; // Variables set by preferences dialog prefRememberFilters, prefConvertHTMLEntities : Boolean; prefLogsqlnum, prefLogSqlWidth, prefDefaultColWidth, prefLoadSize : Integer; prefCSVSeparator, prefCSVEncloser, prefCSVTerminator : String[10]; prefLogToFile, prefPreferShowTables : Boolean; CreateDatabaseForm : TCreateDatabaseForm; CreateTableForm : TCreateTableForm; TablePropertiesForm : Ttbl_properties_form; FDataGridResult, FQueryGridResult : TGridResult; procedure Init(AConn : POpenConnProf; AMysqlConn : TMysqlConn); //procedure HandleQueryNotification(ASender : TMysqlQuery; AEvent : Integer); function GetVisualDataset: TGridResult; function ExecUpdateQuery(sql: WideString; HandleErrors: Boolean = false; DisplayErrors: Boolean = false): Int64; function ExecSelectQuery(sql: WideString; HandleErrors: Boolean = false; DisplayErrors: Boolean = false; ForceDialog: Boolean = false): TDataSet; procedure ExecUseQuery(db: WideString; HandleErrors: Boolean = false; DisplayErrors: Boolean = false); property FQueryRunning: Boolean read GetQueryRunning write SetQueryRunning; property ActiveGrid: TVirtualStringTree read GetActiveGrid; property MysqlConn : TMysqlConn read FMysqlConn; property Conn : TOpenConnProf read FConn; property ActiveDatabase : string read GetActiveDatabase write SetSelectedDatabase; property SelectedTable : string read GetSelectedTable write SetSelectedTable; function FetchActiveDbTableList: TDataSet; function RefreshActiveDbTableList: TDataSet; function FetchDbTableList(db: string): TDataSet; function RefreshDbTableList(db: string): TDataSet; function DbTableListCached(db: String): Boolean; procedure ClearAllTableLists; procedure EnsureDatabase; procedure TestVTreeDataArray( P: PVTreeDataArray ); function GetVTreeDataArray( VT: TBaseVirtualTree ): PVTreeDataArray; procedure ActivateFileLogging; procedure DeactivateFileLogging; procedure TrimSQLLog; function HandleOrderColumns( AddOrderCol: TOrderCol = nil ): TOrderColArray; function ComposeOrderClause( Cols: TOrderColArray ): String; procedure TableEnginesCombo(var Combobox: TCombobox); function GetNodeType(Node: PVirtualNode): Byte; function GetSelectedNodeType: Byte; procedure RefreshTree(DoResetTableCache: Boolean; SelectDatabase: String = ''); procedure RefreshTreeDB(db: String); function FindDBNode(db: String): PVirtualNode; function GridPostUpdate(Sender: TBaseVirtualTree): Boolean; function GridPostInsert(Sender: TBaseVirtualTree): Boolean; function GridPostDelete(Sender: TBaseVirtualTree): Boolean; function DataGridPostUpdateOrInsert(Node: PVirtualNode): Boolean; procedure GridFinalizeEditing(Sender: TBaseVirtualTree); function GetWhereClause(Row: TGridRow; Columns: TGridColumns; KeyList: TDataSet): WideString; function GetKeyColumns(KeyList: TDataset): WideStrings.TWideStringlist; function CheckUniqueKeyClause: Boolean; procedure DataGridInsertRow; procedure DataGridCancelEdit(Sender: TObject); end; type // Represents errors already "handled" (shown to user), // which can thus safely be ignored. THandledSQLError = class(Exception) end; // ----------------------------------------------------------------------------- implementation uses Main, fieldeditor, copytable, sqlhelp, printlist, column_selection, data_sorting, runsqlfile, mysql_structures, Registry, memoeditor; type PMethod = ^TMethod; {$I const.inc} {$R *.DFM} function TMDIChild.CreateOrGetRemoteQueryTab(sender: THandle): THandle; begin // Should create a tab for commands from another window, // or return a handle to an existing tab if one already exists for that window. // // TODO: Implement this when multiple tabs are implemented. // Return a tab's handle instead of the childwin's handle. result := Self.Handle; end; procedure TMDIChild.PerformConnect; var v : String[50]; v1, v2, v3 : String; rx : TRegExpr; begin try time_connected := 0; TimerConnected.Enabled := true; LogSQL( 'Connection established with host "' + FMysqlConn.Connection.hostname + '" on port ' + IntToStr(FMysqlConn.Connection.Port) ); LogSQL( 'Connection-ID: ' + IntToStr( MySQLConn.Connection.GetThreadId ) ); // Detect server version // Be careful with version suffixes, for example: '4.0.31-20070605_Debian-5-log' v := GetVar( 'SELECT VERSION()' ); rx := TRegExpr.Create; rx.ModifierG := True; rx.Expression := '^(\d+)\.(\d+)\.(\d+)'; if rx.Exec(v) then begin v1 := rx.Match[1]; v2 := rx.Match[2]; v3 := rx.Match[3]; end; rx.Free; mysql_version := MakeInt(v1) *10000 + MakeInt(v2) *100 + MakeInt(v3); tabHost.Caption := 'Host: '+MySQLConn.Connection.HostName; Mainform.showstatus('MySQL '+v1+'.'+v2+'.'+v3, 2); // On Re-Connection, try to restore lost properties if FMysqlConn.Connection.Database <> '' then ExecUseQuery( FMysqlConn.Connection.Database ); except on E: Exception do begin LogSQL( E.Message, true ); Screen.Cursor := crDefault; MessageDlg( E.Message, mtError, [mbOK], 0 ); raise; end; end; end; function TMDIChild.GetQueryRunning: Boolean; begin Result := ( QueryRunningInterlock = 1 ); end; procedure TMDIChild.SetQueryRunning(running: Boolean); var newValue : Integer; oldValue : Integer; begin if ( running ) then begin newValue := 1; end else begin newValue := 0; end; oldValue := InterlockedExchange( QueryRunningInterlock, newValue ); if ( newValue = oldValue ) then begin case ( newValue ) of 1 : begin raise Exception.Create( 'Error: Default connection is ' + 'already executing a query.' ); end; 0 : begin raise Exception.Create( 'Internal badness: Double reset of running ' + 'flag.' ); end; end; end; end; procedure TMDIChild.Init(AConn : POpenConnProf; AMysqlConn : TMysqlConn); var AutoReconnect : Boolean; i, j : Integer; miGroup, miFilterGroup, miFunction, miFilterFunction : TMenuItem; functioncats : TStringList; reg : TRegistry; begin QueryRunningInterlock := 0; UserQueryFired := False; UserQueryFiring := False; TemporaryDatabase := ''; CachedTableLists := TStringList.Create; InitializeCriticalSection(SqlMessagesLock); EnterCriticalSection(SqlMessagesLock); SqlMessages := TWideStringList.Create; LeaveCriticalSection(SqlMessagesLock); FConn := AConn^; FMysqlConn := AMysqlConn; // we're now responsible to free it FConn.MysqlConn := FMysqlConn.Connection; // use this connection (instead of zConn) // Initialization: establish connection and read some vars from registry MainForm.Showstatus( 'Creating window...' ); // Temporarily disable AutoReconnect in Registry // in case of unexpected application-termination AutoReconnect := Mainform.GetRegValue(REGNAME_AUTORECONNECT, DEFAULT_AUTORECONNECT); if AutoReconnect then begin reg := TRegistry.Create(); reg.OpenKey( REGPATH, true ); reg.WriteBool( REGNAME_AUTORECONNECT, False ); reg.CloseKey; FreeAndNil(reg); end; ReadWindowOptions(); MainForm.Showstatus( 'Connecting to ' + FConn.MysqlParams.Host + '...' ); try PerformConnect(); except TimerConnectErrorCloseWindow.Enabled := true; Exit; end; SessionName := FMysqlConn.SessionName; DatabasesWanted := explode( ';', FConn.DatabaseList ); if ( FConn.DatabaseListSort ) then begin DatabasesWanted.Sort(); end; // Fill variables-list, processlist and DB-tree ShowVariablesAndProcesses( Self ); // Invoke population of database tree. It's important to do this here after // having filled DatabasesWanted, not at design time. DBtree.RootNodeCount := 1; // Re-enable AutoReconnect in Registry! if AutoReconnect then begin reg := TRegistry.Create; reg.OpenKey( REGPATH, true ); reg.WriteBool( REGNAME_AUTORECONNECT, true ); reg.CloseKey; FreeAndNil(reg); end; // Define window properties SetWindowConnected( true ); i := SetWindowName( SessionName ); winName := SessionName; if ( i <> 0 ) then begin winName := winName + Format( ' (%d)', [i] ); end; Application.Title := winName + ' - ' + APPNAME; Caption := winName; // Reselect last used database if MainForm.GetRegValue( REGNAME_RESTORELASTUSEDDB, DEFAULT_RESTORELASTUSEDDB ) and ( lastUsedDB <> '' ) then begin try ActiveDatabase := lastUsedDB; except // Suppress exception message when db was dropped externally or // the session was just opened with "OnlyDBs" in place and the // last db is not contained in this list. end; end else // By default, select the host node DBtree.Selected[DBtree.GetFirst] := true; // read function-list into menu functioncats := GetFunctionCategories; for i:=0 to functioncats.Count-1 do begin // Create a menu item which gets subitems later miGroup := TMenuItem.Create(popupQuery); miGroup.Caption := functioncats[i]; popupQuery.Items.add(miGroup); miFilterGroup := TMenuItem.Create(popupFilter); miFilterGroup.Caption := miGroup.Caption; popupFilter.Items.add(miFilterGroup); for j:=0 to Length(MySqlFunctions)-1 do begin if MySqlFunctions[j].Category <> functioncats[i] then continue; miFunction := TMenuItem.Create(popupQuery); miFunction.Caption := MySqlFunctions[j].Name; miFunction.ImageIndex := 13; // Prevent generating a hotkey miFunction.Caption := StringReplace(miFunction.Caption, '&', '&&', [rfReplaceAll]); // Prevent generating a seperator line if miFunction.Caption = '-' then miFunction.Caption := '&-'; miFunction.Hint := MySqlFunctions[j].Name + MySqlFunctions[j].Declaration; // Take care of needed server version if MySqlFunctions[j].Version <= mysql_version then begin if MySqlFunctions[j].Description <> '' then miFunction.Hint := miFunction.Hint + ' - ' + Copy(MySqlFunctions[j].Description, 0, 200 ); miFunction.Tag := j; // Place menuitem on menu miFunction.OnClick := insertFunction; end else begin miFunction.Hint := miFunction.Hint + ' - ('+STR_NOTSUPPORTED+', needs >= '+ConvertServerVersion(MySqlFunctions[j].Version)+')'; miFunction.Enabled := False; end; // Prevent generating a seperator for ShortHint and LongHint miFunction.Hint := StringReplace( miFunction.Hint, '|', '¦', [rfReplaceAll] ); miGroup.Add(miFunction); // Create a copy of the menuitem for popupFilter miFilterFunction := TMenuItem.Create(popupFilter); miFilterFunction.Caption := miFunction.Caption; miFilterFunction.Hint := miFunction.Hint; miFilterFunction.ImageIndex := miFunction.ImageIndex; miFilterFunction.Tag := miFunction.Tag; miFilterFunction.OnClick := miFunction.OnClick; miFilterFunction.Enabled := miFunction.Enabled; miFilterGroup.Add(miFilterFunction); end; end; end; procedure TMDIChild.ReadWindowOptions; var ws : String; i : Integer; menuitem : Tmenuitem; fontname, datafontname : String; fontsize, datafontsize : Integer; begin ws := Mainform.GetRegValue(REGNAME_CHILDWINSTATE, 'Normal'); if ws = 'Normal' then begin WindowState := wsNormal; Left := Mainform.GetRegValue(REGNAME_CHILDWINLEFT, Left); Top := Mainform.GetRegValue(REGNAME_CHILDWINTOP, Top); Width := Mainform.GetRegValue(REGNAME_CHILDWINWIDTH, Width ); Height := Mainform.GetRegValue(REGNAME_CHILDWINHEIGHT, Height ); end else if ws = 'Minimized' then WindowState := wsMinimized else if ( ws = 'Maximized' ) then WindowState := wsMaximized; // Other values: pnlQueryMemo.Height := Mainform.GetRegValue(REGNAME_QUERYMEMOHEIGHT, pnlQueryMemo.Height); pnlQueryHelpers.Width := Mainform.GetRegValue(REGNAME_QUERYHELPERSWIDTH, pnlQueryHelpers.Width); DBtree.Width := Mainform.GetRegValue(REGNAME_DBTREEWIDTH, DBtree.Width); SynMemoSQLLog.Height := Mainform.GetRegValue(REGNAME_SQLOUTHEIGHT, SynMemoSQLLog.Height); prefDefaultColWidth := Mainform.GetRegValue(REGNAME_DEFAULTCOLWIDTH, DEFAULT_DEFAULTCOLWIDTH); // Fix registry entry from older versions which can have 0 here which makes no sense // since the autosetting was removed if prefDefaultColWidth <= 0 then prefDefaultColWidth := DEFAULT_DEFAULTCOLWIDTH; prefLogsqlnum := Mainform.GetRegValue(REGNAME_LOGSQLNUM, DEFAULT_LOGSQLNUM); prefLogSqlWidth := Mainform.GetRegValue(REGNAME_LOGSQLWIDTH, DEFAULT_LOGSQLWIDTH); prefConvertHTMLEntities := Mainform.GetRegValue(REGNAME_CONVERTHTMLENTITIES, DEFAULT_CONVERTHTMLENTITIES); prefCSVSeparator := Mainform.GetRegValue(REGNAME_CSV_SEPARATOR, DEFAULT_CSV_SEPARATOR); prefCSVEncloser := Mainform.GetRegValue(REGNAME_CSV_ENCLOSER, DEFAULT_CSV_ENCLOSER); prefCSVTerminator := Mainform.GetRegValue(REGNAME_CSV_TERMINATOR, DEFAULT_CSV_TERMINATOR); prefRememberFilters := Mainform.GetRegValue(REGNAME_REMEMBERFILTERS, DEFAULT_REMEMBERFILTERS); prefPreferShowTables := Mainform.GetRegValue(REGNAME_PREFER_SHOWTABLES, DEFAULT_PREFER_SHOWTABLES); prefLoadSize := Mainform.GetRegValue(REGNAME_LOADSIZE, DEFAULT_LOADSIZE); // SQL-Font: fontname := Mainform.GetRegValue(REGNAME_FONTNAME, DEFAULT_FONTNAME); fontsize := Mainform.GetRegValue(REGNAME_FONTSIZE, DEFAULT_FONTSIZE); SynMemoQuery.Font.Name := fontname; SynMemoQuery.Font.Size := fontsize; SynMemoFilter.Font.Name := fontname; SynMemoFilter.Font.Size := fontsize; SynMemoSQLLog.Font.Name := fontname; SynMemoSQLLog.Font.Size := fontsize; SynMemoProcessView.Font.Name := fontname; SynMemoProcessView.Font.Size := fontsize; // Data-Font: datafontname := Mainform.GetRegValue(REGNAME_DATAFONTNAME, DEFAULT_DATAFONTNAME); datafontsize := Mainform.GetRegValue(REGNAME_DATAFONTSIZE, DEFAULT_DATAFONTSIZE); DataGrid.Font.Name := datafontname; QueryGrid.Font.Name := datafontname; DataGrid.Font.Size := datafontsize; QueryGrid.Font.Size := datafontsize; // Color coding: SynSQLSyn1.KeyAttri.Foreground := StringToColor(Mainform.GetRegValue(REGNAME_SQLCOLKEYATTRI, ColorToString(DEFAULT_SQLCOLKEYATTRI))); SynSQLSyn1.FunctionAttri.Foreground := StringToColor(Mainform.GetRegValue(REGNAME_SQLCOLFUNCTIONATTRI, ColorToString(DEFAULT_SQLCOLFUNCTIONATTRI))); SynSQLSyn1.DataTypeAttri.Foreground := StringToColor(Mainform.GetRegValue(REGNAME_SQLCOLDATATYPEATTRI, ColorToString(DEFAULT_SQLCOLDATATYPEATTRI))); SynSQLSyn1.NumberAttri.Foreground := StringToColor(Mainform.GetRegValue(REGNAME_SQLCOLNUMBERATTRI, ColorToString(DEFAULT_SQLCOLNUMBERATTRI))); SynSQLSyn1.StringAttri.Foreground := StringToColor(Mainform.GetRegValue(REGNAME_SQLCOLSTRINGATTRI, ColorToString(DEFAULT_SQLCOLSTRINGATTRI))); SynSQLSyn1.CommentAttri.Foreground := StringToColor(Mainform.GetRegValue(REGNAME_SQLCOLCOMMENTATTRI, ColorToString(DEFAULT_SQLCOLCOMMENTATTRI))); SynSQLSyn1.TablenameAttri.Foreground := StringToColor(Mainform.GetRegValue(REGNAME_SQLCOLTABLENAMEATTRI, ColorToString(DEFAULT_SQLCOLTABLENAMEATTRI))); SynMemoQuery.ActiveLineColor := StringToColor(Mainform.GetRegValue(REGNAME_SQLCOLACTIVELINE, ColorToString(DEFAULT_SQLCOLACTIVELINE))); // Restore width of columns of all VirtualTrees RestoreListSetup(ListVariables); RestoreListSetup(ListStatus); RestoreListSetup(ListProcesses); RestoreListSetup(ListCommandStats); RestoreListSetup(ListTables); RestoreListSetup(ListColumns); // Activate logging if Mainform.GetRegValue(REGNAME_LOGTOFILE, DEFAULT_LOGTOFILE) then ActivateFileLogging; // Set last used database, select it later in Init lastUsedDB := Mainform.GetRegValue(REGNAME_LASTUSEDDB, '', FConn.Description); // Generate menuitems for popupDbGridHeader (column selection for ListTables) popupDBGridHeader.Items.Clear; for i:=0 to ListTables.Header.Columns.Count-1 do begin menuitem := TMenuItem.Create( popupDBGridHeader ); menuitem.Caption := ListTables.Header.Columns[i].Text; menuitem.OnClick := MenuTablelistColumnsClick; // Disable hiding first column menuitem.Enabled := i>0; menuitem.Checked := coVisible in ListTables.Header.Columns[i].Options; popupDbGridHeader.Items.Add( menuitem ); end; end; procedure TMDIChild.FormClose(Sender: TObject; var Action: TCloseAction); var ws : String; reg : TRegistry; begin SetWindowConnected( false ); SetWindowName( main.discname ); Application.Title := APPNAME; SetLength(FDataGridResult.Rows, 0); SetLength(FQueryGridResult.Rows, 0); // Closing connection FMysqlConn.Disconnect; FreeAndNil(FMysqlConn); EnterCriticalSection(SqlMessagesLock); FreeAndNil(SqlMessages); LeaveCriticalSection(SqlMessagesLock); // Saving some vars into registry case WindowState of wsNormal : ws := 'Normal'; wsMinimized : ws := 'Minimized'; wsMaximized : ws := 'Maximized'; end; reg := TRegistry.Create(); if reg.OpenKey( REGPATH, true ) then begin // Window state and position reg.WriteString( REGNAME_CHILDWINSTATE, ws ); reg.WriteInteger( REGNAME_CHILDWINLEFT, Left ); reg.WriteInteger( REGNAME_CHILDWINTOP, Top ); reg.WriteInteger( REGNAME_CHILDWINWIDTH, Width ); reg.WriteInteger( REGNAME_CHILDWINHEIGHT, Height ); reg.WriteInteger( REGNAME_QUERYMEMOHEIGHT, pnlQueryMemo.Height ); reg.WriteInteger( REGNAME_QUERYHELPERSWIDTH, pnlQueryHelpers.Width ); reg.WriteInteger( REGNAME_DBTREEWIDTH, DBtree.width ); reg.WriteInteger( REGNAME_SQLOUTHEIGHT, SynMemoSQLLog.Height ); // Save width of probably resized columns of all VirtualTrees SaveListSetup(ListVariables); SaveListSetup(ListStatus); SaveListSetup(ListProcesses); SaveListSetup(ListCommandStats); SaveListSetup(ListTables); SaveListSetup(ListColumns); // Open server-specific registry-folder. // relative from already opened folder! reg.OpenKey( REGKEY_SESSIONS + FConn.Description, true ); reg.WriteString( REGNAME_LASTUSEDDB, ActiveDatabase ); end; FreeAndNil(reg); // Clear database and table lists DBtree.Clear; ClearAllTableLists; FreeAndNil(DatabasesWanted); FreeAndNil(Databases); FreeAndNil(CachedTableLists); ValidateControls(False); Action := caFree; SetWindowConnected( false ); SetWindowName( main.discname ); Application.Title := APPNAME; if prefLogToFile then DeactivateFileLogging; end; {** Add a SQL-command or comment to SynMemoSQLLog } procedure TMDIChild.LogSQL(msg: WideString = ''; comment: Boolean = true); var snip : boolean; begin // Shorten very long messages snip := (prefLogSqlWidth > 0) and (Length(msg) > prefLogSqlWidth); if snip then begin msg := Copy( msg, 0, prefLogSqlWidth ) + '/* large SQL query, snipped at ' + FormatNumber( prefLogSqlWidth ) + ' characters */'; end; msg := WideStringReplace( msg, #9, ' ', [rfReplaceAll] ); msg := WideStringReplace( msg, #10, ' ', [rfReplaceAll] ); msg := WideStringReplace( msg, #13, ' ', [rfReplaceAll] ); msg := WideStringReplace( msg, ' ', ' ', [rfReplaceAll] ); if ( comment ) then begin msg := '/* ' + msg + ' */'; end; EnterCriticalSection(SqlMessagesLock); try SqlMessages.Add(msg); finally LeaveCriticalSection(SqlMessagesLock); end; PostMessage(MainForm.Handle, WM_PROCESSLOG, 0, 0); end; procedure TMDIChild.ProcessSqlLog; var msg: WideString; begin EnterCriticalSection(SqlMessagesLock); try if SqlMessages = nil then Exit; if SqlMessages.Count < 1 then Exit; msg := SqlMessages[0]; SqlMessages.Delete(0); finally LeaveCriticalSection(SqlMessagesLock); end; SynMemoSQLLog.Lines.Add( msg ); TrimSQLLog; // Scroll to last line and repaint SynMemoSQLLog.GotoLineAndCenter( SynMemoSQLLog.Lines.Count ); SynMemoSQLLog.Repaint; // Log to file? if prefLogToFile then try WriteLn( FileHandleSessionLog, Format('[%s] %s', [DateTimeToStr(Now), msg]) ); except DeactivateFileLogging; MessageDlg('Error writing to session log file:'+CRLF+FileNameSessionLog+CRLF+CRLF+'Logging is disabled now.', mtError, [mbOK], 0); end; end; {** Delete first line(s) in SQL log and adjust LineNumberStart in gutter Called by LogSQL and preferences dialog } procedure TMDIChild.TrimSQLLog; var i : Integer; begin i := 0; while SynMemoSQLLog.Lines.Count > prefLogsqlnum do begin SynMemoSQLLog.Lines.Delete(0); inc(i); end; // Increase first displayed number in gutter so it doesn't lie about the log entries if i > 0 then SynMemoSQLLog.Gutter.LineNumberStart := SynMemoSQLLog.Gutter.LineNumberStart + i; end; procedure TMDIChild.ShowHost; begin if (not DBTree.Dragging) and ( (PageControlMain.ActivePage = tabDatabase) or (PageControlMain.ActivePage = tabTable) or (PageControlMain.ActivePage = tabData) ) then PageControlMain.ActivePage := tabHost; tabDatabase.TabVisible := false; tabTable.TabVisible := false; tabData.TabVisible := false; Caption := winName; pcChange( Self ); end; procedure TMDIChild.ShowDatabase(db: String); begin if (not DBtree.Dragging) and ( (PageControlMain.ActivePage = tabHost) or (PageControlMain.ActivePage = tabTable) or (PageControlMain.ActivePage = tabData) ) then PageControlMain.ActivePage := tabDatabase; tabDatabase.TabVisible := true; tabTable.TabVisible := false; tabData.TabVisible := false; Caption := winName + ' - /' + db; ShowDBProperties( db ); end; {*** Do the default action (show table properties or table data) for a table. } procedure TMDIChild.ShowTable(table: String; tab: TTabSheet = nil); begin if tab = nil then