mirror of
https://github.com/HeidiSQL/HeidiSQL.git
synced 2025-08-06 18:24:26 +08:00
2292 lines
80 KiB
ObjectPascal
2292 lines
80 KiB
ObjectPascal
unit table_editor;
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interface
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uses
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Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
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Dialogs, StdCtrls, TntStdCtrls, ComCtrls, ToolWin, VirtualTrees, WideStrings,
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SynRegExpr, ActiveX, ExtCtrls, ImgList, SynEdit, SynMemo, Menus, WideStrUtils,
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Contnrs, grideditlinks, mysql_structures, mysql_connection, helpers;
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type
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TfrmTableEditor = class(TFrame)
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btnSave: TButton;
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btnDiscard: TButton;
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btnHelp: TButton;
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listColumns: TVirtualStringTree;
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PageControlMain: TPageControl;
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tabBasic: TTabSheet;
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tabIndexes: TTabSheet;
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tabOptions: TTabSheet;
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lblName: TLabel;
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editName: TTntEdit;
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memoComment: TTntMemo;
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lblComment: TLabel;
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lblAutoinc: TLabel;
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lblAvgRowLen: TLabel;
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lblInsertMethod: TLabel;
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lblUnion: TLabel;
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lblMaxRows: TLabel;
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lblRowFormat: TLabel;
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editAutoInc: TEdit;
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editAvgRowLen: TEdit;
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editMaxRows: TEdit;
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chkChecksum: TCheckBox;
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comboRowFormat: TComboBox;
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memoUnionTables: TTntMemo;
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comboInsertMethod: TComboBox;
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lblCollation: TLabel;
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comboCollation: TComboBox;
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lblEngine: TLabel;
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comboEngine: TComboBox;
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treeIndexes: TVirtualStringTree;
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tlbIndexes: TToolBar;
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btnAddIndex: TToolButton;
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btnRemoveIndex: TToolButton;
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btnClearIndexes: TToolButton;
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btnMoveUpIndex: TToolButton;
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btnMoveDownIndex: TToolButton;
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StaticText1: TStaticText;
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pnlColumnsTop: TPanel;
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tlbColumns: TToolBar;
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btnAddColumn: TToolButton;
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btnRemoveColumn: TToolButton;
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btnMoveUpColumn: TToolButton;
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btnMoveDownColumn: TToolButton;
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SplitterTopBottom: TSplitter;
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tabCREATEcode: TTabSheet;
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tabALTERCode: TTabSheet;
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SynMemoCREATEcode: TSynMemo;
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SynMemoALTERcode: TSynMemo;
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popupIndexes: TPopupMenu;
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menuAddIndex: TMenuItem;
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menuAddIndexColumn: TMenuItem;
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menuRemoveIndex: TMenuItem;
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menuMoveUpIndex: TMenuItem;
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menuMoveDownIndex: TMenuItem;
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menuClearIndexes: TMenuItem;
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popupColumns: TPopupMenu;
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menuAddColumn: TMenuItem;
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menuRemoveColumn: TMenuItem;
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menuMoveUpColumn: TMenuItem;
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menuMoveDownColumn: TMenuItem;
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chkCharsetConvert: TCheckBox;
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N1: TMenuItem;
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menuCreateIndex: TMenuItem;
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menuAddToIndex: TMenuItem;
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tabForeignKeys: TTabSheet;
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tlbForeignKeys: TToolBar;
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btnAddForeignKey: TToolButton;
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btnRemoveForeignKey: TToolButton;
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btnClearForeignKeys: TToolButton;
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listForeignKeys: TVirtualStringTree;
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lblNoForeignKeys: TLabel;
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menuCopyColumnCell: TMenuItem;
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N2: TMenuItem;
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procedure editNameChange(Sender: TObject);
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procedure Modification(Sender: TObject);
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procedure btnAddColumnClick(Sender: TObject);
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procedure btnRemoveColumnClick(Sender: TObject);
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procedure listColumnsFocusChanged(Sender: TBaseVirtualTree; Node: PVirtualNode; Column: TColumnIndex);
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procedure btnHelpClick(Sender: TObject);
