opensource/HeidiSQL
1
0
Fork 0
mirror of https://github.com/HeidiSQL/HeidiSQL.git synced 2025-08-14 10:02:10 +08:00
Code Issues Packages Projects Releases Wiki Activity
Files
HeidiSQL/source/childwin.pas

6195 lines
201 KiB
ObjectPascal
Raw Blame History

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, DBGrids,
DBCtrls, helpers,
Grids, ZDataset,
ZAbstractRODataset, ZConnection,
ZSqlMonitor, EDBImage, ZDbcLogging,
SynCompletionProposal, HeidiComp, SynEditMiscClasses, MysqlQuery,
MysqlQueryThread, queryprogress, communication, MysqlConn, Tabs,
VirtualTrees, createdatabase, tbl_properties, createtable, TntDBGrids, TntClasses,
SynRegExpr, EditVar, PngSpeedButton, WideStrings, WideStrUtils, SynUnicode,
TntStdCtrls, TntDBCtrls;
type
TOrderCol = class(TObject)
ColumnName: String;
SortDirection: Byte;
end;
TOrderColArray = Array of TOrderCol;
type
TMDIChild = class(TForm)
panelTop: TPanel;
DBtree: TVirtualStringTree;
Splitter1: TSplitter;
TableShow: TPanel;
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;
gridData: TTntDBGrid;
DataSource1: TDataSource;
gridQuery: TTntDBGrid;
DataSource2: TDataSource;
Copytableas1: TMenuItem;
Filter1: TMenuItem;
Delete1: TMenuItem;
N6: TMenuItem;
QF1: TMenuItem;
QF2: TMenuItem;
QuickFilter1: TMenuItem;
QF3: TMenuItem;
QF4: TMenuItem;
N7: TMenuItem;
DropFilter1: TMenuItem;
popupFilterOpenFile: TPopupMenu;
OpenDialog2: TOpenDialog;
PrintList2: TMenuItem;
PrintList3: TMenuItem;
PrintList4: TMenuItem;
N1: TMenuItem;
MenuCopyTable: TMenuItem;
pageCtlBottom: TPageControl;
tabLog: TTabSheet;
tabEditors: TTabSheet;
tabFilter: TTabSheet;
SynMemoSQLLog: TSynMemo;
toolbarEditors: TToolBar;
btnBlobWordWrap: TToolButton;
btnBlobLoad: TToolButton;
btnBlobSave: TToolButton;
pageCtlEditors: TPageControl;
tabEditorText: TTabSheet;
DBMemo1: TTntDBMemo;
tabEditorImage: TTabSheet;
SynMemoFilter: TSynMemo;
N18: TMenuItem;
selectall1: TMenuItem;
MenuAutoupdate: TMenuItem;
TimerHost: TTimer;
Set1: TMenuItem;
EnableAutoRefresh: TMenuItem;
DisableAutoRefresh: TMenuItem;
Saveastextfile1: TMenuItem;
QF7: TMenuItem;
QF5: TMenuItem;
QF6: TMenuItem;
Panel10: TPanel;
ComboBoxWhereFilters: TComboBox;
ToolBar4: TToolBar;
btnFilterSet: TToolButton;
btnFilterLoad: TToolButton;
btnFilterSave: TToolButton;
btnFilterClear: TToolButton;
sepFilter1: TToolButton;
btnFilterPrevious: TToolButton;
btnFilterNext: TToolButton;
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;
btnBlobViewAsHtml: TToolButton;
HTMLview1: TMenuItem;
btnBlobCopy: TToolButton;
ScrollBox1: TScrollBox;
InsertfilesintoBLOBfields1: TMenuItem;
InsertfilesintoBLOBfields2: TMenuItem;
InsertfilesintoBLOBfields3: TMenuItem;
N19: TMenuItem;
setNULL1: TMenuItem;
ZSQLMonitor1: TZSQLMonitor;
EDBImage1: TEDBImage;
Exporttables1: TMenuItem;
Exporttables2: TMenuItem;
EditDataSearch: TEdit;
ButtonDataSearch: TButton;
Find1: TMenuItem;
popupDbGridHeader: TPopupMenu;
SynCompletionProposal1: TSynCompletionProposal;
OpenDialogSQLFile: TOpenDialog;
SaveDialogSQLFile: TSaveDialog;
SynEditSearch1: TSynEditSearch;
N16: TMenuItem;
ManageIndexes1: TMenuItem;
tabCommandStats: TTabSheet;
ListCommandStats: TVirtualStringTree;
CheckBoxDataSearch: TCheckBox;
QF13: TMenuItem;
QF14: TMenuItem;
QF15: TMenuItem;
QF16: TMenuItem;
QF17: TMenuItem;
N21: TMenuItem;
btnUnsafeEdit: TToolButton;
btnColumnSelection: TPngSpeedButton;
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;
btnDataSorting: TPngSpeedButton;
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;
popupFilter: TPopupMenu;
menuApplyFilter: TMenuItem;
menuFilterCopy: TMenuItem;
menuFilterPaste: TMenuItem;
menuFilterClear: TMenuItem;
N8: TMenuItem;
N20: TMenuItem;
menuFilterSQLhelp: TMenuItem;
N25: 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;
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 ListColumnsStateChange(Sender: TBaseVirtualTree; Enter, Leave:
TVirtualTreeStates);
procedure DBMemo1Exit(Sender: TObject);
procedure btnUnsafeEditClick(Sender: TObject);
procedure gridMouseDown(Sender: TObject; Button: TMouseButton;
Shift: TShiftState; X, Y: Integer);
procedure controlsKeyUp(Sender: TObject; var Key: Word; Shift: TShiftState);
procedure ZQueryGridAfterPost(DataSet: TDataSet);
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);
function FieldContent(ds: TDataSet; FieldName: 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 SynMemoQueryChange(Sender: TObject);
procedure TimerHostUptimeTimer(Sender: TObject);
procedure FormActivate(Sender: TObject);
procedure FormDeactivate(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 gridDataTitleClick(Column: TColumn);
procedure Filter1Click(Sender: TObject);
procedure QuickFilterClick(Sender: TObject);
procedure btnBlobWordWrapClick(Sender: TObject);
procedure pageCtlEditorsChange(Sender: TObject);
procedure btnBlobSaveClick(Sender: TObject);
procedure btnBlobLoadClick(Sender: TObject);
procedure btnFilterLoadClick(Sender: TObject);
procedure btnFilterSaveClick(Sender: TObject);
procedure setFilter(Sender: TObject);
procedure ClearFilter(Sender: TObject);
procedure LoadSQLWhereFile(Sender: TObject);
procedure DropFilter1Click(Sender: TObject);
procedure selectall1Click(Sender: TObject);
procedure popupResultGridPopup(Sender: TObject);
procedure gridDataColumnMoved(Sender: TObject; FromIndex,
ToIndex: Integer);
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 SynMemoQueryKeyUp(Sender: TObject; var Key: Word;
Shift: TShiftState);
procedure SynMemoQueryMouseUp(Sender: TObject; Button: TMouseButton;
Shift: TShiftState; X, Y: Integer);
procedure popupHostPopup(Sender: TObject);
procedure Saveastextfile1Click(Sender: TObject);
procedure popupTreeViewPopup(Sender: TObject);
procedure btnFilterPreviousClick(Sender: TObject);
procedure btnFilterNextClick(Sender: TObject);
procedure ComboBoxWhereFiltersChange(Sender: TObject);
procedure DBGridDblClick(Sender: TObject);
procedure SaveDialogExportDataTypeChange(Sender: TObject);
procedure GridDrawColumnCell(Sender: TObject; const Rect: TRect; DataCol:
Integer; Column: TColumn; State: TGridDrawState);
procedure popupDataGridPopup(Sender: TObject);
procedure InsertDate(Sender: TObject);
procedure btnBlobCopyClick(Sender: TObject);
procedure setNULL1Click(Sender: TObject);
procedure ZQueryGridBeforeClose(DataSet: TDataSet);
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 ResizeImageToFit;
procedure splitterTopBottomMoved(Sender: TObject);
procedure DataSourceDataChange(Sender: TObject; Field: TField);
procedure DBGridColEnter(Sender: TObject);
procedure ButtonDataSearchClick(Sender: TObject);
procedure EditDataSearchEnter(Sender: TObject);
procedure EditDataSearchExit(Sender: TObject);
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 menuDeleteSnippetClick(Sender: TObject);
function GetCalculatedLimit( Table: String ): 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 menuLogToFileClick(Sender: TObject);
procedure menuOpenLogFolderClick(Sender: TObject);
procedure vstGetHint(Sender: TBaseVirtualTree; Node: PVirtualNode;
Column: TColumnIndex; var LineBreakStyle: TVTTooltipLineBreakStyle; var
HintText: WideString);
procedure popupFilterPopup(Sender: TObject);
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 ListTablesEdited(Sender: TBaseVirtualTree; Node: PVirtualNode;
Column: TColumnIndex);
procedure ListVariablesDblClick(Sender: TObject);
procedure menuEditVariableClick(Sender: TObject);
procedure menuRefreshDBTreeClick(Sender: TObject);
procedure menuTreeCollapseAllClick(Sender: TObject);
procedure menuTreeExpandAllClick(Sender: TObject);
procedure SynMemoFilterDropFiles(Sender: TObject; X, Y: Integer; AFiles:
