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HeidiSQL/source/childwin.pas
Ansgar Becker e1d76db62d Suppress exception message about not finding the ActiveDatabase node in dbtree when 
a) option "Remember last used database" is active
b) the last used db was dropped externally or
   the session was just opened with "OnlyDBs" in place and the last db is not contained in this list.
2007-09-17 23:23:29 +00:00

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unit Childwin;
// -------------------------------------
// MDI-Child-Window
// -------------------------------------
interface
uses
Synchronization,
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, smdbgrid, Tabs,
VirtualTrees;
type
TMDIChild = class(TForm)
Panel1: TPanel;
DBtree: TTreeView;
Splitter1: TSplitter;
TableShow: TPanel;
PageControlMain: TPageControl;
tabData: TTabSheet;
tabDatabase: TTabSheet;
Splitter2: TSplitter;
tabQuery: TTabSheet;
popupTreeView: TPopupMenu;
Drop1: TMenuItem;
pnlDatabaseTop: TPanel;
tabTable: TTabSheet;
pnlTableTop: TPanel;
popupDbGrid: TPopupMenu;
menuviewdata: TMenuItem;
menuproperties: TMenuItem;
menuinsert: 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;
Panel4: TPanel;
pnlDataTop: TPanel;
pnlQueryTop: 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;
Insertrecord2: TMenuItem;
MenuAddField: TMenuItem;
MenuEditField: TMenuItem;
popupResultGrid: TPopupMenu;
Copyrecords1: TMenuItem;
CopyasCSVData1: TMenuItem;
N9: TMenuItem;
LabelResultinfo: TLabel;
MenuAdvancedProperties: TMenuItem;
N10: TMenuItem;
MenuRenameTable: TMenuItem;
MenuViewBlob: TMenuItem;
TimerConnected: TTimer;
N12: TMenuItem;
MenuTableComment: TMenuItem;
popupSqlLog: TPopupMenu;
Clear2: TMenuItem;
Copy1: TMenuItem;
N13: TMenuItem;
EditQuery1: TMenuItem;
Markall3: TMenuItem;
N15: TMenuItem;
MenuOptimize: TMenuItem;
MenuCheck: TMenuItem;
MenuAnalyze: TMenuItem;
MenuRepair: TMenuItem;
More1: TMenuItem;
TimerConnectErrorCloseWindow: TTimer;
PopupMenuDropTable: TMenuItem;
N17: TMenuItem;
pnlTableToolbar: TPanel;
ListColumns: TVirtualStringTree;
CopycontentsasHTML1: TMenuItem;
CopycontentsasHTML2: TMenuItem;
Copy3: TMenuItem;
Paste2: TMenuItem;
N4: TMenuItem;
gridData: TSMDBGrid;
DataSource1: TDataSource;
gridQuery: TSMDBGrid;
DataSource2: TDataSource;
Copytableas1: TMenuItem;
Filter1: TMenuItem;
MenuLimit: TMenuItem;
Delete1: TMenuItem;
N6: TMenuItem;
QF1: TMenuItem;
QF2: TMenuItem;
QuickFilter1: TMenuItem;
QF3: TMenuItem;
QF4: TMenuItem;
N7: TMenuItem;
DropFilter1: TMenuItem;
Table1: TMenuItem;
popupFilterOpenFile: TPopupMenu;
OpenDialog2: TOpenDialog;
PrintList2: TMenuItem;
PrintList3: TMenuItem;
PrintList4: TMenuItem;
N1: TMenuItem;
MenuChangeType: TMenuItem;
MenuChangeType2: TMenuItem;
MenuChangeType3: TMenuItem;
MenuChangeTypeOther: TMenuItem;
N8: TMenuItem;
MenuChangeType1: TMenuItem;
MenuChangeType4: TMenuItem;
MenuCopyTable: TMenuItem;
PageControlBottom: TPageControl;
tabSQLLog: TTabSheet;
tabBlobEditor: TTabSheet;
tabFilter: TTabSheet;
SynMemoSQLLog: TSynMemo;
ToolBar3: TToolBar;
btnBlobWordWrap: TToolButton;
btnBlobLoad: TToolButton;
btnBlobSave: TToolButton;
PageControlBlobEditors: TPageControl;
tabBlobEditorText: TTabSheet;
DBMemo1: TDBMemo;
tabBlobEditorImage: TTabSheet;
SynMemoFilter: TSynMemo;
N18: TMenuItem;
MenuChangeType5: TMenuItem;
selectall1: TMenuItem;
MenuAutoupdate: TMenuItem;
TimerHost: TTimer;
Set1: TMenuItem;
EnableAutoRefresh: TMenuItem;
DisableAutoRefresh: TMenuItem;
Saveastextfile1: TMenuItem;
QF7: TMenuItem;
QF5: TMenuItem;
QF6: TMenuItem;
pnlQueryToolbar: TPanel;
ToolBarQuery: TToolBar;
btnQueryRun: TToolButton;
btnQueryRunSelected: TToolButton;
btnQueryLoad: TToolButton;
btnQuerySave: TToolButton;
btnQueryFind: TToolButton;
PanelCharsInQueryWindow: TPanel;
btnQueryStopOnErrors: TToolButton;
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;
btnQueryReplace: TToolButton;
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;
DefaultColumnLayout1: TMenuItem;
N20: TMenuItem;
SynCompletionProposal1: TSynCompletionProposal;
popupQueryLoad: TPopupMenu;
OpenDialogSQLFile: TOpenDialog;
SaveDialogSQLFile: TSaveDialog;
btnQuerySaveSnippet: TToolButton;
FindDialogQuery: TFindDialog;
SynEditSearch1: TSynEditSearch;
ReplaceDialogQuery: TReplaceDialog;
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: TSpeedButton;
btnAltTerminator: TToolButton;
pnlQueryHelpers: TPanel;
tabsetQueryHelpers: TTabSet;
lboxQueryHelpers: TListBox;
popupQuery: TPopupMenu;
MenuRun: TMenuItem;
MenuRunSelection: TMenuItem;
MenuRunLine: TMenuItem;
MenuSetFilter: TMenuItem;
MenuItem1: TMenuItem;
menucopy: TMenuItem;
menupaste: TMenuItem;
menuload: TMenuItem;
menusave: TMenuItem;
menuclear: TMenuItem;
MenuFind: TMenuItem;
MenuReplace: TMenuItem;
MenuItem2: TMenuItem;
lblDataTop: TLabel;
btnDataSorting: TSpeedButton;
spltQueryHelpers: TSplitter;
menuRenameColumn: TMenuItem;
N22: TMenuItem;
N23: TMenuItem;
menuInsertFileAtCursor: TMenuItem;
menuSaveSelectionToFile: TMenuItem;
menuSaveAsSnippet: TMenuItem;
menuSaveSelectionAsSnippet: TMenuItem;
popupQueryHelpers: TPopupMenu;
menuDeleteSnippet: TMenuItem;
menuHelp: TMenuItem;
menuLoadSnippet: TMenuItem;
menuInsertSnippetAtCursor: TMenuItem;
menuExplore: TMenuItem;
PopupMenuCreateTable: TMenuItem;
pnlDatabaseToolbar: TPanel;
tlbDataLeft2: TToolBar;
btnDbInsertRecord: TToolButton;
tlbDataLeft1: TToolBar;
btnDbViewData: TToolButton;
btnDbProperties: TToolButton;
btnDbEmptyTable: TToolButton;
btnDbDropTable: TToolButton;
btnDbCopyTable: TToolButton;
tlbTableLeft1: TToolBar;
btnTableViewData: TToolButton;
btnTableEditField: TToolButton;
btnTableAddField: TToolButton;
btnTableDropField: TToolButton;
btnTableManageIndexes: TToolButton;
tlbTableLeft2: TToolBar;
btnTableInsertRecord: TToolButton;
menuSQLhelp: TMenuItem;
N24: TMenuItem;
menuSQLhelpData: TMenuItem;
procedure DBtreeChanging(Sender: TObject; Node: TTreeNode;
var AllowChange: Boolean);
procedure menuRenameColumnClick(Sender: TObject);
procedure ListColumnsNewText(Sender: TBaseVirtualTree; Node: PVirtualNode;
Column: TColumnIndex; NewText: WideString);
procedure menuclearClick(Sender: TObject);
procedure popupQueryPopup(Sender: TObject);
procedure lboxQueryHelpersClick(Sender: TObject);
procedure lboxQueryHelpersDblClick(Sender: TObject);
procedure tabsetQueryHelpersChange(Sender: TObject; NewTab: Integer;
var AllowChange: Boolean);
procedure btnTableViewDataClick(Sender: TObject);
procedure btnDbViewDataClick(Sender: TObject);
procedure btnDataClick(Sender: TObject);
procedure DBtreeExpanding(Sender: TObject; Node: TTreeNode;
var AllowExpansion: Boolean);
procedure ListTablesChange(Sender: TBaseVirtualTree; Node: PVirtualNode);
procedure ListColumnsChange(Sender: TBaseVirtualTree; Node: PVirtualNode);
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 CallSQLHelp(Sender: TObject);
procedure CallSQLHelpWithKeyword(keyword: String);
procedure ManageIndexes1Click(Sender: TObject);
procedure ZQueryGridAfterPost(DataSet: TDataSet);
procedure btnQueryReplaceClick(Sender: TObject);
procedure ReplaceDialogQueryReplace(Sender: TObject);
procedure ReplaceDialogQueryFind(Sender: TObject);
procedure FindDialogQueryFind(Sender: TObject);
procedure btnQuerySaveSnippetClick(Sender: TObject);
procedure SynCompletionProposal1AfterCodeCompletion(Sender: TObject;
const Value: String; Shift: TShiftState; Index: Integer; EndToken: Char);
procedure btnDbPropertiesClick(Sender: TObject);
procedure popupDbGridPopup(Sender: TObject);
procedure SynCompletionProposal1CodeCompletion(Sender: TObject;
var Value: String; Shift: TShiftState; Index: Integer; EndToken: Char);
procedure SynCompletionProposal1Execute(Kind: TSynCompletionType;
Sender: TObject; var CurrentInput: String; var x, y: Integer;
var CanExecute: Boolean);
procedure PerformConnect;
procedure ToolButton4Click(Sender: TObject);
procedure FormClose(Sender: TObject; var Action: TCloseAction);
procedure ReadDatabasesAndTables(Sender: TObject);
procedure DBtreeChange(Sender: TObject; Node: TTreeNode);
procedure pcChange(Sender: TObject);
procedure ValidateControls(FrmIsFocussed: Boolean = true);
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 MenuViewDataClick(Sender: TObject);
procedure MenuRefreshClick(Sender: TObject);
procedure EmptyTable(Sender: TObject);
procedure DropDB(Sender: TObject);
procedure LogSQL(msg: String = ''; comment: Boolean = true );
procedure ShowVariablesAndProcesses(Sender: TObject);
procedure CreateDatabase(Sender: TObject);
procedure KillProcess(Sender: TObject);
procedure PageControlHostChange(Sender: TObject);
procedure ExecSQLClick(Sender: TObject; Selection: Boolean = false;
CurrentLine: Boolean=false);
procedure DropField(Sender: TObject);
procedure SynMemoQueryChange(Sender: TObject);
procedure CreateTable(Sender: TObject);
procedure TimerHostUptimeTimer(Sender: TObject);
procedure FormActivate(Sender: TObject);
procedure FormDeactivate(Sender: TObject);
procedure FormShow(Sender: TObject);
procedure UpdateField(Sender: TObject);
procedure MenuAdvancedPropertiesClick(Sender: TObject);
procedure ListTablesNewText(Sender: TBaseVirtualTree; Node: PVirtualNode;
Column: TColumnIndex; NewText: WideString);
procedure MenuRenameTableClick(Sender: TObject);
procedure MenuViewBlobClick(Sender: TObject);
procedure TimerConnectedTimer(Sender: TObject);
procedure Clear1Click(Sender: TObject);
procedure MenuTableCommentClick(Sender: TObject);
procedure Clear2Click(Sender: TObject);
procedure EditQuery1Click(Sender: TObject);
procedure Markall3Click(Sender: TObject);
procedure ReadWindowOptions;
procedure More1Click(Sender: TObject);
procedure MenuOptimizeClick(Sender: TObject);
procedure MenuCheckClick(Sender: TObject);
procedure MenuAnalyzeClick(Sender: TObject);
procedure MenuRepairClick(Sender: TObject);
procedure ListTablesDblClick(Sender: TObject);
procedure TimerConnectErrorCloseWindowTimer(Sender: TObject);
procedure gridDataTitleClick(Column: TColumn);
procedure Filter1Click(Sender: TObject);
procedure MenuLimitClick(Sender: TObject);
procedure Delete1Click(Sender: TObject);
procedure QuickFilterClick(Sender: TObject);
procedure btnBlobWordWrapClick(Sender: TObject);
procedure PageControlBlobEditorsChange(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 MenuChangeTypeClick(Sender: TObject);
procedure MenuChangeTypeOtherClick(Sender: TObject);
procedure InsertRecord(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: TStrings);
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 btnQueryFindClick(Sender: TObject);
procedure btnQuerySaveClick(Sender: TObject);
procedure btnQueryLoadClick(Sender: TObject);
procedure btnFilterPreviousClick(Sender: TObject);
procedure btnFilterNextClick(Sender: TObject);
procedure ComboBoxWhereFiltersChange(Sender: TObject);
procedure btnQueryStopOnErrorsClick(Sender: TObject);
procedure DBGridDblClick(Sender: TObject);
procedure SaveDialogExportDataTypeChange(Sender: TObject);
procedure DBGridGetCellParams(Sender: TObject; Field: TField;
AFont: TFont; var Background: TColor; Highlight: Boolean);
procedure popupDataGridPopup(Sender: TObject);
procedure InsertDate(Sender: TObject);
procedure btnBlobCopyClick(Sender: TObject);
procedure setNULL1Click(Sender: TObject);
procedure MenuAddFieldClick(Sender: TObject);
procedure ZQueryGridBeforeClose(DataSet: TDataSet);
function GetNamedVar( SQLQuery: String; x: String;
HandleErrors: Boolean = false; DisplayErrors: Boolean = false ) : String;
function GetVar( SQLQuery: String; x: Integer = 0;
HandleErrors: Boolean = false; DisplayErrors: Boolean = false ) : String;
function GetResults( SQLQuery: String;
HandleErrors: Boolean = false; DisplayErrors: Boolean = false ): TDataSet;
function GetCol( SQLQuery: String; x: Integer = 0;
HandleErrors: Boolean = false; DisplayErrors: Boolean = false ) : TStringList;
procedure ZSQLMonitor1LogTrace(Sender: TObject; Event: TZLoggingEvent);
procedure ResizeImageToFit;
procedure Splitter2Moved(Sender: TObject);
procedure DataSourceDataChange(Sender: TObject; Field: TField);
procedure DBGridColEnter(Sender: TObject);
procedure ZQuery1EditError(DataSet: TDataSet; E: EDatabaseError;
var Action: TDataAction);
procedure ButtonDataSearchClick(Sender: TObject);
procedure EditDataSearchEnter(Sender: TObject);
procedure EditDataSearchExit(Sender: TObject);
procedure MenuTablelistColumnsClick(Sender: TObject);
function mask(str: String) : String;
procedure CheckConnection();
procedure QueryLoad( filename: String; ReplaceContent: Boolean = true );
procedure AddOrRemoveFromQueryLoadHistory( filename: String;
AddIt: Boolean = true; CheckIfFileExists: Boolean = true );
procedure popupQueryLoadClick( sender: TObject );
procedure FillPopupQueryLoad;
procedure PopupQueryLoadRemoveAbsentFiles( sender: TObject );
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 menuInsertFileAtCursorClick(Sender: TObject);
procedure menuInsertSnippetAtCursorClick(Sender: TObject);
procedure menuLoadSnippetClick(Sender: TObject);
procedure menuSQLhelpClick(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);
private
strHostRunning : String;
strHostNotRunning : String;
uptime : Integer;
time_connected : Cardinal;
OnlyDBs,
OnlyDBs2 : TStringList; // used on connecting
viewingdata : Boolean;
WhereFilters : TStringList;
WhereFiltersIndex : Integer;
StopOnErrors, WordWrap : Boolean;
FMysqlConn : TMysqlConn;
FConn : TOpenConnProf;
QueryRunningInterlock : Integer;
lastUsedDB : String;
UserQueryFired : Boolean;
UserQueryFiring : Boolean;
CachedTableLists : TStringList;
QueryHelpersSelectedItems : Array[0..3] of Integer;
ListTablesColumnNames : TStringList;
function GetQueryRunning: Boolean;
procedure SetQueryRunning(running: Boolean);
procedure GridHighlightChanged(Sender: TObject);
procedure SaveBlob;
function GetActiveGrid: TSMDBGrid;
procedure WaitForQueryCompletion(WaitForm: TForm);
function RunThreadedQuery(AQuery : String) : TMysqlQuery;
procedure DisplayRowCountStats(ds: TDataSet);
procedure insertFunction(Sender: TObject);
procedure SetupListTablesHeader;
function GetActiveDatabase: string;
function GetSelectedTable: string;
procedure SetSelectedDatabase(db: string);
procedure SetSelectedTable(table: string);
public
TemporaryDatabase : String;
dataselected : Boolean;
editing : Boolean;
mysql_version : Integer;
tnodehost : TTreeNode;
Description : String;
DBRightClickSelectedItem : TTreeNode; // TreeNode for dropping with right-click
VTRowDataListVariables,
VTRowDataListProcesses,
VTRowDataListCommandStats,
VTRowDataListTables,
VTRowDataListColumns : TVTreeDataArray;
FProgressForm : TFrmQueryProgress;
// Variables set by preferences dialog
prefRememberFilters,
prefConvertHTMLEntities : Boolean;
prefLogsqlnum,
prefDefaultColWidth : Integer;
prefCSVSeparator,
prefCSVEncloser,
prefCSVTerminator : String[10];
prefDataNullBackground : TColor;
procedure Init(AConn : POpenConnProf; AMysqlConn : TMysqlConn);
//procedure HandleQueryNotification(ASender : TMysqlQuery; AEvent : Integer);
function GetVisualDataset() : TDataSet;
function ExecUpdateQuery(sql: string; HandleErrors: Boolean = false; DisplayErrors: Boolean = false): Int64;
function ExecSelectQuery(sql: string; HandleErrors: Boolean = false; DisplayErrors: Boolean = false): TDataSet;
procedure ExecUseQuery(db: string; HandleErrors: Boolean = false; DisplayErrors: Boolean = false);
property FQueryRunning: Boolean read GetQueryRunning write SetQueryRunning;
property ActiveGrid: TSMDBGrid 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;
procedure ClearAllTableLists;
procedure PopulateTreeTableList(tndb: TTreeNode = nil; ForceRefresh: Boolean = false);
procedure EnsureDatabase;
procedure TestVTreeDataArray( P: PVTreeDataArray );
function GetVTreeDataArray( VT: TBaseVirtualTree ): PVTreeDataArray;
end;
type
// Represents errors already "handled" (shown to user),
// which can thus safely be ignored.