tab := tabTable; // Alternative default: tabData if tab = tabTable then ShowTableProperties( table ); if tab = tabData then ShowTableData( table ); Caption := winName + ' - /' + ActiveDatabase + '/' + SelectedTable; end; procedure TMDIChild.viewdata(Sender: TObject); var sorting : String; i, j : Integer; OrderColumns : TOrderColArray; reg_value : String; select_base : String; limit, allrows : Int64; sl_query : TWideStringList; DisplayedColumnsList, HiddenKeyCols, KeyCols : WideStrings.TWideStringList; Filter, ColName : WideString; col : TVirtualTreeColumn; rx : TRegExpr; ds : TDataSet; begin Screen.Cursor := crHourglass; // Post pending UPDATE if dataselected and Mainform.actDataPost.Enabled then Mainform.actDataPostExecute(Sender); viewingdata := true; sl_query := TWideStringList.Create(); try // Limit the number of rows automatically if first time this table is shown // and the user did not explicitely set the limits and pressed OK in mainform if (Sender <> Mainform.ButtonOK) and (not dataselected) then begin // limit number of rows fetched if more than ~ 5 MB of data GetCalculatedLimit( SelectedTable, limit, allrows ); // adjust limit in GUI: // Uncheck checkbox if calculated limit is larger than wanted rowcount if (limit <= 0) and (AllRows > MakeInt(mainform.EditLimitEnd.Text)) then mainform.CheckBoxLimit.Checked := false; if limit > 0 then begin mainform.CheckBoxLimit.Checked := true; mainform.EditLimitEnd.Text := IntToStr(limit); end; mainform.Repaint; end; // Read cached ORDER-clause and set Grid.Sortcolumns sorting := ''; OrderColumns := HandleOrderColumns; if Length(OrderColumns) > 0 then begin sorting := 'ORDER BY ' + ComposeOrderClause(OrderColumns); // Signal for the user that we applied an ORDER-clause tbtnDataSorting.ImageIndex := 108; end else tbtnDataSorting.ImageIndex := 107; if (SelectedTable <> '') and (ActiveDatabase <> '') then begin // Ensure and are visible tabTable.TabVisible := true; tabData.TabVisible := true; // Switch to PageControlMain.ActivePage := tabData; // Read columns to display from registry reg_value := Mainform.GetRegValue(REGNAME_DISPLAYEDCOLUMNS + '_' + ActiveDatabase + '.' + SelectedTable, '', SessionName); DisplayedColumnsList := WideStrings.TWideStringlist.Create; DisplayedColumnsList.Delimiter := '`'; DisplayedColumnsList.DelimitedText := reg_value; HiddenKeyCols := WideStrings.TWideStringlist.Create; // Prepare SELECT statement select_base := 'SELECT '; // Try to calc the rowcount regardless of a given LIMIT // Only needed if the user specified a WHERE-clause Filter := GetFilter; if (mysql_version >= 40000) and (Filter <> '') then select_base := select_base + ' SQL_CALC_FOUND_ROWS'; // Selected columns if DisplayedColumnsList.Count = 0 then begin select_base := select_base + ' *'; tbtnDataColumns.ImageIndex := 107; end else begin // Ensure key columns are included to enable editing KeyCols := GetKeyColumns(FSelectedTableKeys); for i := 0 to KeyCols.Count - 1 do if DisplayedColumnsList.IndexOf(KeyCols[i]) = -1 then begin DisplayedColumnsList.Add(KeyCols[i]); HiddenKeyCols.Add(KeyCols[i]); end; for i := 0 to DisplayedColumnsList.Count - 1 do begin select_base := select_base + ' ' + mask(DisplayedColumnsList[i]) + ','; end; // Cut last comma select_base := copy( select_base, 1, Length(select_base)-1 ); // Signal for the user that we now hide some columns tbtnDataColumns.ImageIndex := 108; end; select_base := select_base + ' FROM ' + mask( SelectedTable ); sl_query.Add( select_base ); // Apply custom WHERE filter if Filter <> '' then sl_query.Add('WHERE ' + Filter); // Apply custom ORDER BY if detected in registry if sorting <> '' then sl_query.Add( sorting ); // Apply LIMIT if mainform.CheckBoxLimit.Checked then sl_query.Add('LIMIT ' + mainform.EditLimitStart.Text + ', ' + mainform.EditLimitEnd.Text ); try SynMemoFilter.Color := clWindow; MainForm.ShowStatus('Freeing data...'); DataGrid.BeginUpdate; DataGrid.Header.Columns.BeginUpdate; DataGrid.RootNodeCount := 0; DataGrid.Header.Options := DataGrid.Header.Options + [hoVisible]; DataGrid.Header.Columns.Clear; SetLength(FDataGridResult.Columns, 0); SetLength(FDataGridResult.Rows, 0); // start query (with wait dialog) MainForm.ShowStatus('Retrieving data...'); ds := GetResults(sl_query.Text, false); MainForm.ShowStatus('Filling grid with record-data...'); SetLength(FDataGridResult.Columns, ds.FieldCount); for i:=0 to ds.FieldCount-1 do begin ColName := ds.Fields[i].FieldName; FDataGridResult.Columns[i].Name := ColName; col := DataGrid.Header.Columns.Add; col.Text := ColName; if HiddenKeyCols.IndexOf(ColName) > -1 then col.Options := col.Options - [coVisible]; col.Width := prefDefaultColWidth; // Sorting color and title image for j:=0 to Length(OrderColumns)-1 do begin if OrderColumns[j].ColumnName = ds.Fields[i].FieldName then begin case OrderColumns[j].SortDirection of ORDER_ASC: begin col.Color := COLOR_SORTCOLUMN_ASC; col.ImageIndex := 109; end; ORDER_DESC: begin col.Color := COLOR_SORTCOLUMN_DESC; col.ImageIndex := 110; end; end; end; end; // Right alignment for numeric columns FSelectedTableColumns.First; while not FSelectedTableColumns.Eof do begin if FSelectedTableColumns.FieldByName('Field').AsWideString = ColName then begin rx := TRegExpr.Create; rx.Expression := '^(tiny|small|medium|big)?int\b'; if rx.Exec(FSelectedTableColumns.FieldByName('Type').AsWideString) then begin col.Alignment := taRightJustify; FDataGridResult.Columns[i].IsInt := True; end; rx.Expression := '^(float|double|decimal)\b'; if rx.Exec(FSelectedTableColumns.FieldByName('Type').AsWideString) then begin col.Alignment := taRightJustify; FDataGridResult.Columns[i].IsFloat := True; end; rx.Expression := '^(date|datetime|time(stamp)?)\b'; if rx.Exec(FSelectedTableColumns.FieldByName('Type').AsWideString) then FDataGridResult.Columns[i].IsDate := True; rx.Expression := '^((tiny|medium|long)?text|varchar)\b'; if rx.Exec(FSelectedTableColumns.FieldByName('Type').AsWideString) then FDataGridResult.Columns[i].IsText := True; rx.Expression := '^((tiny|medium|long)?blob|(var)?binary)\b'; if rx.Exec(FSelectedTableColumns.FieldByName('Type').AsWideString) then FDataGridResult.Columns[i].IsBlob := True; end; FSelectedTableColumns.Next; end; FSelectedTableKeys.First; for j := 0 to FSelectedTableKeys.RecordCount - 1 do begin if (FSelectedTableKeys.FieldByName('Key_name').AsString = 'PRIMARY') and (FSelectedTableKeys.FieldByName('Column_name').AsWideString = ColName) then begin FDataGridResult.Columns[i].IsPK := True; break; end; FSelectedTableKeys.Next; end; end; SetLength(FDataGridResult.Rows, ds.RecordCount); ds.First; for i:=0 to ds.RecordCount-1 do begin SetLength(FDataGridResult.Rows[i].Cells, ds.FieldCount); for j:=0 to ds.FieldCount-1 do begin FDataGridResult.Rows[i].Cells[j].Text := ds.Fields[j].AsWideString; FDataGridResult.Rows[i].Cells[j].IsNull := ds.Fields[j].IsNull; end; ds.Next; end; DataGrid.RootNodeCount := Length(FDataGridResult.Rows); DisplayRowCountStats(ds); dataselected := true; except on E:Exception do begin // Most likely we have a wrong filter-clause when this happens // Put the user with his nose onto the wrong filter // either specified by user or // created by HeidiSQL by using the search box ToggleFilterPanel(True); SynMemoFilter.Color := $008080FF; // light pink DataGrid.Header.Options := DataGrid.Header.Options - [hoVisible]; MessageDlg( E.Message, mtError, [mbOK], 0 ); end; end; MainForm.ShowStatus( STATUS_MSG_READY ); pcChange(self); end; finally DataGrid.Header.Columns.EndUpdate; DataGrid.EndUpdate; FreeAndNil(sl_query); FreeAndNil(ds); viewingdata := false; Screen.Cursor := crDefault; end; end; {*** Calculate + display total rowcount and found rows matching to filter in data-tab } procedure TMDIChild.DisplayRowCountStats(ds: TDataSet); var rows_matching : Int64; // rows matching to where-filter rows_total : Int64; // total rowcount filter : WideString; begin lblDataTop.Caption := ActiveDatabase + '.' + SelectedTable + ': '; if GetSelectedNodeType = NODETYPE_TABLE then begin // Get rowcount from table rows_total := StrToInt64( GetVar( 'SELECT COUNT(*) FROM ' + mask( SelectedTable ), 0 ) ); lblDataTop.Caption := lblDataTop.Caption + FormatNumber( rows_total ) + ' rows total'; end else begin // Don't fetch rowcount from views to fix bug #1844952 rows_total := -1; lblDataTop.Caption := lblDataTop.Caption + ' [View]'; end; {*** @note: FOUND_ROWS() gives us a correct number, but this number belongs in most cases to a different query than the previous SELECT, because Zeos does some automagically SHOW TABLES LIKE '' and SHOW COLUMNS LIKE '%' between the above SELECT and a following "SELECT FOUND_ROWS()". This problem has been introduced with the fix of a faulty caching-mechanism in Zeos (rev 312). and those queries seem to reset the FOUND_ROWS() since MySQL 5.0 The workaround is to store FOUND_ROWS() immediately after query-execution in a variable, which we are selecting here. @see TZMySQLResultSet:Create @see TZMySQLResultSet:Open } Filter := GetFilter; if Filter <> '' then begin if mysql_version >= 40000 then rows_matching := StrToInt64Def(GetVar('SELECT @found_rows'), 0) else rows_matching := ds.RecordCount; end else rows_matching := rows_total; if( rows_matching <> rows_total ) and (Filter <> '') then lblDataTop.Caption := lblDataTop.Caption + ', ' + FormatNumber(rows_matching) + ' matching to filter'; if ( rows_matching = rows_total ) and (Filter <> '') then lblDataTop.Caption := lblDataTop.Caption + ', filter matches all rows'; if ( mainform.CheckBoxLimit.Checked ) and ( rows_matching > StrToIntDef( mainform.EditLimitEnd.Text, 0 ) ) then lblDataTop.Caption := lblDataTop.Caption + ', limited to ' + FormatNumber( ds.RecordCount ); end; procedure TMDIChild.WaitForQueryCompletion(WaitForm: TfrmQueryProgress; query: TMySqlQuery; ForceDialog: Boolean); var signal: Cardinal; begin debug( 'Waiting for query to complete.' ); if ForceDialog then begin debug( 'Showing progress form.' ); WaitForm.ShowModal(); end else begin signal := WaitForSingleObject(query.EventHandle, 300); if signal = 0 then debug( 'Query completed within 300msec.' ) else begin debug( '300msec passed, showing progress form.' ); WaitForm.ShowModal(); end; end; CloseHandle(query.EventHandle); debug( 'Query complete.' ); end; {*** Occurs when active tab has changed. } procedure TMDIChild.pcChange(Sender: TObject); begin if (PageControlMain.ActivePage = tabData) and (not dataselected) then viewdata(Sender); // Move focus to relevant controls in order for them to receive keyboard events. // Do this only if the user clicked the new tab. Not on automatic tab changes. if Sender = PageControlMain then begin if PageControlMain.ActivePage = tabDatabase then ListTables.SetFocus; if PageControlMain.ActivePage = tabTable then ListColumns.SetFocus; if PageControlMain.ActivePage = tabData then DataGrid.SetFocus; if PageControlMain.ActivePage = tabQuery then SynMemoQuery.SetFocus; end; // Ensure controls are in a valid state ValidateControls; // Show processlist if it's visible now but empty yet if PageControlMain.ActivePage = tabHost then begin if ListProcesses.RootNodeCount = 0 then ShowProcessList( self ); end; end; {*** Ensures that we're connected to the currently selected database. } procedure TMDIChild.EnsureDatabase; var db: String; begin // Some functions temporarily switch away from the database selected by the user, handle that. if TemporaryDatabase <> '' then db := TemporaryDatabase else db := ActiveDatabase; // Blank = database undefined if db = '' then Exit; if (FMysqlConn.Connection.Database <> db) or (UserQueryFired and not UserQueryFiring) then begin ExecUseQuery(db, false, false); UserQueryFired := false; FMysqlConn.Connection.Database := db; end; end; {*** Look for list of tables for current database in cache. Retrieve from server if necessary. @return TDataSet The cached list of tables for the active database. } function TMDIChild.FetchActiveDbTableList: TDataSet; begin Result := FetchDbTableList(ActiveDatabase); end; function TMDIChild.FetchDbTableList(db: string): TDataSet; var ds: TDataSet; OldCursor: TCursor; begin if not DbTableListCached(db) then begin // Not in cache, load table list. OldCursor := Screen.Cursor; Screen.Cursor := crHourGlass; MainForm.ShowStatus('Fetching tables from "' + db + '" ...'); try if (mysql_version >= 32300) and (not prefPreferShowTables) then begin ds := GetResults('SHOW TABLE STATUS FROM ' + mask(db), false, false); end else begin // contains table names, nothing else. ds := GetResults('SHOW /*!50002 FULL */ TABLES FROM ' + mask(db), false, false); // could clean up data (rename first column to 'Name') and // and add row counters to data set as a new field by using // SELECT COUNT(*), but that would potentially be rather slow. end; CachedTableLists.AddObject(db, ds); finally MainForm.ShowStatus(STATUS_MSG_READY); Screen.Cursor := OldCursor; end; end; Result := TDataSet(CachedTableLists.Objects[CachedTableLists.IndexOf(db)]); Result.First; end; {*** Nukes cached table list for active database, then refreshes it. @return TDataSet The newly cached list of tables for the active database. } function TMDIChild.RefreshActiveDbTableList: TDataSet; begin Result := RefreshDbTableList(ActiveDatabase); end; function TMDIChild.RefreshDbTableList(db: string): TDataSet; var idx: Integer; o: TObject; begin idx := CachedTableLists.IndexOf(db); if idx > -1 then begin o := CachedTableLists.Objects[idx]; FreeAndNil(o); CachedTableLists.Delete(idx); end; Result := FetchDbTableList(db); end; {*** Nukes the table list cache. } procedure TMDIChild.ClearAllTableLists; var idx: Integer; ds: TDataSet; begin for idx := 0 to CachedTableLists.Count - 1 do begin ds := TDataSet(CachedTableLists.Objects[idx]); ds.Close; FreeAndNil(ds); end; CachedTableLists.Clear; end; // Fetch content from a row cell, avoiding NULLs to cause AVs function TMDIChild.FieldContent(ds: TDataSet; ColName: String): String; begin Result := ''; if (ds.FindField(colName) <> nil) and (not ds.FindField(ColName).IsNull) then Result := ds.FieldByName(ColName).AsString; end; procedure TMDIChild.LoadDatabaseProperties(db: string); var i : Integer; bytes : Int64; ds : TDataSet; ListCaptions, SelectedCaptions: TStringList; begin // DB-Properties Screen.Cursor := crHourGlass; // Remember selected nodes SelectedCaptions := GetVTCaptions(ListTables, True); try ds := FetchDbTableList(db); MainForm.ShowStatus( 'Displaying tables from "' + db + '" ...' ); ListTables.BeginUpdate; ListTables.Clear; SetLength(VTRowDataListTables, ds.RecordCount); for i := 1 to ds.RecordCount do begin listcaptions := TStringList.Create; // Table ListCaptions.Add( ds.Fields[0].AsString ); // Treat tables slightly different than views case GetDBObjectType( ds.Fields) of NODETYPE_TABLE, NODETYPE_CRASHED_TABLE: // A normal table begin if GetDBObjectType(ds.Fields) = NODETYPE_CRASHED_TABLE then begin VTRowDataListTables[i-1].ImageIndex := ICONINDEX_CRASHED_TABLE; VTRowDataListTables[i-1].NodeType := NODETYPE_CRASHED_TABLE; end else begin VTRowDataListTables[i-1].ImageIndex := ICONINDEX_TABLE; VTRowDataListTables[i-1].NodeType := NODETYPE_TABLE; end; // Rows if ds.FindField('Rows') <> nil then ListCaptions.Add( FormatNumber( FieldContent(ds, 'Rows') ) ) else ListCaptions.Add(''); // Size: Data_length + Index_length bytes := GetTableSize(ds); if bytes >= 0 then ListCaptions.Add(FormatByteNumber(bytes)) else ListCaptions.Add(''); // Created: ListCaptions.Add( FieldContent(ds, 'Create_time') ); // Updated: ListCaptions.Add( FieldContent(ds, 'Update_time') ); // Engine if ds.FindField('Type') <> nil then ListCaptions.Add( FieldContent(ds, 'Type') ) else ListCaptions.Add( FieldContent(ds, 'Engine') ); // Comment ListCaptions.Add( FieldContent(ds, 'Comment') ); // Version ListCaptions.Add( FieldContent(ds, 'Version') ); // Row format ListCaptions.Add( FieldContent(ds, 'Row_format') ); // Avg row length if (FieldContent(ds, 'Avg_row_length') <> '') then ListCaptions.Add( FormatByteNumber(FieldContent(ds, 'Avg_row_length')) ) else ListCaptions.Add(''); // Max data length if (FieldContent(ds, 'Max_data_length') <> '') then ListCaptions.Add( FormatByteNumber(FieldContent(ds, 'Max_data_length')) ) else ListCaptions.Add(''); // Index length if (FieldContent(ds, 'Index_length') <> '') then ListCaptions.Add( FormatByteNumber(FieldContent(ds, 'Index_length')) ) else ListCaptions.Add(''); // Data free if (FieldContent(ds, 'Data_free') <> '') then ListCaptions.Add( FormatByteNumber(FieldContent(ds, 'Data_free')) ) else ListCaptions.Add(''); // Auto increment if (FieldContent(ds, 'Auto_increment') <> '') then ListCaptions.Add( FormatNumber(FieldContent(ds, 'Auto_increment')) ) else ListCaptions.Add(''); // Check time ListCaptions.Add( FieldContent(ds, 'Check_time') ); // Collation ListCaptions.Add( FieldContent(ds, 'Collation') ); // Checksum ListCaptions.Add( FieldContent(ds, 'Checksum') ); // Create_options ListCaptions.Add( FieldContent(ds, 'Create_options') ); // Object type ListCaptions.Add('Base table'); end; NODETYPE_VIEW: begin // View VTRowDataListTables[i-1].ImageIndex := ICONINDEX_VIEW; VTRowDataListTables[i-1].NodeType := NODETYPE_VIEW; // Rows ListCaptions.Add(''); // Size ListCaptions.Add(''); // Created: ListCaptions.Add(''); // Updated: ListCaptions.Add(''); // Engine ListCaptions.Add(''); // Comment ListCaptions.Add(FieldContent(ds, 'Comment')); // Version ListCaptions.Add(''); // Row_format ListCaptions.Add(''); // Avg_row_length ListCaptions.Add(''); // Max_data_length ListCaptions.Add(''); // Index_length ListCaptions.Add(''); // Data_free ListCaptions.Add(''); // Auto_increment ListCaptions.Add(''); // Check_time ListCaptions.Add(''); // Collation ListCaptions.Add(''); // Checksum ListCaptions.Add(''); // Create_options ListCaptions.Add(''); // Object Type ListCaptions.Add('View'); end; end; VTRowDataListTables[i-1].Captions := ListCaptions; ds.Next; end; finally ListTables.RootNodeCount := Length(VTRowDataListTables); ListTables.EndUpdate; SetVTSelection(ListTables, SelectedCaptions); Mainform.showstatus(db + ': ' + IntToStr(ListTables.RootNodeCount) +' table(s)', 0); tabDatabase.Caption := sstr('Database: ' + db, 30); MainForm.ShowStatus(STATUS_MSG_READY); Screen.Cursor := crDefault; // Ensure tree db node displays its chidren initialized DBtree.ReinitChildren(FindDBNode(db), False); end; end; { Show tables and their properties on the tabsheet "Database" } procedure TMDIChild.ShowDBProperties(db: string); begin Screen.Cursor := crHourglass; pcChange( Self ); MainForm.ShowStatus( STATUS_MSG_READY ); Screen.Cursor := crDefault; end; { Show columns of selected table, indicate indexed columns by certain icons } procedure TMDIChild.RefreshFieldListClick(Sender: TObject); begin ShowTableProperties(SelectedTable); end; procedure TMDIChild.ShowTableProperties(table: string); var i,j : Integer; isFulltext : Boolean; dummy: Boolean; hasCommentColumn: Boolean; SelectedCaptions: TStringList; begin // Table-Properties dataselected := false; Screen.Cursor := crHourGlass; if (not DBtree.Dragging) and ( (PageControlMain.ActivePage = tabHost) or (PageControlMain.ActivePage = tabDatabase) ) then PageControlMain.ActivePage := tabTable; tabDatabase.TabVisible := true; tabTable.TabVisible := true; tabData.TabVisible := true; tabTable.Caption := sstr('Table: ' + table, 30); MainForm.ShowStatus( 'Reading table properties...' ); // Remember selected nodes SelectedCaptions := GetVTCaptions(ListColumns, True); ListColumns.BeginUpdate; ListColumns.Clear; Try FSelectedTableColumns := GetResults( 'SHOW /*!32332 FULL */ COLUMNS FROM ' + mask(table), false ); // Hide column "Comment" on old servers. hasCommentColumn := FSelectedTableColumns.FindField('Comment') <> nil; if not hasCommentColumn then ListColumns.Header.Columns[5].Options := ListColumns.Header.Columns[5].Options - [coVisible]; SetLength(VTRowDataListColumns, FSelectedTableColumns.RecordCount); for i:=1 to FSelectedTableColumns.RecordCount do begin VTRowDataListColumns[i-1].ImageIndex := ICONINDEX_FIELD; VTRowDataListColumns[i-1].Captions := TStringList.Create; VTRowDataListColumns[i-1].Captions.Add( FSelectedTableColumns.FieldByName('Field').AsString ); VTRowDataListColumns[i-1].Captions.Add( FSelectedTableColumns.FieldByName('Type').AsString ); if lowercase( FSelectedTableColumns.FieldByName('Null').AsString ) = 'yes' then VTRowDataListColumns[i-1].Captions.Add('Yes') else VTRowDataListColumns[i-1].Captions.Add('No'); if FSelectedTableColumns.FieldByName('Default').IsNull then // In MySQL, it is not possible to use fx NOW() as a column default. // Also, if default is NULL, then the actual default is either NULL // or nothing at all. Looking at another column, "Null", can help // determine which one it really is, as can a SHOW CREATE TABLE. // According with the above, it is not possible in MySQL to create // a column which may be NULL but which has no default value. if LowerCase(FSelectedTableColumns.FieldByName('Null').AsString) = 'yes' then VTRowDataListColumns[i-1].Captions.Add('NULL') else // No default value. VTRowDataListColumns[i-1].Captions.Add('') else VTRowDataListColumns[i-1].Captions.Add('''' + FSelectedTableColumns.FieldByName('Default').AsString + ''''); VTRowDataListColumns[i-1].Captions.Add( FSelectedTableColumns.FieldByName('Extra').AsString ); if hasCommentColumn then VTRowDataListColumns[i-1].Captions.Add( FSelectedTableColumns.FieldByName('Comment').AsString ) else VTRowDataListColumns[i-1].Captions.Add(''); FSelectedTableColumns.Next; end; ListColumns.RootNodeCount := Length(VTRowDataListColumns); // Manually invoke OnChange event of tabset to fill helper list with data if tabsetQueryHelpers.TabIndex = 0 then tabsetQueryHelpers.OnChange( Self, tabsetQueryHelpers.TabIndex, dummy); Screen.Cursor := crHourglass; FSelectedTableKeys := GetResults( 'SHOW KEYS FROM ' + mask(table) ); for i:=1 to FSelectedTableKeys.RecordCount do begin // Search for the column name in listColumns for j:=0 to Length(VTRowDataListColumns)-1 do begin if FSelectedTableKeys.FieldByName('Column_name').AsString = VTRowDataListColumns[j].Captions[0] then begin // Only apply a new icon if it was not already changed if VTRowDataListColumns[j].ImageIndex <> ICONINDEX_FIELD then break; // Check if column is part of a fulltext key if mysql_version < 40002 then isFulltext := (FSelectedTableKeys.FieldByName('Comment').AsString = 'FULLTEXT') else isFulltext := (FSelectedTableKeys.FieldByName('Index_type').AsString = 'FULLTEXT'); // Primary key if FSelectedTableKeys.FieldByName('Key_name').AsString = 'PRIMARY' then VTRowDataListColumns[j].ImageIndex := ICONINDEX_PRIMARYKEY // Fulltext index else if isFullText then VTRowDataListColumns[j].ImageIndex := ICONINDEX_FULLTEXTKEY // Unique index else if FSelectedTableKeys.FieldByName('Non_unique').AsString = '0' then VTRowDataListColumns[j].ImageIndex := ICONINDEX_UNIQUEKEY // Normal index else VTRowDataListColumns[j].ImageIndex := ICONINDEX_INDEXKEY; // Column was found and processed break; end; end; FSelectedTableKeys.Next; end; { ** note, ansgarbecker, 2007-08-26 VT has a pretty autosorting feature, which keeps the sorting even after having filled it with new data. But: Don't use this auto-sorting here, neither automatically nor manual because that would cause big confusion to the user if a just clicked table displays its fields not in the natural order. @todo Detect if the list was just refreshed (and then keep sorting) or if another table get displayed (then don't sort, as below) } ListColumns.Header.SortColumn := -1; ListColumns.Header.SortDirection := sdAscending; finally ListColumns.EndUpdate; // Reselect previous selected nodes SetVTSelection(ListColumns, SelectedCaptions); Screen.Cursor := crDefault; end; pcChange( Self ); MainForm.ShowStatus( STATUS_MSG_READY ); MainForm.showstatus(ActiveDatabase + ': '+ table + ': ' + IntToStr(ListColumns.RootNodeCount) +' column(s)', 0); Screen.Cursor := crDefault; end; {*** Execute a query and return a resultset The currently active connection is used @param String The single SQL-query to be executed on the server } function TMDIChild.ExecuteQuery(query: String): TDataSet; begin result := GetResults(query, false, false); end; {*** Execute a query without returning a resultset The currently active connection is used @param String The single SQL-query to be executed on the server } procedure TMDIChild.ExecuteNonQuery(SQLQuery: String); begin ExecUpdateQuery(SQLQuery); end; {*** Selection in ListTables is changing } procedure TMDIChild.ListTablesChange(Sender: TBaseVirtualTree; Node: PVirtualNode); begin ValidateControls; end; {*** Enable/disable various buttons and menu items. Invoked when - active sheet changes - highlighted database changes - ChildWindow is activated / deactivated @param Boolean Is this form activated in terms of our remaining MDI-functionality? Only used with False by FormDeactivate-procedure to deactivate various controls on mainform } procedure TMDIChild.ValidateControls( FrmIsFocussed: Boolean = true ); var DBObjectSelected, TableSelected, ViewSelected, inDbTab, inTableTab, inDataTab, inQueryTab, inDataOrQueryTab, inDataOrQueryTabNotEmpty, FieldsSelected, FieldFocused, dummy : Boolean; NodeData: PVTreeData; SelectedNodes: TNodeArray; begin inDbTab := FrmIsFocussed and (PageControlMain.ActivePage = tabDatabase); inTableTab := FrmIsFocussed and (PageControlMain.ActivePage = tabTable); inDataTab := FrmIsFocussed and (PageControlMain.ActivePage = tabData); inDataOrQueryTab := FrmIsFocussed and ((PageControlMain.ActivePage = tabData) or (PageControlMain.ActivePage = tabQuery)); // Both the Query and the Data grid may have a nil DataSet reference, // either in case the relevant grid has not been used yet, or when // an error has occurred. inDataOrQueryTabNotEmpty := inDataOrQueryTab and not ( (GetVisualDataset.Rows = nil) or (Length(GetVisualDataset.Rows) = 0) ); inQueryTab := FrmIsFocussed and (PageControlMain.ActivePage = tabQuery); SelectedNodes := ListTables.GetSortedSelection(False); DBObjectSelected := (Length(SelectedNodes)>0) and FrmIsFocussed; TableSelected := False; ViewSelected := False; // Check type of first selected node, to en-/disable certain menu items if DBObjectSelected then begin NodeData := ListTables.GetNodeData( SelectedNodes[0] ); TableSelected := (NodeData.NodeType = NODETYPE_TABLE) or (NodeData.NodeType = NODETYPE_CRASHED_TABLE); ViewSelected := NodeData.NodeType = NODETYPE_VIEW; end; // Standard toolbar and main menu MainForm.actRefresh.Enabled := FrmIsFocussed; MainForm.actFlushHosts.Enabled := FrmIsFocussed; MainForm.actFlushLogs.Enabled := FrmIsFocussed; MainForm.actFlushPrivileges.Enabled := FrmIsFocussed; MainForm.actFlushTables.Enabled := FrmIsFocussed; MainForm.actFlushTableswithreadlock.Enabled := FrmIsFocussed; MainForm.actFlushStatus.Enabled := FrmIsFocussed; MainForm.actUserManager.Enabled := FrmIsFocussed; MainForm.actMaintenance.Enabled := FrmIsFocussed; MainForm.actInsertFiles.Enabled := FrmIsFocussed; // PrintList should only be active if we're focussing one of the ListViews, // at least as long we are not able to print DBGrids MainForm.actPrintList.Enabled := (not inDataOrQueryTab) and FrmIsFocussed; MainForm.actSQLhelp.Enabled := (mysql_version >= 40100) and FrmIsFocussed; MainForm.actImportCSV.Enabled := (mysql_version >= 32206) and FrmIsFocussed; MainForm.actExportTables.Enabled := FrmIsFocussed; // Database tab Mainform.actEmptyTables.Enabled := inDbTab and TableSelected; Mainform.actEditTableProperties.Enabled := inDbTab and TableSelected; MenuRenameTable.Enabled := inDbTab and DBObjectSelected; Mainform.actCopyTable.Enabled := inDbTab and DBObjectSelected; Mainform.actEditView.Enabled := inDbTab and ViewSelected and (mysql_version >= 50001); Mainform.actCreateView.Enabled := FrmIsFocussed and (ActiveDatabase <> '') and (mysql_version >= 50001); MainForm.actCreateDatabase.Enabled := FrmIsFocussed; MainForm.actDropDatabase.Enabled := (ActiveDatabase <> '') and FrmIsFocussed; MainForm.actEditDatabase.Enabled := (ActiveDatabase <> '') and FrmIsFocussed and (mysql_version >= 50002); if mysql_version < 50002 then MainForm.actEditDatabase.Hint := STR_NOTSUPPORTED else MainForm.actEditDatabase.Hint := 'Rename and/or modify character set of database'; MainForm.actDropTablesAndViews.Enabled := (DBObjectSelected and inDbTab) or ((not inQueryTab) and (SelectedTable <> '') and FrmIsFocussed); MainForm.actCreateTable.Enabled := (ActiveDatabase <> '') and FrmIsFocussed; Mainform.actEditTableFields.Enabled := DBObjectSelected and inDbTab; // Table tab FieldFocused := inTableTab and Assigned(ListColumns.FocusedNode); FieldsSelected := inTableTab and (Length(ListColumns.GetSortedSelection(False))>0); // Toggle state of menuitems and buttons Mainform.actEditField.Enabled := FieldFocused and FieldsSelected; Mainform.actCreateField.Enabled := inTableTab; Mainform.actDropFields.Enabled := FieldsSelected; Mainform.actEditIndexes.Enabled := inTableTab; menuRenameColumn.Enabled := FieldFocused and FieldsSelected; // Data tab Mainform.actDataInsert.Enabled := inDataTab; Mainform.CheckBoxLimit.Enabled := inTableTab or inDataTab; Mainform.EditLimitStart.Enabled := inTableTab or inDataTab; Mainform.UpDownLimitStart.Enabled := inTableTab or inDataTab; Mainform.EditLimitEnd.Enabled := inTableTab or inDataTab; Mainform.UpDownLimitEnd.Enabled := inTableTab or inDataTab; Mainform.ButtonOK.Enabled := inTableTab or inDataTab; // Activate export-options if we're on Data- or Query-tab MainForm.actCopyAsCSV.Enabled := inDataOrQueryTabNotEmpty; MainForm.actCopyAsHTML.Enabled := inDataOrQueryTabNotEmpty; MainForm.actCopyAsXML.Enabled := inDataOrQueryTabNotEmpty; MainForm.actExportData.Enabled := inDataOrQueryTabNotEmpty; MainForm.actHTMLView.Enabled := inDataOrQueryTabNotEmpty; // Query tab MainForm.actLoadSQL.Enabled := FrmIsFocussed; // Manually invoke OnChange event of tabset to fill helper list with data if inQueryTab and FrmIsFocussed then tabsetQueryHelpers.OnChange(Self, tabsetQueryHelpers.TabIndex, dummy); ValidateQueryControls(FrmIsFocussed); if not FrmIsFocussed then begin // Empty "connected" and "uptime" MainForm.showstatus('', 1); MainForm.showstatus('', 2); MainForm.showstatus('', 3); end; end; procedure TMDIChild.ValidateQueryControls(FrmIsFocussed: Boolean = true); var InQueryTab, NotEmpty, HasSelection: Boolean; begin InQueryTab := FrmIsFocussed and (PageControlMain.ActivePage = tabQuery); NotEmpty := FrmIsFocussed and (SynMemoQuery.GetTextLen > 0); HasSelection := FrmIsFocussed and SynMemoQuery.SelAvail; Mainform.actExecuteQuery.Enabled := InQueryTab and NotEmpty; Mainform.actExecuteSelection.Enabled := InQueryTab and HasSelection; Mainform.actExecuteLine.Enabled := InQueryTab and (SynMemoQuery.LineText <> ''); MainForm.actSaveSQL.Enabled := InQueryTab and NotEmpty; MainForm.actSaveSQLselection.Enabled := InQueryTab and HasSelection; MainForm.actSaveSQLSnippet.Enabled := InQueryTab and NotEmpty; MainForm.actSaveSQLSelectionSnippet.Enabled := InQueryTab and HasSelection; MainForm.actQueryFind.Enabled := InQueryTab and NotEmpty; MainForm.actQueryReplace.Enabled := InQueryTab and NotEmpty; MainForm.actQueryStopOnErrors.Enabled := InQueryTab; MainForm.actQueryWordWrap.Enabled := InQueryTab; Mainform.actClearQueryEditor.Enabled := InQueryTab and NotEmpty; Mainform.actSetDelimiter.Enabled := InQueryTab; end; procedure TMDIChild.ShowTableData(table: string); begin dataselected := false; PageControlMain.ActivePage := tabData; viewdata(self); pcChange( Self ); end; procedure TMDIChild.ShowVariablesAndProcesses(Sender: TObject); procedure addLVitem( caption: String; commandCount: Int64; totalCount: Int64 ); var i : Integer; tmpval : Double; begin SetLength( VTRowDataListCommandStats, Length(VTRowDataListCommandStats)+1 ); i := Length(VTRowDataListCommandStats)-1; VTRowDataListCommandStats[i].ImageIndex := 25; VTRowDataListCommandStats[i].Captions := TStringList.Create; caption := Copy( caption, 5, Length(caption) ); caption := StringReplace( caption, '_', ' ', [rfReplaceAll] ); VTRowDataListCommandStats[i].Captions.Add( caption ); // Total Frequency VTRowDataListCommandStats[i].Captions.Add( FormatNumber( commandCount ) ); // Average per hour uptime := max(uptime, 1); tmpval := commandCount / ( uptime / 60 / 60 ); VTRowDataListCommandStats[i].Captions.Add( FormatNumber( tmpval, 1 ) ); // Average per second tmpval := commandCount / uptime; VTRowDataListCommandStats[i].Captions.Add( FormatNumber( tmpval, 1 ) ); // Percentage. Take care of division by zero errors and Int64's if commandCount < 1 then commandCount := 1; if totalCount < 1 then totalCount := 1; tmpval := 100 / totalCount * commandCount; VTRowDataListCommandStats[i].Captions.Add( FormatNumber( tmpval, 1 ) + ' %' ); end; var i : Integer; questions : Int64; ds : TDataSet; SelectedCaptions: TStringList; begin // Refresh variables and process-list Screen.Cursor := crSQLWait; // Remember selected nodes SelectedCaptions := GetVTCaptions(ListVariables, True); // VARIABLES ListVariables.BeginUpdate; ListVariables.Clear; ds := GetResults( 'SHOW VARIABLES', false ); SetLength( VTRowDataListVariables, ds.RecordCount ); for i:=1 to ds.RecordCount do begin VTRowDataListVariables[i-1].ImageIndex := 25; VTRowDataListVariables[i-1].Captions := TStringList.Create; VTRowDataListVariables[i-1].Captions.Add( ds.Fields[0].AsString ); VTRowDataListVariables[i-1].Captions.Add( ds.Fields[1].AsString ); ds.Next; end; ds.Close; FreeAndNil(ds); // Tell VirtualTree the number of nodes it will display ListVariables.RootNodeCount := Length(VTRowDataListVariables); ListVariables.EndUpdate; SetVTSelection( ListVariables, SelectedCaptions ); // Apply filter if editFilterVariables.Text <> '' then editFilterVTChange(editFilterVariables); // Display number of listed values on tab tabVariables.Caption := 'Variables (' + IntToStr(ListVariables.RootNodeCount) + ')'; // STATUS uptime := 1; // avoids division by zero :) questions := 1; // Remember selected nodes SelectedCaptions := GetVTCaptions(ListStatus, True); ListStatus.BeginUpdate; ListStatus.Clear; ds := GetResults( 'SHOW /*!50002 GLOBAL */ STATUS' ); SetLength( VTRowDataListStatus, ds.RecordCount ); for i:=1 to ds.RecordCount do begin VTRowDataListStatus[i-1].ImageIndex := 25; VTRowDataListStatus[i-1].Captions := TStringList.Create; VTRowDataListStatus[i-1].Captions.Add( ds.Fields[0].AsString ); VTRowDataListStatus[i-1].Captions.Add( ds.Fields[1].AsString ); if lowercase( ds.Fields[0].AsString ) = 'uptime' then uptime := MakeInt(ds.Fields[1].AsString); if lowercase( ds.Fields[0].AsString ) = 'questions' then questions := MakeInt(ds.Fields[1].AsString); ds.Next; end; // Tell VirtualTree the number of nodes it will display ListStatus.RootNodeCount := Length(VTRowDataListStatus); ListStatus.EndUpdate; SetVTSelection( ListStatus, SelectedCaptions ); // Apply filter if editFilterStatus.Text <> '' then editFilterVTChange(editFilterStatus); // Display number of listed values on tab tabStatus.Caption := 'Status (' + IntToStr(ListStatus.RootNodeCount) + ')'; // Command-Statistics SelectedCaptions := GetVTCaptions(ListCommandStats, True); ListCommandStats.BeginUpdate; ListCommandStats.Clear; SetLength( VTRowDataListCommandStats, 0 ); addLVitem( ' All commands', questions, questions ); ds.First; for i:=1 to ds.RecordCount do begin if LowerCase( Copy( ds.Fields[0].AsString, 1, 4 ) ) = 'com_' then begin addLVitem( ds.Fields[0].AsString, MakeInt(ds.Fields[1].AsString), questions ); end; ds.Next; end; ds.Close; FreeAndNil(ds); // Tell VirtualTree the number of nodes it will display ListCommandStats.RootNodeCount := Length(VTRowDataListCommandStats); ListCommandStats.EndUpdate; SetVTSelection( ListCommandStats, SelectedCaptions ); TimerHostUptime.Enabled := true; TimerHostUptimeTimer(self); TimerHostUptime.OnTimer := TimerHostUptimeTimer; Screen.Cursor := crDefault; ShowProcesslist(self); // look at next procedure end; procedure TMDIChild.ShowProcessList(sender: TObject); var i,j : Integer; ds : TDataSet; SelectedCaptions: TStringList; begin // No need to update if it's not visible. if PageControlMain.ActivePage <> tabHost then exit; if PageControlHost.ActivePage <> tabProcesslist then exit; Screen.Cursor := crSQLWait; // Remember selected nodes SelectedCaptions := GetVTCaptions(ListProcesses, True); try ListProcesses.BeginUpdate; ListProcesses.Clear; debug('ShowProcessList()'); ds := GetResults('SHOW FULL PROCESSLIST', false, false); SetLength(VTRowDataListProcesses, ds.RecordCount); for i:=1 to ds.RecordCount do begin VTRowDataListProcesses[i-1].Captions := TStringList.Create; VTRowDataListProcesses[i-1].Captions.Add( ds.Fields[0].AsString ); if AnsiCompareText( ds.Fields[4].AsString, 'Killed') = 0 then VTRowDataListProcesses[i-1].ImageIndex := 26 // killed else begin if ds.FindField('Info').AsString = '' then VTRowDataListProcesses[i-1].ImageIndex := 55 // idle else VTRowDataListProcesses[i-1].ImageIndex := 57 // running query end; for j := 1 to 7 do VTRowDataListProcesses[i-1].Captions.Add(ds.Fields[j].AsString); ds.Next; end; ds.Close; FreeAndNil(ds); tabProcessList.Caption := 'Process-List (' + IntToStr(Length(VTRowDataListProcesses)) + ')'; except on E: Exception do begin LogSQL('Error loading process list (automatic refresh disabled): ' + e.Message); TimerHost.Enabled := false; end; end; ListProcesses.RootNodeCount := Length(VTRowDataListProcesses); ListProcesses.EndUpdate; // Reselect previous selected nodes SetVTSelection( ListProcesses, SelectedCaptions ); // Apply filter if editFilterProcesses.Text <> '' then editFilterVTChange(editFilterProcesses); Screen.Cursor := crDefault; end; procedure TMDIChild.KillProcess(Sender: TObject); var t : Boolean; ProcessIDs : TStringList; i : Integer; begin t := TimerHost.Enabled; TimerHost.Enabled := false; // prevent av (ListProcesses.selected...) ProcessIDs := GetVTCaptions( ListProcesses, True ); if MessageDlg('Kill '+inttostr(ProcessIDs.count)+' Process(es)?', mtConfirmation, [mbok,mbcancel], 0) = mrok then begin for i := 0 to ProcessIDs.Count - 1 do begin // Don't kill own process if ProcessIDs[i] = IntToStr( MySQLConn.Connection.GetThreadId ) then LogSQL('Ignoring own process id '+ProcessIDs[i]+' when trying to kill it.') else ExecUpdateQuery( 'KILL '+ProcessIDs[i] ); end; ShowVariablesAndProcesses(self); end; TimerHost.Enabled := t; // re-enable autorefresh timer end; procedure TMDIChild.PageControlHostChange(Sender: TObject); begin // Show processlist if it's visible now but empty yet if ListProcesses.RootNodeCount = 0 then ShowProcessList( self ); end; procedure TMDIChild.ExecSQLClick(Sender: TObject; Selection: Boolean=false; CurrentLine: Boolean=false); var SQL : WideStrings.TWideStringList; i, j : Integer; rowsaffected : Integer; SQLstart : Integer; SQLend : Integer; SQLscriptstart : Integer; SQLscriptend : Integer; SQLTime : Double; LastVistaCheck : Cardinal; VistaCheck : Boolean; fieldcount : Integer; recordcount : Integer; ds : TDataSet; ColName : WideString; col : TVirtualTreeColumn; begin if CurrentLine then SQL := parseSQL(SynMemoQuery.LineText) else if Selection then SQL := parseSQL(SynMemoQuery.SelText) else SQL := parseSQL(SynMemoQuery.Text); if ( SQL.Count = 0 ) then begin LabelResultinfo.Caption := '(nothing to do)'; Exit; end; SQLscriptstart := GetTickCount(); LastVistaCheck := GetTickCount(); LabelResultinfo.Caption := ''; ds := nil; try MainForm.showstatus( 'Initializing SQL...' ); Mainform.actExecuteQuery.Enabled := false; Mainform.actExecuteSelection.Enabled := false; // Let EnsureActiveDatabase know that we've fired user queries. UserQueryFiring := true; rowsaffected := 0; fieldcount := 0; recordcount := 0; ProgressBarQuery.Max := SQL.Count; ProgressBarQuery.Position := 0; ProgressBarQuery.Show(); MainForm.showstatus( 'Executing SQL...' ); for i := 0 to (SQL.Count - 1) do begin ProgressBarQuery.StepIt(); ProgressBarQuery.Repaint; if ( sql[i] = '' ) then begin continue; end; // open last query with data-aware: LabelResultinfo.Caption := ''; // ok, let's rock SQLstart := GetTickCount(); try VistaCheck := false; if GetTickCount() - LastVistaCheck > 2500 then begin VistaCheck := true; LastVistaCheck := GetTickCount(); end; ds := GetResults( SQL[i], false, false, VistaCheck ); if ( ds <> nil ) then begin fieldcount := ds.Fieldcount; recordcount := ds.Recordcount; rowsaffected := rowsaffected + TZQuery(ds).RowsAffected; end else begin fieldcount := 0; recordcount := 0; rowsaffected := FMysqlConn.Connection.GetAffectedRowsFromLastPost; end; except on E:Exception do begin if Mainform.actQueryStopOnErrors.Checked or (i = SQL.Count - 1) then begin Screen.Cursor := crDefault; MessageDlg( E.Message, mtError, [mbOK], 0 ); ProgressBarQuery.Hide(); Mainform.actExecuteQuery.Enabled := true; Mainform.actExecuteSelection.Enabled := true; Break; end; end; end; SQLend := GetTickCount(); SQLTime := (SQLend - SQLstart) / 1000; LabelResultinfo.Caption := FormatNumber( rowsaffected ) +' row(s) affected, '+ FormatNumber( fieldcount ) +' column(s) / '+ FormatNumber( recordcount ) +' row(s) in last result set.'; if ( SQL.Count = 1 ) then begin LabelResultinfo.Caption := LabelResultinfo.Caption + ' Query time: '+ FormatNumber( SQLTime, 3) +' sec.'; end; end; ProgressBarQuery.Hide(); ValidateQueryControls; if ( SQL.Count > 1 ) then begin SQLscriptend := GetTickCount(); SQLTime := (SQLscriptend - SQLscriptstart) / 1000; LabelResultinfo.Caption := LabelResultinfo.Caption +' Batch time: '+ FormatNumber( SQLTime, 3 ) +' sec.'; end; finally // Let EnsureActiveDatabase know that we've fired user queries. UserQueryFired := true; UserQueryFiring := false; // Avoid excessive GridHighlightChanged() when flicking controls. viewingdata := true; if ds <> nil then begin QueryGrid.Header.Options := QueryGrid.Header.Options + [hoVisible]; QueryGrid.Header.Columns.Clear; SetLength(FQueryGridResult.Columns, 0); SetLength(FQueryGridResult.Columns, ds.FieldCount); for i:=0 to ds.FieldCount-1 do begin ColName := ds.Fields[i].FieldName; col := QueryGrid.Header.Columns.Add; col.Text := ColName; col.Width := prefDefaultColWidth; col.Options := col.Options - [coAllowClick]; FQueryGridResult.Columns[i].Name := ColName; if ds.Fields[i].DataType in [ftSmallint, ftInteger, ftWord, ftLargeint] then begin FQueryGridResult.Columns[i].IsInt := True; col.Alignment := taRightJustify; end else if ds.Fields[i].DataType in [ftFloat] then begin FQueryGridResult.Columns[i].IsFloat := True; col.Alignment := taRightJustify; end else if ds.Fields[i].DataType in [ftDate, ftTime, ftDateTime, ftTimeStamp] then FQueryGridResult.Columns[i].IsDate := True else if ds.Fields[i].DataType in [ftWideString, ftMemo, ftWideMemo] then FQueryGridResult.Columns[i].IsText := True else if ds.Fields[i].DataType in [ftBlob] then FQueryGridResult.Columns[i].IsBlob := True; end; SetLength(FQueryGridResult.Rows, 0); SetLength(FQueryGridResult.Rows, ds.RecordCount); ds.First; for i:=0 to ds.RecordCount-1 do begin SetLength(FQueryGridResult.Rows[i].Cells, ds.FieldCount); for j:=0 to ds.FieldCount-1 do begin FQueryGridResult.Rows[i].Cells[j].Text := ds.Fields[j].AsWideString; FQueryGridResult.Rows[i].Cells[j].IsNull := ds.Fields[j].IsNull; end; ds.Next; end; ds.Free; QueryGrid.RootNodeCount := Length(FQueryGridResult.Rows); QueryGrid.EndUpdate; end; // Ensure controls are in a valid state ValidateControls; viewingdata := false; Screen.Cursor := crDefault; MainForm.ShowStatus( STATUS_MSG_READY ); end; end; {** Clicked somewhere in the field-list of the "Table"-tabsheet } procedure TMDIChild.ListColumnsChange(Sender: TBaseVirtualTree; Node: PVirtualNode); begin ValidateControls; end; { Proposal about to insert a String into synmemo } procedure TMDIChild.SynCompletionProposal1CodeCompletion(Sender: TObject; var Value: WideString; Shift: TShiftState; Index: Integer; EndToken: WideChar); begin SynCompletionProposal1.Editor.UndoList.AddGroupBreak; end; procedure TMDIChild.SynCompletionProposal1AfterCodeCompletion(Sender: TObject; const Value: WideString; Shift: TShiftState; Index: Integer; EndToken: WideChar); begin SynCompletionProposal1.Editor.UndoList.AddGroupBreak; end; { Proposal-Combobox pops up } procedure TMDIChild.SynCompletionProposal1Execute(Kind: SynCompletionType; Sender: TObject; var CurrentInput: WideString; var x, y: Integer; var CanExecute: Boolean); var i,j : Integer; ds : TDataset; sql, TableClauses: String; Tables : TStringList; tablename : String; rx : TRegExpr; procedure addTable( Fields: TFields ); var ObjName, ObjType: String; begin ObjName := Fields[0].AsString; case GetDBObjectType(Fields) of NODETYPE_CRASHED_TABLE: ObjType := 'table'; NODETYPE_TABLE: ObjType := 'table'; NODETYPE_VIEW: ObjType := 'view'; else ObjType := 'unknown'; end; SynCompletionProposal1.InsertList.Add( ObjName ); SynCompletionProposal1.ItemList.Add( '\hspace{2}\color{'+ColorToString(SynSQLSyn1.TableNameAttri.Foreground)+'}'+ObjType+'\color{clWindowText}\column{}' + ObjName ); end; procedure addColumns( tablename: String ); var dbname : String; i : Integer; ds : TDataSet; begin dbname := ActiveDatabase; if Pos( '.', tablename ) > -1 then begin dbname := Copy( tablename, 0, Pos( '.', tablename )-1 ); tablename := Copy( tablename, Pos( '.', tablename )+1, Length(tablename) ); end; // Do not mask db and table name to avoid double masking. // Rely on what the user typed is already a valid masked/quoted identifier. if dbname <> '' then tablename := dbname + '.' + tablename; ds := getResults( 'SHOW COLUMNS FROM '+Mask(tablename), true, false ); if ds = nil then exit; for i:=0 to ds.RecordCount-1 do begin SynCompletionProposal1.InsertList.Add( ds.FieldByName( 'Field' ).AsString ); SynCompletionProposal1.ItemList.Add( '\hspace{2}\color{'+ColorToString(clTeal)+'}column\color{clWindowText}\column{}' + ds.FieldByName( 'Field' ).AsString + '\style{-B} ' + ds.FieldByName( 'Type' ).AsString ); ds.Next; end; ds.Close; FreeAndNil(ds); end; begin SynCompletionProposal1.InsertList.Clear; SynCompletionProposal1.ItemList.Clear; // Get column-names into the proposal pulldown // when we write sql like "SELECT t.|col FROM table [AS] t" // Current limitation: Identifiers (masked or not) containing // spaces are not detected correctly. // 1. find the currently edited sql-statement around the cursor position in synmemo j := Length(SynCompletionProposal1.Editor.Text); for i := SynCompletionProposal1.Editor.SelStart+1024 downto SynCompletionProposal1.Editor.SelStart-1024 do begin if i > j then continue; if i < 1 then break; sql := SynCompletionProposal1.Editor.Text[i] + sql; end; // 2. Parse FROM clause to detect relevant table/view, probably aliased rx := TRegExpr.Create; rx.ModifierG := True; rx.ModifierI := True; rx.Expression := '\b(FROM|INTO|UPDATE)\s+(.+)(WHERE|HAVING|ORDER|GROUP)?'; if rx.Exec(sql) then begin TableClauses := rx.Match[2]; // Ensure tables in JOIN clause(s) are splitted by comma TableClauses := StringReplace(TableClauses, 'JOIN', ',', [rfReplaceAll, rfIgnoreCase]); // Split table clauses by commas Tables := TStringList.Create; Tables.Delimiter := ','; Tables.StrictDelimiter := true; Tables.DelimitedText := TableClauses; rx.Expression := '`?(\w+)`?(\s+(AS\s+)?`?(\w+)`?)?'; for i := 0 to Tables.Count - 1 do begin // If the just typed word equals the alias of this table or the // tablename itself, set tablename var and break loop if rx.Exec(Tables[i]) then begin if (TrimC(SynCompletionProposal1.PreviousToken,'`') = TrimC(rx.Match[4],'`') ) or (SynCompletionProposal1.PreviousToken = rx.Match[1]) then begin tablename := Trim(rx.Match[1]); break; end; end; end; end; rx.Free; if (tablename <> '') then begin // add columns to proposal addColumns( tablename ); end else if SynCompletionProposal1.PreviousToken <> '' then begin // assuming previoustoken itself is a table addColumns( SynCompletionProposal1.PreviousToken ); end; if Length(CurrentInput) = 0 then // makes only sense if the user has typed "database." begin i := Databases.IndexOf( SynCompletionProposal1.PreviousToken ); if i > -1 then begin // Only display tables from specified db Screen.Cursor := crHourGlass; ds := FetchDbTableList(Databases[i]); while not ds.Eof do begin addTable(ds.Fields); ds.Next; end; Screen.Cursor := crDefault; end; end; if (SynCompletionProposal1.ItemList.count = 0) and (Length(CurrentInput)>0) then begin // Add databases SynCompletionProposal1.InsertList.AddStrings( Databases ); SynCompletionProposal1.ItemList.AddStrings( Databases ); for i:=0 to SynCompletionProposal1.ItemList.count-1 do SynCompletionProposal1.ItemList[i] := '\hspace{2}\color{'+ColorToString(SynSQLSyn1.TableNameAttri.Foreground)+'}database\color{clWindowText}\column{}' + SynCompletionProposal1.ItemList[i]; if ActiveDatabase <> '' then begin // Display tables from current db ds := FetchActiveDbTableList; while not ds.Eof do begin addTable(ds.Fields); ds.Next; end; if Length(CurrentInput) = 0 then // assume that we have already a dbname in memo SynCompletionProposal1.Position := Databases.Count; end; // Add functions for i := 0 to Length(MySQLFunctions) - 1 do begin // Don't display unsupported functions here if MySqlFunctions[i].Version > mysql_version then continue; SynCompletionProposal1.InsertList.Add( MySQLFunctions[i].Name + MySQLFunctions[i].Declaration ); SynCompletionProposal1.ItemList.Add( '\hspace{2}\color{'+ColorToString(SynSQLSyn1.FunctionAttri.Foreground)+'}function\color{clWindowText}\column{}' + MySQLFunctions[i].Name + '\style{-B}' + MySQLFunctions[i].Declaration ); end; // Add keywords for i := 0 to MYSQL_KEYWORDS.Count - 1 do begin SynCompletionProposal1.InsertList.Add( MYSQL_KEYWORDS[i] ); SynCompletionProposal1.ItemList.Add( '\hspace{2}\color{'+ColorToString(SynSQLSyn1.KeyAttri.Foreground)+'}keyword\color{clWindowText}\column{}'+MYSQL_KEYWORDS[i] ); end; end; end; procedure TMDIChild.SynMemoQueryStatusChange(Sender: TObject; Changes: TSynStatusChanges); begin ValidateQueryControls; end; procedure TMDIChild.TimerHostUptimeTimer(Sender: TObject); var days, hours, minutes, seconds : Integer; msg: string; begin // Host-Uptime days:= uptime div (60*60*24); seconds := uptime mod (60*60*24); hours := seconds div (60*60); seconds := seconds mod (60*60); minutes := seconds div 60; seconds := seconds mod 60; inc(uptime); msg := Format('%d days, %.2d:%.2d:%.2d', [days,hours,minutes,seconds]); if TimerHostUptime.Enabled then msg := Format('Uptime: %s', [msg]) else msg := ''; Mainform.showstatus(msg, 3); end; procedure TMDIChild.FormActivate(Sender: TObject); begin TimerConnected.OnTimer(self); end; procedure TMDIChild.FormShow(Sender: TObject); begin { TODO : only load file when autoconnected ?? } if (paramstr(1) <> '') and Main.loadsqlfile then try // load sql-file from paramstr SynMemoQuery.Lines.LoadFromFile(paramstr(1)); Main.loadsqlfile := false; except MessageDLG('File could not be opened: ' + paramstr(1), mtError, [mbOK], 0); end; //TODO: //ds.DisableControls; end; {*** Rename table after checking the new name for invalid characters } procedure TMDIChild.ListTablesNewText(Sender: TBaseVirtualTree; Node: PVirtualNode; Column: TColumnIndex; NewText: WideString); var NodeData : PVTreeData; begin // Fetch data from node NodeData := Sender.GetNodeData(Node); // Try to rename, on any error abort and don't rename ListItem try ensureValidIdentifier( NewText ); // rename table ExecUpdateQuery( 'ALTER TABLE ' + mask(NodeData.Captions[0]) + ' RENAME ' + mask(NewText), False, False ); if SynSQLSyn1.TableNames.IndexOf( NewText ) = -1 then begin SynSQLSyn1.TableNames.Add(NewText); end; // Update nodedata NodeData.Captions[0] := NewText; // Now the active tree db has to be updated. But calling RefreshTreeDB here causes an AV // so we do it manually here RefreshActiveDbTableList; DBTree.InvalidateChildren(FindDBNode(ActiveDatabase), True); except On E : Exception do begin MessageDlg( E.Message, mtError, [mbOK], 0 ); end; end; end; procedure TMDIChild.MenuRenameTableClick(Sender: TObject); begin // menuitem for edit table-name ListTables.EditNode( ListTables.FocusedNode, 0 ); end; procedure TMDIChild.TimerConnectedTimer(Sender: TObject); begin if not TimerConnected.Enabled then begin MainForm.showstatus('Disconnected.', 1); exit; end; inc(time_connected); // calculate and display connection-time MainForm.showstatus( 'Connected: ' + FormatTimeNumber(time_connected), 1 ); end; procedure TMDIChild.Clear2Click(Sender: TObject); begin // clear history-memo Screen.Cursor := crHourglass; SynMemoSQLLog.Lines.Clear; Screen.Cursor := crDefault; end; procedure TMDIChild.EditQuery1Click(Sender: TObject); begin // take query from history to query-tab SynMemoQuery.Text := SynMemoSQLLog.SelText; PageControlMain.ActivePage := tabQuery; pcChange(self); end; procedure TMDIChild.Markall3Click(Sender: TObject); begin // select all in history SynMemoSQLLog.SelectAll; end; procedure TMDIChild.ListTablesDblClick(Sender: TObject); begin Mainform.actEditTableFields.Execute; end; procedure TMDIChild.TimerConnectErrorCloseWindowTimer(Sender: TObject); begin // can't connect -> close MDI-Child TimerConnectErrorCloseWindow.Enabled := false; Mainform.Showstatus('', 1); MainForm.ShowStatus( STATUS_MSG_READY ); close; end; {** Column-title clicked -> generate "ORDER BY" } procedure TMDIChild.QuickFilterClick(Sender: TObject); var filter,value,column : WideString; menuitem : TMenuItem; begin // Set filter for "where..."-clause value := DataGrid.Text[DataGrid.FocusedNode, DataGrid.FocusedColumn]; menuitem := (Sender as TMenuItem); column := mask(DataGrid.Header.Columns[DataGrid.FocusedColumn].Text); if menuitem = QF1 then filter := column + ' =' + ' ' + esc( value ) else if menuitem = QF2 then filter := column + ' !=' + ' ' + esc( value ) else if menuitem = QF3 then filter := column + ' >' + ' ' + esc( value ) else if menuitem = QF4 then filter := column + ' <' + ' ' + esc( value ) else if menuitem = QF5 then filter := column + ' LIKE' + ' ''' + esc( value, true ) + '%''' else if menuitem = QF6 then filter := column + ' LIKE' + ' ''%' + esc( value, true ) + '''' else if menuitem = QF7 then filter := column + ' LIKE' + ' ''%' + esc( value, true ) + '%''' else if menuitem = QF8 then begin filter := InputBox('Specify filter-value...', column+' = ', 'Value'); if filter = 'Value' then abort; filter := column + ' = ''' + filter + ''''; end else if menuitem = QF9 then begin filter := InputBox('Specify filter-value...', column+' != ', 'Value'); if filter = 'Value' then abort; filter := column + ' != ''' + filter + ''''; end else if menuitem = QF10 then begin filter := InputBox('Specify filter-value...', column+' > ', 'Value'); if filter = 'Value' then abort; filter := column + ' > ''' + filter + ''''; end else if menuitem = QF11 then begin filter := InputBox('Specify filter-value...', column+' < ', 'Value'); if filter = 'Value' then abort; filter := column + ' < ''' + filter + ''''; end else if menuitem = QF12 then begin filter := InputBox('Specify filter-value...', column+' LIKE ', 'Value'); if filter = 'Value' then abort; filter := column + ' LIKE ''%' + filter + '%'''; end // Filters with text from clipboard else if (menuitem = QF13) or (menuitem = QF14) or (menuitem = QF15) or (menuitem = QF16) or (menuitem = QF17) then begin filter := menuitem.Caption; end; SynmemoFilter.Text := filter; SaveFilter(filter); viewdata(Sender); end; function TMDIChild.GetFilter: WideString; var SomeFilter: Boolean; begin // Read cached WHERE-clause and set filter if prefRememberFilters then Result := Mainform.GetRegValue( REGPREFIX_WHERECLAUSE + ActiveDatabase + '.' + SelectedTable, '', FConn.Description ) else Result := SynMemoFilter.Text; SomeFilter := Result <> ''; if SomeFilter then tbtnDataFilter.ImageIndex := 108 else tbtnDataFilter.ImageIndex := 107; // Ensure filter panel is visible if SomeFilter then ToggleFilterPanel(True); // Hide it if it was auto opened previously if (not SomeFilter) and pnlFilter.Visible and (not FilterPanelManuallyOpened) then ToggleFilterPanel; SynMemoFilter.Text := Result; SynMemoFilterChange(Self); end; procedure TMDIChild.SaveFilter(Clause: WideString = ''); var regname: String; begin // Store whereclause in Registry if prefRememberFilters then begin Mainform.regMain.openkey( REGPATH + REGKEY_SESSIONS + FConn.Description, false ); regname := REGPREFIX_WHERECLAUSE + ActiveDatabase + '.' + SelectedTable; if Clause <> '' then Mainform.regMain.WriteString( regname, Clause ) else if Mainform.regMain.ValueExists( regname ) then Mainform.regMain.DeleteValue( regname ); end end; procedure TMDIChild.DropFilter1Click(Sender: TObject); begin // Drop Filter SaveFilter; viewdata(Sender); end; // select all tables procedure TMDIChild.selectall1Click(Sender: TObject); begin ListTables.SelectAll(False); end; procedure TMDIChild.popupQueryPopup(Sender: TObject); begin // Sets cursor into memo and activates TAction(s) like paste SynMemoQuery.SetFocus; end; procedure TMDIChild.popupResultGridPopup(Sender: TObject); begin // data available? // MainForm.Save2CSV.enabled := end; procedure TMDIChild.controlsKeyUp(Sender: TObject; var Key: Word; Shift: TShiftState); var Grid : TVirtualStringTree; CB: TUniClipboard; begin // Check for F1-pressed if Key = VK_F1 then Mainform.actSQLhelp.Execute // Simulate Ctrl+A-behaviour of common editors else if ( Shift = [ssCtrl] ) and ( Key = Ord('A') ) then begin if Sender is TCustomEdit then TCustomEdit(Sender).SelectAll; end // Enable copy + paste shortcuts in dbgrids else if (Sender is TVirtualStringTree) and (not TVirtualStringTree(Sender).IsEditing) and (Shift = [ssCtrl]) and (Assigned(TVirtualStringTree(Sender).FocusedNode)) then begin Grid := Sender as TVirtualStringTree; // TODO: Clipboard.AsText is not Unicode safe! if Key = Ord('C') then CopyToClipboard(Grid.Text[Grid.FocusedNode, Grid.FocusedColumn]) else if Key = Ord('V') then begin CB := TUniClipboard.Create; Grid.Text[Grid.FocusedNode, Grid.FocusedColumn] := CB.AsWideString; end else if Key = Ord('X') then begin CopyToClipboard(Grid.Text[Grid.FocusedNode, Grid.FocusedColumn]); Grid.Text[Grid.FocusedNode, Grid.FocusedColumn] := ''; end; end; end; procedure TMDIChild.Autoupdate1Click(Sender: TObject); var seconds : String; secondsInt : Integer; begin // set interval for autorefresh-timer seconds := IntToStr(TimerHost.interval div 1000); if inputquery('Auto-refresh processlist','Update list every ... seconds:', seconds) then begin secondsInt := StrToIntDef(seconds, 0); if secondsInt > 0 then begin TimerHost.Interval := secondsInt * 1000; TimerHost.Enabled := true; EnableAutoRefresh.Checked := true; DisableAutoRefresh.Checked := false; end else MessageDLG('Seconds must be between 1 and ' + IntToStr(maxint) + '.', mtError, [mbOK], 0); end; end; procedure TMDIChild.EnableAutoRefreshClick(Sender: TObject); begin // enable autorefresh-timer TimerHost.Enabled := true; EnableAutoRefresh.Checked := true; DisableAutoRefresh.Checked := false; end; procedure TMDIChild.DisableAutoRefreshClick(Sender: TObject); begin // enable autorefresh-timer TimerHost.Enabled := false; EnableAutoRefresh.Checked := false; DisableAutoRefresh.Checked := true; end; procedure TMDIChild.SynMemoQueryDragOver(Sender, Source: TObject; X, Y: Integer; State: TDragState; var Accept: Boolean); var src : TControl; begin // dragging an object over the query-memo src := Source as TControl; // Accepting drag's from DBTree and QueryHelpers Accept := (src = DBtree) or (src = lboxQueryHelpers); // set x-position of cursor SynMemoQuery.CaretX := (x - SynMemoQuery.Gutter.Width) div SynMemoQuery.CharWidth - 1 + SynMemoQuery.LeftChar; // set y-position of cursor SynMemoQuery.CaretY := y div SynMemoQuery.LineHeight + SynMemoQuery.TopLine; if not SynMemoQuery.Focused then SynMemoQuery.SetFocus; end; procedure TMDIChild.SynMemoQueryDragDrop(Sender, Source: TObject; X, Y: Integer); var src : TControl; Text : String; LoadText : Boolean; i: Integer; begin // dropping a tree node or listbox item into the query-memo SynMemoQuery.UndoList.AddGroupBreak; src := Source as TControl; Text := 'Error: Unspecified source control in drag''n drop operation!'; LoadText := True; // Check for allowed controls as source has already // been performed in OnDragOver. So, only do typecasting here. if src = DBtree then Text := DBtree.Text[DBtree.GetFirstSelected, 0] else if (src = lboxQueryHelpers) and ((src as TListBox).ItemIndex > -1) then begin // Snippets tab if tabsetQueryHelpers.TabIndex = 3 then begin QueryLoad( DIRNAME_SNIPPETS + lboxQueryHelpers.Items[lboxQueryHelpers.ItemIndex] + '.sql', False ); LoadText := False; // All other tabs end else begin Text := ''; for i := 0 to lboxQueryHelpers.Items.Count - 1 do begin if lboxQueryHelpers.Selected[i] then Text := Text + lboxQueryHelpers.Items[i] + ', '; end; Delete(Text, Length(Text)-1, 2); end; end; // Only insert text if no previous action did the job. // Should be false when dropping a snippet-file here if LoadText then SynMemoQuery.SelText := Text; SynMemoQuery.UndoList.AddGroupBreak; end; procedure TMDIChild.SynMemoQueryDropFiles(Sender: TObject; X, Y: Integer; AFiles: TWideStrings); var i : Integer; begin // one or more files from explorer or somewhere else was // dropped onto the query-memo - let's load their contents: for i:=0 to AFiles.Count-1 do begin if fileExists(AFiles[i]) then begin QueryLoad( AFiles[i], false ); end; end; end; procedure TMDIChild.popupHostPopup(Sender: TObject); begin Kill1.Enabled := (PageControlHost.ActivePage = tabProcessList) and Assigned(ListProcesses.FocusedNode); menuEditVariable.Enabled := False; if mysql_version >= 40003 then menuEditVariable.Enabled := (PageControlHost.ActivePage = tabVariables) and Assigned(ListVariables.FocusedNode) else menuEditVariable.Hint := STR_NOTSUPPORTED; end; procedure TMDIChild.Saveastextfile1Click(Sender: TObject); begin with TSaveDialog.Create(self) do begin Filter := 'Textfiles (*.txt)|*.txt|All Files (*.