TWideStrings);
procedure tabsetQueryHelpersGetImageIndex(Sender: TObject; TabIndex: Integer;
var ImageIndex: Integer);
private
uptime : Integer;
time_connected : Cardinal;
viewingdata : Boolean;
WhereFilters : TStringList;
WhereFiltersIndex : Integer;
WordWrap : 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;
function GetQueryRunning: Boolean;
procedure SetQueryRunning(running: Boolean);
procedure GridHighlightChanged(Sender: TObject);
procedure SaveBlob;
function GetActiveGrid: TTntDBGrid;
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 ProcessClientSQL(command: WideString; parameter: WideString);
procedure SaveListSetup( List: TVirtualStringTree );
procedure RestoreListSetup( List: TVirtualStringTree );
procedure SetVisibleListColumns( List: TVirtualStringTree; Columns: TStringList );
function GetTableSize(ds: TDataSet): Int64;
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 : Integer;
prefCSVSeparator,
prefCSVEncloser,
prefCSVTerminator : String[10];
prefLogToFile,
prefPreferShowTables : Boolean;
CreateDatabaseForm : TCreateDatabaseForm;
CreateTableForm : TCreateTableForm;
TablePropertiesForm : Ttbl_properties_form;
procedure Init(AConn : POpenConnProf; AMysqlConn : TMysqlConn);
//procedure HandleQueryNotification(ASender : TMysqlQuery; AEvent : Integer);
function GetVisualDataset() : TDataSet;
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: TTntDBGrid 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;
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;
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;
winName : String;
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;
Caption := 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;
// 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, '|', '<27>', [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;
FilterFilename: String;
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);
pageCtlBottom.Height := Mainform.GetRegValue(REGNAME_SQLOUTHEIGHT, pageCtlBottom.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);
// SQL-Font:
fontname := Mainform.GetRegValue(REGNAME_FONTNAME, DEFAULT_FONTNAME);
fontsize := Mainform.GetRegValue(REGNAME_FONTSIZE, DEFAULT_FONTSIZE);
SynMemoQuery.Font.Name := fontname;
SynMemoSQLLog.Font.Name := fontname;
SynMemoProcessView.Font.Name := fontname;
SynMemoFilter.Font.Name := fontname;
SynMemoQuery.Font.Size := fontsize;
SynMemoSQLLog.Font.Size := fontsize;
SynMemoProcessView.Font.Size := fontsize;
SynMemoFilter.Font.Size := fontsize;
// Data-Font:
datafontname := Mainform.GetRegValue(REGNAME_DATAFONTNAME, DEFAULT_DATAFONTNAME);
datafontsize := Mainform.GetRegValue(REGNAME_DATAFONTSIZE, DEFAULT_DATAFONTSIZE);
gridData.Font.Name := datafontname;
gridQuery.Font.Name := datafontname;
DBMemo1.Font.Name := datafontname;
gridData.Font.Size := datafontsize;
gridQuery.Font.Size := datafontsize;
DBMemo1.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)));
// SQL-Filter-Files-History
popupFilterOpenFile.Items.Clear;
for i := 1 to 100 do begin
FilterFilename := Mainform.GetRegValue(REGNAME_SQLWHEREFILE + IntToStr(i), '');
if FilterFilename = '' then
break;
menuitem := Tmenuitem.Create(Self);
menuitem.Caption := IntToStr( popupFilterOpenFile.Items.count + 1) + ' ' + FilterFilename;
menuitem.OnClick := LoadSQLWhereFile;
popupFilterOpenFile.Items.Add( menuitem );
end;
// 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;
ds : TDataSet;
begin
SetWindowConnected( false );
SetWindowName( main.discname );
Application.Title := APPNAME;
ds := DataSource1.DataSet;
DataSource1.DataSet := nil;
if ds <> nil then ds.Close;
FreeAndNil(ds);
ds := DataSource2.DataSet;
DataSource2.DataSet := nil;
if ds <> nil then ds.Close;
FreeAndNil(ds);
// 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, pageCtlBottom.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);
FormDeactivate( Sender );
Mainform.ToolBarDatabase.Visible := False;
Mainform.ToolBarTable.Visible := False;
Mainform.ToolBarData.Visible := false;
Mainform.ToolBarQuery.Visible := 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 := SessionName;
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 := SessionName + ' - /' + 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 := SessionName + ' - /' + ActiveDatabase + '/' + SelectedTable;
end;
procedure TMDIChild.viewdata(Sender: TObject);
var
sorting : String;
DropDown : TTntStringList;
i : Integer;
j : Integer;
OrderColumns : TOrderColArray;
PrimaryKeyColumns : TStringList;
reg_value : String;
select_base : String;
limit,
tmpLimitStart,
tmpLimitEnd : Int64;
ds : TDataSet;
sl_query : TStringList;
DisplayedColumnsList : TStringList;
tmp : TDataSet;
begin
viewingdata := true;
sl_query := TStringList.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
limit := GetCalculatedLimit( SelectedTable );
// adjust limit in GUI
if limit <= 0 then
mainform.CheckBoxLimit.Checked := false
else begin
mainform.CheckBoxLimit.Checked := true;
tmpLimitStart := MakeInt(mainform.EditLimitStart.Text);
tmpLimitEnd := MakeInt(mainform.EditLimitEnd.Text);
if (tmpLimitEnd - tmpLimitStart) > limit then
mainform.EditLimitEnd.Text := IntToStr( tmpLimitStart + limit );
end;
mainform.Repaint;
end;
// set db-aware-component's properties...
DBMemo1.DataField := '';
DBMemo1.DataSource := DataSource1;
EDBImage1.DataField := '';
EDBImage1.DataSource := DataSource1;
if not dataselected and prefRememberFilters then
begin
SynMemoFilter.Text := '';
// Read cached WHERE-clause and set filter
reg_value := Mainform.GetRegValue( 'WHERECLAUSE_' + ActiveDatabase + '.' + SelectedTable, '', FConn.Description );
if reg_value <> '' then begin
SynMemoFilter.Text := reg_value;
// Ensure the user can see its previous specified filter
// in case of an SQL-error, it's important that he can delete it
tabFilter.tabVisible := true;
pageCtlBottom.ActivePage := tabFilter;
end;
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
btnDataSorting.Font.Color := clRed;
end
else
btnDataSorting.Font.Color := clWindowText;
PrimaryKeyColumns := TStringList.Create();
if ( ( SelectedTable <> '' ) and ( ActiveDatabase <> '' ) ) then
begin
// Ensure <Table> and <Data> are visible
tabTable.TabVisible := true;
tabData.TabVisible := true;
// Switch to <Data>
PageControlMain.ActivePage := tabData;
MainForm.ShowStatus( 'Retrieving data...' );
// Read columns to display from registry
reg_value := Mainform.GetRegValue(REGNAME_DISPLAYEDCOLUMNS + '_' + ActiveDatabase + '.' + SelectedTable, '', SessionName);
DisplayedColumnsList := explode( '`', reg_value);
// 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
if (
( mysql_version >= 40000 ) and
( Trim( Self.SynMemoFilter.Text ) <> '' )
) then
begin
select_base := select_base + ' SQL_CALC_FOUND_ROWS';
end;
// Selected columns
if DisplayedColumnsList.Count = 0 then
begin
select_base := select_base + ' *';
btnColumnSelection.Font.Color := clBtnText;
end
else
begin
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 fields
btnColumnSelection.Font.Color := clRed;
end;
select_base := select_base + ' FROM ' + mask( SelectedTable );
sl_query.Add( select_base );
// Apply custom WHERE filter
if ( Trim( Self.SynMemoFilter.Text ) <> '' ) then
begin
sl_query.Add( 'WHERE ' + Trim( Self.SynMemoFilter.Text ) );
end;
// Apply custom ORDER BY if detected in registry
if ( sorting <> '' ) then
begin
sl_query.Add( sorting );
end;
// Apply LIMIT
if ( mainform.CheckBoxLimit.Checked ) then
begin
sl_query.Add('LIMIT ' + mainform.EditLimitStart.Text + ', ' + mainform.EditLimitEnd.Text );
end;
try
// Avoid excessive GUI updates.