THandledSQLError = class(Exception)
end;
// -----------------------------------------------------------------------------
implementation
uses
Main, createtable, fieldeditor, tbl_properties, tblcomment,
optimizetables, copytable, sqlhelp, printlist,
column_selection, data_sorting, runsqlfile, mysql,
Registry, createdatabase;
{$I const.inc}
{$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
charset : String;
v : String[10];
versions : TStringList;
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
}
v := GetVar( 'SELECT VERSION()' );
versions := explode( '.', v );
mysql_version := MakeInt( versions[0] ) * 10000 + MakeInt( versions[1] ) *
100 + MakeInt( versions[2] );
strHostRunning := FConn.MysqlParams.Host + ' running MySQL-Version ' + v +
' / Uptime: %s';
strHostNotRunning := 'Disconnected from ' + FConn.MysqlParams.Host + '.';
// On Re-Connection, try to restore lost properties
{***
SET NAMES statement available since MySQL 4.1.0 .
Older versions throw a SQL-error: "Unknown system variable 'NAMES'"
@see http://lists.phpbar.de/pipermail/opengeodb/2005-September/002455.html
}
if ( mysql_version >= 40100 ) then
begin
charset := ConvertWindowsCodepageToMysqlCharacterSet( GetACP() );
if ( charset = '' ) then
begin
LogSQL( 'Could not find a MySQL character set to match the current ' +
'Windows ANSI codepage.', true );
LogSQL( Format( 'Use SHOW CHARACTER SET to see MySQL character sets; ' +
'if you can find one that you are certain matches %d, please report' +
' it via http://rfe.heidisql.com/.', [GetACP()] ), true );
end
else
begin
ExecuteNonQuery( 'SET NAMES ' + charset );
end;
end;
if ( FMysqlConn.Connection.Database <> '' ) then
begin
ExecUseQuery( FMysqlConn.Connection.Database );
end;
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;
// Check the tabletype of the selected table in the Popupmenu of ListTables
procedure TMDIChild.popupDbGridPopup(Sender: TObject);
var
i : byte;
SelectedEngine : String;
NodeData : PVTreeData;
begin
if ListTables.SelectedCount <> 1 then
begin
Exit;
end;
for i := 0 to ListTables.Header.Columns.Count - 1 do
begin
if (ListTables.Header.Columns[i].Text = 'Engine') or (ListTables.Header.Columns[i].Text = 'Type') then
begin
NodeData := ListTables.GetNodeData(ListTables.FocusedNode);
SelectedEngine := NodeData.Captions[i];
Break;
end;
end;
for i := 0 to ( MenuChangeType.Count - 1 ) do
begin
MenuChangeType.Items[i].Checked := ( MenuChangeType.Items[i].Caption = SelectedEngine );
end;
end;
procedure TMDIChild.Init(AConn : POpenConnProf; AMysqlConn : TMysqlConn);
var
AutoReconnect : Boolean;
menuitem : TMenuItem;
winName : String;
i, j : Integer;
ds : TDataSet;
miGroup,
miFunction : TMenuItem;
functioncats : TStringList;
reg, reg2 : TRegistry;
begin
QueryRunningInterlock := 0;
UserQueryFired := False;
UserQueryFiring := False;
TemporaryDatabase := '';
CachedTableLists := TStringList.Create;
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...', 2, true );
// Temporarily disable AutoReconnect in Registry
// in case of unexpected application-termination
AutoReconnect := false;
reg := TRegistry.Create();
with ( reg ) do
begin
OpenKey( REGPATH, true );
if ( Valueexists( 'Autoreconnect' ) ) then
begin
if ( ReadBool( 'AutoReconnect' ) ) then
begin
AutoReconnect := true;
WriteBool( 'AutoReconnect', false );
end;
end;
CloseKey();
end;
FreeAndNil(reg);
ReadWindowOptions();
MainForm.Showstatus( 'Connecting to ' + FConn.MysqlParams.Host + '...', 2, true );
try
PerformConnect();
except
TimerConnectErrorCloseWindow.Enabled := true;
Exit;
end;
Description := FMysqlConn.Description;;
Caption := Description;
OnlyDBs := explode( ';', FConn.DatabaseList );
if ( FConn.DatabaseListSort ) then
begin
OnlyDBs.Sort();
end;
// Fill variables-list, processlist and DB-tree
ShowVariablesAndProcesses( Self );
ReadDatabasesAndTables( Self );
// Re-enable AutoReconnect in Registry!
if ( AutoReconnect ) then
begin
reg2 := TRegistry.Create();
with ( reg2 ) do
begin
OpenKey( REGPATH, true );
WriteBool( 'AutoReconnect', true );
CloseKey();
end;
FreeAndNil(reg2);
end;
// Read engine-types for popupmenu in database tab
if ( mysql_version >= 40102 ) then
begin
for i := ( MenuChangeType.Count - 1 ) downto 0 do
begin
MenuChangeType.Delete(i);
end;
ds := GetResults( 'SHOW ENGINES' );
for i := 0 to ( ds.RecordCount - 1 ) do
begin
menuitem := TMenuItem.Create(self);
menuitem.Caption := ds.FieldByName('Engine').AsString;
menuitem.Hint := ds.FieldByName('Comment').AsString;
if ( UpperCase( ds.FieldByName('Support').AsString ) = 'NO' ) then
begin
menuitem.Enabled := false;
menuitem.Hint := menuitem.Hint + ' ('+STR_NOTSUPPORTED+')';
end;
menuitem.OnClick := MenuChangeTypeClick;
MenuChangeType.Add( menuitem );
ds.Next();
end;
end;
// Define window properties
SetWindowConnected( true );
i := SetWindowName( Description );
winName := Description;
if ( i <> 0 ) then
begin
winName := winName + Format( ' (%d)', [i] );
end;
Application.Title := winName + ' - ' + APPNAME;
// Reselect last used database
if ( ( MainForm.GetRegValue( 'RestoreLastUsedDB', true ) ) 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;
// Set the grid-cells to always-edit-mode.
gridData.Options := gridData.Options + [dgAlwaysShowEditor];
gridQuery.Options := gridQuery.Options + [dgAlwaysShowEditor];
// 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(self);
miGroup.Caption := functioncats[i];
popupQuery.Items.add(miGroup);
for j:=0 to Length(MySqlFunctions)-1 do
begin
if MySqlFunctions[j].Category <> functioncats[i] then
continue;
miFunction := TMenuItem.Create(self);
miFunction.Caption := MySqlFunctions[j].Name;
miFunction.ImageIndex := 86;
// 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);
end;
end;
end;
procedure TMDIChild.ReadWindowOptions;
var
ws : String;
i : Integer;
menuitem : Tmenuitem;
reg : TRegistry;
begin
reg := TRegistry.Create;
if reg.OpenKey( REGPATH, true ) then
begin
ws := reg.ReadString( 'childwinstate' );
if ws = 'Normal' then
begin
WindowState := wsNormal;
if reg.ValueExists( 'childwinleft' ) then
begin
Left := reg.ReadInteger( 'childwinleft' );
Top := reg.ReadInteger( 'childwintop' );
Width := reg.ReadInteger( 'childwinwidth' );
Height := reg.ReadInteger( 'childwinheight' );
end;
end
else if ws = 'Minimized' then
WindowState := wsMinimized
else if ( ws = 'Maximized' ) then
WindowState := wsMaximized;
// Other values:
if reg.ValueExists( 'querymemoheight' ) then
pnlQueryMemo.Height := reg.ReadInteger('querymemoheight');
if reg.ValueExists( 'queryhelperswidth' ) then
pnlQueryHelpers.Width := reg.ReadInteger('queryhelperswidth');
if reg.ValueExists( 'dbtreewidth' ) then
DBtree.Width := reg.ReadInteger( 'dbtreewidth' );
if reg.ValueExists( 'sqloutheight' ) then
PageControlBottom.Height := reg.ReadInteger( 'sqloutheight' );
if reg.ValueExists( 'DefaultColWidth' ) then
prefDefaultColWidth := reg.ReadInteger( 'DefaultColWidth' )
else
prefDefaultColWidth := 100;
if reg.ValueExists('logsqlnum') then
prefLogsqlnum := reg.ReadInteger('logsqlnum')
else
prefLogsqlnum := 300;
prefConvertHTMLEntities := true;
if reg.Valueexists('ConvertHTMLEntities') then
prefConvertHTMLEntities := reg.ReadBool('ConvertHTMLEntities');
prefDataNullBackground := clAqua;
if reg.ValueExists('DataNullBackground') then
prefDataNullBackground := StringToColor(reg.ReadString('DataNullBackground'));
prefCSVSeparator := ',';
prefCSVEncloser := '';
prefCSVTerminator := '\r\n';
if reg.Valueexists('CSVSeparator') then
prefCSVSeparator := reg.ReadString('CSVSeparator');
if reg.Valueexists('CSVEncloser') then
prefCSVEncloser := reg.ReadString('CSVEncloser');
if reg.Valueexists('CSVTerminator') then
prefCSVTerminator := reg.ReadString('CSVTerminator');
// SQL-Font:
if reg.ValueExists( 'FontName' ) and reg.ValueExists('FontSize') then
begin
SynMemoQuery.Font.Name := reg.ReadString( 'FontName' );
SynMemoSQLLog.Font.Name := reg.ReadString( 'FontName' );
SynMemoQuery.Font.Size := reg.ReadInteger( 'FontSize' );
SynMemoSQLLog.Font.Size := reg.ReadInteger( 'FontSize' );
end;
// Data-Font:
if reg.ValueExists( 'DataFontName' ) and reg.ValueExists( 'DataFontSize' ) then
begin
gridData.Font.Name := reg.ReadString( 'DataFontName' );
gridQuery.Font.Name := reg.ReadString( 'DataFontName' );
DBMemo1.Font.Name := reg.ReadString( 'DataFontName' );
gridData.Font.Size := reg.ReadInteger( 'DataFontSize' );
gridQuery.Font.Size := reg.ReadInteger( 'DataFontSize' );
DBMemo1.Font.Size := reg.ReadInteger( 'DataFontSize' );
end;
// Color coding:
if reg.ValueExists( 'SQLColKeyAttri' ) then
SynSQLSyn1.KeyAttri.Foreground := StringToColor( reg.ReadString( 'SQLColKeyAttri' ) );
if reg.ValueExists( 'SQLColFunctionAttri' ) then
SynSQLSyn1.FunctionAttri.Foreground := StringToColor( reg.ReadString( 'SQLColFunctionAttri' ) );
if reg.ValueExists( 'SQLColDataTypeAttri' ) then
SynSQLSyn1.DataTypeAttri.Foreground := StringToColor( reg.ReadString( 'SQLColDataTypeAttri' ) );
if reg.ValueExists( 'SQLColNumberAttri' ) then
SynSQLSyn1.NumberAttri.Foreground := StringToColor( reg.ReadString( 'SQLColNumberAttri' ) );
if reg.ValueExists( 'SQLColStringAttri' ) then
SynSQLSyn1.StringAttri.Foreground := StringToColor( reg.ReadString( 'SQLColStringAttri' ) );
if reg.ValueExists( 'SQLColCommentAttri' ) then
SynSQLSyn1.CommentAttri.Foreground := StringToColor( reg.ReadString( 'SQLColCommentAttri' ) );
if reg.ValueExists( 'SQLColTablenameAttri' ) then
SynSQLSyn1.TablenameAttri.Foreground := StringToColor( reg.ReadString( 'SQLColTablenameAttri' ) );
// SQLFiles-History
FillPopupQueryLoad();
// SQL-Filter-Files-History
i := 1;
popupFilterOpenFile.Items.Clear();
while ( reg.ValueExists( 'SQLWhereFile' + IntToStr(i) ) ) do
begin
menuitem := Tmenuitem.Create(Self);
menuitem.Caption := IntToStr( popupFilterOpenFile.Items.count + 1) + ' ' + reg.ReadString( 'SQLWhereFile' + IntToStr(i) );
menuitem.OnClick := LoadSQLWhereFile;
popupFilterOpenFile.Items.Add( menuitem );
inc( i );
end;
// Synchronize internal variables with defaults from DFM.