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procedure listColumnsGetText(Sender: TBaseVirtualTree; Node: PVirtualNode;
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Column: TColumnIndex; TextType: TVSTTextType; var CellText: WideString);
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procedure listColumnsEditing(Sender: TBaseVirtualTree; Node: PVirtualNode; Column: TColumnIndex; var Allowed: Boolean);
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procedure listColumnsNewText(Sender: TBaseVirtualTree; Node: PVirtualNode; Column: TColumnIndex; NewText: WideString);
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procedure btnMoveUpColumnClick(Sender: TObject);
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procedure btnMoveDownColumnClick(Sender: TObject);
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procedure listColumnsDragOver(Sender: TBaseVirtualTree; Source: TObject; Shift: TShiftState; State: TDragState;
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Pt: TPoint; Mode: TDropMode; var Effect: Integer; var Accept: Boolean);
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procedure listColumnsDragDrop(Sender: TBaseVirtualTree; Source: TObject; DataObject: IDataObject; Formats: TFormatArray;
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Shift: TShiftState; Pt: TPoint; var Effect: Integer; Mode: TDropMode);
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procedure listColumnsPaintText(Sender: TBaseVirtualTree; const TargetCanvas: TCanvas; Node: PVirtualNode;
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Column: TColumnIndex; TextType: TVSTTextType);
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procedure listColumnsCreateEditor(Sender: TBaseVirtualTree; Node: PVirtualNode; Column: TColumnIndex; out EditLink: IVTEditLink);
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procedure treeIndexesInitNode(Sender: TBaseVirtualTree; ParentNode, Node: PVirtualNode; var InitialStates: TVirtualNodeInitStates);
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procedure treeIndexesGetText(Sender: TBaseVirtualTree; Node: PVirtualNode; Column: TColumnIndex; TextType: TVSTTextType;
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var CellText: WideString);
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procedure treeIndexesBeforePaint(Sender: TBaseVirtualTree; TargetCanvas: TCanvas);
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procedure treeIndexesInitChildren(Sender: TBaseVirtualTree; Node: PVirtualNode; var ChildCount: Cardinal);
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procedure treeIndexesGetImageIndex(Sender: TBaseVirtualTree; Node: PVirtualNode; Kind: TVTImageKind; Column: TColumnIndex;
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var Ghosted: Boolean; var ImageIndex: Integer);
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procedure btnClearIndexesClick(Sender: TObject);
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procedure btnSaveClick(Sender: TObject);
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procedure editNumEditChange(Sender: TObject);
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procedure comboEngineSelect(Sender: TObject);
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procedure listColumnsClick(Sender: TObject);
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procedure listColumnsBeforeCellPaint(Sender: TBaseVirtualTree;
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TargetCanvas: TCanvas; Node: PVirtualNode; Column: TColumnIndex;
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CellPaintMode: TVTCellPaintMode; CellRect: TRect; var ContentRect: TRect);
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procedure listColumnsAfterCellPaint(Sender: TBaseVirtualTree;
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TargetCanvas: TCanvas; Node: PVirtualNode; Column: TColumnIndex;
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CellRect: TRect);
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procedure btnAddIndexClick(Sender: TObject);
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procedure treeIndexesDragOver(Sender: TBaseVirtualTree; Source: TObject;
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Shift: TShiftState; State: TDragState; Pt: TPoint; Mode: TDropMode;
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var Effect: Integer; var Accept: Boolean);
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procedure treeIndexesDragDrop(Sender: TBaseVirtualTree; Source: TObject;
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DataObject: IDataObject; Formats: TFormatArray; Shift: TShiftState;
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Pt: TPoint; var Effect: Integer; Mode: TDropMode);
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procedure treeIndexesNewText(Sender: TBaseVirtualTree; Node: PVirtualNode; Column: TColumnIndex; NewText: WideString);
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procedure treeIndexesEditing(Sender: TBaseVirtualTree; Node: PVirtualNode; Column: TColumnIndex; var Allowed: Boolean);
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procedure treeIndexesFocusChanged(Sender: TBaseVirtualTree; Node: PVirtualNode; Column: TColumnIndex);
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procedure treeIndexesCreateEditor(Sender: TBaseVirtualTree; Node: PVirtualNode; Column: TColumnIndex; out EditLink: IVTEditLink);
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procedure btnMoveUpIndexClick(Sender: TObject);
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procedure btnMoveDownIndexClick(Sender: TObject);
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procedure btnRemoveIndexClick(Sender: TObject);
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procedure menuAddIndexColumnClick(Sender: TObject);
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procedure PageControlMainChange(Sender: TObject);
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procedure chkCharsetConvertClick(Sender: TObject);
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procedure treeIndexesClick(Sender: TObject);
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procedure btnDiscardClick(Sender: TObject);
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procedure popupColumnsPopup(Sender: TObject);
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procedure AddIndexByColumn(Sender: TObject);
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procedure listColumnsGetImageIndex(Sender: TBaseVirtualTree;
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Node: PVirtualNode; Kind: TVTImageKind; Column: TColumnIndex;
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var Ghosted: Boolean; var ImageIndex: Integer);
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procedure listForeignKeysBeforePaint(Sender: TBaseVirtualTree; TargetCanvas: TCanvas);
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procedure listForeignKeysCreateEditor(Sender: TBaseVirtualTree;
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Node: PVirtualNode; Column: TColumnIndex; out EditLink: IVTEditLink);
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procedure listForeignKeysFocusChanged(Sender: TBaseVirtualTree;