if ( DataSource1.DataSet <> nil ) then
begin
DataSource1.DataSet.DisableControls();
end;
// free previous resultset
tmp := DataSource1.DataSet;
DataSource1.DataSet := nil;
if tmp <> nil then tmp.Close;
FreeAndNil(tmp);
// start query (with wait dialog)
SynMemoFilter.Color := clWindow;
ds := GetResults(sl_query.Text, false);
MainForm.ShowStatus( 'Filling grid with record-data...' );
ds.DisableControls();
DataSource1.DataSet := ds;
// Attach After- and Before-Events to the new dataset
ds.AfterPost := ZQueryGridAfterPost;
ds.AfterDelete := ZQueryGridAfterPost;
ds.BeforeClose := ZQueryGridBeforeClose;
except
on E:Exception do
begin
// Most likely we have a wrong filter-clause when this happens
LogSQL( E.Message, True );
// Put the user with his nose onto the wrong filter
// either specified by user or
// created by HeidiSQL by using the search box
if ( SynMemoFilter.CanFocus ) then
begin
SynMemoFilter.SetFocus();
end;
SynMemoFilter.Color := $008080FF; // light pink
MessageDlg( E.Message, mtError, [mbOK], 0 );
MainForm.ShowStatus( STATUS_MSG_READY );
Screen.Cursor := crDefault;
Exit;
end;
end;
MainForm.ShowStatus( STATUS_MSG_READY );
if DataSource1.DataSet <> nil then begin
for i := 0 to Length(VTRowDataListColumns) - 1 do
begin
// give all enum-fields a PickList with its Items
if StrCmpBegin( 'enum', VTRowDataListColumns[i].Captions[1]) then
begin
DropDown := TTntStringList.Create;
DropDown.QuoteChar := '''';
DropDown.DelimitedText := getEnumValues( VTRowDataListColumns[i].Captions[1] );
for j := 0 to gridData.Columns.Count - 1 do
begin
if gridData.Columns[j].FieldName = VTRowDataListColumns[i].Captions[0] then
gridData.Columns[j].WidePickList := DropDown;
end;
end;
// make PK-columns = fsBold
for j := 0 to gridData.Columns.Count - 1 do
begin
if ( gridData.Columns[j].FieldName = VTRowDataListColumns[i].Captions[0] ) and
( VTRowDataListColumns[i].ImageIndex = ICONINDEX_PRIMARYKEY ) then
PrimaryKeyColumns.Add( VTRowDataListColumns[i].Captions[0] );
end;
end;
for j := 0 to gridData.Columns.Count - 1 do
begin
// for letting NULLs being inserted into "NOT NULL" fields
// in mysql5+, the server rejects inserts with NULLs in NOT NULL-fields,
// so the Required-check on client-side is not needed at any time
ds.Fields[j].Required := false;
// set column-width
if gridData.Columns[j].Width > prefDefaultColWidth then
gridData.Columns[j].Width := prefDefaultColWidth;
// Colorize ordered columns
for i := Low(OrderColumns) to High(OrderColumns) do
begin
if OrderColumns[i].ColumnName = gridData.Columns[j].Fieldname then
begin
if OrderColumns[i].SortDirection = ORDER_ASC then
gridData.Columns[j].Color := COLOR_SORTCOLUMN_ASC
else
gridData.Columns[j].Color := COLOR_SORTCOLUMN_DESC
end;
end;
// make PK-columns = fsBold
for i := 0 to PrimaryKeyColumns.Count - 1 do
begin
if PrimaryKeyColumns[i] = gridData.Columns[j].Fieldname then
gridData.Columns[j].Font.Style := gridData.Columns[j].Font.Style + [fsBold];
end;
end;
DisplayRowCountStats(ds);
dataselected := true;
viewingdata := false;
end;
ds.EnableControls();
pcChange(self);
end;
Screen.Cursor := crDefault;
finally
FreeAndNil(sl_query);
viewingdata := false;
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
begin
if ActiveGrid = gridQuery then
Exit;
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 ) + ' records 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
}
if Trim( SynMemoFilter.Text ) <> '' then
begin
if mysql_version >= 40000 then
rows_matching := StrToInt64Def(GetVar('SELECT @found_rows'), 0)
else
rows_matching := ActiveGrid.DataSource.DataSet.RecordCount;
end
else
rows_matching := rows_total;
if( rows_matching <> rows_total ) and
( Trim( SynMemoFilter.Text ) <> '' ) then
lblDataTop.Caption := lblDataTop.Caption + ', ' + FormatNumber(rows_matching) + ' matching to filter';
if ( rows_matching = rows_total ) and
( Trim( SynMemoFilter.Text ) <> '') then
lblDataTop.Caption := lblDataTop.Caption + ', filter matches all records';
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);
var
dummy, inDataTab: Boolean;
begin
inDataTab := PageControlMain.ActivePage = tabData;
tabFilter.tabVisible := inDataTab;
Mainform.actDatasetFirst.Enabled := inDataTab;
Mainform.actDatasetLast.Enabled := inDataTab;
Mainform.actDatasetInsert.Enabled := inDataTab;
Mainform.actDatasetDelete.Enabled := inDataTab;
Mainform.actDatasetPost.Enabled := inDataTab;
Mainform.actExecuteQuery.Enabled := PageControlMain.ActivePage = tabQuery;
Mainform.actExecuteSelection.Enabled := PageControlMain.ActivePage = tabQuery;
Mainform.actExecuteLine.Enabled := PageControlMain.ActivePage = tabQuery;
if (PageControlMain.ActivePage = tabData) and (not dataselected) then
viewdata(Sender);
if PageControlMain.ActivePage = tabQuery then
begin
// Manually invoke OnChange event of tabset to fill helper list with data
tabsetQueryHelpers.OnChange( Sender, tabsetQueryHelpers.TabIndex, dummy);
end;
// 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 gridData.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 + '" ...');
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);
MainForm.ShowStatus(STATUS_MSG_READY);
Screen.Cursor := OldCursor;
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; FieldName: String): String;
begin
Result := '';
if
(ds.FindField(FieldName) <> nil) and
(not ds.FindField(FieldName).IsNull)
then
Result := ds.FieldByName(FieldName).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: // A normal table
begin
VTRowDataListTables[i-1].ImageIndex := ICONINDEX_TABLE;
VTRowDataListTables[i-1].NodeType := NODETYPE_TABLE;
// Records
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);
// Ensure tree db node displays its chidren initialized
DBtree.ReinitChildren(FindDBNode(db), False);
MainForm.ShowStatus(STATUS_MSG_READY);
Screen.Cursor := crDefault;
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;
ds : TDataSet;
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
ds := GetResults( 'SHOW /*!32332 FULL */ COLUMNS FROM ' + mask(table), false );
// Hide column "Comment" on old servers.