StopOnErrors := btnQueryStopOnErrors.Down;
// Says if the filters on the data tab shall be remembered
if reg.ValueExists( 'RememberFilters' ) then
prefRememberFilters := reg.ReadBool('RememberFilters')
else
prefRememberFilters := True;
// Open server-specific registry-folder.
// relative from already opened folder!
reg.OpenKey( 'Servers\' + FConn.Description, true );
// Set last used database, select it later in Init
lastUsedDB := reg.ReadString( 'lastUsedDB' );
end;
reg.CloseKey;
reg.Free;
end;
procedure TMDIChild.FormClose(Sender: TObject; var Action: TCloseAction);
var
ws : String;
reg : TRegistry;
begin
SetWindowConnected( false );
SetWindowName( main.discname );
Application.Title := APPNAME;
// Closing connection and saving some vars into registry
case ( WindowState ) of
wsNormal :
begin
ws := 'Normal';
end;
wsMinimized :
begin
ws := 'Minimized';
end;
wsMaximized :
begin
ws := 'Maximized';
end;
end;
reg := TRegistry.Create();
with ( reg ) do
begin
if ( OpenKey( REGPATH, true ) ) then
begin
// Window state and position
WriteString( 'childwinstate', ws );
WriteInteger( 'childwinleft', left );
WriteInteger( 'childwintop', top );
WriteInteger( 'childwinwidth', width );
WriteInteger( 'childwinheight', height );
WriteInteger( 'querymemoheight', pnlQueryMemo.Height );
WriteInteger( 'queryhelperswidth', pnlQueryHelpers.Width );
WriteInteger( 'dbtreewidth', dbtree.width );
WriteInteger( 'sqloutheight', PageControlBottom.Height );
// Open server-specific registry-folder.
// relative from already opened folder!
OpenKey( 'Servers\' + FConn.Description, true );
WriteString( 'lastUsedDB', ActiveDatabase );
end;
end;
FreeAndNil(reg);
FormDeactivate( Sender );
mainform.ToolBarData.Visible := false;
Action := caFree;
SetWindowConnected( false );
SetWindowName( main.discname );
Application.Title := APPNAME;
end;
procedure TMDIChild.LogSQL(msg: String = ''; comment: Boolean = true);
begin
// Add a sql-command or info-line to history-memo
while ( SynMemoSQLLog.Lines.Count > prefLogsqlnum ) do
begin
SynMemoSQLLog.Lines.Delete(0);
end;
// Shorten very long messages
if ( Length( msg ) > SQLLOG_CHAR_LIMIT ) then
begin
msg :=
'/* Very large SQL query, showing first ' +
FormatNumber( SQLLOG_CHAR_LIMIT ) +
' characters: */ ' +
Copy( msg, 0, SQLLOG_CHAR_LIMIT ) +
' ...';
end;
msg := StringReplace( msg, #9, ' ', [rfReplaceAll] );
msg := StringReplace( msg, #10, ' ', [rfReplaceAll] );
msg := StringReplace( msg, #13, ' ', [rfReplaceAll] );
msg := StringReplace( msg, ' ', ' ', [rfReplaceAll] );
if ( comment ) then
begin
msg := '/* ' + msg + ' */';
end;
SynMemoSQLLog.Lines.Add( msg );
SynMemoSQLLog.SetBookMark( 0, 0, SynMemoSQLLog.Lines.Count );
SynMemoSQLLog.GotoBookMark( 0 );
SynMemoSQLLog.ClearBookMark( 0 );
SynMemoSQLLog.Repaint();
end;
procedure TMDIChild.ReadDatabasesAndTables(Sender: TObject);
var
tnode : TTreeNode;
i : Integer;
specialDbs : TStringList;
dbName : String;
curDb,
curTable : String;
ds : TDataSet;
chgHandler : procedure(Sender: TObject; Node: TTreeNode) of object;
begin
// Force data tab update when appropriate.
dataselected := false;
Screen.Cursor := crSQLWait;
mainform.Showstatus( 'Reading Databases...', 2, true );
if ( OnlyDBs.Count = 0 ) then
begin
OnlyDBs2 := TStringList.Create();
specialDbs := TStringList.Create();
ds := GetResults( 'SHOW DATABASES' );
for i:=1 to ( ds.RecordCount ) do
begin
dbName := ds.FieldByName('Database').AsString;
if ( dbName = DBNAME_INFORMATION_SCHEMA ) then
begin
specialDbs.Insert( 0, dbName )
end
(*
else
if ( dbName = DBNAME_MYSQL ) then
begin
specialDbs.Add( dbName );
end
*)
else
begin
OnlyDBs2.Add( dbName );
end;
ds.Next();
end;
OnlyDBs2.Sort();
// Prioritised position of system-databases
for i := ( specialDbs.Count - 1 ) downto 0 do
begin
OnlyDBs2.Insert( 0, specialDbs[i] );
end;
end
else
begin
OnlyDBs2 := OnlyDBs;
end;
Screen.Cursor := crHourGlass;
// Postpone event handling.
chgHandler := DBTree.OnChange;
DBTree.OnChange := nil;
DBTree.Items.BeginUpdate();
curDb := ActiveDatabase;
curTable := SelectedTable;
DBTree.Items.Clear();
ClearAllTableLists;
tnodehost := DBtree.Items.Add( nil, FConn.MysqlParams.User + '@' + FConn.MysqlParams.Host ); // Host or Root
tnodehost.ImageIndex := 41;
tnodehost.SelectedIndex := 41;
// 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( OnlyDBs2 );
SynSQLSyn1.TableNames.EndUpdate();
// List Databases and Tables-Names
for i := 0 to ( OnlyDBs2.Count - 1 ) do
begin
tnode := DBtree.Items.AddChild( tnodehost, OnlyDBs2[i] );
tnode.ImageIndex := 37;
tnode.SelectedIndex := 38;
// Add dummy-node, will be replaced by real tables on expanding
DBTree.Items.AddChild( tnode, DUMMY_NODE_TEXT );
if i = 0 then tnodehost.Expand(false);
// Reselect previously selected database and table.
if ( curDb = OnlyDBs2[i] ) then
begin
tnode.Selected := True;
PopulateTreeTableList(tnode);
tnode.Expand(false);
if curTable <> '' then try
SelectedTable := curTable;
except
// The table might have been removed - ignore.
end;
end;
end;
if DBTree.Selected = nil then DBTree.Selected := tnodehost;
mainform.showstatus( IntToStr( OnlyDBs2.Count ) + ' Databases' );
DBTree.Items.EndUpdate();
DBTree.OnChange := chgHandler;
if @chgHandler <> nil then chgHandler(self, DBTree.Selected);
MainForm.ShowStatus( STATUS_MSG_READY, 2 );
Screen.Cursor := crDefault;
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 := Description;
pcChange( Self );
end;
procedure TMDIChild.ShowDatabase(db: String);
begin
if (not DBTree.Dragging) and (
(PageControlMain.ActivePage = tabTable) or
(PageControlMain.ActivePage = tabData)
) then PageControlMain.ActivePage := tabDatabase;
tabDatabase.TabVisible := true;
tabTable.TabVisible := false;
tabData.TabVisible := false;
pnlTableTop.Caption := 'Table-Properties';
Caption := Description + ' - /' + db;
try
ShowDBProperties( db );
except
// Clear selection which we couldn't satisfy.
if ( DBtree.Items.Count < 1 ) then
begin
DBtree.Selected := nil
end
else
begin
DBtree.Selected := DBtree.Items[0];
end;
end;
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 := Description + ' - /' + ActiveDatabase + '/' + SelectedTable;
end;
// React on dbtree-clicks
procedure TMDIChild.DBtreeChange(Sender: TObject; Node: TTreeNode);
begin
if (Node = nil) then begin
raise Exception.Create( 'Internal badness: No host node in object tree.' );
end;
case ( Node.Level ) of
0 : // Root / Host chosen
begin
ShowHost();
end;
1 : // DB chosen
begin
ShowDatabase( Node.Text );
end;
2 : // Table chosen
begin
ShowTable( Node.Text );
end;
end;
end;
procedure TMDIChild.DBtreeChanging(Sender: TObject; Node: TTreeNode;
var AllowChange: Boolean);
var
newDb: string;
begin
case Node.Level of
2: if Node.Parent.Text <> ActiveDatabase then newDb := Node.Parent.Text
else Exit;
1: newDb := Node.Text;
else Exit;
end;
LoadDatabaseProperties(newDb);
end;
{***
A database-node is about to be expanded:
Drop the dummy-node and add all tables
}
procedure TMDIChild.DBtreeExpanding(Sender: TObject; Node: TTreeNode;
var AllowExpansion: Boolean);
begin
if ( ( Node.getFirstChild <> nil ) and ( Node.getFirstChild.Text = DUMMY_NODE_TEXT ) ) then
begin
PopulateTreeTableList(Node);
end;
end;
procedure TMDIChild.viewdata(Sender: TObject);
var
sorting : String;
DropDown : TStringList;
i : Integer;
j : Integer;
ValidColumns : TStringList;
PrimaryKeyColumns : TStringList;
reg, reg2 : TRegistry;
reg_value : String;
orderclauses : TStringList;
columnname : String;
columnexists : Boolean;
select_base : String;
limit : Int64;
ds : TDataSet;
sl_query : TStringList;
manualLimit : boolean;
manualLimitEnd : integer;
DisplayedColumnsList : TStringList;
tmp : TDataSet;
RewriteOrderClause : Boolean;
begin
viewingdata := true;
try
sl_query := TStringList.Create();
// limit number of rows automatically if first time this table is shown
if ( not dataselected ) then begin
manualLimit := false;
manualLimitEnd := -1;
with TRegistry.Create do begin
if OpenKey(REGPATH, true) then begin
if Valueexists('DataLimitEnd') then begin
manualLimitEnd := ReadInteger('DataLimitEnd');
if Valueexists('DataLimit') then manualLimit := ReadBool('DataLimit');
end;
end;
end;
// limit number of rows fetched according to preferences
if manualLimit then begin
// manual limit set in preferences
limit := manualLimitEnd;
end else begin
// no tick in preferences check box - auto-limit:
// limit number of rows fetched if more than ~ 5 MB of data
limit := GetCalculatedLimit( SelectedTable );
end;
// adjust limit in GUI
mainform.ToolBarData.Visible := true;
if ( limit = -1 ) then
begin
mainform.CheckBoxLimit.Checked := false;
end
else
begin
mainform.CheckBoxLimit.Checked := true;
mainform.EditLimitStart.Text := '0';
mainform.EditLimitEnd.Text := IntToStr( limit );
end;
mainform.Repaint();
end;
// set db-aware-component's properties...
DBMemo1.DataField := '';
DBMemo1.DataSource := DataSource1;
EDBImage1.DataField := '';
EDBImage1.DataSource := DataSource1;
reg := TRegistry.Create();
reg.OpenKey( REGPATH + '\Servers\' + FConn.Description, true );
if not dataselected and prefRememberFilters then
begin
SynMemoFilter.Text := '';
// Read cached WHERE-clause and set filter
reg_value := 'WHERECLAUSE_' + ActiveDatabase + '.' + SelectedTable;
if ( reg.ValueExists( reg_value ) ) then
begin
SynMemoFilter.Text := reg.ReadString( 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;
PageControlBottom.ActivePage := tabFilter;
end;
end;
// Read cached ORDER-clause and set Grid.Sortcolumns
reg_value := 'ORDERCLAUSE_' + ActiveDatabase + '.' + SelectedTable;
sorting := '';
gridData.SortColumns.Clear();
if ( reg.ValueExists( reg_value ) ) then
begin
orderclauses := explode( ',', reg.ReadString( reg_value ) );
RewriteOrderClause := False;
ValidColumns := GetVTCaptions( ListColumns );
for i := 0 to ( orderclauses.Count - 1 ) do
begin
columnname := Trim( Copy( orderclauses[i], 0, LastPos( ' ', orderclauses[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!');
RewriteOrderClause := True;
Continue;
end;
// Add column to order clause
if sorting <> '' then
sorting := sorting + ', ';
sorting := sorting + orderclauses[i];
with ( gridData.SortColumns.Add() ) do
begin
Fieldname := columnname;
if ( Copy( orderclauses[i], ( Length( orderclauses[i] ) - 3 ), 4 ) = 'DESC' ) then
begin
SortType := stAscending;
end
else
begin
SortType := stDescending;
end;
end;
end;
// Old orderclause contained a no longer existing column, so overwrite it
if RewriteOrderClause then
begin
reg.WriteString( reg_value, sorting );
end;
end;
if ( sorting <> '' ) then
begin
sorting := 'ORDER BY ' + sorting;
// Signal for the user that we applied an ORDER-clause
btnDataSorting.Font.Color := clRed;
end
else
begin
btnDataSorting.Font.Color := clWindowText;
end;
MenuLimit.Checked := Mainform.CheckBoxLimit.Checked;
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...', 2, true );
// Read columns to display from registry
reg2 := TRegistry.Create;
with ( reg2 ) do
begin
OpenKey( REGPATH + '\Servers\' + FConn.Description, true );
DisplayedColumnsList := explode( '`', ReadString(REGNAME_DISPLAYEDCOLUMNS + '_' + ActiveDatabase + '.' + SelectedTable));
end;
FreeAndNil(reg2);
// 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;
FreeAndNil(tmp);
// start query (with wait dialog)
SynMemoFilter.Color := clWindow;
ds := GetResults(sl_query.Text, false);
MainForm.ShowStatus( 'Filling grid with record-data...', 2, true );
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 he specified
if ( SynMemoFilter.CanFocus ) then
begin
SynMemoFilter.SetFocus();
end;
SynMemoFilter.Color := $008080FF; // light pink
MessageDlg( E.Message, mtError, [mbOK], 0 );
MainForm.ShowStatus( STATUS_MSG_READY, 2 );
Screen.Cursor := crDefault;
Exit;
end;
end;
MainForm.ShowStatus( STATUS_MSG_READY, 2 );
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 := explode( ''',''', getEnumValues( VTRowDataListColumns[i].Captions[1] ) );
for j := 0 to ( DropDown.Count - 1 ) do
begin
DropDown[j] := trimc( DropDown[j], '''' );
end;
for j := 0 to ( gridData.Columns.Count - 1 ) do
begin
if ( gridData.Columns[j].FieldName = VTRowDataListColumns[i].Captions[0] ) then
begin
gridData.Columns[j].PickList := DropDown;
end;
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 = 26 )
) then
begin
PrimaryKeyColumns.Add( VTRowDataListColumns[i].Captions[0] );
end;
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 (
(prefDefaultColWidth <> 0) and
(gridData.Columns[j].Width > prefDefaultColWidth)
) then
begin
gridData.Columns[j].Width := prefDefaultColWidth;
end;
// make PK-columns = fsBold
for i := 0 to ( PrimaryKeyColumns.Count - 1 ) do
begin
if (PrimaryKeyColumns[i] = gridData.Columns[j].Fieldname) then
begin
gridData.Columns[j].Font.Style := gridData.Columns[j].Font.Style + [fsBold];
gridData.Columns[j].Color := $02EEEEEE;
end;
end;
end;
DisplayRowCountStats(ds);
dataselected := true;
viewingdata := false;
ds.EnableControls();
pcChange(self);
end;
Screen.Cursor := crDefault;
FreeAndNil (sl_query);
finally
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
begin
Exit;
end;
// Get rowcount
rows_total := StrToInt64( GetVar( 'SELECT COUNT(*) FROM ' +
mask( SelectedTable ), 0 ) );
lblDataTop.Caption := ActiveDatabase + '.' + SelectedTable + ': ' +
FormatNumber( rows_total ) + ' records total';
{***
@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
begin
rows_matching := StrToInt64Def(GetVar('SELECT @found_rows'), 0);
end
else
begin
rows_matching := ActiveGrid.DataSource.DataSet.RecordCount;
end;
end
else
begin
rows_matching := rows_total;
end;
if (
( rows_matching <> rows_total ) and
( Trim( SynMemoFilter.Text ) <> '' )
) then
begin
lblDataTop.Caption := lblDataTop.Caption + ', ' + FormatNumber(rows_matching) +
' matching to filter';
end;
if (
( rows_matching = rows_total ) and
( Trim( SynMemoFilter.Text ) <> '')
) then
begin
lblDataTop.Caption := lblDataTop.Caption + ', filter matches all records';
end;
if (
( mainform.CheckBoxLimit.Checked ) and
( rows_matching > StrToIntDef( mainform.EditLimitEnd.Text, 0 ) )
) then
begin
lblDataTop.Caption := lblDataTop.Caption + ', limited to ' +
FormatNumber( ds.RecordCount );
end;
end;
procedure TMDIChild.WaitForQueryCompletion(WaitForm: TForm);
begin
debug( 'Waiting for query to complete.' );
WaitForm.ShowModal();
debug( 'Query complete.' );
end;
{***
Occurs when active tab has changed.