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Node: PVirtualNode; Column: TColumnIndex);
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procedure listForeignKeysGetImageIndex(Sender: TBaseVirtualTree;
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Node: PVirtualNode; Kind: TVTImageKind; Column: TColumnIndex;
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var Ghosted: Boolean; var ImageIndex: Integer);
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procedure listForeignKeysGetText(Sender: TBaseVirtualTree;
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Node: PVirtualNode; Column: TColumnIndex; TextType: TVSTTextType;
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var CellText: WideString);
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procedure listForeignKeysNewText(Sender: TBaseVirtualTree;
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Node: PVirtualNode; Column: TColumnIndex; NewText: WideString);
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procedure btnClearForeignKeysClick(Sender: TObject);
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procedure btnAddForeignKeyClick(Sender: TObject);
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procedure btnRemoveForeignKeyClick(Sender: TObject);
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procedure listForeignKeysEditing(Sender: TBaseVirtualTree; Node: PVirtualNode; Column: TColumnIndex;
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var Allowed: Boolean);
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procedure listColumnsInitNode(Sender: TBaseVirtualTree; ParentNode, Node: PVirtualNode;
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var InitialStates: TVirtualNodeInitStates);
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procedure listColumnsGetNodeDataSize(Sender: TBaseVirtualTree; var NodeDataSize: Integer);
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procedure listColumnsNodeMoved(Sender: TBaseVirtualTree; Node: PVirtualNode);
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private
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{ Private declarations }
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FModified: Boolean;
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FLoaded: Boolean;
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FAlterTableName: WideString;
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CreateCodeValid, AlterCodeValid: Boolean;
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FColumns: TObjectList;
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Indexes, OldIndexes,
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DeletedForeignKeys: TWideStringList;
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ForeignKeys: TObjectList;
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procedure IndexesChange(Sender: TObject);
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procedure ValidateColumnControls;
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procedure ValidateIndexControls;
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procedure MoveFocusedIndexPart(NewIdx: Cardinal);
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procedure SetModified(Value: Boolean);
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procedure ResetModificationFlags;
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function ComposeCreateStatement: WideString;
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function ComposeAlterStatement: WideString;
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function GetIndexSQL(IndexList: TWideStringlist; idx: Integer): WideString;
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function GetForeignKeySQL(idx: Integer): WideString;
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property Modified: Boolean read FModified write SetModified;
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procedure UpdateSQLcode;
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function CellEditingAllowed(Node: PVirtualNode; Column: TColumnIndex): Boolean;
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function GetIndexIcon(idx: Integer): Integer;
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procedure GetIndexInfo(idx: Integer; var IndexName, IndexType: WideString);
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public
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{ Public declarations }
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constructor Create(AOwner: TComponent); override;
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destructor Destroy; override;
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procedure Init(AlterTableName: WideString='');
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end;
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// Column object, many of them in a TObjectList
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TColumn = class(TObject)
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Name, OldName: WideString;
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DataType: TDatatype;
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LengthSet: WideString;
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Unsigned, AllowNull: Boolean;
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DefaultType: TColumnDefaultType;
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DefaultText: WideString;
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Comment, Collation: WideString;
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FStatus: TEditingStatus;
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private
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procedure SetStatus(Value: TEditingStatus);
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public
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property Status: TEditingStatus read FStatus write SetStatus;
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end;
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PColumn = ^TColumn;
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// Helper object to manage foreign keys in a TObjectList
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TForeignKey = class(TObject)
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KeyName, ReferenceTable, OnUpdate, OnDelete: WideString;
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Columns, ForeignColumns: TWideStringList;
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Modified, Added: Boolean;
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constructor Create;
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destructor Destroy; override;
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end;
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implementation
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uses main;
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const
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PKEY = 'PRIMARY';
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KEY = 'KEY';
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UKEY = 'UNIQUE';
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FKEY = 'FULLTEXT';