hasCommentColumn := ds.FindField('Comment') <> nil;
if not hasCommentColumn then
ListColumns.Header.Columns[5].Options := ListColumns.Header.Columns[5].Options - [coVisible];
SetLength(VTRowDataListColumns, ds.RecordCount);
for i:=1 to ds.RecordCount do
begin
VTRowDataListColumns[i-1].ImageIndex := ICONINDEX_FIELD;
VTRowDataListColumns[i-1].Captions := TStringList.Create;
VTRowDataListColumns[i-1].Captions.Add( ds.FieldByName('Field').AsString );
VTRowDataListColumns[i-1].Captions.Add( ds.FieldByName('Type').AsString );
if lowercase( ds.FieldByName('Null').AsString ) = 'yes' then
VTRowDataListColumns[i-1].Captions.Add('Yes')
else VTRowDataListColumns[i-1].Captions.Add('No');
if ds.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(ds.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('''' + ds.FieldByName('Default').AsString + '''');
VTRowDataListColumns[i-1].Captions.Add( ds.FieldByName('Extra').AsString );
if hasCommentColumn then
VTRowDataListColumns[i-1].Captions.Add( ds.FieldByName('Comment').AsString )
else
VTRowDataListColumns[i-1].Captions.Add('');
ds.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);
ds.Close;
FreeAndNil(ds);
Screen.Cursor := crHourglass;
ds := GetResults( 'SHOW KEYS FROM ' + mask(table) );
for i:=1 to ds.RecordCount do
begin
// Search for the column name in listColumns
for j:=0 to Length(VTRowDataListColumns)-1 do
begin
if ds.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 := (ds.FieldByName('Comment').AsString = 'FULLTEXT')
else
isFulltext := (ds.FieldByName('Index_type').AsString = 'FULLTEXT');
// Primary key
if ds.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 ds.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;
ds.Next;
end;
ds.Close;
FreeAndNil(ds);
{
** 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) +' field(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
NodeSelected, tableSelected, ViewSelected : Boolean;
inDataOrQueryTab, inDataOrQueryTabNotEmpty : Boolean;
NodeData: PVTreeData;
SelectedNodes: TNodeArray;
ShowDBTlb, ShowTableTlb, ShowDataTlb, ShowQueryTlb: Boolean;
begin
// Make sure that main menu "drop table" affects table selected in tree view,
// not table (now invisibly) selected on the database grid.
if (PageControlMain.ActivePage <> tabDatabase) then ListTables.FocusedNode := nil;
SelectedNodes := ListTables.GetSortedSelection(False);
NodeSelected := (Length(SelectedNodes)>0) and FrmIsFocussed;
tableSelected := False;
ViewSelected := False;
// Check type of first selected node, to en-/disable certain menu items
if NodeSelected then begin
NodeData := ListTables.GetNodeData( SelectedNodes[0] );
tableSelected := NodeData.NodeType = NODETYPE_TABLE;
ViewSelected := NodeData.NodeType = NODETYPE_VIEW;
end;
Mainform.actEditTableFields.Enabled := NodeSelected;
Mainform.actEmptyTables.Enabled := tableSelected;
Mainform.actEditTableProperties.Enabled := tableSelected;
MenuRenameTable.Enabled := NodeSelected;
Mainform.actCopyTable.Enabled := NodeSelected;
Mainform.actEditView.Enabled := ViewSelected and (mysql_version >= 50001);
Mainform.actCreateView.Enabled := FrmIsFocussed 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 := NodeSelected or ((PageControlMain.ActivePage <> tabDatabase) and (SelectedTable <> '') and FrmIsFocussed);
MainForm.actCreateTable.Enabled := (ActiveDatabase <> '') and FrmIsFocussed;
MainForm.actImportCSV.Enabled := (mysql_version >= 32206) and FrmIsFocussed;
MainForm.actExportTables.Enabled := FrmIsFocussed;
MainForm.actRefresh.Enabled := FrmIsFocussed;
MainForm.actLoadSQL.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;
{***
Activate export-options if we're on Data- or Query-tab
PrintList should only be active if we're focussing one of the ListViews,
at least as long we are not able to print DBGrids
@see Issue 1686582
}
inDataOrQueryTab := FrmIsFocussed and ((PageControlMain.ActivePage = tabData) or (PageControlMain.ActivePage = tabQuery));
MainForm.actPrintList.Enabled := (not inDataOrQueryTab) and FrmIsFocussed;
// 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 (
(getActiveGrid.DataSource.DataSet = nil)
or getActiveGrid.DataSource.DataSet.IsEmpty
);
MainForm.actCopyAsCSV.Enabled := inDataOrQueryTabNotEmpty;
MainForm.actCopyAsHTML.Enabled := inDataOrQueryTabNotEmpty;
MainForm.actCopyAsXML.Enabled := inDataOrQueryTabNotEmpty;
MainForm.actExportData.Enabled := inDataOrQueryTabNotEmpty;
MainForm.actHTMLView.Enabled := inDataOrQueryTabNotEmpty;
Delete1.Enabled := inDataOrQueryTabNotEmpty; // Menuitem in popupDataGrid ("Delete record(s)")
// Hide irrelevant toolbars
ShowDbTlb := PageControlMain.ActivePage = tabDatabase;
if not ShowDbTlb then MainForm.ToolBarDatabase.Visible := False;
ShowTableTlb := PageControlMain.ActivePage = tabTable;
if not ShowTableTlb then MainForm.ToolBarTable.Visible := False;
ShowDataTlb := (PageControlMain.ActivePage = tabData) or (PageControlMain.ActivePage = tabTable);
if not ShowDataTlb then MainForm.ToolBarData.Visible := False;
ShowQueryTlb := PageControlMain.ActivePage = tabQuery;
if not ShowQueryTlb then MainForm.ToolBarQuery.Visible := False;
// Unhide relevant toolbar
MainForm.ToolBarDatabase.Visible := ShowDbTlb;
MainForm.ToolBarTable.Visible := ShowTableTlb;
MainForm.ToolBarData.Visible := ShowDataTlb;
MainForm.ToolBarQuery.Visible := ShowQueryTlb;
if FrmIsFocussed then begin
MainForm.actDatasetFirst.DataSource := DataSource1;
MainForm.actDatasetLast.DataSource := DataSource1;
MainForm.actDatasetInsert.DataSource := DataSource1;
MainForm.actDatasetDelete.DataSource := DataSource1;
MainForm.actDatasetPost.DataSource := DataSource1;
end;
MainForm.actSQLhelp.Enabled := (mysql_version >= 40100) and FrmIsFocussed;
if not FrmIsFocussed then begin
// Empty "connected" and "uptime"
MainForm.showstatus('', 1);
MainForm.showstatus('', 2);
MainForm.showstatus('', 3);
end;
tabEditors.tabVisible := inDataOrQueryTab;
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 : Integer;
rowsaffected : Integer;
SQLstart : Integer;
SQLend : Integer;
SQLscriptstart : Integer;
SQLscriptend : Integer;
SQLTime : Double;
LastVistaCheck : Cardinal;
VistaCheck : Boolean;
fieldcount : Integer;
recordcount : Integer;
ds : TDataSet;
begin
if ( CurrentLine ) then
begin
// Run current line
SQL := parseSQL( SynMemoQuery.LineText, Mainform.Delimiter, ProcessClientSQL );
end
else
if ( Selection ) then
begin
// Run selection
SQL := parseSQL( SynMemoQuery.SelText, Mainform.Delimiter, ProcessClientSQL );
end
else
begin
// Run all
SQL := parseSQL( SynMemoQuery.Text, Mainform.Delimiter, ProcessClientSQL );
end;
if ( SQL.Count = 0 ) then
begin
LabelResultinfo.Caption := '(nothing to do)';
Exit;
end;
// Destroy old data set.
ds := DataSource2.DataSet;
DataSource2.DataSet := nil;
if ds <> nil then ds.Close;
FreeAndNil( ds );
// set db-aware-component's properties..
DBMemo1.DataField := '';
DBMemo1.DataSource := DataSource2;
EDBImage1.DataField := '';
EDBImage1.DataSource := DataSource2;
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 );
gridQuery.DataSource.DataSet := ds;
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 ) +' field(s) / '+
FormatNumber( recordcount ) +' record(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();
Mainform.actExecuteQuery.Enabled := true;
Mainform.actExecuteSelection.Enabled := true;
// count chars:
SynMemoQuery.OnChange( Self );
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
// Re-link to datasource
DataSource2.DataSet := ds;
// Flick controls so that column resizing will work (?)