}
procedure TMDIChild.pcChange(Sender: TObject);
var
dummy : Boolean;
begin
tabFilter.tabVisible := (PageControlMain.ActivePage = tabData);
Mainform.ExecuteQuery.Enabled := PageControlMain.ActivePage = tabQuery;
Mainform.ExecuteSelection.Enabled := PageControlMain.ActivePage = tabQuery;
Mainform.ExecuteLine.Enabled := PageControlMain.ActivePage = tabQuery;
if (PageControlMain.ActivePage = tabData) and (not dataselected) then
viewdata(self);
if PageControlMain.ActivePage = tabQuery then
begin
if ActiveDatabase <> '' then
pnlQueryTop.Caption := 'SQL-Query on Database ' + ActiveDatabase + ':'
else
pnlQueryTop.Caption := 'SQL-Query on Host ' + FConn.MysqlParams.Host + ':';
// 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.
if PageControlMain.ActivePage = tabDatabase then ListTables.SetFocus;
if PageControlMain.ActivePage = tabTable then ListColumns.SetFocus;
if PageControlMain.ActivePage = tabData then gridData.SetFocus;
// 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 CachedTableLists.IndexOf(db) = -1 then begin
// Not in cache, load table list.
OldCursor := Screen.Cursor;
Screen.Cursor := crHourGlass;
MainForm.ShowStatus('Displaying tables from ' + db + '...', 2, true);
if mysql_version >= 32300 then begin
ds := GetResults('SHOW TABLE STATUS FROM ' + mask(db), false, false);
end else begin
// contains table names, nothing else.
ds := GetResults('SHOW 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);
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;
o: TObject;
begin
for idx := 0 to CachedTableLists.Count - 1 do begin
o := CachedTableLists.Objects[idx];
FreeAndNil(o);
end;
CachedTableLists.Clear;
end;
{***
Updates tree with table list for currently selected database (or table).
Does not postpone event handling.
}
procedure TMDIChild.PopulateTreeTableList(tndb: TTreeNode; ForceRefresh: Boolean);
var
ds: TDataSet;
s: string;
t, u: Integer;
cur: string;
begin
// Find currently selected node if not specified, or exit.
if tndb = nil then case DBTree.Selected.Level of
2: tndb := DBTree.Selected.Parent;
1: tndb := DBTree.Selected;
else Exit;
end;
// Do nothing if node already populated with children.
if (not ForceRefresh) and (tndb.Count > 0) and (tndb[0].Text <> DUMMY_NODE_TEXT) then Exit;
// Clear children and populate tree with table names.
SynSQLSyn1.TableNames.BeginUpdate;
cur := '';
if ActiveDatabase = tndb.Text then cur := SelectedTable;
if tndb.Count > 0 then for u:=tndb.Count-1 downto 0 do begin
if tndb.Item[u].Selected then tndb.Selected := true;
tndb.Item[u].delete;
end;
if ForceRefresh then ds := RefreshDbTableList(tndb.Text)
else ds := FetchDbTableList(tndb.Text);
for t:=0 to ds.RecordCount-1 do
begin
s := ds.Fields[0].AsString;
with DBtree.Items.AddChild(tndb, s) do
begin
ImageIndex := 39;
selectedIndex := 40;
if Text = cur then Selected := true;
end;
// Add tables to syntax highlighter
if SynSQLSyn1.TableNames.IndexOf(s) = -1 then SynSQLSyn1.TableNames.Add(s);
ds.Next;
end;
SynSQLSyn1.TableNames.EndUpdate;
end;
procedure TMDIChild.MenuRefreshClick(Sender: TObject);
begin
RefreshActiveDbTableList;
ShowDBProperties(ActiveDatabase);
end;
procedure TMDIChild.LoadDatabaseProperties(db: string);
var
i : Integer;
bytes : Extended;
ds : TDataSet;
ListCaptions : TStringList;
begin
// DB-Properties
Screen.Cursor := crHourGlass;
MainForm.ShowStatus( 'Reading from database ' + db + '...', 2, true );
Mainform.ButtonDropDatabase.Hint := 'Drop Database...|Drop Database ' + db + '...';
try
ds := FetchDbTableList(db);
ListTables.BeginUpdate;
ListTables.Clear;
// (Un)hides (un)selected column names in list
SetupListTablesHeader;
SetLength(VTRowDataListTables, ds.RecordCount);
for i := 1 to ds.RecordCount do
begin
listcaptions := TStringList.Create;
// Table
ListCaptions.Add( ds.Fields[0].AsString );
// SHOW TABLE STATUS only available on 3.23.0 + servers
if mysql_version < 32300 then
continue;
// Default visible columns
// Records
ListCaptions.Add( FormatNumber( ds.FieldByName('Rows').AsFloat ) );
// Size: Data_length + Index_length
bytes := ds.FieldByName('Data_length').AsFloat + ds.FieldByName('Index_length').AsFloat;
ListCaptions.Add( FormatByteNumber( FloatToStr(bytes) ) );
// Created:
if not ds.FieldByName('Create_time').IsNull then
ListCaptions.Add( ds.FieldByName('Create_time').AsString )
else
ListCaptions.Add('N/A');
// Updated:
if not ds.FieldByName('Update_time').IsNull then
ListCaptions.Add( ds.FieldByName('Update_time').AsString )
else
ListCaptions.Add('N/A');
// Type
if ds.FindField('Type')<>nil then
ListCaptions.Add( ds.FieldByName('Type').AsString )
else if ds.FindField('Engine')<>nil then
ListCaptions.Add( ds.FieldByName('Engine').AsString )
else
ListCaptions.Add('');
// Comment
ListCaptions.Add( ds.FieldByName('Comment').AsString );
// Add content from other columns which are not visible in ListTables by default
if ds.FindField('Version')<>nil then
ListCaptions.Add( ds.FieldByName('Version').AsString )
else
ListCaptions.Add('');
if ds.FindField('Row_format')<>nil then
ListCaptions.Add( ds.FieldByName('Row_format').AsString )
else
ListCaptions.Add('');
if (ds.FindField('Avg_row_length')<>nil) and (ds.FieldByName('Avg_row_length').AsString<>'') then
ListCaptions.Add( FormatByteNumber(ds.FieldByName('Avg_row_length').AsString) )
else
ListCaptions.Add('');
if (ds.FindField('Max_data_length')<>nil) and (ds.FieldByName('Max_data_length').AsString<>'') then
ListCaptions.Add( FormatByteNumber(ds.FieldByName('Max_data_length').AsString) )
else
ListCaptions.Add('');
if (ds.FindField('Index_length')<>nil) and (ds.FieldByName('Index_length').AsString<>'') then
ListCaptions.Add( FormatByteNumber(ds.FieldByName('Index_length').AsString) )
else
ListCaptions.Add('');
if (ds.FindField('Data_free')<>nil) and (ds.FieldByName('Data_free').AsString<>'') then
ListCaptions.Add( FormatByteNumber(ds.FieldByName('Data_free').AsString) )
else
ListCaptions.Add('');
if (ds.FindField('Auto_increment')<>nil) and (ds.FieldByName('Auto_increment').AsString<>'') then
ListCaptions.Add( FormatNumber(ds.FieldByName('Auto_increment').AsString) )
else
ListCaptions.Add('');
if ds.FindField('Check_time')<>nil then
ListCaptions.Add( ds.FieldByName('Check_time').AsString )
else
ListCaptions.Add('');
if ds.FindField('Collation')<>nil then
ListCaptions.Add( ds.FieldByName('Collation').AsString )
else
ListCaptions.Add('');
if ds.FindField('Checksum')<>nil then
ListCaptions.Add( ds.FieldByName('Checksum').AsString )
else
ListCaptions.Add('');
if ds.FindField('Create_options')<>nil then
ListCaptions.Add( ds.FieldByName('Create_options').AsString )
else
ListCaptions.Add('');
VTRowDataListTables[i-1].ImageIndex := 39;
VTRowDataListTables[i-1].Captions := ListCaptions;
ds.Next;
end;
mainform.showstatus(db + ': ' + IntToStr(ds.RecordCount) +' table(s)');
finally
ListTables.RootNodeCount := Length(VTRowDataListTables);
ListTables.EndUpdate;
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 );
pnlDatabaseTop.Caption := 'Database ' + db + ': ' + IntToStr(ListTables.RootNodeCount) + ' table(s)';
MainForm.ShowStatus( STATUS_MSG_READY, 2 );
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;
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;
pnlTableTop.Caption := 'Table-Properties for ' + ActiveDatabase + ': ' + table;
MainForm.ShowStatus( 'Reading table properties...', 2, 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');
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);
{*
TODO: Create drag-drop box next to query window with these columns.
// add fields to dbtree for drag'n dropping purpose
if not DBTree.Selected.HasChildren then
begin
ds.First;
for i:=1 to ds.RecordCount do begin
tn := DBtree.Items.AddChild(Dbtree.Selected, ds.FieldByName('Field').AsString );
if ds.FieldByName('Key').AsString = 'PRI' then
tn.ImageIndex := 26
else
tn.ImageIndex := 62;
tn.SelectedIndex := tn.ImageIndex;
ds.Next;
end;
end;
*}
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;
{
** 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;
Screen.Cursor := crDefault;
end;
pcChange( Self );
MainForm.ShowStatus( STATUS_MSG_READY, 2, false );
MainForm.showstatus(ActiveDatabase + ': '+ table + ': ' + IntToStr(ListColumns.RootNodeCount) +' field(s)');
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
tableSelected : Boolean;
inDataOrQueryTab, inDataOrQueryTabNotEmpty : 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;
tableSelected := (Length(ListTables.GetSortedSelection(False))>0) and FrmIsFocussed;
btnDbProperties.Enabled := tableSelected;
menuproperties.Enabled := tableSelected;
btnDbInsertRecord.Enabled := tableSelected;
menuinsert.Enabled := tableSelected;
btnDbViewData.Enabled := tableSelected;
menuviewdata.Enabled := tableSelected;
btnDbEmptyTable.Enabled := tableSelected;
menuemptytable.Enabled := tableSelected;
MenuAdvancedProperties.Enabled := tableSelected;
MenuRenameTable.Enabled := tableSelected;
MenuChangeType1.Enabled := tableSelected;
MenuChangeType2.Enabled := tableSelected;
MenuChangeType3.Enabled := tableSelected;
MenuChangeType4.Enabled := tableSelected;
MenuChangeType5.Enabled := tableSelected;
MenuChangeTypeOther.Enabled := tableSelected;
Mainform.CopyTable.Enabled := tableSelected;
MenuTableComment.Enabled := tableSelected;
MenuOptimize.Enabled := tableSelected;
MenuCheck.Enabled := tableSelected;
MenuAnalyze.Enabled := tableSelected;
MenuRepair.Enabled := tableSelected;
MainForm.ButtonDropDatabase.Enabled := (ActiveDatabase <> '') and FrmIsFocussed;
MainForm.DropTable.Enabled := tableSelected or ((PageControlMain.ActivePage <> tabDatabase) and (SelectedTable <> '') and FrmIsFocussed);
MainForm.ButtonCreateTable.Enabled := (ActiveDatabase <> '') and FrmIsFocussed;
MainForm.ButtonImportTextFile.Enabled := (mysql_version >= 32206) and FrmIsFocussed;
MainForm.MenuImportTextFile.Enabled := MainForm.ButtonImportTextFile.Enabled;
with MainForm do
begin
ButtonRefresh.Enabled := FrmIsFocussed;
ButtonReload.Enabled := FrmIsFocussed;
ExportTables.Enabled := FrmIsFocussed;
ButtonCreateDatabase.Enabled := FrmIsFocussed;
MenuRefresh.Enabled := FrmIsFocussed;
MenuExport.Enabled := FrmIsFocussed;
MenuCreateTable.Enabled := FrmIsFocussed;
MenuCreateDatabase.Enabled := FrmIsFocussed;
MenuDropDatabase.Enabled := FrmIsFocussed;
LoadSQL.Enabled := FrmIsFocussed;
MenuFlushHosts.Enabled := FrmIsFocussed;
MenuFlushLogs.Enabled := FrmIsFocussed;
FlushUserPrivileges1.Enabled := FrmIsFocussed;
MenuFlushTables.Enabled := FrmIsFocussed;
MenuFlushTableswithreadlock.Enabled := FrmIsFocussed;
MenuFlushStatus.Enabled := FrmIsFocussed;
UserManager.Enabled := FrmIsFocussed;
Diagnostics.Enabled := FrmIsFocussed;
InsertFiles.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));
PrintList.Enabled := (not inDataOrQueryTab) and FrmIsFocussed;
{***
@note ansgarbecker, 2007-31-03
1. For data-tab-queries (threaded queries) the TDatasource does *not* have
an linked TDataset/TZquery in case of a SQL-error. To avoid an AV with
NIL-reference we have to first check if the Dataset is existant - if not,
assume the datagrid is empty.