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SKEY = 'SPATIAL';
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NotModifiedFlag : Byte = 0;
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ModifiedFlag : Byte = 1;
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{$R *.dfm}
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constructor TfrmTableEditor.Create(AOwner: TComponent);
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begin
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inherited Create(AOwner);
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// Do not set alClient via DFM! In conjunction with ExplicitXXX properties that
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// repeatedly breaks the GUI layout when you reload the project
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Align := alClient;
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PageControlMain.Height := GetRegValue(REGNAME_TABLEEDITOR_TABSHEIGHT, PageControlMain.Height);
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InheritFont(Font);
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FixVT(listColumns);
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FixVT(treeIndexes);
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FixVT(listForeignKeys);
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// Try the best to auto fit various column widths, respecting a custom DPI setting and a pulldown arrow
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listColumns.Header.Columns[2].Width := Mainform.Canvas.TextWidth('GEOMETRYCOLLECTION') + 6*listColumns.TextMargin;
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listColumns.Header.Columns[6].Width := Mainform.Canvas.TextWidth('AUTO_INCREMENT') + 4*listColumns.TextMargin;
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listColumns.Header.Columns[8].Width := Mainform.Canvas.TextWidth('macroman_general_ci') + 6*listColumns.TextMargin;
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// Overide column widths by custom values
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Mainform.RestoreListSetup(listColumns);
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Mainform.RestoreListSetup(treeIndexes);
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Mainform.RestoreListSetup(listForeignKeys);
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comboRowFormat.Items.CommaText := 'DEFAULT,DYNAMIC,FIXED,COMPRESSED,REDUNDANT,COMPACT';
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comboInsertMethod.Items.CommaText := 'NO,FIRST,LAST';
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FColumns := TObjectList.Create;
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Indexes := TWideStringList.Create;
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Indexes.OnChange := IndexesChange;
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OldIndexes := TWideStringList.Create;
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ForeignKeys := TObjectList.Create;
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DeletedForeignKeys := TWideStringList.Create;
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end;
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destructor TfrmTableEditor.Destroy;
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begin
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// Store GUI setup
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OpenRegistry;
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MainReg.WriteInteger(REGNAME_TABLEEDITOR_TABSHEIGHT, PageControlMain.Height);
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Mainform.SaveListSetup(listColumns);
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Mainform.SaveListSetup(treeIndexes);
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Mainform.SaveListSetup(listForeignKeys);
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Inherited;
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end;
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procedure TfrmTableEditor.Init(AlterTableName: WideString='');
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var
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Results: TMySQLQuery;
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Props: TWideStringlist;
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Col: TColumn;
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IndexType: String;
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LastKeyName, CreateTable, engine, ColSpec: WideString;
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rx, rxCol: TRegExpr;
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i: Integer;
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InLiteral: Boolean;
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ForeignKey: TForeignKey;
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begin
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Mainform.showstatus('Initializing editor ...');
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Screen.Cursor := crHourglass;
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FLoaded := False;
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// Start with "basic" tab activated when just called
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if FAlterTableName <> AlterTableName then
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PageControlMain.ActivePage := tabBasic;
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comboEngine.Items := Mainform.Connection.TableEngines;
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comboEngine.ItemIndex := comboEngine.Items.IndexOf(Mainform.Connection.TableEngineDefault);
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comboCollation.Items := Mainform.Connection.CollationList;
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FAlterTableName := AlterTableName;
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listColumns.BeginUpdate;
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FColumns.Clear;
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btnClearIndexesClick(Self);
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btnClearForeignKeysClick(Self);
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tabALTERcode.TabVisible := FAlterTableName <> '';
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MainForm.SetupSynEditors;
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if FAlterTableName = '' then begin
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// Creating new table
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editName.Clear;
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Mainform.SetEditorTabCaption(Self, '');
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memoComment.Text := '';
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editAutoInc.Text := '';
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editAvgRowLen.Text := '';
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editMaxRows.Text := '';
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chkChecksum.Checked := False;
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comboRowFormat.ItemIndex := 0;