*)|*.*'; DefaultExt := 'txt'; FilterIndex := 1; Options := [ofOverwritePrompt,ofHideReadOnly,ofEnableSizing]; if Execute then begin Screen.Cursor := crHourglass; SynMemoSQLLog.Lines.SaveToFile(Filename); Screen.Cursor := crdefault; end; end; end; procedure TMDIChild.popupTreeViewPopup(Sender: TObject); var L: Cardinal; begin // toggle drop-items and remember right-clicked item if DBtree.GetFirstSelected = nil then L := 0 else L := DBtree.GetNodeLevel(DBtree.GetFirstSelected); Mainform.actCreateTable.Enabled := L in [1,2]; Mainform.actCreateView.Enabled := (L in [1,2]) and (mysql_version >= 50001); Mainform.actEditTableProperties.Enabled := (L = 2) and ((GetSelectedNodeType = NODETYPE_TABLE) or (GetSelectedNodeType = NODETYPE_CRASHED_TABLE)); Mainform.actEditView.Enabled := (L = 2) and (GetSelectedNodeType = NODETYPE_VIEW); MainForm.actDropTablesAndViews.Enabled := (L = 2); end; procedure TMDIChild.QueryLoad( filename: String; ReplaceContent: Boolean = true ); var filecontent : WideString; msgtext : String; begin // Ask for action when loading a big file if FileExists(filename) and (_GetFileSize( filename ) > 5*SIZE_MB) then begin msgtext := 'The file you are about to load is bigger than '+FormatByteNumber(5*SIZE_MB, 0)+'.' + CRLF + CRLF + 'Do you want to just run the file to avoid loading it completely into the query-editor ( = memory ) ?' + CRLF + CRLF + 'Press' + CRLF + ' [Yes] to run the file without loading it into the editor' + CRLF + ' [No] to load the file into the query editor' + CRLF + ' [Cancel] to cancel file opening.'; case MessageDlg( msgtext, mtWarning, [mbYes, mbNo, mbCancel], 0 ) of // Run the file, don't load it into the editor mrYes: begin RunSQLFileWindow( Self, filename ); // Add filename to history menu if Pos( DIRNAME_SNIPPETS, filename ) = 0 then Mainform.AddOrRemoveFromQueryLoadHistory( filename, true ); // Don't load into editor Abort; end; // Do nothing here, go ahead and load the file normally into the editor mrNo:; // Cancel opening file mrCancel: Abort; end; end; // Load file and add that to the undo-history of SynEdit. // Normally we would do a simple SynMemo.Lines.LoadFromFile but // this would prevent SynEdit from adding this step to the undo-history // so we have to do it by replacing the SelText property Screen.Cursor := crHourGlass; try filecontent := ReadTextfile(filename); if Pos( DIRNAME_SNIPPETS, filename ) = 0 then Mainform.AddOrRemoveFromQueryLoadHistory( filename, true ); Mainform.FillPopupQueryLoad; PagecontrolMain.ActivePage := tabQuery; SynCompletionProposal1.Editor.UndoList.AddGroupBreak; SynMemoQuery.BeginUpdate; if ReplaceContent then SynMemoQuery.SelectAll; SynMemoQuery.SelText := filecontent; SynMemoQuery.SelStart := SynMemoQuery.SelEnd; SynMemoQuery.EndUpdate; except on E:Exception do // File does not exist, is locked or broken MessageDlg(E.message, mtError, [mbOK], 0); end; Screen.Cursor := crDefault; end; procedure TMDIChild.SaveDialogExportDataTypeChange(Sender: TObject); begin // Set default file-extension of saved file and options on the dialog to show with SaveDialogExportData do begin Case FilterIndex of 1 : begin DefaultExt := 'csv'; VisibleOptions := voCSV; end; 2 : begin DefaultExt := 'html'; VisibleOptions := voHTML; end; 3 : begin DefaultExt := 'xml'; VisibleOptions := voHTML; end; end; end; end; {** A cell in a DBGrid is painted. Sets custom background color NULL fields. } procedure TMDIChild.popupDataGridPopup(Sender: TObject); var y,m,d,h,i,s,ms : Word; cpText, selectedColumn, value : String; const CLPBRD : String = 'CLIPBOARD'; begin {DONE -oFrancisco -cData-browsing:Bugfix: [1650528] Access violation with F5} if Assigned(DataGrid.FocusedNode) and (DataGrid.FocusedColumn > -1) then begin DataInsertDateTime.Enabled := FDataGridResult.Columns[DataGrid.FocusedColumn].IsDate; if DataInsertDateTime.Enabled then begin decodedate(now, y, m, d); decodetime(now, h, i, s, ms); DataDateTime.Caption := Format('%.4d-%.2d-%.2d %.2d:%.2d:%.2d', [y,m,d,h,i,s]); DataDate.Caption := Format('%.4d-%.2d-%.2d', [y,m,d]); DataTime.Caption := Format('%.2d:%.2d:%.2d', [h,i,s]); DataTimestamp.caption := Format('%.4d%.2d%.2d%.2d%.2d%.2d', [y,m,d,h,i,s]); DataYear.Caption := Format('%.4d', [y]); end; // Manipulate the Quick-filter menuitems selectedColumn := mask(DataGrid.Header.Columns[DataGrid.FocusedColumn].Text); // 1. block: include selected columnname and value from datagrid in caption value := sstr(DataGrid.Text[DataGrid.FocusedNode, DataGrid.FocusedColumn], 100); QF1.Caption := selectedColumn + ' = ' + esc( value ); QF2.Caption := selectedColumn + ' != ' + esc( value ); QF3.Caption := selectedColumn + ' > ' + esc( value ); QF4.Caption := selectedColumn + ' < ' + esc( value ); QF5.Caption := selectedColumn + ' LIKE ''' + esc( value, true ) + '%'''; QF6.Caption := selectedColumn + ' LIKE ''%' + esc( value, true ) + ''''; QF7.Caption := selectedColumn + ' LIKE ''%' + esc( value, true ) + '%'''; // 2. block: include only selected columnname in caption QF8.Caption := selectedColumn + ' = "..."'; QF9.Caption := selectedColumn + ' != "..."'; QF10.Caption := selectedColumn + ' > "..."'; QF11.Caption := selectedColumn + ' < "..."'; QF12.Caption := selectedColumn + ' LIKE "%...%"'; // 3. block: include selected columnname and clipboard-content in caption for one-click-filtering cpText := Clipboard.AsText; if Length(cpText) < 100 then begin QF13.Enabled := true; QF13.Caption := selectedColumn + ' = ' + esc( cpText ); QF14.Enabled := true; QF14.Caption := selectedColumn + ' != ' + esc( cpText ); QF15.Enabled := true; QF15.Caption := selectedColumn + ' > ' + esc( cpText ); QF16.Enabled := true; QF16.Caption := selectedColumn + ' < ' + esc( cpText ); QF17.Enabled := true; QF17.Caption := selectedColumn + ' LIKE ''%' + esc( cpText, true ) + '%'''; end else begin QF13.Enabled := false; QF13.Caption := selectedColumn + ' = ' + CLPBRD; QF14.Enabled := false; QF14.Caption := selectedColumn + ' != ' + CLPBRD; QF15.Enabled := false; QF15.Caption := selectedColumn + ' > ' + CLPBRD; QF16.Enabled := false; QF16.Caption := selectedColumn + ' < ' + CLPBRD; QF17.Enabled := false; QF17.Caption := selectedColumn + ' LIKE %' + CLPBRD + '%'; end; end; end; procedure TMDIChild.InsertDate(Sender: TObject); var d : String; begin // Insert date/time-value into table d := (sender as TMenuItem).Caption; delete(d, Pos('&', d), 1); DataGrid.Text[DataGrid.FocusedNode, DataGrid.FocusedColumn] := d; end; procedure TMDIChild.ExecUseQuery(db: WideString; HandleErrors: Boolean = false; DisplayErrors: Boolean = false); begin ExecUpdateQuery('USE ' + mask(db), HandleErrors, DisplayErrors); FConn.MysqlParams.Database := db; end; {*** Execute a query without returning a resultset The currently active connection is used @param String The single SQL-query to be executed on the server } function TMDIChild.ExecUpdateQuery(sql: WideString; HandleErrors: Boolean = false; DisplayErrors: Boolean = false): Int64; var MysqlQuery : TMysqlQuery; ds: TDataSet; begin Result := -1; // Silence compiler warning. MysqlQuery := nil; try try // Start query execution MysqlQuery := RunThreadedQuery(sql, false); Result := FMysqlConn.Connection.GetAffectedRowsFromLastPost; // Inspect query result code and log / notify user on failure if MysqlQuery.Result in [MQR_CONNECT_FAIL,MQR_QUERY_FAIL] then begin raise Exception.Create(MysqlQuery.Comment); end; except on E: Exception do begin LogSQL( E.Message, True ); if DisplayErrors then MessageDlg( E.Message, mtError, [mbOK], 0 ); // Recreate exception, since we free it below the caller // won't know what happened otherwise. if not HandleErrors then raise THandledSQLError.Create(MysqlQuery.Comment); Result := -1; end; end; finally // Cleanup the MysqlQuery object, we won't need it anymore if MysqlQuery <> nil then begin if MysqlQuery.MysqlDataset <> nil then MysqlQuery.MysqlDataset.Close; ds := MysqlQuery.MysqlDataset; FreeAndNil(ds); end; FreeAndNil (MysqlQuery); end; end; {*** Execute a query which may return a resultset. The caller is responsible for freeing the MysqlQuery object and its Dataset member, only on returnvalue True. The currently active connection is used @param String The single SQL-query to be executed on the server @return TMysqlQuery Containing the dataset and info data availability } function TMDIChild.ExecSelectQuery(sql: WideString; HandleErrors: Boolean = false; DisplayErrors: Boolean = false; ForceDialog: Boolean = false): TDataSet; var res: TMysqlQuery; begin res := nil; result := nil; try try // Start query execution res := RunThreadedQuery(sql, ForceDialog); result := res.MysqlDataset; // Inspect query result code and log / notify user on failure if res.Result in [MQR_CONNECT_FAIL,MQR_QUERY_FAIL] then begin raise Exception.Create(res.Comment); end; except on E: Exception do begin LogSQL( E.Message, True ); if DisplayErrors then MessageDlg( E.Message, mtError, [mbOK], 0 ); if not HandleErrors then raise THandledSQLError.Create(E.Message); Result := nil; end; end; finally FreeAndNil(res); end; end; {*** Executes a query. } function TMDIChild.GetResults( SQLQuery: WideString; HandleErrors: Boolean = false; DisplayErrors: Boolean = false; ForceDialog: Boolean = false): TDataSet; begin result := ExecSelectQuery(SQLQuery, HandleErrors, DisplayErrors, ForceDialog); end; {*** Execute a query and return String from column x } function TMDIChild.GetVar( SQLQuery: WideString; x: Integer = 0; HandleErrors: Boolean = false; DisplayErrors: Boolean = false) : String; var ds: TDataSet; begin ds := GetResults( SQLQuery, HandleErrors, DisplayErrors ); if ds = nil then exit; Result := ds.Fields[x].AsString; ds.Close; FreeAndNil(ds); end; function TMDIChild.GetNamedVar( SQLQuery: WideString; x: String; HandleErrors: Boolean = false; DisplayErrors: Boolean = false) : String; var ds: TDataSet; begin ds := GetResults( SQLQuery, HandleErrors, DisplayErrors ); if ds = nil then exit; Result := ds.Fields.FieldByName(x).AsString; ds.Close; FreeAndNil(ds); end; {*** This returns the dataset object that is currently visible to the user, depending on with tabsheet is active. @return TDataset if data/query tab is active, nil otherwise. } function TMDIChild.GetVisualDataset: TGridResult; begin case PageControlMain.ActivePageIndex of 3: Result := FDataGridResult; 4: Result := FQueryGridResult; end; end; {*** Execute a query and return column x as Stringlist @param String SQL query String @param Integer 0-based column index in the resultset to return @return TStringList } function TMDIChild.GetCol( SQLQuery: WideString; x: Integer = 0; HandleErrors: Boolean = false; DisplayErrors: Boolean = false ) : TStringList; var i: Integer; ds: TDataSet; begin ds := GetResults( SQLQuery, HandleErrors, DisplayErrors); Result := TStringList.create(); if ds = nil then exit; for i := 0 to ds.RecordCount - 1 do begin Result.Add( ds.Fields[x].AsString ); ds.Next; end; ds.Close; FreeAndNil(ds); end; {*** Event procedure handler for the ZSQLMonitor1 object } procedure TMDIChild.ZSQLMonitor1LogTrace(Sender: TObject; Event: TZLoggingEvent); begin LogSQL( Event.Message, (Event.Category <> lcExecute) ); end; procedure TMDIChild.RunAsyncPost(ds: TDeferDataSet); var res: TMysqlQuery; begin FQueryRunning := true; try try CheckConnection; except on E: Exception do begin raise Exception.Create('Failed to reconnect, giving up. (' + E.Message + ')'); end; end; FProgressForm := TFrmQueryProgress.Create(Self); debug('RunThreadedQuery(): Launching asynchronous query.'); res := ExecPostAsync(FConn,FProgressForm.Handle,ds); WaitForQueryCompletion(FProgressForm, res, false); if res.Result in [MQR_CONNECT_FAIL,MQR_QUERY_FAIL] then begin raise Exception.Create(res.Comment); end; finally FQueryRunning := false; end; end; {*** Run a query in a separate thread of execution on the current connection. } function TMDIChild.RunThreadedQuery(AQuery: WideString; ForceDialog: Boolean): TMysqlQuery; begin Result := nil; if (Copy(AQuery, 1, 3) <> 'USE') then EnsureDatabase; // Indicate a querythread is active (only one thread allow at this moment) FQueryRunning := true; try // Check if the connection of the current window is still alive // Otherwise reconnect try CheckConnection; except on E: Exception do begin // Ensure auto-updating processlist is disabled, see bug #1865305 DisableAutoRefreshClick(self); Screen.Cursor := crDefault; raise Exception.Create('Failed to reconnect, giving up. (' + E.Message + ')'); end; end; // Create instance of the progress form (but don't show it yet) FProgressForm := TFrmQueryProgress.Create(Self); { Launch a thread of execution that passes the query to the server The progressform serves as receiver of the status messages (WM_MYSQL_THREAD_NOTIFY) of the thread: * After the thread starts it notifies the progressform (MQE_INITED) (which calls ShowModal on itself) * Waits for a completion message from the thread (MQE_FINISHED) to remove itself * Set FQueryRunning to false } debug('RunThreadedQuery(): Launching asynchronous query.'); Result := ExecMysqlStatementAsync (AQuery,FConn,FProgressForm.Handle,RunAsyncPost); { Repeatedly check if the query has finished by inspecting FQueryRunning Allow repainting of user interface } WaitForQueryCompletion(FProgressForm, Result, ForceDialog); finally FQueryRunning := false; end; end; // Searchbox unfocused function TMDIChild.mask(str: WideString) : WideString; begin result := maskSql(mysql_version, str); end; procedure TMDIChild.CheckConnection; begin if not FMysqlConn.IsAlive then begin LogSQL('Connection failure detected. Trying to reconnect.', true); TimerConnected.Enabled := false; TimerConnectedTimer(self); TimerHostUptime.Enabled := false; TimerHostUptimeTimer(self); // 1) CheckConnection is always called from // within an FQueryRunning-enabled block. // 2) PerformConnect (see below) will make calls // that open an FQueryRunning block, causing an // error message. // // Therefore, flick the state of the running // flag before running PerformConnect(). FQueryRunning := false; try FMysqlConn.Connection.Reconnect; PerformConnect; finally FQueryRunning := true; end; end; end; function TMDIChild.GetActiveGrid: TVirtualStringTree; begin Result := nil; if PageControlMain.ActivePage = tabData then Result := DataGrid else if PageControlMain.ActivePage = tabQuery then Result := QueryGrid; end; function TMDIChild.GetActiveDatabase: string; var s: PVirtualNode; begin // Find currently selected database node in database tree, // or the parent if a table is currently selected. s := DBtree.GetFirstSelected; if not Assigned(s) then Result := '' else case DBtree.GetNodeLevel(s) of 2: Result := Databases[s.Parent.Index]; 1: Result := Databases[s.Index]; else Result := ''; end; end; function TMDIChild.GetSelectedTable: string; begin if DBtree.GetFirstSelected = nil then Result := '' else case DBtree.GetNodeLevel(DBtree.GetFirstSelected) of 2: Result := DBtree.Text[DBtree.GetFirstSelected, 0]; else Result := ''; end; end; function TMDIChild.GetNodeType(Node: PVirtualNode): Byte; var ds: TDataset; begin Result := NODETYPE_DEFAULT; if Assigned(Node) then case DBtree.GetNodeLevel(Node) of 1: Result := NODETYPE_DB; 2: begin ds := FetchDbTableList(DBTree.Text[Node.Parent, 0]); ds.RecNo := Node.Index+1; Result := GetDBObjectType(ds.Fields); end; end; end; function TMDIChild.GetSelectedNodeType: Byte; begin Result := GetNodeType(DBtree.GetFirstSelected); end; procedure TMDIChild.SetSelectedTable(table: string); var i: integer; dbnode, tnode, snode: PVirtualNode; begin // Detect db node case DBtree.GetNodeLevel( DBtree.GetFirstSelected ) of 1: dbnode := DBtree.GetFirstSelected; 2: dbnode := DBtree.GetFirstSelected.Parent; else raise Exception.Create('No selection in tree, could not determine active db.'); end; snode := nil; // 1st search, case sensitive for lower-case-tablenames=0 servers tnode := DBtree.GetFirstChild(dbnode); for i := 0 to dbnode.ChildCount - 1 do begin // Select table node if it has the wanted caption if DBtree.Text[tnode, 0] = table then begin snode := tnode; break; end; tnode := DBtree.GetNext(tnode); end; // 2nd search, case insensitive now if not Assigned(snode) then begin tnode := DBtree.GetFirstChild(dbnode); for i := 0 to dbnode.ChildCount - 1 do begin // Select table node if it has the wanted caption if AnsiCompareText(DBtree.Text[tnode, 0], table) = 0 then begin snode := tnode; break; end; tnode := DBtree.GetNext(tnode); end; end; if Assigned(snode) then begin // Ensure table node will be visible DBtree.Expanded[dbnode] := True; DBtree.Selected[snode] := True; exit; end; raise Exception.Create('Table node ' + table + ' not found in tree.'); end; procedure TMDIChild.SetSelectedDatabase(db: string); var n: PVirtualNode; begin n := FindDBNode(db); if Assigned(n) then DBtree.Selected[n] := true else raise Exception.Create('Database node ' + db + ' not found in tree.'); end; {*** Detect average row size and limit the number of rows fetched at once if more than ~ 5 MB of data } procedure TMDIChild.GetCalculatedLimit(Table: String; out Limit, AllRows: Int64); var AvgRowSize : Int64; ds: TDataSet; const // how much overhead this application has per row ROW_SIZE_OVERHEAD : Integer = 1150; // average row size guess for mysql server < 5.0 ROW_SIZE_GUESS: Integer = 2048; begin Limit := -1; try ds := GetResults('SHOW TABLE STATUS LIKE ' + esc(Table)); if ds = nil then exit; if ds.FieldByName('Avg_row_length').IsNull or ds.FieldByName('Rows').IsNull then begin // Guessing row size and count for views, fixes bug #346 AvgRowSize := ROW_SIZE_GUESS + ROW_SIZE_OVERHEAD; AllRows := MaxInt; end else begin AvgRowSize := MakeInt( ds.FieldByName( 'Avg_row_length' ).AsString ) + ROW_SIZE_OVERHEAD; AllRows := MakeInt( ds.FieldByName( 'Rows' ).AsString ); end; if AvgRowSize * AllRows > prefLoadSize then begin Limit := Trunc( prefLoadSize / AvgRowSize ); if Limit >= AllRows then Limit := -1; end; ds.Close; FreeAndNil(ds); finally debug( 'GetCalculatedLimit: ' + formatnumber(Limit) ); end; end; {** Column selection for datagrid } procedure TMDIChild.btnDataClick(Sender: TObject); var btn : TToolButton; frm : TForm; begin btn := (Sender as TToolButton); if (btn = tbtnDataColumns) or (btn = tbtnDataSorting) then begin // Create desired form for SELECT and ORDER buttons btn.Down := not btn.Down; if not btn.Down then Exit; if btn = tbtnDataColumns then frm := TColumnSelectionForm.Create(self) else if btn = tbtnDataSorting then frm := TDataSortingForm.Create(self) else frm := TForm.Create(self); // Dummy fallback, should never get created // Position new form relative to btn's position frm.Top := btn.ClientOrigin.Y + btn.Height; frm.Left := btn.ClientOrigin.X + btn.Width - frm.Width; // Display form frm.Show; end else if btn = tbtnDataFilter then begin // Unhide inline filter panel ToggleFilterPanel; FilterPanelManuallyOpened := pnlFilter.Visible; end; end; {** Tabset right to query-memo was clicked } procedure TMDIChild.tabsetQueryHelpersChange(Sender: TObject; NewTab: Integer; var AllowChange: Boolean); var i : Integer; SnippetsAccessible : Boolean; begin