TZQuery(ds).EnableControls();
TZQuery(ds).DisableControls();
// resize all columns, if they are more wide than Mainform.DefaultColWidth
for i:=0 to gridQuery.Columns.count-1 do begin
if gridQuery.Columns[i].Width > prefDefaultColWidth then
gridQuery.Columns[i].Width := prefDefaultColWidth;
end;
end;
// Ensure controls are in a valid state
ValidateControls();
viewingdata := false;
if ( ds <> nil ) then
begin
TZQuery(ds).EnableControls();
end;
Screen.Cursor := crDefault;
MainForm.ShowStatus( STATUS_MSG_READY );
end;
end;
{**
Clicked somewhere in the field-list of the "Table"-tabsheet
}
procedure TMDIChild.ListColumnsStateChange(Sender: TBaseVirtualTree; Enter,
Leave: TVirtualTreeStates);
var
SomeSelected, OneFocused: Boolean;
begin
// some columns selected ?
OneFocused := Assigned(Sender.FocusedNode);
SomeSelected := Length(Sender.GetSortedSelection(False))>0;
// Toggle state of menuitems and buttons
Mainform.actDropFields.Enabled := SomeSelected;
Mainform.actEditField.enabled := OneFocused and SomeSelected;
menuRenameColumn.Enabled := OneFocused and SomeSelected;
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_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.SynMemoQueryChange(Sender: TObject);
var somechars : Boolean;
begin
somechars := SynMemoQuery.GetTextLen > 0;
Mainform.actExecuteQuery.Enabled := somechars;
Mainform.actExecuteSelection.Enabled := SynMemoQuery.SelAvail;
Mainform.actExecuteLine.Enabled := SynMemoQuery.LineText <> '';
Mainform.actSaveSQL.Enabled := somechars;
// Inserting file at cursor only makes sense with content
Mainform.actSaveSQLselection.Enabled := SynMemoQuery.SelAvail;
Mainform.actSaveSQLSnippet.Enabled := somechars;
Mainform.actSaveSQLSelectionSnippet.Enabled := SynMemoQuery.SelAvail;
Mainform.actClearQueryEditor.Enabled := somechars;
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);
ValidateControls;
end;
procedure TMDIChild.FormDeactivate(Sender: TObject);
begin
ValidateControls( False );
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;
// Assign images from main imagelist to speedbuttons
btnDataSorting.PngImage := Mainform.PngImageListMain.PngImages[73].PngImage;
btnColumnSelection.PngImage := Mainform.PngImageListMain.PngImages[73].PngImage;
//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
// because it also calls LoadDatabaseProperties and removes the node we're just editing
// So, refreshing the DB has to be done in the seperate event Tree.OnEdited
except
On E : Exception do
begin
MessageDlg( E.Message, mtError, [mbOK], 0 );
end;
end;
end;
{**
Refresh the active db tree node after a table has been renamed
See ListTablesNewText for comments
}
procedure TMDIChild.ListTablesEdited(Sender: TBaseVirtualTree; Node:
PVirtualNode; Column: TColumnIndex);
begin
RefreshTreeDB(ActiveDatabase);
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.gridDataTitleClick(Column: TColumn);
var
c : TOrderCol;
begin
c := TOrderCol.Create;
c.ColumnName := Column.FieldName;
HandleOrderColumns(c);
ViewData(Column.Grid);
end;
procedure TMDIChild.Filter1Click(Sender: TObject);
begin
// Set WHERE-Filter
pageCtlBottom.ActivePage := tabFilter;
SynMemoFilter.SetFocus;
end;
procedure TMDIChild.QuickFilterClick(Sender: TObject);
var
filter,value,column : String;
menuitem : TMenuItem;
begin
// Set filter for "where..."-clause
value := GetFieldValue(gridData.SelectedField);
menuitem := (Sender as TMenuItem);
column := mask(gridData.SelectedField.FieldName);
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;
pageCtlBottom.ActivePage := tabFilter;
SynMemoFilter.SetFocus;
SetFilter(self);
end;
procedure TMDIChild.btnBlobWordWrapClick(Sender: TObject);
begin
// linebreaks
WordWrap := not WordWrap;
btnBlobWordWrap.Down := WordWrap;
if btnBlobWordWrap.Down then
DBMemo1.Scrollbars := ssVertical
else
DBMemo1.Scrollbars := ssBoth;
end;
procedure TMDIChild.pageCtlEditorsChange(Sender: TObject);
begin
btnBlobCopy.Enabled := true;
btnBlobLoad.Enabled := not DBMemo1.ReadOnly;
btnBlobSave.Enabled := true;
if pageCtlEditors.ActivePage = tabEditorText then
begin
// MEMO tab activated.
btnBlobWordWrap.Enabled := true;
end;
if pageCtlEditors.ActivePage = tabEditorImage then
begin
// Image tab activated.
btnBlobWordWrap.Enabled := false;
end
end;
// Force a save of the user-edited contents of the BLOB editor.
procedure TMDIChild.SaveBlob;
begin
if not DBMemo1.Modified then exit;
if DBMemo1.ReadOnly then exit;
if Length(DBMemo1.DataField) = 0 then exit;
DBMemo1.DataSource.DataSet.Post;
//SendMessage(DBMemo1.Handle, CM_EXIT, 0, 0);
end;
procedure TMDIChild.btnBlobSaveClick(Sender: TObject);
var
grid: TTntDBGrid;
begin
// Todo: Weird fix, we probably shouldn't even be showing the button in the first place.
if Length(DBMemo1.DataField) = 0 then
begin
ShowMessage('Please choose a BLOB field in the data grid before using the "Save BLOB" function.');
exit;
end;
SaveBlob();
grid := ActiveGrid;
with TSaveDialog.Create(self) do begin
case pageCtlEditors.ActivePageIndex of
0 : begin
Filter := 'Text files (*.txt)|*.txt|All files (*.*)|*.*';
DefaultExt := 'txt';
end;
1 : begin
Filter := 'Bitmaps (*.bmp)|*.bmp|All files (*.*)|*.*';
DefaultExt := 'bmp';
end;
end;
FileName := grid.SelectedField.FieldName;
Options := [ofOverwritePrompt,ofEnableSizing];
if execute then try
Screen.Cursor := crHourGlass;
case pageCtlEditors.ActivePageIndex of
0 : SaveUnicodeFile(filename, GetVisualDataset.FieldByName(DBMemo1.DataField).AsWideString );
1 : EDBImage1.Picture.SaveToFile(filename);
end;
Screen.Cursor := crDefault;
except
Screen.Cursor := crDefault;
messagedlg('File could not be saved', mterror, [mbok], 0);
end;
end;
end;
procedure TMDIChild.btnBlobLoadClick(Sender: TObject);
begin
// Open BLOB-File
if not (DataSource1.State in [dsEdit, dsInsert]) then
try
DataSource1.Edit;
except
exit;
end;
with OpenDialog2 do begin
case pageCtlEditors.ActivePageIndex of
0 : Filter := 'Textfiles (*.txt)|*.txt|All files (*.*)|*.*';
1 : Filter := 'All Images (*.jpg, *.jpeg, *.bmp)|*.jpg;*.jpeg;*.bmp|JPEG (*.jpg, *.jpeg)|*.jpg;*.jpeg|Bitmap (*.bmp)|*.bmp|All files (*.*)|*.*';