2. For query-tab-queries (not threaded) the TZQuery is linked
to the TDatasource and we can safely ask for TDataset.IsEmpty without
causing a NIL-reference.
@todo use the same threaded process for both datagrid and query-grid
}
inDataOrQueryTabNotEmpty := inDataOrQueryTab and
not (
(getActiveGrid.DataSource.DataSet = nil)
or getActiveGrid.DataSource.DataSet.IsEmpty
);
Copy2CSV.Enabled := inDataOrQueryTabNotEmpty;
CopyHTMLtable.Enabled := inDataOrQueryTabNotEmpty;
Copy2XML.Enabled := inDataOrQueryTabNotEmpty;
ExportData.Enabled := inDataOrQueryTabNotEmpty;
HTMLView.Enabled := inDataOrQueryTabNotEmpty;
Self.Delete1.Enabled := inDataOrQueryTabNotEmpty; // Menuitem in popupDataGrid ("Delete record(s)")
ToolBarData.visible := (PageControlMain.ActivePage = tabData);
if FrmIsFocussed then
DBNavigator1.DataSource := DataSource1;
btnSQLHelp.Enabled := (mysql_version >= 40100) and FrmIsFocussed;
menuSQLHelp.Enabled := btnSQLHelp.Enabled and FrmIsFocussed;
if not FrmIsFocussed then
begin
MainForm.showstatus('', 1); // empty connected_time
end;
tabBlobEditor.tabVisible := inDataOrQueryTab;
end;
end;
procedure TMDIChild.ShowTableData(table: string);
begin
dataselected := false;
PageControlMain.ActivePage := tabData;
viewdata(self);
pcChange( Self );
end;
procedure TMDIChild.MenuViewDataClick(Sender: TObject);
var
NodeData: PVTreeData;
begin
if Assigned(ListTables.FocusedNode) then begin
NodeData := ListTables.GetNodeData(ListTables.FocusedNode);
PopulateTreeTableList;
SelectedTable := NodeData.Captions[0];
ShowTableData(SelectedTable);
end;
end;
procedure TMDIChild.EmptyTable(Sender: TObject);
var
t : TStringList;
i : Integer;
sql_pattern : String;
begin
// Empty Table(s)
if ListTables.SelectedCount = 0 then
exit;
// Add selected items/tables to helper list
t := GetVTCaptions(ListTables, True);
if MessageDlg('Empty ' + IntToStr(t.count) + ' Table(s) ?' + crlf + '(' + implodestr(', ', t) + ')', mtConfirmation, [mbok,mbcancel], 0) <> mrok then
exit;
Screen.Cursor := crSQLWait;
{**
@note ansgarbecker: Empty table using faster TRUNCATE statement on newer servers
@see http://dev.mysql.com/doc/refman/5.0/en/truncate.html
@see https://sourceforge.net/tracker/index.php?func=detail&aid=1644143&group_id=164593&atid=832350
}
if mysql_version < 50003 then
sql_pattern := 'DELETE FROM '
else
sql_pattern := 'TRUNCATE ';
for i:=0 to t.count-1 do
ExecUpdateQuery( sql_pattern + mask(t[i]) );
t.Free;
MenuRefreshClick(self);
Screen.Cursor := crDefault;
end;
procedure TMDIChild.DropDB(Sender: TObject);
var
tndb_ : TTreeNode;
begin
// Drop DB.
tndb_ := nil;
if (Sender as TComponent).Name = 'PopupmenuDropDatabase' then
// drop cmd from popupmenu
tndb_ := DBRightClickSelectedItem
else case DBTree.Selected.Level of // drop cmd from toolbar
1 : tndb_ := DBTree.Selected;
2 : tndb_ := DBTree.Selected.Parent;
end;
if tndb_ = nil then raise Exception.Create('Internal error: Cannot drop NIL database.');
if MessageDlg('Drop Database "'+tndb_.Text+'"?' + crlf + crlf + 'WARNING: You will lose all tables in database '+tndb_.Text+'!', mtConfirmation, [mbok,mbcancel], 0) <> mrok then
abort;
Screen.Cursor := crSQLWait;
try
ExecUpdateQuery( 'DROP DATABASE ' + mask(tndb_.Text) );
if OnlyDBs.Count > 0 then
begin
if OnlyDBs.IndexOf(tndb_.Text) > -1 then
begin
OnlyDBs.Delete( OnlyDBs.IndexOf(tndb_.Text) );
with TRegistry.Create do
begin
if OpenKey(REGPATH + '\Servers\' + FConn.Description, false) then
begin
WriteString( 'OnlyDBs', ImplodeStr( ';', OnlyDBs ) );
CloseKey;
end;
end;
end;
end;
if tndb_.Selected then tndb_.Parent.Selected := true;
tndb_.Delete;
except
MessageDLG('Dropping failed.'+crlf+'Maybe '''+tndb_.Text+''' is not a valid database-name.', mtError, [mbOK], 0)
end;
Screen.Cursor := crDefault;
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 := 86;
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, rowindex : Integer;
questions : Int64;
ds : TDataSet;
begin
// Refresh variables and process-list
Screen.Cursor := crSQLWait;
// 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 := 87;
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;
// STATUS
uptime := 1; // avoids division by zero :)
questions := 1;
ds := GetResults( 'SHOW /*!50002 GLOBAL */ STATUS' );
for i:=1 to ds.RecordCount do
begin
if LowerCase( Copy( ds.Fields[0].AsString, 1, 4 ) ) <> 'com_' then
begin
rowindex := Length(VTRowDataListVariables);
SetLength( VTRowDataListVariables, rowindex+1 );
VTRowDataListVariables[rowindex].ImageIndex := 87;
VTRowDataListVariables[rowindex].Captions := TStringList.Create;
VTRowDataListVariables[rowindex].Captions.Add( ds.Fields[0].AsString );
VTRowDataListVariables[rowindex].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);
end;
ds.Next;
end;
// Tell VirtualTree the number of nodes it will display
ListVariables.RootNodeCount := Length(VTRowDataListVariables);
ListVariables.EndUpdate;
// Display number of listed values on tab
tabVariables.Caption := 'Variables (' + IntToStr(ListVariables.RootNodeCount) + ')';
// Command-Statistics
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;
// Tell VirtualTree the number of nodes it will display
ListCommandStats.RootNodeCount := Length(VTRowDataListCommandStats);
ListCommandStats.EndUpdate;
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;
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;
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 := 83 // killed
else
VTRowDataListProcesses[i-1].ImageIndex := 82; // running
for j := 1 to 7 do
VTRowDataListProcesses[i-1].Captions.Add(ds.Fields[j].AsString);
ds.Next;
end;
ds.Close;
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;
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 : TStringList;
i : Integer;
rowsaffected : Integer;
SQLstart : Integer;
SQLend : Integer;
SQLscriptstart : Integer;
SQLscriptend : Integer;
SQLTime : Double;
fieldcount : Integer;
recordcount : Integer;
ds : TDataSet;
term : String;
begin
if ( btnAltTerminator.Down ) then
begin
term := '//';
end
else
begin
term := ';';
end;
if ( CurrentLine ) then
begin
// Run current line
SQL := parseSQL( SynMemoQuery.LineText, term );
end
else
if ( Selection ) then
begin
// Run selection
SQL := parseSQL( SynMemoQuery.SelText, term );
end
else
begin
// Run all
SQL := parseSQL( SynMemoQuery.Text, term );
end;
if ( SQL.Count = 0 ) then
begin
LabelResultinfo.Caption := '(nothing to do)';
Exit;
end;
// Destroy old data set.
ds := DataSource2.DataSet;
DataSource2.DataSet := nil;
FreeAndNil( ds );
// set db-aware-component's properties..
DBMemo1.DataField := EmptyStr;
DBMemo1.DataSource := DataSource2;
EDBImage1.DataField := EmptyStr;
EDBImage1.DataSource := DataSource2;
SQLscriptstart := GetTickCount();
LabelResultinfo.Caption := EmptyStr;
ds := nil;
try
MainForm.showstatus( 'Initializing SQL...', 2, true );
Mainform.ExecuteQuery.Enabled := false;
Mainform.ExecuteSelection.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...', 2, true );
for i := 0 to (SQL.Count - 1) do
begin
ProgressBarQuery.StepIt();
ProgressBarQuery.Repaint;
if ( sql[i] = EmptyStr ) then
begin
continue;
end;
// open last query with data-aware:
LabelResultinfo.Caption := EmptyStr;
// ok, let's rock
SQLstart := GetTickCount();
try
if ( ExpectResultSet( SQL[i] ) ) then
begin
ds := GetResults( SQL[i], false, false );
gridQuery.DataSource.DataSet := ds;
if ( ds <> nil ) then
begin
fieldcount := ds.Fieldcount;
recordcount := ds.Recordcount;
end
else
begin
fieldcount := 0;
recordcount := 0;
end;
rowsaffected := rowsaffected + TZQuery(ds).RowsAffected;
end
else
begin
rowsaffected := rowsaffected + ExecUpdateQuery( SQL[i], false, false );
fieldcount := 0;
recordcount := 0;
end;
except
on E:Exception do
begin
if (
( btnQueryStopOnErrors.Down ) or
( i = (SQL.Count - 1) )
) then
begin
Screen.Cursor := crDefault;
MessageDlg( E.Message, mtError, [mbOK], 0 );
ProgressBarQuery.Hide();
Mainform.ExecuteQuery.Enabled := true;
Mainform.ExecuteSelection.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.ExecuteQuery.Enabled := true;
Mainform.ExecuteSelection.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
if ( prefDefaultColWidth <> 0 ) then
begin
for i:=0 to gridQuery.Columns.count-1 do
begin
if ( gridQuery.Columns[i].Width > prefDefaultColWidth ) then
begin
gridQuery.Columns[i].Width := prefDefaultColWidth;
end;
end;
end;
end
else
begin
// Avoid AV for mousewheel-scrolling in empty datagrid
DataSource2.DataSet := nil;
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, 2 );
end;
end;
{**
Clicked somewhere in the field-list of the "Table"-tabsheet
}
procedure TMDIChild.ListColumnsChange(Sender: TBaseVirtualTree; Node:
PVirtualNode);
var
SomeSelected, OneFocused: Boolean;
begin
// some columns selected ?
OneFocused := Assigned(Sender.FocusedNode);
SomeSelected := Length(Sender.GetSortedSelection(False))>0;
// Toggle state of menuitems and buttons
btnTableDropField.Enabled := SomeSelected;
DropField1.Enabled := SomeSelected;
MenuEditField.Enabled := OneFocused;
btnTableEditField.enabled := OneFocused;
menuRenameColumn.Enabled := OneFocused;
end;
procedure TMDIChild.DropField(Sender: TObject);
var
tn : TTreeNode;
i : Integer;
dropCmd : String;
dropList : TStringList;
begin
// Drop Columns
// We allow the user to select and delete multiple listItems
dropList := GetVTCaptions( ListColumns, True );
// In case all listItems are selected:
if dropList.Count = Length(VTRowDataListColumns) then
begin
if MessageDlg('Can''t drop all or the last Field - drop Table '+SelectedTable+'?', mtConfirmation, [mbok,mbcancel], 0) = mrok then
begin
Screen.Cursor := crSQLWait;
ExecUpdateQuery( 'DROP TABLE '+mask(SelectedTable) );
tn := DBTree.Selected;
DBTree.Selected := DBTree.Selected.Parent;
tn.Destroy;
MenuRefreshClick(self);
Screen.Cursor := crDefault;
end;
end else
if MessageDlg('Drop ' + IntToStr(dropList.Count) + ' field(s): ' + ImplodeStr( ', ', dropList ) + ' ?', mtConfirmation, [mbok,mbcancel], 0) = mrok then
try
// Concat fields for ALTER query
for i := 0 to dropList.Count - 1 do
dropCmd := dropCmd + 'DROP ' + mask(dropList[i]) + ', ';
// Remove trailing comma
delete(dropCmd, Length(dropCmd)-1, 2);
// Execute field dropping
ExecUpdateQuery( 'ALTER TABLE '+mask(SelectedTable)+' ' + dropCmd );
// Rely on the server respective ExecUpdateQuery has raised an exception so the
// following code will be skipped on any error
ListColumns.BeginUpdate;
ListColumns.DeleteSelectedNodes;
ListColumns.EndUpdate;
// Set focus on first item
ListColumns.FocusedNode := ListColumns.GetFirstVisible;
except
On E : Exception do
begin
MessageDlg( E.Message, mtError, [mbOK], 0 );
end;
end;
end;
{ Proposal about to insert a String into synmemo }
procedure TMDIChild.SynCompletionProposal1CodeCompletion(Sender: TObject;
var Value: String; Shift: TShiftState; Index: Integer; EndToken: Char);
begin
SynCompletionProposal1.Editor.UndoList.AddGroupBreak;
end;
procedure TMDIChild.SynCompletionProposal1AfterCodeCompletion(Sender: TObject;
const Value: String; Shift: TShiftState; Index: Integer; EndToken: Char);
begin
SynCompletionProposal1.Editor.UndoList.AddGroupBreak;
end;
{ Proposal-Combobox pops up }
procedure TMDIChild.SynCompletionProposal1Execute(Kind: TSynCompletionType;
Sender: TObject; var CurrentInput: String; var x, y: Integer;
var CanExecute: Boolean);
var
i,j,c,t : Integer;
tn, child : TTreeNode;
sql, tmpsql, kw : String;
keywords, tables : TStringList;
tablename : String;
procedure addTable( name: String );
begin
SynCompletionProposal1.InsertList.Add( name );
SynCompletionProposal1.ItemList.Add( '\hspace{2}\color{'+ColorToString(SynSQLSyn1.TableNameAttri.Foreground)+'}table\color{clWindowText}\column{}' + name );
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;
tablename := mask( tablename );
if dbname <> '' then
tablename := mask( dbname ) + '.' + tablename;
ds := getResults( 'SHOW COLUMNS FROM '+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;
end;
begin
SynCompletionProposal1.InsertList.Clear;
SynCompletionProposal1.ItemList.Clear;
// Get column-names into the proposal (Daniel's Top1-wish...)
// when we write sql like "SELECT t.|col FROM table [AS] t"
// This is at no means a perfect solution which catches all kind of
// SQL statements. But for simple SQL it should work fine.