lboxQueryHelpers.Items.BeginUpdate; lboxQueryHelpers.Items.Clear; // By default sorted alpabetically lboxQueryHelpers.Sorted := True; // By default disable all items in popupmenu, enable them when needed menuInsertSnippetAtCursor.Enabled := False; menuLoadSnippet.Enabled := False; menuDeleteSnippet.Enabled := False; menuExplore.Enabled := False; menuHelp.Enabled := False; lboxQueryHelpers.MultiSelect := True; case NewTab of 0: // Cols begin // Keep native order of columns lboxQueryHelpers.Sorted := False; for i := 0 to High(VTRowDataListColumns) do begin lboxQueryHelpers.Items.Add(VTRowDataListColumns[i].Captions[0]); end; end; 1: // SQL functions begin // State of items in popupmenu menuHelp.Enabled := True; for i := 0 to Length(MySQLFunctions) - 1 do begin // Don't display unsupported functions here if MySqlFunctions[i].Version > mysql_version then continue; lboxQueryHelpers.Items.Add( MySQLFunctions[i].Name + MySQLFunctions[i].Declaration ); end; end; 2: // SQL keywords begin // State of items in popupmenu menuHelp.Enabled := True; lboxQueryHelpers.Items := MYSQL_KEYWORDS; end; 3: // SQL Snippets begin lboxQueryHelpers.MultiSelect := False; lboxQueryHelpers.Items := getFilesFromDir( DIRNAME_SNIPPETS, '*.sql', true ); // State of items in popupmenu SnippetsAccessible := lboxQueryHelpers.Items.Count > 0; menuDeleteSnippet.Enabled := SnippetsAccessible; menuInsertSnippetAtCursor.Enabled := SnippetsAccessible; menuLoadSnippet.Enabled := SnippetsAccessible; menuExplore.Enabled := True; end; end; // Restore last selected item in tab if (Length(QueryHelpersSelectedItems[NewTab]) > 0) and (Length(QueryHelpersSelectedItems[NewTab]) <= lboxQueryHelpers.Count) then begin for i := 0 to Length(QueryHelpersSelectedItems[NewTab]) - 1 do begin lboxQueryHelpers.Selected[QueryHelpersSelectedItems[NewTab][i]] := True; end; end; lboxQueryHelpers.Items.EndUpdate; end; {** Insert string from listbox with query helpers into SQL memo at doubleclick } procedure TMDIChild.lboxQueryHelpersDblClick(Sender: TObject); var text: String; i: Integer; begin for i := 0 to lboxQueryHelpers.Items.Count - 1 do begin if lboxQueryHelpers.Selected[i] then text := text + lboxQueryHelpers.Items[i] + ', '; end; Delete(text, Length(text)-1, 2); case tabsetQueryHelpers.TabIndex of 3: // Load snippet file ínto query-memo QueryLoad( DIRNAME_SNIPPETS + lboxQueryHelpers.Items[lboxQueryHelpers.ItemIndex] + '.sql', False ); else // For all other tabs just insert the item from the list SynMemoQuery.SelText := text; end; SynMemoQuery.SetFocus; end; {** Remember last used items in query helper tabs } procedure TMDIChild.lboxQueryHelpersClick(Sender: TObject); var i, s, idx: Integer; begin s := tabsetQueryHelpers.TabIndex; SetLength(QueryHelpersSelectedItems[s], 0); for i := 0 to lboxQueryHelpers.Count - 1 do if lboxQueryHelpers.Selected[i] then begin idx := Length(QueryHelpersSelectedItems[s]); SetLength(QueryHelpersSelectedItems[s], idx+1); QueryHelpersSelectedItems[s][idx] := i; end; end; {** Insert function name from popupmenu to query memo } procedure TMDIChild.insertFunction(Sender: TObject); var f : String; sm : TSynMemo; begin // Detect which memo is focused if SynMemoFilter.Focused then sm := SynMemoFilter else sm := SynMemoQuery; // Restore function name from array f := MySQLFunctions[TControl(Sender).tag].Name + MySQLFunctions[TControl(Sender).tag].Declaration; sm.UndoList.AddGroupBreak; sm.SelText := f; sm.UndoList.AddGroupBreak; if not SynMemoFilter.Focused then ValidateQueryControls; end; {** Activate inline-item-editor of listColumns } procedure TMDIChild.menuRenameColumnClick(Sender: TObject); begin ListColumns.EditNode(ListColumns.FocusedNode, 0); end; {** Rename a column name from within listColumns } procedure TMDIChild.ListColumnsNewText(Sender: TBaseVirtualTree; Node: PVirtualNode; Column: TColumnIndex; NewText: WideString); var def : TDataSet; sql_update, sql_null, sql_default, sql_extra, DefaultValue : String; NodeData : PVTreeData; begin // Try to rename, on any error abort and don't rename ListItem try ensureValidIdentifier( NewText ); // Fetch data from listitem NodeData := ListColumns.GetNodeData(Node); // Fetch column definition def := GetResults( 'SHOW COLUMNS FROM ' + mask(SelectedTable) + ' LIKE ' + esc(NodeData.Captions[0]), False, False ); // Check NOT NULL sql_null := 'NULL '; if UpperCase(def.FieldByName('Null').AsString) = 'NO' then sql_null := 'NOT NULL '; // Check default value, take care of non-literals / functions sql_default := ''; DefaultValue := def.FieldByName('Default').AsString; if DefaultValue <> '' then begin if (UpperCase(def.FieldByName('Type').AsString) <> 'TIMESTAMP') and (DefaultValue <> 'CURRENT_TIMESTAMP') then DefaultValue := esc(DefaultValue); sql_default := 'DEFAULT ' + DefaultValue + ' '; end; // Check extra options (auto_increment) sql_extra := ''; if def.FieldByName('Extra').AsString <> '' then sql_default := ' '+UpperCase(def.FieldByName('Extra').AsString) + ' '; // Concat column definition sql_update := 'ALTER TABLE ' + mask(SelectedTable) + ' CHANGE ' + mask(NodeData.Captions[0]) + ' ' + mask(NewText) + ' ' + def.FieldByName('Type').AsString + ' ' + sql_null + sql_default + sql_extra; // Cleanup def.Close; FreeAndNil(def); // Fire ALTER query ExecUpdateQuery( sql_update, False, False ); // Update listitem NodeData.Captions[0] := NewText; except On E : Exception do begin MessageDlg( E.Message, mtError, [mbOK], 0 ); end; end; end; {** Delete a snippet file } procedure TMDIChild.menuDeleteSnippetClick(Sender: TObject); var snippetfile : String; mayChange : Boolean; begin // Don't do anything if no item was selected if lboxQueryHelpers.ItemIndex = -1 then abort; snippetfile := DIRNAME_SNIPPETS + lboxQueryHelpers.Items[ lboxQueryHelpers.ItemIndex ] + '.sql'; if MessageDlg( 'Delete snippet file? ' + CRLF + snippetfile, mtConfirmation, [mbOk, mbCancel], 0) = mrOk then begin Screen.Cursor := crHourGlass; if DeleteFile( snippetfile ) then begin // Refresh list with snippets mayChange := True; // Unused; satisfies callee parameter collection which is probably dictated by tabset. tabsetQueryHelpersChange( Sender, tabsetQueryHelpers.TabIndex, mayChange ); Mainform.FillPopupQueryLoad; end else begin Screen.Cursor := crDefault; MessageDlg( 'Failed deleting ' + snippetfile, mtError, [mbOK], 0 ); end; Screen.Cursor := crDefault; end; end; {** Load snippet at cursor } procedure TMDIChild.menuInsertSnippetAtCursorClick(Sender: TObject); begin QueryLoad( DIRNAME_SNIPPETS + lboxQueryHelpers.Items[lboxQueryHelpers.ItemIndex] + '.sql', False ); end; {** Load snippet and replace content } procedure TMDIChild.menuLoadSnippetClick(Sender: TObject); begin QueryLoad( DIRNAME_SNIPPETS + lboxQueryHelpers.Items[lboxQueryHelpers.ItemIndex] + '.sql', True ); end; {** Open snippets-directory in Explorer } procedure TMDIChild.menuExploreClick(Sender: TObject); begin // Normally the snippets folder is created at installation. But it sure // can be the case that it has been deleted or that the application was // not installed properly. Ask if we should create the folder now. if DirectoryExists( DIRNAME_SNIPPETS ) then ShellExec( '', DIRNAME_SNIPPETS ) else if MessageDlg( 'Snippets folder does not exist: ' + DIRNAME_SNIPPETS + CRLF + CRLF + 'This folder is normally created when you install '+appname+'.' + CRLF + CRLF + 'Shall it be created now?', mtWarning, [mbYes, mbNo], 0 ) = mrYes then try Screen.Cursor := crHourglass; ForceDirectories( DIRNAME_SNIPPETS ); finally Screen.Cursor := crDefault; end; end; {** Tell a VirtualStringTree the mem size to allocate per node } procedure TMDIChild.vstGetNodeDataSize(Sender: TBaseVirtualTree; var NodeDataSize: Integer); begin NodeDataSize := SizeOf(TVTreeData); end; {** Various lists initialize their nodes by calling the following procedure once per node } procedure TMDIChild.vstInitNode(Sender: TBaseVirtualTree; ParentNode, Node: PVirtualNode; var InitialStates: TVirtualNodeInitStates); var NodeData : PVTreeData; a : TVTreeDataArray; begin // Get the pointer to the node data NodeData := Sender.GetNodeData(Node); // Fetch data array a := GetVTreeDataArray( Sender )^; // Bind data to node NodeData.Captions := a[Node.Index].Captions; NodeData.ImageIndex := a[Node.Index].ImageIndex; NodeData.NodeType := a[Node.Index].NodeType; end; {** Free data of a node } procedure TMDIChild.vstFreeNode(Sender: TBaseVirtualTree; Node: PVirtualNode); var b : PVTreeDataArray; begin // Detect which global array should be processed b := GetVTreeDataArray( Sender ); // TODO: If you optimize 'b' out of the code, the compiler will // sometimes generate code that causes a new array here instead of // a reference to the global array, thus breaking SetLength. Find // out why... //TestVTreeDataArray(b); if (Low(b^) < 0) or (High(b^) < 0) then raise Exception.Create('Internal error: unsupported array bounds.'); if Node.Index + 1 < Cardinal(High(b^)) then begin // Delete node somewhere in the middle of the array // Taken from http://delphi.about.com/cs/adptips2004/a/bltip0204_2.htm System.Move( b^[Node.Index + 1], b^[Node.Index], (Cardinal(Length(b^)) - (Node.Index - Cardinal(Low(b^))) - 1) * SizeOf(TVTreeData) ); end; SetLength(b^, Length(b^) - 1); end; {** A node in a VirtualStringTree gets visible and asks which text it shall display } procedure TMDIChild.vstGetText(Sender: TBaseVirtualTree; Node: PVirtualNode; Column: TColumnIndex; TextType: TVSTTextType; var CellText: WideString); var NodeData : PVTreeData; i : Integer; begin // Get pointer to node which gets displayed NodeData := Sender.GetNodeData(Node); // Column is -1 if no column headers are defined if Column = -1 then i := 0 else i := Column; // Avoid AV, don't exceed Captions content if NodeData.Captions.Count > i then CellText := NodeData.Captions[i] else CellText := ''; end; {** A node in a VirtualStringTree gets visible and asks which icon it shall display } procedure TMDIChild.vstGetImageIndex(Sender: TBaseVirtualTree; Node: PVirtualNode; Kind: TVTImageKind; Column: TColumnIndex; var Ghosted: Boolean; var ImageIndex: Integer); var NodeData : PVTreeData; begin // Display icon only for leftmost cell (0) or for tree nodes (-1) if Column > 0 then exit; // Get pointer to node which gets displayed NodeData := Sender.GetNodeData(Node); ImageIndex := NodeData.ImageIndex; end; {** A column header of a VirtualStringTree was clicked: Toggle the sort direction } procedure TMDIChild.vstHeaderClick(Sender: TVTHeader; Column: TColumnIndex; Button: TMouseButton; Shift: TShiftState; X, Y: Integer); begin // Don't call sorting procedure on right click // Some list-headers have a contextmenu which should popup then. if Button = mbRight then Exit; if Sender.SortColumn <> Column then Sender.SortColumn := Column else if Sender.SortDirection = sdAscending then Sender.SortDirection := sdDescending else Sender.SortDirection := sdAscending; Sender.Treeview.SortTree( Column, Sender.SortDirection ); end; {** Sorting a column of a VirtualTree by comparing two cells } procedure TMDIChild.vstCompareNodes(Sender: TBaseVirtualTree; Node1, Node2: PVirtualNode; Column: TColumnIndex; var Result: Integer); var NodeData1, NodeData2 : PVTreeData; CellText1, CellText2 : String; Number1, Number2 : Extended; begin NodeData1 := Sender.GetNodeData(Node1); NodeData2 := Sender.GetNodeData(Node2); // If captions-item from either nodes is not set, assume empty string if NodeData1.Captions.Count >= Column then CellText1 := NodeData1.Captions[Column] else CellText1 := ''; if NodeData2.Captions.Count >= Column then CellText2 := NodeData2.Captions[Column] else CellText2 := ''; // Map value "0" to "N/A" strings if CellText1 = '' then CellText1 := '0'; if CellText2 = '' then CellText2 := '0'; // Apply different comparisons for numbers and text if StrToIntDef( copy(CellText1,0,1), -1 ) <> -1 then begin // Assuming numeric values Number1 := MakeFloat( CellText1 ); Number2 := MakeFloat( CellText2 ); if Number1 > Number2 then Result := 1 else if Number1 = Number2 then Result := 0 else if Number1 < Number2 then Result := -1; end else begin // Compare Strings Result := AnsiCompareText( CellText1, CellText2 ); end; end; {** VirtualTree gets painted. Adjust background color of sorted column. } procedure TMDIChild.vstBeforePaint(Sender: TBaseVirtualTree; TargetCanvas: TCanvas); var i : Integer; h : TVTHeader; begin h := TVirtualStringTree(Sender).Header; for i := 0 to h.Columns.Count - 1 do begin if h.SortColumn = i then case h.SortDirection of sdAscending: h.Columns[i].Color := COLOR_SORTCOLUMN_ASC; sdDescending: h.Columns[i].Color := COLOR_SORTCOLUMN_DESC; end else h.Columns[i].Color := clWindow; end; end; {** Return the data array which belongs to a VirtualTree component } function TMDIChild.GetVTreeDataArray( VT: TBaseVirtualTree ): PVTreeDataArray; begin if VT = ListVariables then Result := @VTRowDataListVariables else if VT = ListStatus then Result := @VTRowDataListStatus else if VT = ListCommandStats then Result := @VTRowDataListCommandStats else if VT = ListProcesses then Result := @VTRowDataListProcesses else if VT = ListTables then Result := @VTRowDataListTables else if VT = ListColumns then Result := @VTRowDataListColumns else begin raise Exception.Create( VT.ClassName + ' "' + VT.Name + '" doesn''t have an assigned array with data.' ); end; end; {** Internal: Test quality of code/compiler. } procedure TMDIChild.TestVTreeDataArray( P: PVTreeDataArray ); begin if P = @VTRowDataListVariables then Exit; if P = @VTRowDataListStatus then Exit; if P = @VTRowDataListCommandStats then Exit; if P = @VTRowDataListProcesses then Exit; if P = @VTRowDataListTables then Exit; if P = @VTRowDataListColumns then Exit; raise Exception.Create('Assertion failed: Invalid global VT array.'); end; {** Click on popupDBGridHeader } procedure TMDIChild.MenuTablelistColumnsClick(Sender: TObject); var menuitem : TMenuItem; VisibleColumns : TStringList; i : Integer; begin VisibleColumns := TStringList.Create; menuitem := TMenuItem( Sender ); menuitem.Checked := not menuitem.Checked; for i := 0 to ListTables.Header.Columns.Count - 1 do begin menuitem := popupDbGridHeader.Items[i]; if menuitem.Checked then VisibleColumns.Add(IntToStr(i)); end; SetVisibleListColumns( ListTables, VisibleColumns ); end; {** Save setup of a VirtualStringTree to registry } procedure TMDIChild.SaveListSetup( List: TVirtualStringTree ); var i : Byte; ColWidths, ColsVisible, ColPos : String; reg : TRegistry; begin reg := TRegistry.Create; reg.OpenKey( REGPATH, true ); ColWidths := ''; ColsVisible := ''; ColPos := ''; for i := 0 to List.Header.Columns.Count - 1 do begin // Column widths if ColWidths <> '' then ColWidths := ColWidths + ','; ColWidths := ColWidths + IntToStr(List.Header.Columns[i].Width); // Column visibility if coVisible in List.Header.Columns[i].Options then begin if ColsVisible <> '' then ColsVisible := ColsVisible + ','; ColsVisible := ColsVisible + IntToStr(i); end; // Column position if ColPos <> '' then ColPos := ColPos + ','; ColPos := ColPos + IntToStr(List.Header.Columns[i].Position); end; reg.WriteString( REGPREFIX_COLWIDTHS + List.Name, ColWidths ); reg.WriteString( REGPREFIX_COLSVISIBLE + List.Name, ColsVisible ); reg.WriteString( REGPREFIX_COLPOS + List.Name, ColPos ); FreeAndNil(reg); end; {** Restore setup of VirtualStringTree from registry } procedure TMDIChild.RestoreListSetup( List: TVirtualStringTree ); var i : Byte; colwidth, colpos : Integer; Value : String; ValueList : TStringList; begin ValueList := TStringList.Create; // Column widths Value := Mainform.GetRegValue(REGPREFIX_COLWIDTHS + List.Name, ''); if Value <> '' then begin ValueList := Explode( ',', Value ); for i := 0 to ValueList.Count - 1 do begin colwidth := MakeInt(ValueList[i]); // Check if column number exists and width is at least 1 pixel if (List.Header.Columns.Count > i) and (colwidth > 0) then List.Header.Columns[i].Width := colwidth; end; end; // Column visibility Value := Mainform.GetRegValue(REGPREFIX_COLSVISIBLE + List.Name, ''); if Value <> '' then begin ValueList := Explode( ',', Value ); SetVisibleListColumns( List, ValueList ); end; // Column position Value := Mainform.GetRegValue(REGPREFIX_COLPOS + List.Name, ''); if Value <> '' then begin ValueList := Explode( ',', Value ); for i := 0 to ValueList.Count - 1 do begin colpos := MakeInt(ValueList[i]); // Check if column number exists if List.Header.Columns.Count > i then List.Header.Columns[i].Position := colpos; end; end; ValueList.Free; end; {** (Un)hide columns in a VirtualStringTree. } procedure TMDIChild.SetVisibleListColumns( List: TVirtualStringTree; Columns: TStringList ); var i : Integer; begin for i := 0 to List.Header.Columns.Count - 1 do begin // Only ListTables' column visibility is currently customizable // so, make sure to unhide the newer "Comment" column in ListColumns for some users if (Columns.IndexOf( IntToStr(i) ) > -1) or (List <> ListTables) then List.Header.Columns[i].Options := List.Header.Columns[i].Options + [coVisible] else List.Header.Columns[i].Options := List.Header.Columns[i].Options - [coVisible]; end; end; {** Start writing logfile. Called either in FormShow or after closing preferences dialog } procedure TMDIChild.ActivateFileLogging; var LogfilePattern : String; i : Integer; begin // Ensure directory exists ForceDirectories( DirnameSessionLogs ); // Determine free filename if it's emtpy yet if FileNameSessionLog = '' then begin LogfilePattern := '%s %.6u.log'; i := 1; FileNameSessionLog := DirnameSessionLogs + goodfilename(Format(LogfilePattern, [FConn.Description, i])); while FileExists( FileNameSessionLog ) do begin inc(i); FileNameSessionLog := DirnameSessionLogs + goodfilename(Format(LogfilePattern, [FConn.Description, i])); end; end; // Be sure file is closed before we (re-)open it DeactivateFileLogging; // Create file handle for writing AssignFile( FileHandleSessionLog, FileNameSessionLog ); {$I-} // Supress errors if FileExists(FileNameSessionLog) then Append(FileHandleSessionLog) else Rewrite(FileHandleSessionLog); {$I+} if IOResult <> 0 then begin MessageDlg('Error opening session log file:'+CRLF+FileNameSessionLog+CRLF+CRLF+'Logging is disabled now.', mtError, [mbOK], 0); prefLogToFile := False; end else prefLogToFile := True; // Update popupMenu items menuLogToFile.Checked := prefLogToFile; menuOpenLogFolder.Enabled := prefLogToFile; end; {** Close logfile. Called in FormClose, in ActivateFileLogging and on closing preferences dialog } procedure TMDIChild.DeactivateFileLogging; begin prefLogToFile := False; {$I-} // Supress errors CloseFile(FileHandleSessionLog); {$I+} // Reset IOResult so later checks in ActivateFileLogging doesn't get an old value IOResult; // Update popupMenu items menuLogToFile.Checked := prefLogToFile; menuOpenLogFolder.Enabled := prefLogToFile; end; {** Display tooltips in VirtualTrees. Imitates default behaviour of TListView. } procedure TMDIChild.vstGetHint(Sender: TBaseVirtualTree; Node: PVirtualNode; Column: TColumnIndex; var LineBreakStyle: TVTTooltipLineBreakStyle; var HintText: WideString); var r : TRect; DisplayedWidth, NeededWidth : Integer; Tree: TVirtualStringTree; begin Tree := TVirtualStringTree(Sender); HintText := Tree.Text[Node, Column]; // Check if the list has shortened the text r := Tree.GetDisplayRect(Node, Column, True); DisplayedWidth := r.Right-r.Left; NeededWidth := Canvas.TextWidth(HintText) + Tree.TextMargin*2; //debug(format('need: %d, given: %d, font: %s %d', [NeededWidth, DisplayedWidth, canvas.Font.Name, canvas.Font.Size])); // Disable displaying hint if text is displayed completely in list if NeededWidth <= DisplayedWidth then HintText := ''; end; {** Enable/disable file logging by popupmenuclick } procedure TMDIChild.menuLogToFileClick(Sender: TObject); var reg : TRegistry; OldprefLogToFile: Boolean; begin OldprefLogToFile := prefLogToFile; if not prefLogToFile then ActivateFileLogging else DeactivateFileLogging; // Save option if prefLogToFile <> OldprefLogToFile then begin reg := TRegistry.Create; reg.OpenKey(REGPATH, true); reg.WriteBool('LogToFile', prefLogToFile); reg.Free; end; end; {** Open folder with session logs } procedure TMDIChild.menuOpenLogFolderClick(Sender: TObject); begin ShellExec( '', DirnameSessionLogs ); end; {** A