end;
if execute then
case pageCtlEditors.ActivePageIndex of
0 : DBMemo1.Lines.LoadFromFile(filename);
1 : EDBImage1.Picture.LoadFromFile(filename);
end;
end;
end;
procedure TMDIChild.btnFilterLoadClick(Sender: TObject);
var
menuitem : Tmenuitem;
m,i : Integer;
_filename : String;
dontadd : Boolean;
begin
// open where-filter
With TOpenDialog.Create(self) do begin
Filter := 'Textfiles (*.txt)|*.txt|SQL-Files (*.sql)|*.sql|All files (*.*)|*.*';
if Execute and (Filename <> '') then begin
Screen.Cursor := crHourGlass;
try
SynMemoFilter.Lines.LoadFromFile(FileName);
except
MessageDLG('Error while reading file ''' + filename + '''', mtError, [mbOK], 0);
end;
Screen.Cursor := crDefault;
// don't get one filename more than one time
dontadd := false;
for m:=0 to popupFilterOpenFile.Items.Count-1 do begin
_filename := popupFilterOpenFile.Items[m].Caption;
i := 0;
while _filename[i] <> ' ' do
Inc( i );
_filename := Copy(_filename, i+1, Length(_filename));
_filename := Stringreplace(_filename, '&', '', [rfReplaceAll]);
if _filename = FileName then
dontadd := true;
end;
if not dontadd then begin
with TRegistry.Create do begin
openkey(REGPATH, true);
for i:=1 to 10 do begin
if not ValueExists('SQLWhereFile'+IntToStr(i)) then
break;
end;
while i > 1 do begin
WriteString(REGNAME_SQLWHEREFILE+IntToStr(i), ReadString(REGNAME_SQLWHEREFILE+IntToStr(i-1)));
dec(i);
end;
WriteString('SQLWhereFile1', FileName);
i := 1;
popupTreeView.Items.Clear;
while ValueExists(REGNAME_SQLWHEREFILE+IntToStr(i)) do begin
menuitem := Tmenuitem.Create(self);
menuitem.Caption := IntToStr(popupFilterOpenFile.Items.count+1) + ' ' + ReadString(REGNAME_SQLWHEREFILE+IntToStr(i));
menuitem.OnClick := LoadSQLWhereFile;
popupFilterOpenFile.Items.Add(menuitem);
Inc( i );
end;
Free;
end;
end;
end;
end;
end;
procedure TMDIChild.btnFilterSaveClick(Sender: TObject);
begin
// save where-filter
With TSaveDialog.Create(self) do begin
Filter := 'Textfiles (*.txt)|*.txt|SQL-Files (*.sql)|*.sql|All files (*.*)|*.*';
FileName := SelectedTable;
Options := [ofOverwritePrompt,ofEnableSizing];
DefaultExt := 'txt';
if Execute and (Filename <> '') then
try
SynMemoFilter.Lines.SaveToFile(FileName);
except
MessageDLG('Error while reading file ''' + filename + '''', mtError, [mbOK], 0);
end;
end;
end;
procedure TMDIChild.SetFilter(Sender: TObject);
var
where : String;
reg : TRegistry;
reg_value : String;
begin
// set filter for data-tab
where := trim(self.SynMemoFilter.Text);
// Store whereclause in Registry
reg := TRegistry.Create;
try
if prefRememberFilters then begin
reg.openkey( REGPATH + REGKEY_SESSIONS + FConn.Description, false );
reg_value := 'WHERECLAUSE_' + ActiveDatabase + '.' + SelectedTable;
if where <> '' then reg.WriteString( reg_value, where )
else if reg.ValueExists( reg_value ) then reg.DeleteValue( reg_value );
end;
finally
reg.Free;
end;
// store filter for browsing purpose:
if where <> '' then begin
if WhereFilters = nil then begin // Create filters-list
WhereFilters := TStringList.Create;
btnFilterPrevious.Enabled := true;
btnFilterNext.Enabled := true;
end;
if WhereFilters.IndexOf(where) > -1 then // Filter was previously used:
WhereFiltersIndex := WhereFilters.IndexOf(where)
else begin // New Filter:
WhereFilters.add(where);
WhereFiltersIndex := WhereFilters.count-1;
end;
ComboBoxWhereFilters.Items := WhereFilters;
ComboBoxWhereFilters.ItemIndex := WhereFiltersIndex;
end;
Filter1.checked := where <> '';
viewdata(Sender);
end;
procedure TMDIChild.ClearFilter(Sender: TObject);
begin
SynMemoFilter.Lines.Clear;
SetFilter(self);
end;
procedure TMDIChild.LoadSQLWhereFile(Sender: TObject);
var
filename : String;
i : Integer;
begin
// Load SQLWhere File from Menuitem
Screen.Cursor := crHourGlass;
filename := (sender as TMenuItem).Caption;
i := 0;
while filename[i] <> ' ' do
Inc( i );
filename := Copy(filename, i+1, Length(filename));
filename := Stringreplace(filename, '&', '', [rfReplaceAll]);
try
SynMemoFilter.Lines.LoadFromFile(filename);
except
MessageDLG('Error while reading file ''' + filename + '''', mtError, [mbOK], 0);
end;
Screen.Cursor := crDefault;
end;
procedure TMDIChild.DropFilter1Click(Sender: TObject);
begin
// Drop Filter
ClearFilter(Self);
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.gridDataColumnMoved(Sender: TObject; FromIndex,
ToIndex: Integer);
begin
// prevent OnTitleClick from being executed:
abort;
end;
procedure TMDIChild.gridMouseDown(Sender: TObject; Button: TMouseButton;
Shift: TShiftState; X, Y: Integer);
var
ed: TCustomEdit;
begin
if Button = mbRight then begin
// Select text in in-place editor to make popup menu copy and paste work.
(Sender as TDBGrid).EditorMode := true;
ed := TCustomEdit(FindControl(GetFocus()));
ed.SelectAll;
//debug('right-click catched, selected all text ''' + ed.SelText + '''.');
// Popup menu manually, mucking about with the grid causes it to stop doing it by itself.
if sender = gridData then begin
popupDataGrid.Popup(Mouse.CursorPos.X, Mouse.CursorPos.Y);
end else if sender = gridQuery then begin
popupResultGrid.Popup(Mouse.CursorPos.X, Mouse.CursorPos.Y);
end;
end else begin
inherited MouseDown(Button, Shift, X, Y);
end;
end;
procedure TMDIChild.controlsKeyUp(Sender: TObject; var Key: Word;
Shift: TShiftState);
var
Grid : TTNTDBGrid;
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 = DBMemo1 then
DBMemo1.SelectAll
else if Sender = EditDataSearch then
EditDataSearch.SelectAll;
end
// Enable copy + paste shortcuts in dbgrids
else if (Sender is TTNTDBGrid) and (not TTNTDBGrid(Sender).EditorMode) and (Shift = [ssCtrl]) then
begin
Grid := Sender as TTNTDBGrid;
// TODO: Clipboard.AsText is not Unicode safe!
if Key = Ord('C') then
CopyToClipboard(Grid.SelectedField.AsWideString)
else if Key = Ord('V') then begin
// Ensure dataset is in editing mode, otherwise we'll get an exception while
// trying to insert content into a cell.
// Hint: Dataset.Edit is not the same as Grid.EditorMode=True, it just enables
// internal editing of the record. The grid's editing mode is not activated here.