// 1. find the currently edited sql-statement around the cursor position in synmemo
j := Length(SynCompletionProposal1.Editor.Text);
c := 1024;
for i := SynCompletionProposal1.Editor.SelStart+1024 downto SynCompletionProposal1.Editor.SelStart-1024 do
begin
if i > j then
continue;
if i < 1 then
begin
c := SynCompletionProposal1.Editor.SelStart;
break;
end;
sql := SynCompletionProposal1.Editor.Text[i] + sql;
end;
sql := StringReplace( sql, CRLF, ' ', [rfReplaceall] );
sql := StringReplace( sql, #10, ' ', [rfReplaceall] );
sql := StringReplace( sql, #13, ' ', [rfReplaceall] );
// 2. find the position of tablenames after the cursor-position (c)
keywords := TStringList.Create;
keywords.CommaText := 'FROM,INTO,UPDATE';
t := -1;
for i := c to Length(sql) do // forward from cursor-position
begin
kw := Copy( sql, i, Pos( ' ', Copy( sql, i, Length(sql) ) )-1 );
if keywords.IndexOf( kw ) > -1 then
begin
t := i + Length( kw );
break;
end;
end;
if t = -1 then
begin
for i := c downto 0 do // and backwards from cursor-position
begin
kw := Copy( sql, i, Pos( ' ', Copy( sql, i, Length(sql) ) )-1 );
if keywords.IndexOf( kw ) > -1 then
begin
t := i + Length( kw );
break;
end;
end;
end;
// 3. find tablenames and aliases, compare them with previous token
tablename := '';
if t>-1 then
begin
tables := TStringList.Create;
tables.CommaText := StringReplace( Copy( sql, t, Length(sql)), ' ', ',', [rfReplaceall] );
for i := 0 to tables.Count - 1 do
begin
if (UpperCase(tables[i]) = 'AS') and (i > 0) and (i<tables.Count-1) then
begin
if (SynCompletionProposal1.PreviousToken = tables[i-1]) or
(SynCompletionProposal1.PreviousToken = tables[i+1]) then
begin
tablename := tables[i-1]; // Got it!
break;
end;
end;
end;
end;
if (tablename <> '') then
begin
// add columns to proposal
addColumns( tablename );
end
else if SynCompletionProposal1.PreviousToken <> '' then
begin
// assuming that previoustoken itself is a table
addColumns( SynCompletionProposal1.PreviousToken );
end;
if Length(CurrentInput) = 0 then // makes only sense if the user has typed "database."
begin
if OnlyDBs2.IndexOf( SynCompletionProposal1.PreviousToken ) > -1 then
begin
// Only display tables from specified db
Screen.Cursor := crHourGlass;
for i:=0 to DBTree.Items.Count-1 do
begin
tn := DBTree.Items[i];
if tn.Text = SynCompletionProposal1.PreviousToken then
begin
child := tn.getFirstChild;
for j:=0 to tn.Count-1 do
begin
addTable(child.Text);
child := tn.getNextChild(child);
end;
end;
end;
Screen.Cursor := crDefault;
end;
end;
if (SynCompletionProposal1.ItemList.count = 0) and (Length(CurrentInput)>0) then
begin
// Add databases
SynCompletionProposal1.InsertList.AddStrings( OnlyDBs2 );
SynCompletionProposal1.ItemList.AddStrings( OnlyDBs2 );
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
// Add tables
for i:=0 to Length(VTRowDataListTables)-1 do
begin
addTable( VTRowDataListTables[i].Captions[0] );
end;
if Length(CurrentInput) = 0 then // assume that we have already a dbname in memo
SynCompletionProposal1.Position := OnlyDBs2.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
PanelCharsInQueryWindow.Caption := FormatByteNumber( SynMemoQuery.GetTextLen );
somechars := Length(SynMemoQuery.Text) > 0;
Mainform.ExecuteQuery.Enabled := somechars;
Mainform.ExecuteSelection.Enabled := SynMemoQuery.SelAvail;
Mainform.ExecuteLine.Enabled := SynMemoQuery.LineText <> '';
btnQuerySave.Enabled := somechars;
btnQuerySaveSnippet.Enabled := somechars;
end;
procedure TMDIChild.CreateTable(Sender: TObject);
begin
if Sender = PopupMenuCreateTable then begin
if DBTree.Selected.Level = 2 then CreateTableWindow(Self, DBtree.Selected.Parent.Text);
if DBTree.Selected.Level = 1 then CreateTableWindow(Self, DBtree.Selected.Text);
end else CreateTableWindow(Self);
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(strHostRunning, [msg])
else msg := Format(strHostNotRunning, [msg]);
Panel4.Caption := msg;
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;
//TODO:
//ds.DisableControls;
end;
{ Edit field }
procedure TMDIChild.UpdateField(Sender: TObject);
var
fn : String;
fem : TFieldEditorMode;
begin
fn := '';
fem := femFieldAdd;
if Assigned(ListColumns.FocusedNode) then
fn := ListColumns.Text[ListColumns.FocusedNode, 0];
if fn<>'' then
fem := femFieldUpdate;
FieldEditorWindow (Self,fem,fn);
end;
{ Add new field }
procedure TMDIChild.MenuAddFieldClick(Sender: TObject);
begin
FieldEditorWindow (Self,femFieldAdd);
end;
procedure TMDIChild.CreateDatabase(Sender: TObject);
var
f : TCreateDatabaseForm;
begin
// Create database:
// - create modal form
// - rely on the modalresult being set correctly
f := TCreateDatabaseForm.Create(Self);
if f.ShowModal = mrOK then
begin
// Add DB to OnlyDBs-regkey if this is not empty
if OnlyDBs.Count > 0 then
begin
OnlyDBs.Add( f.editDBName.Text );
with TRegistry.Create do
begin
if OpenKey(REGPATH + '\Servers\' + FConn.Description, false) then
begin
WriteString( 'OnlyDBs', ImplodeStr( ';', OnlyDBs ) );
CloseKey;
end;
end;
end;
// Todo: Don't expand node of old database in dbtree, just reload and switch to new one
ReadDatabasesAndTables(self);
ActiveDatabase := f.editDBName.Text;
end;
FreeAndNil(f);
end;
procedure TMDIChild.MenuAdvancedPropertiesClick(Sender: TObject);
begin
tbl_properties_Window(self);
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;
RefreshActiveDbTableList;
except
On E : Exception do
begin
MessageDlg( E.Message, mtError, [mbOK], 0 );
end;
end;
end;
procedure TMDIChild.MenuRenameTableClick(Sender: TObject);
begin
// menuitem for edit table-name
ListTables.EditNode( ListTables.FocusedNode, 0 );
end;
procedure TMDIChild.MenuViewBlobClick(Sender: TObject);
begin
PageControlBottom.ActivePage := tabBlobEditor;
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.Clear1Click(Sender: TObject);
begin
// clear
if SynMemoFilter.Focused then
SynMemoFilter.Lines.Clear
else
SynMemoQuery.Lines.Clear;
end;
procedure TMDIChild.MenuTableCommentClick(Sender: TObject);
begin
// table-comment
tablecommentWindow(self);
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.ManageIndexes1Click(Sender: TObject);
begin
FieldEditorWindow (Self,femIndexEditor);
end;
procedure TMDIChild.Markall3Click(Sender: TObject);
begin
// select all in history
SynMemoSQLLog.SelectAll;
end;
procedure TMDIChild.More1Click(Sender: TObject);
begin
TableDiagnosticsWindow(Self);
end;
procedure TMDIChild.MenuOptimizeClick(Sender: TObject);
var
i : Integer;
Selected : TStringList;
begin
// Optimize tables
Screen.Cursor := crHourGlass;
Selected := GetVTCaptions( ListTables, True );
try
for i:=0 to Selected.Count-1 do
begin
ExecUpdateQuery( 'OPTIMIZE TABLE ' + mask(Selected[i]) );
end;
// Update ListTables because relevant table properties probably have changed
Mainform.Childwin.RefreshActiveDbTableList;
finally
Selected.Free;
Screen.Cursor := crDefault;
end;
end;
procedure TMDIChild.MenuCheckClick(Sender: TObject);
var
i : Integer;
tables : String;
Selected : TStringList;
begin
// Check tables
Screen.Cursor := crHourGlass;
tables := '';
Selected := GetVTCaptions( ListTables, True );
try
for i:=0 to Selected.Count-1 do
begin
if tables <> '' then
tables := tables + ', ';
tables := tables + mask(Selected[i]);
end;
ExecUpdateQuery( 'CHECK TABLE ' + tables + ' QUICK' );
finally
Selected.Free;
Screen.Cursor := crDefault;
end;
end;
{**
Clear Query memo
}
procedure TMDIChild.menuclearClick(Sender: TObject);
var
memo : TSynMemo;
begin
// Clear SynMemo
if SynMemoFilter.Focused then
memo := SynMemoFilter
else
memo := SynMemoQuery;
// Make sure to add this step to SynMemo's undo history
memo.SelectAll;
memo.SelText := '';
memo.SelStart := 0;
memo.SelEnd := 0;
end;
procedure TMDIChild.MenuAnalyzeClick(Sender: TObject);
var
i : Integer;
tables : String;
Selected : TStringList;
begin
// Analyze tables
Screen.Cursor := crHourGlass;
tables := '';
Selected := GetVTCaptions( ListTables, True );
try
for i:=0 to Selected.Count-1 do
begin
if tables <> '' then
tables := tables + ', ';
tables := tables + mask(Selected[i]);
end;
ExecUpdateQuery( 'ANALYZE TABLE ' + tables );
finally
Selected.Free;
Screen.Cursor := crDefault;
end;
end;
procedure TMDIChild.MenuRepairClick(Sender: TObject);
var
i : Integer;
tables : String;
Selected : TStringList;
begin
// Repair tables
Screen.Cursor := crHourGlass;
tables := '';
Selected := GetVTCaptions( ListTables, True );
try
for i:=0 to Selected.Count - 1 do
begin
if tables <> '' then
tables := tables + ', ';
tables := tables + mask(Selected[i]);
end;
ExecUpdateQuery( 'REPAIR TABLE ' + tables + ' QUICK' );
// Update ListTables because relevant table properties probably have changed
Mainform.Childwin.RefreshActiveDbTableList;
finally
Selected.Free;
Screen.Cursor := crDefault;
end;
end;
procedure TMDIChild.ListTablesDblClick(Sender: TObject);
var
NodeData : PVTreeData;
begin
// table-doubleclick
if Assigned(ListTables.FocusedNode) then begin
NodeData := ListTables.GetNodeData(ListTables.FocusedNode);
PopulateTreeTableList;
SelectedTable := NodeData.Captions[0];
ShowTable(SelectedTable);
end;
end;
procedure TMDIChild.TimerConnectErrorCloseWindowTimer(Sender: TObject);
begin
// can't connect -> close MDI-Child
TimerConnectErrorCloseWindow.Enabled := false;
Mainform.Showstatus('', 1);
MainForm.ShowStatus( STATUS_MSG_READY, 2 );
close;
end;
procedure TMDIChild.gridDataTitleClick(Column: TColumn);
var
Grid : TSMDBGrid;
i : Integer;
existed : Boolean;
sortcol : TSMSortColumn;
sorting, reg_value : String;
reg : TRegistry;
begin
// column-title clicked -> generate "ORDER BY"
Grid := Column.Grid as TSMDBGrid;
Grid.DataSource.DataSet.DisableControls;
existed := false;
for i:=Grid.SortColumns.Count-1 downto 0 do
begin
sortcol := Grid.SortColumns[i];
if sortcol.FieldName <> Column.FieldName then
continue;
existed := true;
case sortcol.SortType of
stDescending : sortcol.SortType := stAscending;
stAscending : Grid.SortColumns.Delete(i);
stNone : sortcol.SortType := stDescending;
end;
end;
{add a new sorted column in list - ascending order}
if not existed then
begin
sortcol := Grid.SortColumns.Add;
sortcol.FieldName := column.FieldName;
sortcol.SortType := stDescending;
end;
Grid.DataSource.DataSet.EnableControls;
// Concat orderclause
sorting := '';
for i := 0 to ( gridData.SortColumns.Count - 1 ) do
begin
sortcol := gridData.SortColumns[i];
if ( sortcol.SortType <> stNone ) then
begin
if ( sorting <> '' ) then
begin
sorting := sorting + ', ';
end;
sorting := sorting + mask( sortcol.FieldName );
end;
case sortcol.SortType of
// stNone: ;
stAscending :
begin
sorting := sorting + ' DESC';
end;
stDescending:
begin
sorting := sorting + ' ASC';
end;
end;
end;
// Write orderclause to registry
reg := TRegistry.Create();
reg.OpenKey( REGPATH + '\Servers\' + FConn.Description, true );
reg_value := 'ORDERCLAUSE_' + ActiveDatabase + '.' + SelectedTable;
if ( sorting <> '' ) then
begin
reg.WriteString( reg_value, sorting );
end
else
begin
if ( reg.ValueExists( reg_value ) ) then
reg.DeleteValue( reg_value );
end;
reg.CloseKey;
ViewData(self);
end;
procedure TMDIChild.Filter1Click(Sender: TObject);
begin
// Set WHERE-Filter
PageControlBottom.ActivePage := tabFilter;
SynMemoFilter.SetFocus;
end;
// open Find-Dialog
procedure TMDIChild.btnQueryFindClick(Sender: TObject);
begin
FindDialogQuery.execute;
// if something is selected search for that text
if SynMemoQuery.SelAvail and (SynMemoQuery.BlockBegin.Line = SynMemoQuery.BlockEnd.Line)
then
FindDialogQuery.FindText := SynMemoQuery.SelText
else
FindDialogQuery.FindText := SynMemoQuery.GetWordAtRowCol(SynMemoQuery.CaretXY);
end;
// open Replace-Dialog
procedure TMDIChild.btnQueryReplaceClick(Sender: TObject);
begin
ReplaceDialogQuery.execute;
// if something is selected search for that text
if SynMemoQuery.SelAvail and (SynMemoQuery.BlockBegin.Line = SynMemoQuery.BlockEnd.Line)
then
ReplaceDialogQuery.FindText := SynMemoQuery.SelText
else
ReplaceDialogQuery.FindText := SynMemoQuery.GetWordAtRowCol(SynMemoQuery.CaretXY);
end;
// Search-Dialog is searching...