header column of a VirtualTree was "dragged out", which means: dragged down or up, not to the left or right. We imitate the behaviour of various applications (fx Outlook) and hide this dragged column } procedure TMDIChild.vstHeaderDraggedOut(Sender: TVTHeader; Column: TColumnIndex; DropPosition: TPoint); begin if Sender.Treeview = ListTables then begin // Keep "Tables" column if Column = 0 then Exit; // Uncheck menuitem in header's contextmenu popupDBGridHeader.Items[Column].Checked := False; end; // Hide the draggedout column Sender.Columns[Column].Options := Sender.Columns[Column].Options - [coVisible]; end; {** A cell in ListCommandStats gets painted. Draw a progress bar on it to visualize its percentage value. } procedure TMDIChild.ListCommandStatsBeforeCellPaint(Sender: TBaseVirtualTree; TargetCanvas: TCanvas; Node: PVirtualNode; Column: TColumnIndex; CellRect: TRect); var percent : Extended; barwidth, cellwidth: Integer; NodeData: PVTreeData; begin // Only paint bar in percentage column if Column <> 4 then Exit; // Add minimal margin to cell edges InflateRect(CellRect, -1, -1); cellwidth := CellRect.Right - CellRect.Left; // Calculate value to display NodeData := Sender.GetNodeData(Node); percent := MakeFloat(NodeData.Captions[Column]); barwidth := Round(cellwidth / 100 * percent); // Adjust width of rect and paint the bar CellRect.Right := CellRect.Right - cellwidth + barwidth; TargetCanvas.Pen.Color := clGray; TargetCanvas.Brush.Color := clInfoBk; TargetCanvas.Rectangle(CellRect); end; function TMDIChild.HandleOrderColumns( AddOrderCol: TOrderCol = nil ): TOrderColArray; var i, j : Integer; reg : TRegistry; reg_name : String; old_orderclause, new_orderclause, columnname : String; order_parts, ValidColumns : TStringList; columnexists : Boolean; begin SetLength( Result, 0 ); // Read ORDER clause from registry reg_name := REGPREFIX_ORDERCLAUSE + ActiveDatabase + '.' + SelectedTable; old_orderclause := Mainform.GetRegValue(reg_name, '', FConn.Description); if old_orderclause <> '' then begin // Parse ORDER clause order_parts := explode( ',', old_orderclause ); ValidColumns := GetVTCaptions( ListColumns ); for i := 0 to order_parts.Count - 1 do begin columnname := Trim( Copy( order_parts[i], 0, LastPos( ' ', order_parts[i] ) ) ); columnname := trimc( columnname, '`' ); columnexists := ValidColumns.IndexOf(columnname) > -1; if not columnexists then begin LogSQL( 'Notice: A stored ORDER-BY clause could not be applied, '+ 'because the column "' + columnname + '" does not exist!'); Continue; end; // Add part of order clause to result array SetLength(Result, Length(Result)+1); Result[Length(Result)-1] := TOrderCol.Create; Result[Length(Result)-1].ColumnName := columnname; Result[Length(Result)-1].SortDirection := Integer( Copy( order_parts[i], ( Length( order_parts[i] ) - 3 ), 4 ) = 'DESC' ); end; end; // Add a new order column after a columns title has been clicked if AddOrderCol <> nil then begin // Check if order column is already existant columnexists := False; for i := Low(Result) to High(Result) do begin if Result[i].ColumnName = AddOrderCol.ColumnName then begin // AddOrderCol is already in the list. Switch its direction: // ASC > DESC > [delete col] columnexists := True; if Result[i].SortDirection = ORDER_ASC then Result[i].SortDirection := ORDER_DESC else begin // Delete order col for j := i to High(Result) - 1 do Result[j] := Result[j+1]; SetLength(Result, Length(Result)-1); end; // We found the matching column, no need to loop further break; end; end; if not columnexists then begin SetLength(Result, Length(Result)+1); Result[Length(Result)-1] := AddOrderCol; end; end; // Update registry new_orderclause := ComposeOrderClause(Result); if new_orderclause <> old_orderclause then begin reg := TRegistry.Create(); reg.OpenKey( REGPATH + REGKEY_SESSIONS + FConn.Description, true ); if new_orderclause <> '' then reg.WriteString(reg_name , new_orderclause) else reg.DeleteValue(reg_name); reg.Free; end; end; {** Concat all sort options to a ORDER clause } function TMDIChild.ComposeOrderClause(Cols: TOrderColArray): String; var i : Integer; sort : String; begin result := ''; for i := 0 to Length(Cols) - 1 do begin if result <> '' then result := result + ', '; if Cols[i].SortDirection = ORDER_ASC then sort := TXT_ASC else sort := TXT_DESC; result := result + Mainform.Mask( Cols[i].ColumnName ) + ' ' + sort; end; end; {** Fetch table engines from server Currently used in tbl_properties and createtable } procedure TMDIChild.TableEnginesCombo(var Combobox: TCombobox); var engineName, defaultEngine, engineSupport : String; HaveEngineList : TStrings; begin Combobox.Items.BeginUpdate; Combobox.Items.Clear; // Cache datasets if (dsShowEngines = nil) and (dsHaveEngines = nil) then begin dsShowEngines := Mainform.Childwin.GetResults('SHOW ENGINES', True); if dsShowEngines = nil then dsHaveEngines := Mainform.Childwin.GetResults('SHOW VARIABLES LIKE ''have%'''); end; if dsShowEngines <> nil then begin dsShowEngines.First; while not dsShowEngines.Eof do begin engineName := dsShowEngines.FieldByName('Engine').AsString; engineSupport := LowerCase(dsShowEngines.FieldByName('Support').AsString); // Add to dropdown if supported if engineSupport <> 'no' then Combobox.Items.Add(engineName); // Check if this is the default engine if engineSupport = 'default' then defaultEngine := engineName; dsShowEngines.Next; end; end else begin // Manually fetch available engine types by analysing have_* options // This is for servers below 4.1 or when the SHOW ENGINES statement has // failed for some other reason // Add default engines which will not show in a have_* variable: Combobox.Items.CommaText := 'MyISAM,MRG_MyISAM,HEAP'; defaultEngine := 'MyISAM'; // Possible other engines: HaveEngineList := TStringList.Create; HaveEngineList.CommaText := 'ARCHIVE,BDB,BLACKHOLE,CSV,EXAMPLE,FEDERATED,INNODB,ISAM'; dsHaveEngines.First; while not dsHaveEngines.Eof do begin engineName := copy(dsHaveEngines.Fields[0].AsString, 6, Length(dsHaveEngines.Fields[0].AsString) ); // Strip additional "_engine" suffix, fx from "have_blackhole_engine" if Pos('_', engineName) > 0 then engineName := copy(engineName, 0, Pos('_', engineName)-1); engineName := UpperCase(engineName); // Add engine to dropdown if it's a) in HaveEngineList and b) activated if (HaveEngineList.IndexOf(engineName) > -1) and (LowerCase(dsHaveEngines.Fields[1].AsString) = 'yes') then Combobox.Items.Add(engineName); dsHaveEngines.Next; end; end; Combobox.Sorted := True; // Select default Combobox.ItemIndex := Combobox.Items.IndexOf(defaultEngine); Combobox.Items.EndUpdate; end; {** A row in the process list was selected. Fill SynMemoProcessView with the SQL of that row. } procedure TMDIChild.ListProcessesChange(Sender: TBaseVirtualTree; Node: PVirtualNode); var NodeData : PVTreeData; enableSQLView : Boolean; begin enableSQLView := Assigned(Node); SynMemoProcessView.Enabled := enableSQLView; pnlProcessView.Enabled := enableSQLView; if enableSQLView then begin NodeData := ListProcesses.GetNodeData(Node); SynMemoProcessView.Text := NodeData.Captions[7]; end else SynMemoProcessView.Clear; end; {*** Apply a filter to a Virtual Tree. Currently used for ListVariables, ListStatus and ListProcesses } procedure TMDIChild.editFilterVTChange(Sender: TObject); var Node : PVirtualNode; NodeData : PVTreeData; VT : TVirtualStringTree; Edit : TEdit; i : Integer; match : Boolean; search : String; somefiltered : Boolean; begin // Find the correct VirtualTree that shall be filtered if Sender = editFilterVariables then VT := ListVariables else if Sender = editFilterStatus then VT := ListStatus else if Sender = editFilterProcesses then VT := ListProcesses else Raise Exception.Create('editFilterVTChange() called with wrong sender control ('+(Sender as TControl).Name+')' ); Edit := Sender as TEdit; // Loop through all nodes to adjust their vsVisible state Node := VT.GetFirst; search := LowerCase( Edit.Text ); somefiltered := False; while Assigned(Node) do begin NodeData := VT.GetNodeData(Node); // Don't filter anything if the filter text is empty match := search = ''; // Search for given text in node's captions if not match then for i := 0 to NodeData.Captions.Count - 1 do begin if Pos( search, LowerCase(NodeData.Captions[i]) ) > 0 then begin match := True; break; end; end; if match then Node.States := Node.States + [vsVisible] else Node.States := Node.States - [vsVisible]; if (not somefiltered) and (not match) then somefiltered := True; Node := VT.GetNext(Node); end; // Colorize TEdit with filter string to signalize that some nodes are hidden now if somefiltered then begin Edit.Font.Color := clRed; Edit.Color := clYellow; end else begin Edit.Font.Color := clWindowText; Edit.Color := clWindow; end; // Needs a refresh to apply visible states VT.Refresh; end; procedure TMDIChild.ListVariablesDblClick(Sender: TObject); begin menuEditVariable.Click; end; {** Edit a server variable } procedure TMDIChild.menuEditVariableClick(Sender: TObject); var NodeData: PVTreeData; begin if EditVariableForm = nil then EditVariableForm := TfrmEditVariable.Create(Self); NodeData := ListVariables.GetNodeData(ListVariables.FocusedNode); EditVariableForm.VarName := NodeData.Captions[0]; EditVariableForm.VarValue := NodeData.Captions[1]; // Refresh relevant list node if EditVariableForm.ShowModal = mrOK then NodeData.Captions[1] := GetVar('SHOW VARIABLES LIKE '+esc(NodeData.Captions[0]), 1); end; {** Apply icons to tabs of query helpers box } procedure TMDIChild.tabsetQueryHelpersGetImageIndex(Sender: TObject; TabIndex: Integer; var ImageIndex: Integer); begin case TabIndex of 0: ImageIndex := 42; 1: ImageIndex := 13; 2: ImageIndex := 25; 3: ImageIndex := 35; end; end; {** The database tree doesn't use any structure for its nodes. } procedure TMDIChild.DBtreeGetNodeDataSize(Sender: TBaseVirtualTree; var NodeDataSize: Integer); begin NodeDataSize := 0; end; {** Set text of a treenode before it gets displayed or fetched in any way } procedure TMDIChild.DBtreeGetText(Sender: TBaseVirtualTree; Node: PVirtualNode; Column: TColumnIndex; TextType: TVSTTextType; var CellText: WideString); var ds: TDataset; db, eng: String; i: Integer; Bytes: Int64; AllListsCached: Boolean; begin case Column of 0: case Sender.GetNodeLevel(Node) of 0: CellText := FConn.MysqlParams.User + '@' + FConn.MysqlParams.Host; 1: CellText := Databases[Node.Index]; 2: begin ds := FetchDbTableList(Databases[Node.Parent.Index]); ds.RecNo := Node.Index+1; CellText := ds.Fields[0].AsString; end; end; 1: case GetNodeType(Node) of // Calculate and display the sum of all table sizes in ALL dbs if all table lists are cached NODETYPE_DEFAULT: begin AllListsCached := true; for i := 0 to Databases.Count - 1 do begin if not DbTableListCached(Databases[i]) then begin AllListsCached := false; break; end; end; // Will be also set to a negative value by GetTableSize and results of SHOW TABLES Bytes := -1; if AllListsCached then begin Bytes := 0; for i := 0 to Databases.Count - 1 do begin ds := FetchDbTableList(Databases[i]); while not ds.Eof do begin Bytes := Bytes + GetTableSize(ds); ds.Next; end; end; end; if Bytes >= 0 then CellText := FormatByteNumber(Bytes) else CellText := ''; end; // Calculate and display the sum of all table sizes in ONE db, if the list is already cached. NODETYPE_DB: begin db := DBtree.Text[Node, 0]; if not DbTableListCached(db) then CellText := '' else begin Bytes := 0; ds := FetchDbTableList(db); while not ds.Eof do begin if ds.FindField('Type') <> nil then eng := FieldContent(ds, 'Type') else eng := FieldContent(ds, 'Engine'); if UpperCase(eng) <> 'MRG_MYISAM' then Bytes := Bytes + GetTableSize(ds); ds.Next; end; if Bytes >= 0 then CellText := FormatByteNumber(Bytes) else CellText := ''; end; end; NODETYPE_TABLE: begin db := DBtree.Text[Node.Parent, 0]; ds := FetchDbTableList(db); ds.RecNo := Node.Index + 1; Bytes := GetTableSize(ds); CellText := FormatByteNumber(Bytes); end else CellText := ''; // Applies for views and crashed tables end; end; end; {** Set icon of a treenode before it gets displayed } procedure TMDIChild.DBtreeGetImageIndex(Sender: TBaseVirtualTree; Node: PVirtualNode; Kind: TVTImageKind; Column: TColumnIndex; var Ghosted: Boolean; var ImageIndex: Integer); var ds: TDataset; begin if Column > 0 then Exit; case Sender.GetNodeLevel(Node) of 0: ImageIndex := ICONINDEX_SERVER; 1: if (Kind = ikSelected) or ((Sender.GetFirstSelected<>nil) and (Node=Sender.GetFirstSelected.Parent)) then ImageIndex := ICONINDEX_DB_HIGHLIGHT else ImageIndex := ICONINDEX_DB; 2: begin ds := FetchDbTableList(Databases[Node.Parent.Index]); ds.RecNo := Node.Index+1; case GetDBObjectType(ds.Fields) of NODETYPE_TABLE: if Kind = ikSelected then ImageIndex := ICONINDEX_TABLE_HIGHLIGHT else ImageIndex := ICONINDEX_TABLE; NODETYPE_VIEW: if Kind = ikSelected then ImageIndex := ICONINDEX_VIEW_HIGHLIGHT else ImageIndex := ICONINDEX_VIEW; NODETYPE_CRASHED_TABLE: if Kind = ikSelected then ImageIndex := ICONINDEX_CRASHED_TABLE_HIGHLIGHT else ImageIndex := ICONINDEX_CRASHED_TABLE; end; end; end; end; {** Set childcount of an expanding treenode } procedure TMDIChild.DBtreeInitChildren(Sender: TBaseVirtualTree; Node: PVirtualNode; var ChildCount: Cardinal); var ds: TDataset; specialDbs: TStringList; dbName: String; i: Integer; begin case Sender.GetNodeLevel(Node) of // Root node has only one single child (user@host) 0: begin Screen.Cursor := crSQLWait; mainform.Showstatus( 'Reading Databases...' ); try Databases := TStringList.Create; if DatabasesWanted.Count = 0 then begin ds := GetResults( 'SHOW DATABASES' ); specialDbs := TStringList.Create; for i:=1 to ds.RecordCount do begin dbName := ds.FieldByName('Database').AsString; if dbName = DBNAME_INFORMATION_SCHEMA then specialDbs.Insert( 0, dbName ) else Databases.Add( dbName ); ds.Next; end; ds.Close; FreeAndNil(ds); Databases.Sort; // Prioritised position of system-databases for i := specialDbs.Count - 1 downto 0 do Databases.Insert( 0, specialDbs[i] ); end else Databases.AddStrings(DatabasesWanted); Mainform.showstatus( IntToStr( Databases.Count ) + ' Databases', 0 ); ChildCount := Databases.Count; // Avoids excessive InitializeKeywordLists() calls. SynSQLSyn1.TableNames.BeginUpdate; SynSQLSyn1.TableNames.Clear; // Let synedit know all database names so that they can be highlighted // TODO: Is this right? Adding ".
" seems to make more sense.. SynSQLSyn1.TableNames.AddStrings( Databases ); SynSQLSyn1.TableNames.EndUpdate; finally MainForm.ShowStatus( STATUS_MSG_READY ); Screen.Cursor := crDefault; end; end; // DB node expanding 1: begin Screen.Cursor := crSQLWait; mainform.Showstatus( 'Reading Tables...' ); try ds := FetchDbTableList(Databases[Node.Index]); ChildCount := ds.RecordCount; finally MainForm.ShowStatus( STATUS_MSG_READY ); Screen.Cursor := crDefault; end; end; else Exit; end; end; {** Set initial options of a treenode } procedure TMDIChild.DBtreeInitNode(Sender: TBaseVirtualTree; ParentNode, Node: PVirtualNode; var InitialStates: TVirtualNodeInitStates); var level: Cardinal; begin level := Sender.GetNodeLevel(Node); // Ensure plus sign is visible for root and dbs if level in [0,1] then Include( InitialStates, ivsHasChildren); // Host node is always expanded if level = 0 then Include( InitialStates, ivsExpanded ); end; {** Selection in database tree has changed } procedure TMDIChild.DBtreeChange(Sender: TBaseVirtualTree; Node: PVirtualNode); var newDb: string; begin if not Assigned(Node) then Exit; case Sender.GetNodeLevel(Node) of 0: ShowHost; 1: begin newDb := Databases[Node.Index]; ShowDatabase( newDb ); end; 2: begin newDb := Databases[Node.Parent.Index]; ShowTable( (Sender as TVirtualStringTree).Text[Node, 0] ); end; end; if newDb <> '' then LoadDatabaseProperties(newDb); end; procedure TMDIChild.DBtreeDblClick(Sender: TObject); var Node: PVirtualNode; begin // Paste DB or table name into query window on treeview double click. Node := DBtree.GetFirstSelected; if not Assigned(Node) then Exit; if DBtree.GetNodeLevel(Node) = 0 then Exit; if PageControlMain.ActivePage <> tabQuery then Exit; SynMemoQuery.SelText := DBtree.Text[Node, 0]; SynMemoQuery.SetFocus; end; procedure TMDIChild.DBtreePaintText(Sender: TBaseVirtualTree; const TargetCanvas: TCanvas; Node: PVirtualNode; Column: TColumnIndex; TextType: TVSTTextType); begin // Grey out rather unimportant "Size" column if Column <> 1 then Exit; case DBtree.GetNodeLevel(Node) of 0: TargetCanvas.Font.Color := clWindowText; 1: TargetCanvas.Font.Color := $008f8f8f; 2: TargetCanvas.Font.Color := $00cfcfcf; end; end; {** Refresh database tab } procedure TMDIChild.MenuRefreshClick(Sender: TObject); begin RefreshTreeDB(ActiveDatabase); LoadDatabaseProperties(ActiveDatabase); end; {** Refresh whole database tree } procedure TMDIChild.menuRefreshDBTreeClick(Sender: TObject); begin RefreshTree(True); end; {** Refresh the whole tree } procedure TMDIChild.RefreshTree(DoResetTableCache: Boolean; SelectDatabase: String = ''); var oldActiveDatabase, oldSelectedTable, db: String; Node: PVirtualNode; ExpandedDBs, TablesFetched: TStringList; i: Integer; begin // Remember currently active database and table oldActiveDatabase := ActiveDatabase; oldSelectedTable := SelectedTable; // Temporary unselect any node to postpone event handlings if (DBtree.GetFirstSelected <> nil) and (DBtree.GetNodeLevel(DBtree.GetFirstSelected) > 0) then DBtree.ClearSelection; // Remember expandation status of all dbs and whether their tables were fetched ExpandedDBs := TStringList.Create; TablesFetched := TStringList.Create; Node := DBtree.GetFirstChild(DBtree.GetFirst); for i := 0 to DBtree.GetFirst.ChildCount - 1 do begin db := DBtree.Text[Node, 0]; if DBtree.ChildrenInitialized[Node] then TablesFetched.Add(db); if vsExpanded in Node.States then ExpandedDBs.Add(db); Node := DBtree.GetNextSibling(Node); end; // ReInit tree population DBTree.BeginUpdate; DBtree.ReinitChildren(DBTree.GetFirst, False); // .ResetNode(DBtree.GetFirst); if DoResetTableCache then ClearAllTableLists; // Reselect active or new database if present. Could have been deleted or renamed. try if SelectDatabase <> '' then ActiveDatabase := SelectDatabase else if oldActiveDatabase <> '' then ActiveDatabase := oldActiveDatabase; except end; // Expand nodes which were previously expanded Node := DBtree.GetFirstChild(DBtree.GetFirst); for i := 0 to DBtree.GetFirst.ChildCount - 1 do begin db := DBtree.Text[Node, 0]; if TablesFetched.IndexOf(db) > -1 then DBtree.ReinitChildren(Node, False); DBtree.Expanded[Node] := ExpandedDBs.IndexOf(db) > -1; Node := DBtree.GetNextSibling(Node); end; ExpandedDBs.Free; TablesFetched.Free; if oldSelectedTable <> '' then SelectedTable := oldSelectedTable; DBTree.EndUpdate; end; {** Refresh one database node in the db tree } procedure TMDIChild.RefreshTreeDB(db: String); var oldActiveDatabase: String; dbnode: PVirtualNode; begin oldActiveDatabase := ActiveDatabase; DBtree.ClearSelection; DBNode := FindDBNode(db); RefreshDbTableList(db); DBTree.ReinitNode(dbnode, true); DBtree.InvalidateChildren(dbnode, false); ActiveDatabase := oldActiveDatabase; end; {** Find a database node in the tree by passing its name } function TMDIChild.FindDBNode(db: String): PVirtualNode; var i, s: Integer; n: PVirtualNode; begin Result := nil; // Ensure Databases list is instantiated (by DBtree.InitChildren) if Databases = nil then DBtree.ReinitNode(DBtree.GetFirst, False); // TStringList.CaseSensitive= True|False is only used in .IndexOf and .Sort procs, // it does not avoid or remove duplicate items Databases.CaseSensitive := True; s := Databases.IndexOf(db); if s = -1 then begin Databases.CaseSensitive := False; s := Databases.IndexOf(db); end; if s > -1 then begin n := DBtree.GetFirstChild(DBtree.GetFirst); for i := 0 to DBtree.GetFirst.ChildCount - 1 do begin if Integer(n.Index) = s then begin Result := n; Exit; end; n := DBtree.GetNextSibling(n); end; end; end; {** Expand all db nodes } procedure TMDIChild.menuTreeExpandAllClick(Sender: TObject); begin DBtree.FullExpand; DBtree.ScrollIntoView(DBtree.GetFirstSelected, False); end; {** Collapse all db nodes } procedure TMDIChild.menuTreeCollapseAllClick(Sender: TObject); var n: PVirtualNode; i: Integer; begin n := DBtree.GetFirstChild(DBtree.GetFirst); for i := 0 to DBtree.GetFirst.ChildCount - 1 do begin DBtree.FullCollapse(n); n := DBtree.GetNextSibling(n); end; DBtree.ScrollIntoView(DBtree.GetFirstSelected, False); end; function TMDIChild.GetTableSize(ds: TDataSet): Int64; var d, i: String; begin d := FieldContent(ds, 'Data_length'); i := FieldContent(ds, 'Index_length'); if (d = '') or (i = '') then Result := -1 else Result := MakeInt(d) + MakeInt(i); end; function TMDIChild.DbTableListCached(db: String): Boolean; begin Result := CachedTableLists.IndexOf(db) > -1; end; procedure TMDIChild.editFilterSearchChange(Sender: TObject); var Add, Clause: WideString; i: Integer; ed: TEdit; begin ed := TEdit(Sender); Clause := ''; Add := ''; if ed.Text <> '' then begin for i := 0 to Length(VTRowDataListColumns) - 1 do begin if i > 0 then Add := Add + ' OR '; Add := Add + mask(VTRowDataListColumns[i].Captions[0]) + ' LIKE ' + esc('%'+ed.Text+'%'); if Length(Add) > 45 then begin Clause := Clause + Add + CRLF; Add := ''; end; end; if Add <> '' then Clause := Clause + Add; end; SynMemoFilter.Text := Clause; SynMemoFilterChange(Sender); end; procedure TMDIChild.ListColumnsDblClick(Sender: TObject); begin Mainform.actEditField.Execute; end; procedure TMDIChild.SynMemoFilterChange(Sender: TObject); var SomeText: Boolean; begin SomeText := (SynMemoFilter.GetTextLen > 0) or (editFilterSearch.Text <> ''); Mainform.actClearFilterEditor.Enabled := SomeText; end; procedure TMDIChild.ToggleFilterPanel(ForceVisible: Boolean = False); var ShowIt: Boolean; begin ShowIt := ForceVisible or (not pnlFilter.Visible); tbtnDataFilter.Down := ShowIt; pnlFilter.Visible := ShowIt; if ShowIt and SynMemoFilter.CanFocus and (not SynMemoFilter.Focused) then SynMemoFilter.SetFocus; end; procedure TMDIChild.editFilterSearchEnter(Sender: TObject); begin // Enables triggering apply button with Enter btnFilterApply.Default := True; end; procedure TMDIChild.editFilterSearchExit(Sender: TObject); begin btnFilterApply.Default := False; end; {** A grid cell fetches its text content } procedure TMDIChild.GridGetText(Sender: TBaseVirtualTree; Node: PVirtualNode; Column: TColumnIndex; TextType: TVSTTextType; var CellText: WideString); const NullText = '(NULL)'; var c: TGridCell; EditingCell: Boolean; begin if Column = -1 then Exit; if Sender = DataGrid then c := FDataGridResult.Rows[Node.Index].Cells[Column] else c := FQueryGridResult.Rows[Node.Index].Cells[Column]; EditingCell := Sender.IsEditing and (Node = Sender.FocusedNode) and (Column = Sender.FocusedColumn); if c.Modified then begin if c.NewIsNull then begin if EditingCell then CellText := '' else CellText := NullText; end else CellText := c.NewText; end else begin if c.IsNull then begin if EditingCell then CellText := '' else CellText := NullText; end else CellText := c.Text; end; end; {** Cell in data- or query grid gets painted. Colorize font. This procedure is called extremely often for repainting the grid cells. Keep it highly optimized. } procedure TMDIChild.GridPaintText(Sender: TBaseVirtualTree; const TargetCanvas: TCanvas; Node: PVirtualNode; Column: TColumnIndex; TextType: TVSTTextType); var isNull: Boolean; cl: TColor; r: TGridResult; begin if Column = -1 then Exit; if Sender = DataGrid then r := FDataGridResult else r := FQueryGridResult; // Make primary key columns bold if r.Columns[Column].IsPK then TargetCanvas.Font.Style := TargetCanvas.Font.Style + [fsBold]; // Do not apply any color on a selected, highlighted node to keep readability if vsSelected in Node.States then Exit; // NULL value isNull := r.Rows[Node.Index].Cells[Column].IsNull; // Numeric field if r.Columns[Column].isInt or r.Columns[Column].isFloat then if isNull then cl := $FF9090 else cl := clBlue // Date field else if r.Columns[Column].isDate then if isNull then cl := $6060CC else cl := clMaroon // Text field else if r.Columns[Column].isText then if isNull then cl := $60CC60 else cl := clGreen // Text field else if r.Columns[Column].isBlob then if isNull then cl := $CC60CC else cl := clPurple else if isNull then cl := COLOR_NULLVALUE else cl := clWindowText; TargetCanvas.Font.Color := cl; end; {** Header column in datagrid clicked. Left button: handle ORDER BY Right button: show column selection box } procedure TMDIChild.DataGridHeaderClick(Sender: TVTHeader; Column: TColumnIndex; Button: TMouseButton; Shift: TShiftState; X, Y: Integer); var c : TOrderCol; frm: TForm; begin if Button = mbLeft then begin c := TOrderCol.Create; c.ColumnName := Sender.Columns[Column].Text; HandleOrderColumns(c); ViewData(Sender); end else begin frm := TColumnSelectionForm.Create(self); // Position new form relative to btn's position frm.Top := Y + DataGrid.ClientOrigin.Y - Integer(DataGrid.Header.Height); frm.Left := X + DataGrid.ClientOrigin.X; // Display form frm.Show; end; end; {** Only allow grid editing if there is a good key available } procedure TMDIChild.setNULL1Click(Sender: TObject); begin DataGrid.Text[DataGrid.FocusedNode, DataGrid.FocusedColumn] := ''; FDataGridResult.Rows[DataGrid.FocusedNode.Index].Cells[DataGrid.FocusedColumn].NewIsNull := True; FDataGridResult.Rows[DataGrid.FocusedNode.Index].Cells[DataGrid.FocusedColumn].Modified := True; FDataGridResult.Rows[DataGrid.FocusedNode.Index].State := grsModified; Mainform.actDataPost.Enabled := True; Mainform.actDataCancelEdit.Enabled := True; DataGrid.RepaintNode(DataGrid.FocusedNode); end; {** Content of a grid cell was modified } procedure TMDIChild.DataGridNewText(Sender: TBaseVirtualTree; Node: PVirtualNode; Column: TColumnIndex; NewText: WideString); var Row: TGridRow; AllowEditing: Boolean; begin Row := FDataGridResult.Rows[Node.Index]; AllowEditing := True; if Row.State = grsDefault then AllowEditing := CheckUniqueKeyClause; if AllowEditing then begin // Remember new value Row.Cells[Column].NewText := NewText; Row.Cells[Column].Modified := True; // Set state of row for UPDATE mode, don't touch grsInserted if Row.State = grsDefault then FDataGridResult.Rows[Node.Index].State := grsModified; Mainform.actDataPost.Enabled := True; Mainform.actDataCancelEdit.Enabled := True; end; end; {** Checks if there is a unique key available which can be used for UPDATEs and INSERTs } function TMDIChild.CheckUniqueKeyClause: Boolean; var mres: Integer; begin Result := GetKeyColumns(FSelectedTableKeys).Count > 0; if not Result then begin mres := MessageDlg('Grid editing is blocked because this table does not have a primary '+ 'or a unique key. You can create such a key using the index manager.'+CRLF+CRLF+ 'Press'+CRLF+ ' [Ok] to cancel editing and call the index manager'+CRLF+ ' [Cancel] to cancel editing.', mtWarning, [mbOK, mbCancel], 0); if mres = mrOK then MainForm.actEditIndexesExecute(DataGrid); end; end; {** DataGrid: node focus has changed } procedure TMDIChild.DataGridChange(Sender: TBaseVirtualTree; Node: PVirtualNode); begin if not Assigned(Node) then Exit; Mainform.actDataFirst.Enabled := Node <> Sender.GetFirst; Mainform.actDataLast.Enabled := Node <> Sender.GetLast; Mainform.actDataDelete.Enabled := Sender.SelectedCount > 0; end; {** DataGrid: node and/or column focus is about to change. See if we allow that. } procedure TMDIChild.DataGridFocusChanging(Sender: TBaseVirtualTree; OldNode, NewNode: PVirtualNode; OldColumn, NewColumn: TColumnIndex; var Allowed: Boolean); begin // Detect changed focus and update row if Assigned(OldNode) and Assigned(NewNode) and (OldNode <> NewNode) then Allowed := DataGridPostUpdateOrInsert(OldNode) else Allowed := True; end; {** DataGrid: invoke update or insert routine } function TMDIChild.DataGridPostUpdateOrInsert(Node: PVirtualNode): Boolean; begin Result := True; if Cardinal(High(FDataGridResult.Rows)) >= Node.Index then case FDataGridResult.Rows[Node.Index].State of grsModified: Result := GridPostUpdate(DataGrid); grsInserted: Result := GridPostInsert(DataGrid); end; end; {** DataGrid: compose and fire UPDATE query } function TMDIChild.GridPostUpdate(Sender: TBaseVirtualTree): Boolean; var i: Integer; sql, Val: WideString; Row: TGridRow; ds: TDataSet; begin sql := 'UPDATE '+mask(SelectedTable)+' SET'; Row := FDataGridResult.Rows[Sender.FocusedNode.Index]; for i := 0 to Length(FDataGridResult.Columns) - 1 do begin if Row.Cells[i].Modified then begin Val := Row.Cells[i].NewText; if FDataGridResult.Columns[i].IsInt then // don't quote or convert else if FDataGridResult.Columns[i].IsFloat then Val := FloatStr(Val) else Val := esc(Val); if Row.Cells[i].NewIsNull then Val := 'NULL'; sql := sql + ' ' + mask(FDataGridResult.Columns[i].Name) + '=' + Val + ', '; end; end; // Cut trailing comma sql := Copy(sql, 1, Length(sql)-2); sql := sql + ' WHERE ' + GetWhereClause(Row, FDataGridResult.Columns, FSelectedTableKeys); try // Send UPDATE query ExecUpdateQuery(sql, False, True); Result := True; except Result := False; end; if Result then begin // Reselect just updated row in grid from server to ensure displaying // correct values which were silently converted by the server for i := 0 to Length(FDataGridResult.Columns) - 1 do begin if not Row.Cells[i].Modified then Continue; Row.Cells[i].Text := Row.Cells[i].NewText; Row.Cells[i].IsNull := Row.Cells[i].NewIsNull; end; GridFinalizeEditing(Sender); sql := 'SELECT '; for i := 0 to Length(FDataGridResult.Columns) - 1 do sql := sql + mask(FDataGridResult.Columns[i].Name) + ', '; // Cut trailing comma sql := Copy(sql, 1, Length(sql)-2); sql := sql + ' FROM ' + mask(SelectedTable) + ' WHERE ' + GetWhereClause(Row, FDataGridResult.Columns, FSelectedTableKeys); ds := ExecSelectQuery(sql); if ds.RecordCount = 1 then begin for i := 0 to ds.FieldCount - 1 do begin Row.Cells[i].Text := ds.Fields[i].AsWideString; Row.Cells[i].IsNull := ds.Fields[i].IsNull; end; Sender.RepaintNode(Sender.FocusedNode); end else begin logsql('Unable to identify updated row, found '+FormatNumber(ds.RecordCount)+' identical row(s). Doing full reload.'); viewdata(Sender); end; ds.Free; end; end; {** Repaint edited node and reset state of grid row } procedure TMDIChild.GridFinalizeEditing(Sender: TBaseVirtualTree); var i, c: Integer; begin c := Sender.FocusedNode.Index; FDataGridResult.Rows[c].State := grsDefault; for i := 0 to Length(FDataGridResult.Rows[c].Cells) - 1 do begin FDataGridResult.Rows[c].Cells[i].NewText := ''; FDataGridResult.Rows[c].Cells[i].Modified := False; end; Sender.RepaintNode(Sender.FocusedNode); Mainform.actDataPost.Enabled := False; Mainform.actDataCancelEdit.Enabled := False; end; {** Compose a WHERE clause used for UPDATEs and DELETEs } function TMDIChild.GetWhereClause(Row: TGridRow; Columns: TGridColumns; KeyList: TDataSet): WideString; var i, j: Integer; KeyVal: WideString; KeyCols: WideStrings.TWideStringlist; begin Result := ''; KeyCols := GetKeyColumns(KeyList); for i := 0 to KeyCols.Count - 1 do begin for j := 0 to Length(Columns) - 1 do begin if Columns[j].Name = KeyCols[i] then break; end; // Find old value of key column KeyVal := Row.Cells[j].Text; // Quote if needed if FDataGridResult.Columns[j].IsInt then else if FDataGridResult.Columns[j].IsFloat then KeyVal := FloatStr(KeyVal) else KeyVal := esc(KeyVal); if Row.Cells[j].IsNull then KeyVal := ' IS NULL' else KeyVal := '=' + KeyVal; Result := Result + mask(KeyCols[i]) + KeyVal + ' AND '; end; // Cut trailing AND Result := Copy(Result, 1, Length(Result)-5); end; {** Find key columns for a WHERE clause by analysing a SHOW KEYS FROM ... resultset } function TMDIChild.GetKeyColumns(KeyList: TDataset): WideStrings.TWideStringlist; var preferredKey: WideString; begin // Find best key for updates KeyList.First; while not KeyList.Eof do begin if KeyList.FieldByName('Non_unique').AsInteger = 0 then begin preferredKey := KeyList.FieldByName('Key_name').AsWideString; if preferredKey = 'PRIMARY' then break; end; KeyList.Next; end; // Find relevant key column names Result := WideStrings.TWideStringlist.Create; if preferredKey <> '' then begin // Found a unique key KeyList.First; while not KeyList.Eof do begin if KeyList.FieldByName('Key_name').AsWideString = preferredKey then Result.Add(KeyList.FieldByName('Column_name').AsWideString); KeyList.Next; end; end; end; {** DataGrid: compose and fire UPDATE query } procedure TMDIChild.DataGridInsertRow; var i, j: Integer; begin i := Length(FDataGridResult.Rows); SetLength(FDataGridResult.Rows, i+1); SetLength(FDataGridResult.Rows[i].Cells, Length(FDataGridResult.Columns)); FDataGridResult.Rows[i].State := grsInserted; for j := 0 to Length(FDataGridResult.Rows[i].Cells) - 1 do begin FDataGridResult.Rows[i].Cells[j].Text := ''; end; DataGrid.AddChild(nil); DataGrid.FocusedNode := DataGrid.GetLast; DataGrid.ClearSelection; DataGrid.Selected[DataGrid.FocusedNode] := True; Mainform.actDataPost.Enabled := True; Mainform.actDataCancelEdit.Enabled := True; end; {** DataGrid: compose and fire INSERT query } function TMDIChild.GridPostInsert(Sender: TBaseVirtualTree): Boolean; var Row: TGridRow; sql, Cols, Val, Vals, Value: WideString; i, j: Integer; Node: PVirtualNode; KeyCols: WideStrings.TWideStringlist; ds: TDataset; begin Node := Sender.FocusedNode; Row := FDataGridResult.Rows[Node.Index]; Cols := ''; Vals := ''; for i := 0 to Length(FDataGridResult.Columns) - 1 do begin FSelectedTableColumns.RecNo := i; if Row.Cells[i].Modified then begin Cols := Cols + mask(FDataGridResult.Columns[i].Name) + ', '; Val := Row.Cells[i].NewText; if FDataGridResult.Columns[i].IsInt then else if FDataGridResult.Columns[i].IsFloat then Val := FloatStr(Val) else Val := esc(Val); if Row.Cells[i].NewIsNull then Val := 'NULL'; Vals := Vals + Val + ', '; end; end; if Length(Cols) = 0 then begin // No field was manually modified, cancel the INSERT in that case Sender.BeginUpdate; Sender.DeleteNode(Node); SetLength(FDataGridResult.Rows, Length(FDataGridResult.Rows) - 1); Sender.EndUpdate; Result := True; // Important for DataGridFocusChanging to allow moving focus end else begin // At least one field was modified, assume this INSERT should be posted Vals := Copy(Vals, 1, Length(Vals)-2); Cols := Copy(Cols, 1, Length(Cols)-2); sql := 'INSERT INTO '+mask(SelectedTable)+' ('+Cols+') VALUES ('+Vals+')'; try // Send INSERT query ExecUpdateQuery(sql, False, True); Result := True; except Result := False; end; if Result then begin // Reselect just inserted row in grid from server to ensure displaying // correct values which were silently converted by the server sql := 'SELECT * FROM ' + mask(SelectedTable) + ' WHERE '; KeyCols := GetKeyColumns(FSelectedTableKeys); for i := 0 to KeyCols.Count - 1 do begin Value := ''; FSelectedTableColumns.First; for j:=0 to FSelectedTableColumns.RecordCount-1 do begin // Check if there is an auto_increment'ed PK which was NOT manually edited if FSelectedTableColumns.FieldByName('Field').AsWideString = KeyCols[i] then begin if (FSelectedTableColumns.FieldByName('Extra').AsString = 'auto_increment') and (not Row.Cells[j].Modified) then Value := '=' + GetVar('SELECT LAST_INSERT_ID()') else if Row.Cells[j].Modified then begin if Row.Cells[j].NewIsNull then Value := ' IS NULL' else Value := '=' + esc(Row.Cells[j].NewText); end else Value := '='''''; break; end; FSelectedTableColumns.Next; end; sql := sql + ' ' + mask(KeyCols[i]) + Value + ' AND'; end; if KeyCols.Count = 0 then begin // No PK existant. Try a non unique WHERE clause and assume the last row was the just inserted one for i := 0 to Length(FDataGridResult.Columns) - 1 do begin if Row.Cells[i].Modified then begin if Row.Cells[i].NewIsNull then Value := ' IS NULL' else Value := '=' + esc(Row.Cells[i].NewText); sql := sql + ' ' + mask(FDataGridResult.Columns[i].Name) + Value + ' AND'; end; end; end; // Cut trailing AND sql := Copy(sql, 1, Length(sql)-4); GridFinalizeEditing(Sender); ds := ExecSelectQuery(sql); if ds.RecordCount > 0 then begin // Make sure we're fetching the last inserted row which matches the WHERE clause ds.Last; for i := 0 to ds.FieldCount - 1 do begin Row.Cells[i].Text := ds.Fields[i].AsWideString; Row.Cells[i].IsNull := ds.Fields[i].IsNull; end; Sender.RepaintNode(Sender.FocusedNode); end else begin logsql('Unable to identify inserted row. Doing full reload.'); viewdata(Sender); end; ds.Free; end; end; end; {** DataGrid: compose and fire DELETE query } function TMDIChild.GridPostDelete(Sender: TBaseVirtualTree): Boolean; var Node: PVirtualNode; sql: WideString; Affected: Int64; Selected: Integer; Offset: Cardinal; msg: String; begin Node := Sender.GetFirstSelected; sql := 'DELETE FROM '+mask(SelectedTable)+' WHERE'; while Assigned(Node) do begin sql := sql + ' (' + GetWhereClause(FDataGridResult.Rows[Node.Index], FDataGridResult.Columns, FSelectedTableKeys) + ') OR'; Node := Sender.GetNextSelected(Node); end; sql := Copy(sql, 1, Length(sql)-3); try // Send DELETE query ExecUpdateQuery(sql, False, True); Result := True; except Result := False; end; if Result then begin // Remove deleted row nodes out of the grid Affected := FMysqlConn.Connection.GetAffectedRowsFromLastPost; Selected := Sender.SelectedCount; if Affected = Selected then begin // Fine. Number of deleted rows equals the selected node count. // In this case, just remove the selected nodes, avoid a full reload Sender.BeginUpdate; Node := Sender.GetFirstSelected; Offset := 0; // Needed to decrease the array index after one element was deleted while Assigned(Node) do begin if Node.Index + 1 - Offset < Cardinal(High(FDataGridResult.Rows)) then begin // Delete node somewhere in the middle of the array System.Move( FDataGridResult.Rows[Node.Index + 1 - Offset], FDataGridResult.Rows[Node.Index - Offset], (Cardinal(Length(FDataGridResult.Rows)) - (Node.Index - Offset - Cardinal(Low(FDataGridResult.Rows))) - 1) * SizeOf(TGridRow) ); end; SetLength(FDataGridResult.Rows, Length(FDataGridResult.Rows) - 1); inc(Offset); Node := Sender.GetNextSelected(Node); end; Sender.DeleteSelectedNodes; Sender.EndUpdate; end else begin // Should never get called as we block DELETEs on tables without a unique key ViewData(Sender); msg := 'Warning: Consistency problem detected.' + CRLF + CRLF + 'The last DELETE query affected ' + FormatNumber(Affected) + ' rows, when it should have touched '+FormatNumber(Selected)+' row(s)!' + CRLF + CRLF + 'This is most likely caused by not having a primary key in the table''s definition.'; LogSQL( msg ); MessageDlg( msg, mtWarning, [mbOK], 0); end; end; end; {** DataGrid: cancel INSERT or UPDATE mode, reset modified node data } procedure TMDIChild.DataGridCancelEdit(Sender: TObject); var i: Integer; begin case FDataGridResult.Rows[DataGrid.FocusedNode.Index].State of grsModified: GridFinalizeEditing(DataGrid); grsInserted: begin i := Length(FDataGridResult.Rows); DataGrid.DeleteNode(DataGrid.FocusedNode, False); SetLength(FDataGridResult.Rows, i-1); // Focus+select last node if possible Mainform.actDataLastExecute(Sender); end; end; Mainform.actDataPost.Enabled := False; Mainform.actDataCancelEdit.Enabled := False; end; procedure TMDIChild.GridKeyDown(Sender: TObject; var Key: Word; Shift: TShiftState); var g: TVirtualStringTree; begin g := TVirtualStringTree(Sender); case Key of VK_HOME: g.FocusedColumn := 0; VK_END: g.FocusedColumn := g.Header.Columns.Count-1; VK_RETURN: if Assigned(g.FocusedNode) then g.EditNode(g.FocusedNode, g.FocusedColumn); end; end; procedure TMDIChild.DataGridEditing(Sender: TBaseVirtualTree; Node: PVirtualNode; Column: TColumnIndex; var Allowed: Boolean); begin // Move Esc shortcut from "Cancel row editing" to "Cancel cell editing" Mainform.actDataCancelEdit.ShortCut := 0; end; procedure TMDIChild.DataGridEdited(Sender: TBaseVirtualTree; Node: PVirtualNode; Column: TColumnIndex); begin // Reassign Esc to "Cancel row editing" action Mainform.actDataCancelEdit.ShortCut := TextToShortcut('Esc'); end; procedure TMDIChild.DataGridEditCancelled(Sender: TBaseVirtualTree; Column: TColumnIndex); begin // Reassign Esc to "Cancel row editing" action Mainform.actDataCancelEdit.ShortCut := TextToShortcut('Esc'); end; procedure TMDIChild.DataGridCreateEditor(Sender: TBaseVirtualTree; Node: PVirtualNode; Column: TColumnIndex; out EditLink: IVTEditLink); begin if FDataGridResult.Columns[Column].IsText then EditLink := TMemoEditorLink.Create else EditLink := TStringEditLink.Create; end; end.