Grid.DataSource.DataSet.Edit;
CB := TUniClipboard.Create;
Grid.SelectedField.AsWideString := CB.AsWideString;
end
else if Key = Ord('X') then begin
CopyToClipboard(Grid.SelectedField.AsWideString);
Grid.DataSource.DataSet.Edit;
Grid.SelectedField.Text := '';
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.SynMemoQueryKeyUp(Sender: TObject; var Key: Word;
Shift: TShiftState);
begin
SynMemoQuery.OnChange(self);
controlsKeyUp( Sender, Key, Shift );
end;
procedure TMDIChild.SynMemoQueryMouseUp(Sender: TObject; Button: TMouseButton;
Shift: TShiftState; X, Y: Integer);
begin
SynMemoQuery.OnChange(Self);
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);
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 _GetFileSize( filename ) > LOAD_SIZE then
begin
msgtext := 'The file you are about to load is bigger than '+FormatByteNumber(LOAD_SIZE, 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
mrYes: // Run the file, don't load it into the editor
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;
mrNo:; // Do nothing, just load the file normally into the editor
mrCancel: // Cancel opening file
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);
except
on E: Exception do
begin
MessageDLG( 'Error while reading file ' + filename + ':' + CRLF + CRLF + E.Message, mtError, [mbOK], 0);
Mainform.AddOrRemoveFromQueryLoadHistory( filename, false );
Mainform.FillPopupQueryLoad;
Screen.Cursor := crDefault;
exit;
end;
end;
SynCompletionProposal1.Editor.UndoList.AddGroupBreak;
SynMemoQuery.BeginUpdate;
if ReplaceContent then
begin
SynMemoQuery.SelectAll;
end;
SynMemoQuery.SelText := filecontent;
SynMemoQuery.SelStart := SynMemoQuery.SelEnd;
SynMemoQuery.EndUpdate;
SynMemoQueryChange( self );
if Pos( DIRNAME_SNIPPETS, filename ) = 0 then
Mainform.AddOrRemoveFromQueryLoadHistory( filename, true );
Mainform.FillPopupQueryLoad;
Screen.Cursor := crDefault;
end;
procedure TMDIChild.btnFilterPreviousClick(Sender: TObject);
begin
// Go to previous filter
if WhereFiltersIndex > 0 then begin
dec(WhereFiltersIndex);
ComboBoxWhereFilters.ItemIndex := WhereFiltersIndex;
SynMemoFilter.Text := WhereFilters[WhereFiltersIndex];
end;
end;
procedure TMDIChild.btnFilterNextClick(Sender: TObject);
begin
// Go to next filter
if WhereFiltersIndex < WhereFilters.count-1 then begin
inc(WhereFiltersIndex);
ComboBoxWhereFilters.ItemIndex := WhereFiltersIndex;
SynMemoFilter.Text := WhereFilters[WhereFiltersIndex];
end;
end;
procedure TMDIChild.ComboBoxWhereFiltersChange(Sender: TObject);
begin
WhereFiltersIndex := ComboBoxWhereFilters.ItemIndex;
SynMemoFilter.Text := ComboBoxWhereFilters.Items[ComboBoxWhereFilters.ItemIndex];
end;
procedure TMDIChild.btnUnsafeEditClick(Sender: TObject);
var
confirmed: Boolean;
msg: String;
begin
msg :=
'This will remove the first NUL character _and all text following it_.' + #13#10 +
'All newlines will be converted to CRLF format.' + #13#10 +
'Are you sure?';
confirmed := MessageDlg(msg, mtConfirmation, mbYesNo, 0) = mrYes;
if not confirmed then exit;
DBMemo1.ReadOnly := false;
DBMemo1.Color := clWindow;
btnUnsafeEdit.Enabled := false;
DBMemo1.SetFocus;
// Sets the grid in edit-state so posting won't ignore changes
gridData.DataSource.Edit;
end;
procedure TMDIChild.DBGridDblClick(Sender: TObject);
begin
// If grid is not empty...
if (Sender as TTntDBGrid).SelectedField <> nil then begin
// Set focus on DBMemo when user doubleclicks a (MEMO)-cell
if (sender as TTntDBGrid).SelectedField.IsBlob and (pageCtlEditors.ActivePage = tabEditorText) then begin
pageCtlBottom.ActivePage := tabEditors;
DBMemo1.SetFocus;
end;
end;
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.GridDrawColumnCell(Sender: TObject; const Rect: TRect;
DataCol: Integer; Column: TColumn; State: TGridDrawState);
var
Grid : TTntDBGrid;
begin
Grid := Sender as TTntDBGrid;
if (Grid.Fields[DataCol] <> nil) and Grid.Fields[DataCol].IsNull then
begin
if (Grid.SelectedRows.IndexOf(Grid.DataSource.DataSet.Bookmark) <> -1) or (gdSelected in State) then
Grid.Canvas.Font.Color := clHighLightText
else
Grid.Canvas.Font.Color := COLOR_NULLVALUE;
// Just use the changed font color for (MEMO) and (BLOB) cells
if Grid.Fields[DataCol].DataType in [ftWideMemo, ftBlob] then
Grid.DefaultDrawColumnCell(Rect, DataCol, Grid.Columns[DataCol], State)
// ... while the natively displayed datatypes get a grey (NULL)
else
Grid.Canvas.TextOut(Rect.Left+2, Rect.Top+2, '(NULL)');
end;
end;
procedure TMDIChild.DBMemo1Exit(Sender: TObject);
var
ds: TDataSource;
begin
// Save changes. Fixes issue #1538021.
ds := DBMemo1.DataSource;
if ds.State in [dsEdit, dsInsert] then begin
ds.DataSet.Post;
end;
end;
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 (gridData.SelectedField <> nil) then
begin
DataInsertDateTime.Enabled := gridData.SelectedField.DataType in [ftString, ftDatetime, ftDate, ftTime];
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(gridData.SelectedField.FieldName);
// 1. block: include selected columnname and value from datagrid in caption
value := sstr(GetFieldValue(gridData.SelectedField), 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);
DataSource1.Edit;
gridData.SelectedField.AsString := d;
end;
procedure TMDIChild.btnBlobCopyClick(Sender: TObject);
begin
if dbmemo1.DataField = '' then exit;
SaveBlob;
case pageCtlEditors.ActivePageIndex of
0 : CopyToClipboard(GetVisualDataset.FieldByName(DBMemo1.DataField).AsWideString);
1 : EDBImage1.CopyToClipboard;
end;
end;
procedure TMDIChild.setNULL1Click(Sender: TObject);
begin
if not (DataSource1.State in [dsEdit, dsInsert]) then
DataSource1.Edit;
TZQuery(DataSource1.DataSet).SetFieldData(gridData.SelectedField, nil);
end;
procedure TMDIChild.ZQueryGridAfterPost(DataSet: TDataSet);
var
affected_rows_str, msg : String;
affected_rows_int : Int64;
begin
affected_rows_int := FMysqlConn.Connection.GetAffectedRowsFromLastPost;
affected_rows_str := FormatNumber( affected_rows_int );
if affected_rows_int = 0 then
begin
LogSQL( 'Affected rows: ' + affected_rows_str );
// Refresh grid to show the user that no change has been applied
GetVisualDataset().Refresh;
msg := 'Warning: No row was affected by the last update.' + CRLF + CRLF
+ 'This is most likely caused by entering data which the MySQL-server has converted silently.' + CRLF
+ 'For example when you enter a date like "0000-01-01" (applies only to newer MySQL-versions).';
LogSQL( msg );
MessageDlg( msg, mtWarning, [mbOK], 0);
end;
if affected_rows_int > 1 then
begin
LogSQL( 'Affected rows: ' + affected_rows_str );
// Refresh grid to show the user which values the other records got
GetVisualDataset().Refresh;
msg := 'Warning: Consistency problem detected.' + CRLF + CRLF
+ 'The last query affected ' + affected_rows_str + ' rows, when it should have touched only 1 row!'
+ 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;
// Display row count and filter-matchings above dbgrid
DisplayRowCountStats(DataSet);
end;
procedure TMDIChild.ZQueryGridBeforeClose(DataSet: TDataSet);
begin
// unassign data-aware controls
DBMemo1.DataField := '';
EDBImage1.DataField := '';
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: TDataSet;
begin
case PageControlMain.ActivePageIndex of
3: Result := gridData.DataSource.DataSet;
4: Result := gridQuery.DataSource.DataSet;
else
Result := nil;
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;
// Resize image to fit
procedure TMDIChild.ResizeImageToFit;
var
height_needed : Cardinal;
begin
// Abort zooming if it's not an image or image-tab is sized to minimum size
if (EDBImage1.Picture.Width < 1) or (ScrollBox1.Height < 1) then
exit;
// Use all height we can get, but only as much we need to display without zooming
if EDBImage1.Picture.Height > Scrollbox1.Height then
height_needed := Scrollbox1.Height
else
height_needed := EDBImage1.Picture.Height;
// Set size
EDBImage1.Height := height_needed;
EDBImage1.Width := MulDiv(height_needed, EDBImage1.Picture.Width, EDBImage1.Picture.Height);
MainForm.showstatus('Image: ' + IntToStr( EDBImage1.Picture.width)
+ ' x ' + IntToStr( EDBImage1.Picture.Height ) + ' pixel, '
+ 'zoomed to ' + IntToStr(Round( 100 / EDBImage1.Picture.Height * EDBImage1.Height )) + '%',
0
);
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,nil,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,nil,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;
procedure TMDIChild.splitterTopBottomMoved(Sender: TObject);
begin
ResizeImageToFit;
end;
{***
Used to catch when the highlighted row in a grid changes.
Possibly the AfterScroll event would be better suited for the purpose?
*}
procedure TMDIChild.DataSourceDataChange(Sender: TObject; Field: TField);
begin
//debug('DataSourceDataChange()');
// Avoid calling when switching data source to another TDataset.
if not viewingdata then GridHighlightChanged(Sender);
end;
procedure TMDIChild.DBGridColEnter(Sender: TObject);
begin
//debug('DBGridColEnter()');
GridHighlightChanged(Sender);
end;
procedure TMDIChild.GridHighlightChanged(Sender: TObject);
var
grid: TTntDBGrid;
ds: TDataSource;
hasNull: Boolean;
hasOddNewlines: Boolean;
s: String;
begin
// Current highlighted row or column in a grid has changed.