procedure TMDIChild.FindDialogQueryFind(Sender: TObject);
var
Options: TSynSearchOptions;
Search: String;
begin
Search := FindDialogQuery.FindText;
Options := [];
if Sender is TReplaceDialog then
Include(Options, ssoEntireScope);
if not (frDown in FindDialogQuery.Options) then
Include(Options, ssoBackwards);
if frMatchCase in FindDialogQuery.Options then
Include(Options, ssoMatchCase);
if frWholeWord in FindDialogQuery.Options then
Include(Options, ssoWholeWord);
if SynMemoQuery.SearchReplace(Search, '', Options) = 0 then
begin
MessageBeep(MB_ICONASTERISK);
Mainform.ShowStatus( 'SearchText ''' + Search + ''' not found!', 0);
end;
end;
{ Find Text for replace-dialog }
procedure TMDIChild.ReplaceDialogQueryFind(Sender: TObject);
begin
FindDialogQuery.FindText := ReplaceDialogQuery.FindText;
FindDialogQueryFind( ReplaceDialogQuery );
end;
{ Replace Text with replace-dialog }
procedure TMDIChild.ReplaceDialogQueryReplace(Sender: TObject);
var
Options: TSynSearchOptions;
Search: String;
begin
Search := ReplaceDialogQuery.FindText;
Options := [ssoEntireScope]; // Do replaces always on entire scope, because the standard-dialog lacks of a down/up-option
if frReplaceAll in ReplaceDialogQuery.Options then
Include( Options, ssoReplaceAll );
if not (frDown in ReplaceDialogQuery.Options) then
Include(Options, ssoBackwards);
if frMatchCase in ReplaceDialogQuery.Options then
Include(Options, ssoMatchCase);
if frWholeWord in ReplaceDialogQuery.Options then
Include(Options, ssoWholeWord);
if frReplace in ReplaceDialogQuery.Options then // Replace instead of ReplaceAll is pressed
Include(Options, ssoReplace)
else
Include(Options, ssoReplaceAll);
if SynMemoQuery.SearchReplace( Search, ReplaceDialogQuery.ReplaceText, Options) = 0 then
begin
MessageBeep(MB_ICONASTERISK);
Mainform.ShowStatus( 'SearchText ''' + Search + ''' not found!', 0);
if ssoBackwards in Options then
SynMemoQuery.BlockEnd := SynMemoQuery.BlockBegin
else
SynMemoQuery.BlockBegin := SynMemoQuery.BlockEnd;
SynMemoQuery.CaretXY := SynMemoQuery.BlockBegin;
end;
end;
procedure TMDIChild.MenuLimitClick(Sender: TObject);
begin
// limit or not limit
mainform.CheckBoxLimit.Checked := not mainform.CheckBoxLimit.Checked;
viewdata(self);
end;
procedure TMDIChild.Delete1Click(Sender: TObject);
begin
// Delete record(s)
if gridData.SelectedRows.Count = 0 then begin
if MessageDLG('Delete 1 Record(s)?', mtConfirmation, [mbOK, mbCancel], 0) = mrOK then
GetVisualDataSet().Delete(); // unsafe ...
end else
if MessageDLG('Delete '+IntToStr(gridData.SelectedRows.count)+' Record(s)?', mtConfirmation, [mbOK, mbCancel], 0) = mrOK then
gridData.SelectedRows.Delete;
end;
procedure TMDIChild.QuickFilterClick(Sender: TObject);
var
filter,value,column : String;
menuitem : TMenuItem;
begin
// Set filter for "where..."-clause
value := gridData.SelectedField.AsString;
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;
PageControlBottom.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.btnDbPropertiesClick(Sender: TObject);
var
NodeData : PVTreeData;
begin
if Assigned(ListTables.FocusedNode) then
begin
NodeData := ListTables.GetNodeData(ListTables.FocusedNode);
PopulateTreeTableList;
SelectedTable := NodeData.Captions[0];
ShowTableProperties(SelectedTable);
end;
end;
procedure TMDIChild.btnDbViewDataClick(Sender: TObject);
var
NodeData : PVTreeData;
begin
NodeData := ListTables.GetNodeData(ListTables.FocusedNode);
PopulateTreeTableList;
SelectedTable := NodeData.Captions[0];
ShowTableData(SelectedTable);
end;
procedure TMDIChild.PageControlBlobEditorsChange(Sender: TObject);
begin
btnBlobCopy.Enabled := true;
btnBlobLoad.Enabled := not DBMemo1.ReadOnly;
btnBlobSave.Enabled := true;
if PageControlBlobEditors.ActivePage = tabBlobEditorText then
begin
// MEMO tab activated.
btnBlobWordWrap.Enabled := true;
end;
if PageControlBlobEditors.ActivePage = tabBlobEditorImage 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
bf: Textfile;
grid: TSMDBGrid;
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 PageControlBlobEditors.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 PageControlBlobEditors.ActivePageIndex of
0 : begin
AssignFile(bf, filename);
Rewrite(bf);
Write(bf, GetVisualDataset().FieldByName(DBMemo1.DataField).AsString);
CloseFile(bf);
end;
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 PageControlBlobEditors.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 PageControlBlobEditors.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('SQLWhereFile'+IntToStr(i), ReadString('SQLWhereFile'+IntToStr(i-1)));
dec(i);
end;
WriteString('SQLWhereFile1', FileName);
i := 1;
popupTreeView.Items.Clear;
while ValueExists('SQLWhereFile'+IntToStr(i)) do begin
menuitem := Tmenuitem.Create(self);
menuitem.Caption := IntToStr(popupFilterOpenFile.Items.count+1) + ' ' + ReadString('SQLWhereFile'+IntToStr(i));
menuitem.OnClick := LoadSQLWhereFile;
popupFilterOpenFile.Items.Add(menuitem);
Inc( i );
end;
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;
if prefRememberFilters then
try
reg.openkey( REGPATH + '\Servers\' + 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 );
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(self);
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(self);
end;
procedure TMDIChild.MenuChangeTypeClick(Sender: TObject);
var
i : Integer;
tabletype : String;
Selected : TStringList;
begin
tabletype := (Sender as TMenuItem).Caption;
tabletype := StringReplace( tabletype, '&', '', [rfReplaceAll] ); // Remove Auto-Hotkey
Selected := GetVTCaptions(ListTables, True);
for i:=0 to Selected.Count - 1 do
ExecUpdateQuery( 'ALTER TABLE ' + mask(Selected[i]) + ' TYPE = ' + tabletype);
Selected.Free;
MenuRefreshClick(self);
end;
procedure TMDIChild.MenuChangeTypeOtherClick(Sender: TObject);
var
i : Integer;
strtype : String;
Selected : TStringList;
begin
// change table-type:
if inputquery('Change table-type...','New table-type:', strtype) then begin
Selected := GetVTCaptions(ListTables, True);
for i:=0 to Selected.Count - 1 do
ExecUpdateQuery( 'ALTER TABLE ' + mask(Selected[i]) + ' TYPE = ' + strtype );
Selected.Free;
MenuRefreshClick(self);
end;
end;
procedure TMDIChild.InsertRecord(Sender: TObject);
begin
viewdata(self);
GetVisualDataset().Insert;
end;
// select all tables
procedure TMDIChild.selectall1Click(Sender: TObject);
begin
ListTables.SelectAll(False);
end;
procedure TMDIChild.popupQueryPopup(Sender: TObject);
var
NotInFilterMemo,
somechars : Boolean;
ActiveSynMemo : TSynMemo;
begin
// Depending which SynMemo is focused, (de-)activate some menuitems
// The popupQuery is used in both Filter- and Query-Memo
NotInFilterMemo := Not SynMemoFilter.Focused;
if NotInFilterMemo then
ActiveSynMemo := SynMemoQuery
else
ActiveSynMemo := SynMemoFilter;
MenuSetFilter.Visible := Not NotInFilterMemo;
MenuRun.Visible := NotInFilterMemo;
MenuRunSelection.Visible := NotInFilterMemo;
MenuRunLine.Visible := NotInFilterMemo;
MenuCopy.Visible := NotInFilterMemo;
MenuPaste.Visible := NotInFilterMemo;
MenuFind.Visible := NotInFilterMemo;
MenuReplace.Visible := NotInFilterMemo;
MenuLoad.Visible := NotInFilterMemo;
MenuInsertFileAtCursor.Visible := NotInFilterMemo;
MenuSave.Visible := NotInFilterMemo;
MenuSaveSelectionToFile.Visible := NotInFilterMemo;
MenuSaveAsSnippet.Visible := NotInFilterMemo;
MenuSaveSelectionAsSnippet.Visible := NotInFilterMemo;
if NotInFilterMemo then
begin
somechars := ActiveSynMemo.GetTextLen > 0;
MenuRun.ShortCut := TextToShortCut('F9'); // Exec SQL with F9
MenuSetFilter.ShortCut := TextToShortCut('');
// Inserting file at cursor only makes sense with content
MenuInsertFileAtCursor.Enabled := somechars;
Menusave.Enabled := somechars;
MenuSaveSelectionToFile.Enabled := ActiveSynMemo.SelAvail;
MenuSaveAsSnippet.Enabled := somechars;
MenuSaveSelectionAsSnippet.Enabled := ActiveSynMemo.SelAvail;
end
else
begin
somechars := ActiveSynMemo.GetTextLen > 0;
MenuRun.ShortCut := TextToShortCut('');
MenuSetFilter.ShortCut := TextToShortCut('F9'); // set Filter with F9
end;
MenuClear.Enabled := somechars;
menuSQLHelp.Enabled := (mysql_version >= 40100) and (ActiveSynMemo.WordAtCursor <> '');
// Insert keyword into menuitem, so it's very clear what the menuitem does
menuSQLHelp.Caption := 'Lookup "'+sstr(ActiveSynMemo.WordAtCursor,50)+'" in SQL help ...';
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);
begin
// Check for F1-pressed
if Key = VK_F1 then
CallSQLHelp( self )
// 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;
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;
begin
// dropping a TTreeNode 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 is TTreeView then
begin
Text := (src as TTreeView).Selected.Text;
end
else if src = lboxQueryHelpers then
begin
Text := (src as TListBox).Items[(src as TListBox).ItemIndex];
if tabsetQueryHelpers.TabIndex = 3 then
begin
QueryLoad( DIRNAME_SNIPPETS + Text + '.sql', False );
LoadText := False;
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: TStrings);
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);
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);
begin
// toggle drop-items and remember right-clicked item
PopupMenuDropDatabase.Enabled := DBtree.Selected.Level = 1;
PopupMenuCreateTable.Enabled := DBtree.Selected.Level in [1,2];
MainForm.DropTable.Enabled := DBtree.Selected.Level = 2;
DBRightClickSelectedItem := DBtree.Selected;
end;
procedure TMDIChild.btnQuerySaveSnippetClick(Sender: TObject);
var
snippetname : String;
sfile : Textfile;
mayChange : Boolean;
begin
// Save snippet
if InputQuery( 'Save snippet', 'Snippet name:', snippetname) then
begin
if Copy( snippetname, Length(snippetname)-4, 4 ) <> '.sql' then
snippetname := snippetname + '.sql';
// cleanup snippetname from special characters
snippetname := DIRNAME_SNIPPETS + goodfilename(snippetname);
if FileExists( snippetname ) then
begin
if MessageDlg( 'Overwrite existing snippet '+snippetname+'?', mtConfirmation, [mbOK, mbCancel], 0 ) <> mrOK then
exit;
end;
Screen.Cursor := crHourglass;
AssignFile( sfile, snippetname );
Rewrite( sfile );
// Save complete content or just the selected text,
// depending on the tag of calling control
case (Sender as TComponent).Tag of
0: Write( sfile, SynMemoQuery.Text );
1: Write( sfile, SynMemoQuery.SelText );
end;
CloseFile( sfile );
FillPopupQueryLoad;
if tabsetQueryHelpers.TabIndex = 3 then begin
// SQL Snippets selected in query helper, refresh list
mayChange := True; // Unused; satisfies callee parameter collection which is probably dictated by tabset.