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comboCollation.ItemIndex := comboCollation.Items.IndexOf(Mainform.Connection.GetVar('SHOW VARIABLES LIKE ''collation_database''', 1));
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memoUnionTables.Clear;
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comboInsertMethod.ItemIndex := -1;
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PageControlMain.ActivePage := tabBasic;
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end else begin
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// Editing existing table
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editName.Text := FAlterTableName;
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Mainform.SetEditorTabCaption(Self, FAlterTableName);
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Results := Mainform.Connection.GetResults('SHOW TABLE STATUS LIKE '+esc(FAlterTableName));
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if Results.ColExists(DBO_ENGINE) then
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engine := Results.Col(DBO_ENGINE)
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else
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engine := Results.Col(DBO_TYPE);
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comboEngine.ItemIndex := comboEngine.Items.IndexOf(engine);
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if Results.ColExists(DBO_COLLATION) then
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comboCollation.ItemIndex := comboCollation.Items.IndexOf(Results.Col(DBO_COLLATION));
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editAutoInc.Text := Results.Col(DBO_AUTOINC);
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editAvgRowLen.Text := Results.Col(DBO_AVGROWLEN);
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chkChecksum.Checked := Pos('checksum=1', LowerCase(Results.Col(DBO_CROPTIONS))) > 0;
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comboRowFormat.ItemIndex := comboRowFormat.Items.IndexOf(Results.Col(DBO_ROWFORMAT));
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FreeAndNil(Results);
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CreateTable := Mainform.Connection.GetVar('SHOW CREATE TABLE '+Mainform.mask(FAlterTableName), 1);
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rx := TRegExpr.Create;
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rx.ModifierI := True;
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rx.Expression := '\bUNION=\((.+)\)';
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if rx.Exec(CreateTable) then
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memoUnionTables.Text := rx.Match[1]
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else
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memoUnionTables.Clear;
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rx.Expression := '\bCOMMENT=''((.+)[^''])''';
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if rx.Exec(CreateTable) then
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memoComment.Text := WideStringReplace(rx.Match[1], '''''', '''', [rfReplaceAll])
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else
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memoComment.Clear;
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rx.ModifierS := False;
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rx.ModifierM := True;
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rx.Expression := '^\s+[`"]([^`"]+)[`"]\s(\w+)(.*)';
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rxCol := TRegExpr.Create;
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rxCol.ModifierI := True;
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if rx.Exec(CreateTable) then while true do begin
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ColSpec := rx.Match[3];
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// Strip trailing comma
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if (ColSpec <> '') and (ColSpec[Length(ColSpec)] = ',') then
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Delete(ColSpec, Length(ColSpec), 1);
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Col := TColumn.Create;
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FColumns.Add(Col);
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Col.Name := rx.Match[1];
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Col.Status := esUntouched;
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// Datatype
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Col.DataType := GetDatatypeByName(UpperCase(rx.Match[2]));
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// Length / Set
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// Various datatypes, e.g. BLOBs, don't have any length property
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InLiteral := False;
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if (ColSpec <> '') and (ColSpec[1] = '(') then begin
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for i:=2 to Length(ColSpec) do begin
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if (ColSpec[i] = ')') and (not InLiteral) then
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break;
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if ColSpec[i] = '''' then
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InLiteral := not InLiteral;
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end;
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Col.LengthSet := Copy(ColSpec, 2, i-2);
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Delete(ColSpec, 1, i);
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end;
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ColSpec := Trim(ColSpec);
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// Unsigned
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if UpperCase(Copy(ColSpec, 1, 8)) = 'UNSIGNED' then begin
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Col.Unsigned := True;
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Delete(ColSpec, 1, 9);
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end else
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Col.Unsigned := False;
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// Collation
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rxCol.Expression := '^(CHARACTER SET \w+\s+)?COLLATE (\w+)\b';
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if rxCol.Exec(ColSpec) then begin
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Col.Collation := rxCol.Match[2];
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Delete(ColSpec, 1, rxCol.MatchLen[0]+1);
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end;
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// Allow NULL
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if UpperCase(Copy(ColSpec, 1, 8)) = 'NOT NULL' then begin
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Col.AllowNull := False;
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Delete(ColSpec, 1, 9);
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end else begin
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Col.AllowNull := True;
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// Sporadically there is a "NULL" found at this position.