// Happens twice (row, then column) if neither row nor column match previously selected field.
grid := ActiveGrid;
ds := grid.DataSource;
if grid.SelectedField = nil then exit;
debug('GridHighlightChanged');
if DBMemo1.DataSource <> ds then
begin
DBMemo1.DataField := '';
DBMemo1.DataSource := ds;
EDBImage1.DataField := '';
EDBImage1.DataSource := ds;
end;
if grid.SelectedField.IsBlob then
begin
// Connect the BLOB-components to this field
DBMemo1.DataField := grid.SelectedField.FieldName;
// Hack: If 8 bytes or less, don't try to interpret as an image.
// Fixes BIT fields, which EDBImage otherwise think contains icons.
if Length(grid.SelectedField.AsString) > 8 then begin
EDBImage1.DataField := grid.SelectedField.FieldName;
end;
// If user is already editing then we're here by accident.
if not DBMemo1.Focused then begin
// Disable text editor if there's binary data or odd newlines in the field,
// since the text editor may/will silently corrupt it if used.
hasNull := hasNullChar(DBMemo1.Field.AsString);
hasOddNewlines := hasIrregularNewlines(DBMemo1.Field.AsString);
DBMemo1.ReadOnly := hasNull or hasOddNewlines;
btnUnsafeEdit.Enabled := hasNull or hasOddNewlines;
if btnUnsafeEdit.Enabled then
begin
s := 'Cannot edit text because BLOB contains ';
if hasNull then s := s + 'NUL characters';
if hasOddNewlines then begin
if hasNull then s := s + ' and ';
s := s + 'non-CRLF newlines';
end;
s := s + '. Click here to remove NUL plus following text and convert all newlines to CRLF format.';
end
else
begin
s := 'No irregular characters found in BLOB. It is safe to edit this text.';
end;
btnUnsafeEdit.Hint := s;
end;
// Ensure visibility of the editors
pageCtlBottom.ActivePage := tabEditors;
// Detect if we have picture-data in this BLOB and
// if yes, bring the viewer in the BLOB-editor to the front
if grid.Focused then begin
if EDBImage1.Picture.Height > 0 then begin
pageCtlEditors.ActivePage := tabEditorImage
end else begin
pageCtlEditors.ActivePage := tabEditorText;
end;
end;
ResizeImageToFit;
end
else
begin
// No BLOB selected, so disconnect the Blob-components
// from any field
DBMemo1.ReadOnly := true;
DBMemo1.DataField := '';
EDBImage1.DataField := '';
end;
// Indicate the ReadOnly-state of the BLOB to the user
if DBMemo1.ReadOnly then
begin
DBMemo1.Color := clInactiveCaptionText;
end
else
begin
DBMemo1.Color := clWindow;
end;
PageCtlEditorsChange(self);
end;
// Search with searchbox
procedure TMDIChild.ButtonDataSearchClick(Sender: TObject);
var
i : Integer;
where : String;
begin
if gridData.DataSource.DataSet = nil then Exit;
if not gridData.DataSource.DataSet.Active then Exit;
where := '';
if EditDataSearch.text <> '' then
begin
for i:=0 to gridData.FieldCount-1 do
begin
if where <> '' then
where := where + CRLF + ' OR ';
where := where + mask(gridData.Fields[i].FieldName) + ' LIKE ''%' + esc( EditDataSearch.text, true ) + '%''';
end;
if CheckBoxDataSearch.Checked then
where := 'NOT (' + where + ')';
end;
SynMemoFilter.Text := where;
SetFilter(self);
end;
// Searchbox focused
procedure TMDIChild.EditDataSearchEnter(Sender: TObject);
begin
ButtonDataSearch.Default := true;
EditDataSearch.SelectAll;
end;
// Searchbox unfocused
procedure TMDIChild.EditDataSearchExit(Sender: TObject);
begin
ButtonDataSearch.Default := false;
end;
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: TTntDBGrid;
begin
Result := nil;
if PageControlMain.ActivePage = tabData then Result := gridData;
if PageControlMain.ActivePage = tabQuery then Result := gridQuery;
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
}
function TMDIChild.GetCalculatedLimit( Table: String ): Int64;
var
AvgRowSize, RecordCount : 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;
// round to nearest value when deciding limit
ROUNDING: Integer = 1000;
begin
result := -1;
try
ds := GetResults('SHOW TABLE STATUS LIKE ' + esc(Table));
if ds = nil then exit;
if ds.FieldByName('Avg_row_length').IsNull then begin
// Guessing row size and count for views, fixes bug #346
AvgRowSize := ROW_SIZE_GUESS + ROW_SIZE_OVERHEAD;
RecordCount := MaxInt;
end else begin
AvgRowSize := MakeInt( ds.FieldByName( 'Avg_row_length' ).AsString ) + ROW_SIZE_OVERHEAD;
RecordCount := MakeInt( ds.FieldByName( 'Rows' ).AsString );
end;
if AvgRowSize * RecordCount > LOAD_SIZE then
begin
result := Trunc( LOAD_SIZE / AvgRowSize );
result := (Trunc(result / ROUNDING) + 1) * ROUNDING;
if result >= RecordCount then result := -1;
end;
ds.Close;
FreeAndNil(ds);
finally
debug( 'GetCalculatedLimit: ' + formatnumber(result) );
end;
end;
{**
Column selection for datagrid
}
procedure TMDIChild.btnDataClick(Sender: TObject);
var
btn : TSpeedButton;
frm : TForm;
begin
btn := (Sender as TSpeedButton);
if btn.Down then
begin
// Create the desired form
if btn = btnColumnSelection then
frm := TColumnSelectionForm.Create(self)
else if btn = btnDataSorting 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;
// Display form
frm.Show;
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 <20>nto 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
SynMemoQueryChange(self);
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;
{***
Callback procedure able to handle client-side SQL statements such as DELIMITER
@param command The command/option to be called
@param parameter The parameter of command
}
procedure TMDIChild.ProcessClientSQL(command: WideString; parameter: WideString);
begin
if command = 'DELIMITER' then
Mainform.ComboBoxQueryDelimiterAdd(parameter)
else if command = 'CLIENTSQL_ERROR' then begin
LogSQL( parameter, True );
if Mainform.actQueryStopOnErrors.Checked then
raise Exception.Create(parameter);
end;
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;
{**
popupFilter displays or a key was pressed which is assigned to
it as a shortcut
}
procedure TMDIChild.popupFilterPopup(Sender: TObject);
var
somechars: Boolean;
begin
// Sets cursor into memo and activates TAction(s) like paste
SynMemoFilter.SetFocus;
somechars := SynMemoFilter.GetTextLen > 0;
// Inserting file at cursor only makes sense with content
Mainform.actClearFilterEditor.Enabled := somechars;
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;
{**
One or more files from explorer or somewhere else were dropped onto the
filter editor - load the contents of the first file
}
procedure TMDIChild.SynMemoFilterDropFiles(Sender: TObject; X, Y: Integer;
AFiles: TWideStrings);
begin
if fileExists(AFiles[0]) then begin
Screen.Cursor := crHourGlass;
try
SynMemoFilter.Lines.LoadFromFile(AFiles[0]);
except on E: Exception do
MessageDLG( 'Error while reading file ' + AFiles[0] + ':' + CRLF + CRLF + E.Message, mtError, [mbOK], 0);
end;
Screen.Cursor := crDefault;
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: 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
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
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;
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...' );
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 "<db name>.<table name>" seems to make more sense..
SynSQLSyn1.TableNames.AddStrings( Databases );
SynSQLSyn1.TableNames.EndUpdate;
MainForm.ShowStatus( STATUS_MSG_READY );
Screen.Cursor := crDefault;
end;
// DB node expanding
1: begin
ds := FetchDbTableList(Databases[Node.Index]);
ChildCount := ds.RecordCount;
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.ListColumnsDblClick(Sender: TObject);
begin
Mainform.actEditField.Execute;
end;
end.
Reference in New Issue View Git Blame Copy Permalink