tabsetQueryHelpersChange(Sender, 3, mayChange);
end;
Screen.Cursor := crDefault;
end;
end;
procedure TMDIChild.CallSQLHelp(Sender: TObject);
var
keyword : String;
begin
// Call SQL Help from various places
if mysql_version < 40100 then
exit;
keyword := '';
// Query-Tab
if SynMemoQuery.Focused then
keyword := SynMemoQuery.WordAtCursor
// LogSQL-Tab
else if SynMemoSQLLog.Focused then
keyword := SynMemoSQLLog.WordAtCursor
// Filter-Tab
else if SynMemoFilter.Focused then
keyword := SynMemoFilter.WordAtCursor
// Data-Tab
else if (PageControlMain.ActivePage = tabData)
and (-1 < gridData.Col)
and (gridData.Col <= Length(VTRowDataListColumns)) then
begin
keyword := VTRowDataListColumns[gridData.Col-1].Captions[1];
end
// Table-Tab
else if ListColumns.Focused and Assigned(ListColumns.FocusedNode) then
begin
keyword := ListColumns.Text[ListColumns.FocusedNode, 1];
end
else if lboxQueryHelpers.Focused then
begin
// Makes only sense if one of the tabs "SQL fn" or "SQL kw" was selected
if tabsetQueryHelpers.TabIndex in [1,2] then
begin
keyword := lboxQueryHelpers.Items[lboxQueryHelpers.ItemIndex];
end;
end;
// Clean existing paranthesis, fx: char(64)
if Pos( '(', keyword ) > 0 then
begin
keyword := Copy( keyword, 1, Pos( '(', keyword )-1 );
end;
// Show the window
CallSQLHelpWithKeyword( keyword );
end;
{***
Show SQL Help window directly using a keyword
@param String SQL-keyword
@see FieldeditForm.btnDatatypeHelp
}
procedure TMDIChild.CallSQLHelpWithKeyword( keyword: String );
begin
// Set help-keyword and show window
SQLhelpWindow(self, keyword);
end;
procedure TMDIChild.ToolButton4Click(Sender: TObject);
begin
SaveBlob;
mainform.HTMLviewExecute(Sender);
end;
procedure TMDIChild.btnQuerySaveClick(Sender: TObject);
var
f : TextFile;
begin
// Save SQL
if SaveDialogSQLFile.Execute then
begin
Screen.Cursor := crHourGlass;
AssignFile(f, SaveDialogSQLFile.FileName);
Rewrite(f);
// Save complete content or just the selected text,
// depending on the tag of calling control
case (Sender as TComponent).Tag of
0: Write( f, SynMemoQuery.Text );
1: Write( f, SynMemoQuery.SelText );
end;
CloseFile(f);
Screen.Cursor := crDefault;
end;
end;
procedure TMDIChild.popupQueryLoadClick( sender: TObject );
var
filename : String;
p : Integer;
begin
// Click on the popupQueryLoad
filename := (Sender as TMenuItem).Caption;
if Pos( '\', filename ) = 0 then
begin // assuming we load a snippet
filename := DIRNAME_SNIPPETS + filename + '.sql';
end
else
begin // assuming we load a file from the recent-list
p := Pos( ' ', filename ) + 1;
filename := Copy(filename, p, Length(filename));
end;
filename := Stringreplace(filename, '&', '', [rfReplaceAll]);
QueryLoad( filename );
end;
procedure TMDIChild.btnQueryLoadClick(Sender: TObject);
begin
// Click on the btnQueryLoad
if OpenDialogSQLfile.Execute then
begin
QueryLoad( OpenDialogSQLfile.FileName );
end;
end;
{**
Insert SQL file at cursor
}
procedure TMDIChild.menuInsertFileAtCursorClick(Sender: TObject);
begin
if OpenDialogSQLfile.Execute then
begin
QueryLoad( OpenDialogSQLfile.FileName, False );
end;
end;
procedure TMDIChild.AddOrRemoveFromQueryLoadHistory( filename: String; AddIt: Boolean = true; CheckIfFileExists: Boolean = true );
var
i : Integer;
Values, newfilelist : TStringList;
reg : TRegistry;
savedfilename : String;
begin
// Add or remove filename to/from history, avoiding duplicates
reg := TRegistry.Create;
reg.openkey(REGPATH, true);
newfilelist := TStringList.create;
Values := TStringList.create;
reg.GetValueNames( Values );
// Add new filename
if AddIt then
begin
newfilelist.Add( filename );
end;
// Add all other filenames
for i:=0 to Values.Count-1 do
begin
if Pos( 'SQLFile', Values[i] ) <> 1 then
continue;
savedfilename := reg.ReadString( Values[i] );
reg.DeleteValue( Values[i] );
if CheckIfFileExists and (not FileExists( savedfilename )) then
continue;
if (savedfilename <> filename) and (newfilelist.IndexOf(savedfilename)=-1) then
newfilelist.add( savedfilename );
end;
// Save new list
for i := 0 to newfilelist.Count-1 do
begin
if i >= 20 then
break;
reg.WriteString( 'SQLFile'+IntToStr(i), newfilelist[i] );
end;
reg.Free;
end;
procedure TMDIChild.QueryLoad( filename: String; ReplaceContent: Boolean = true );
var
tmpstr, filecontent : String;
f : TextFile;
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
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
AssignFile( f, filename );
Reset( f );
while not eof( f ) do
begin
Readln( f, tmpstr );
filecontent := filecontent + tmpstr + CRLF;
end;
except
on E: Exception do
begin
MessageDLG( 'Error while reading file ' + filename + ':' + CRLF + CRLF + E.Message, mtError, [mbOK], 0);
AddOrRemoveFromQueryLoadHistory( filename, false );
FillPopupQueryLoad;
Screen.Cursor := crDefault;
exit;
end;
end;
CloseFile( f );
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
AddOrRemoveFromQueryLoadHistory( filename, true );
FillPopupQueryLoad;
Screen.Cursor := crDefault;
end;
procedure TMDIChild.FillPopupQueryLoad;
var
i, j : Integer;
menuitem, snippetsfolder : TMenuItem;
snippets : TStringList;
sqlFilename : String;
begin
// Fill the popupQueryLoad menu
popupQueryLoad.Items.Clear;
// Snippets
snippets := getFilesFromDir( DIRNAME_SNIPPETS, '*.sql', true );
snippetsfolder := TMenuItem.Create( popupQueryLoad );
snippetsfolder.Caption := 'Snippets';
popupQueryLoad.Items.Add(snippetsfolder);
for i := 0 to snippets.Count - 1 do
begin
menuitem := TMenuItem.Create( snippetsfolder );
menuitem.Caption := snippets[i];
menuitem.OnClick := popupQueryLoadClick;
snippetsfolder.Add(menuitem);
end;
// Separator
menuitem := TMenuItem.Create( popupQueryLoad );
menuitem.Caption := '-';
popupQueryLoad.Items.Add(menuitem);
// Recent files
with TRegistry.Create do
begin
openkey(REGPATH, true);
j := 0;
for i:=0 to 19 do
begin
if not ValueExists('SQLFile'+IntToStr(i)) then
continue;
sqlFilename := ReadString( 'SQLFile'+IntToStr(i) );
inc(j);
menuitem := TMenuItem.Create( popupQueryLoad );
menuitem.Caption := IntToStr(j) + ' ' + sqlFilename;
menuitem.OnClick := popupQueryLoadClick;
popupQueryLoad.Items.Add(menuitem);
end;
Free;
end;
// Separator + "Remove absent files"
menuitem := TMenuItem.Create( popupQueryLoad );
menuitem.Caption := '-';
popupQueryLoad.Items.Add(menuitem);
menuitem := TMenuItem.Create( popupQueryLoad );
menuitem.Caption := 'Remove absent files';
menuitem.OnClick := PopupQueryLoadRemoveAbsentFiles;
popupQueryLoad.Items.Add(menuitem);
end;
procedure TMDIChild.PopupQueryLoadRemoveAbsentFiles( sender: TObject );
begin
AddOrRemoveFromQueryLoadHistory( '', false, true );
FillPopupQueryLoad;
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.btnQueryStopOnErrorsClick(Sender: TObject);
begin
StopOnErrors := not StopOnErrors;
btnQueryStopOnErrors.Down := StopOnErrors;
end;
procedure TMDIChild.btnTableViewDataClick(Sender: TObject);
begin
ShowTableData(SelectedTable);
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 TDBGrid).SelectedField <> nil then begin
// Set focus on DBMemo when user doubleclicks a (MEMO)-cell
if (sender as TSMDBGrid).SelectedField.IsBlob and (PageControlBlobEditors.ActivePage = tabBlobEditorText) then begin
PageControlBottom.ActivePage := tabBlobEditor;
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;
procedure TMDIChild.DBGridGetCellParams(Sender: TObject; Field: TField;
AFont: TFont; var Background: TColor; Highlight: Boolean);
begin
if (Sender as TDBGrid).SelectedRows.CurrentRowSelected then begin
background := clInfoBK;
afont.Color := clInfoText;
end;
if (field <> nil) and field.IsNull then background := prefDataNullBackground;
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(gridData.SelectedField.AsString, 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 PageControlBlobEditors.ActivePageIndex of
0 : clipboard.astext := GetVisualDataset().FieldByName(DBMemo1.DataField).AsString;
1 : EDBImage1.CopyToClipboard;
end;
end;
procedure TMDIChild.setNULL1Click(Sender: TObject);
begin
if not (DataSource1.State in [dsEdit, dsInsert]) then
DataSource1.Edit;
gridData.SelectedField.Clear;
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: string; 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: string; HandleErrors: Boolean = false; DisplayErrors: Boolean = false): Int64;
var
MysqlQuery : TMysqlQuery;
begin
Result := -1; // Silence compiler warning.
MysqlQuery := nil;
try
try
// Start query execution
MysqlQuery := RunThreadedQuery(sql);
Result := TZQuery(MysqlQuery.MysqlDataset).RowsAffected;
// 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 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: string; HandleErrors: Boolean = false; DisplayErrors: Boolean = false): TDataSet;
var
res: TMysqlQuery;
begin
res := nil;
try
// Start query execution
res := RunThreadedQuery(sql);
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 res <> nil then FreeAndNil(res);
if not HandleErrors then raise THandledSQLError.Create(E.Message);
Result := nil;
end;
end;
end;
{***
Executes a query.
}
function TMDIChild.GetResults( SQLQuery: String; HandleErrors: Boolean = false; DisplayErrors: Boolean = false ): TDataSet;
begin
result := ExecSelectQuery(SQLQuery, HandleErrors, DisplayErrors);
end;
{***
Execute a query and return String from column x
}
function TMDIChild.GetVar( SQLQuery: String; 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;
end;
function TMDIChild.GetNamedVar( SQLQuery: String; 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;
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: String; 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;
end;
{***
Event procedure handler for the ZSQLMonitor1 object
}
procedure TMDIChild.ZSQLMonitor1LogTrace(Sender: TObject;
Event: TZLoggingEvent);
begin
LogSQL( Trim( 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 )) + '%'
);
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);
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: String): 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
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);
finally
FQueryRunning := false;
end;
end;
procedure TMDIChild.Splitter2Moved(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: TSMDBGrid;
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 Blob-Editor
PageControlBottom.ActivePage := tabBlobEditor;
MenuViewBlob.Enabled := true;
// 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
PageControlBlobEditors.ActivePage := tabBlobEditorImage;
end
else
begin
PageControlBlobEditors.ActivePage := tabBlobEditorText;
end;
end;
ResizeImageToFit;
end
else
begin
// No BLOB selected, so disconnect the Blob-components
// from any field
DBMemo1.ReadOnly := true;
DBMemo1.DataField := '';
EDBImage1.DataField := '';
MenuViewBlob.Enabled := false;
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;
PageControlBlobEditorsChange(self);
end;
procedure TMDIChild.ZQuery1EditError(DataSet: TDataSet; E: EDatabaseError;
var Action: TDataAction);
begin
LogSQL( E.Message, true );
end;
// Search with searchbox
procedure TMDIChild.ButtonDataSearchClick(Sender: TObject);
var
i : Integer;
where : String;
begin
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: String) : String;
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: TSMDBGrid;
begin
Result := nil;
if PageControlMain.ActivePage = tabData then Result := gridData;
if PageControlMain.ActivePage = tabQuery then Result := gridQuery;
end;
function TMDIChild.GetActiveDatabase: string;
begin
// Find currently selected database node in database tree,
// or the parent if a table is currently selected.
if DBTree.Selected = nil then Result := ''
else case DBTree.Selected.Level of
2: Result := DBTree.Selected.Parent.Text;
1: Result := DBTree.Selected.Text;
else Result := '';
end;
end;
function TMDIChild.GetSelectedTable: string;
begin
if DBTree.Selected = nil then Result := ''
else case DBTree.Selected.Level of
2: Result := DBTree.Selected.Text;
else Result := '';
end;
end;
procedure TMDIChild.SetSelectedTable(table: string);
var
allnodes: TTreeNodes;
i: integer;
begin
allnodes := DBTree.Items;
if allnodes.Count > 0 then begin
// Round 1: Search case-sensitive.
// Important after creating a table on servers with lower_case_table_names=0
for i := 0 to allnodes.Count - 1 do begin
if (allnodes[i].Level = 2) and (allnodes[i].Text = table) then begin
allnodes[i].Selected := true;
exit;
end;
end;
// Round 2: Search case-insensitive
// Important after creating a table on servers with lower_case_table_names=1
for i := 0 to allnodes.Count - 1 do begin
if (allnodes[i].Level = 2) and (AnsiCompareText(allnodes[i].Text, table) = 0) then begin
allnodes[i].Selected := true;
exit;
end;
end;
end;
raise Exception.Create('Node ' + table + ' not found in tree.');
end;
procedure TMDIChild.SetSelectedDatabase(db: string);
var
allnodes: TTreeNodes;
i: integer;
begin
allnodes := DBTree.Items;
if allnodes.Count > 0 then begin
// Round 1: Search case-sensitive.
// Important after creating a DB on servers with lower_case_table_names=0
for i := 0 to allnodes.Count - 1 do begin
if (allnodes[i].Level = 1) and (allnodes[i].Text = db) then begin
allnodes[i].Selected := true;
exit;
end;
end;
// Round 2: Search case-insensitive
// Important after creating a DB on servers with lower_case_table_names=1
for i := 0 to allnodes.Count - 1 do begin
if (allnodes[i].Level = 1) and (AnsiCompareText(allnodes[i].Text, db) = 0) then begin
allnodes[i].Selected := true;
exit;
end;
end;
end;
raise Exception.Create('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;
AvgRowSize := MakeInt( ds.FieldByName( 'Avg_row_length' ).AsString ) + ROW_SIZE_OVERHEAD;
RecordCount := MakeInt( ds.FieldByName( 'Rows' ).AsString );
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;
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 and refresh data if needed
if frm.ShowModal = mrOK then
ViewData(self);
btn.Down := False;
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;
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
// State of items in popupmenu
lboxQueryHelpers.Items := getFilesFromDir( DIRNAME_SNIPPETS, '*.sql', true );
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 (QueryHelpersSelectedItems[NewTab] > -1)
and (QueryHelpersSelectedItems[NewTab] < lboxQueryHelpers.Count) then
begin
lboxQueryHelpers.ItemIndex := QueryHelpersSelectedItems[NewTab];
end;
lboxQueryHelpers.Items.EndUpdate;
end;
{**
Insert string from listbox with query helpers into SQL
memo at doubleclick
}
procedure TMDIChild.lboxQueryHelpersDblClick(Sender: TObject);
var
itemtext : String;
begin
itemtext := lboxQueryHelpers.Items[lboxQueryHelpers.ItemIndex];
case tabsetQueryHelpers.TabIndex of
3: // Load snippet file <20>nto query-memo
QueryLoad( DIRNAME_SNIPPETS + itemtext + '.sql', False );
else // For all other tabs just insert the item from the list
SynMemoQuery.SelText := itemtext;
end;
SynMemoQuery.SetFocus;
end;
{**
Remember last used items in query helper tabs
}
procedure TMDIChild.lboxQueryHelpersClick(Sender: TObject);
begin
QueryHelpersSelectedItems[tabsetQueryHelpers.TabIndex] := lboxQueryHelpers.ItemIndex;
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;
// 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 );
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;
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
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;
Int1, Int2 : Int64;
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 := '';
// Apply different comparisons for numbers and text
if StrToIntDef( copy(CellText1,0,1), -1 ) <> -1 then
begin
// Assuming numeric values
Int1 := MakeInt( CellText1 );
Int2 := MakeInt( CellText2 );
if Int1 > Int2 then
Result := 1
else if Int1 = Int2 then
Result := 0
else if Int1 < Int2 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
h.Columns[i].Color := COLOR_SORTCOLUMN
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 = 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 = @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;
reg : TRegistry;
begin
menuitem := (Sender as TMenuItem);
reg := TRegistry.Create;
reg.OpenKey( REGPATH, true );
if ListTablesColumnNames.IndexOf( menuitem.Caption ) > -1 then
ListTablesColumnNames.Delete( ListTablesColumnNames.IndexOf( menuitem.Caption ) )
else
ListTablesColumnNames.Add( menuitem.Caption );
// Store list of columns in registry
reg.WriteString( REGNAME_LISTTABLESCOLUMNNAMES, ListTablesColumnNames.DelimitedText );
SetupListTablesHeader;
end;
{**
(Un)hides (un)selected columns in ListTables
}
procedure TMDIChild.SetupListTablesHeader;
var
reg : TRegistry;
i : Integer;
menuitem : TMenuItem;
begin
if ListTablesColumnNames = nil then
begin
// First time we read the columns list from registry into this global variable
ListTablesColumnNames := TStringList.Create;
reg := TRegistry.Create;
reg.openkey( REGPATH, true );
if reg.ValueExists( REGNAME_LISTTABLESCOLUMNNAMES ) then
begin
ListTablesColumnNames.DelimitedText := reg.ReadString( REGNAME_LISTTABLESCOLUMNNAMES );
// Ensure first column (Table) is always visible
if ListTablesColumnNames.IndexOf(ListTables.Header.Columns[0].Text) = -1 then
ListTablesColumnNames.Add( ListTables.Header.Columns[0].Text );
end
else begin
// If not set, by default make the first 7 columns visible
for i:=0 to ListTables.Header.Columns.Count-1 do
begin
ListTablesColumnNames.Add(ListTables.Header.Columns[i].Text);
if i >= 6 then
break;
end;
end;
reg.Free;
end;
// All columns in ListTables are created at designtime. Only (un)hide them here
// Plus generate menuitems for popupDBgridColumns
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;
popupDbGridHeader.Items.Add( menuitem );
if (i=0) or (ListTablesColumnNames.IndexOf( ListTables.Header.Columns[i].Text ) > -1) then
begin
ListTables.Header.Columns[i].Options := ListTables.Header.Columns[i].Options + [coVisible];
menuitem.Checked := True;
end
else begin
ListTables.Header.Columns[i].Options := ListTables.Header.Columns[i].Options - [coVisible];
menuitem.Checked := False;
end;
end;
end;
{**
Call context sensitive help from popupmenu (fx popupQuery)
}
procedure TMDIChild.menuSQLhelpClick(Sender: TObject);
begin
CallSQLHelp( Sender );
end;
end.
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