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if UpperCase(Copy(ColSpec, 1, 4)) = 'NULL' then
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Delete(ColSpec, 1, 5);
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end;
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// Default value
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Col.DefaultType := cdtNothing;
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Col.DefaultText := '';
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if UpperCase(Copy(ColSpec, 1, 14)) = 'AUTO_INCREMENT' then begin
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Col.DefaultType := cdtAutoInc;
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Col.DefaultText := 'AUTO_INCREMENT';
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Delete(ColSpec, 1, 15);
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end else if UpperCase(Copy(ColSpec, 1, 8)) = 'DEFAULT ' then begin
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Delete(ColSpec, 1, 8);
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if UpperCase(Copy(ColSpec, 1, 4)) = 'NULL' then begin
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Col.DefaultType := cdtNull;
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Col.DefaultText := 'NULL';
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Delete(ColSpec, 1, 5);
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end else if UpperCase(Copy(ColSpec, 1, 17)) = 'CURRENT_TIMESTAMP' then begin
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Col.DefaultType := cdtCurTS;
|
|
Col.DefaultText := 'CURRENT_TIMESTAMP';
|
|
Delete(ColSpec, 1, 18);
|
|
end else if ColSpec[1] = '''' then begin
|
|
InLiteral := True;
|
|
for i:=2 to Length(ColSpec) do begin
|
|
if ColSpec[i] = '''' then
|
|
InLiteral := not InLiteral
|
|
else if not InLiteral then
|
|
break;
|
|
end;
|
|
Col.DefaultType := cdtText;
|
|
Col.DefaultText := Copy(ColSpec, 2, i-3);
|
|
// A single quote gets escaped by single quote - remove the escape char - escaping is done in Save action afterwards
|
|
Col.DefaultText := WideStringReplace(Col.DefaultText, '''''', '''', [rfReplaceAll]);
|
|
Delete(ColSpec, 1, i);
|
|
end;
|
|
end;
|
|
if UpperCase(Copy(ColSpec, 1, 27)) = 'ON UPDATE CURRENT_TIMESTAMP' then begin
|
|
// Adjust default type
|
|
case Col.DefaultType of
|
|
cdtText: Col.DefaultType := cdtTextUpdateTS;
|
|
cdtNull: Col.DefaultType := cdtNullUpdateTS;
|
|
cdtCurTS: Col.DefaultType := cdtCurTSUpdateTS;
|
|
end;
|
|
Delete(ColSpec, 1, 28);
|
|
end;
|
|
|
|
// Comment
|
|
if UpperCase(Copy(ColSpec, 1, 9)) = 'COMMENT ''' then begin
|
|
InLiteral := True;
|
|
for i:=10 to Length(ColSpec) do begin
|
|
if ColSpec[i] = '''' then
|
|
InLiteral := not InLiteral
|
|
else if not InLiteral then
|
|
break;
|
|
end;
|
|
Col.Comment := Copy(ColSpec, 10, i-11);
|
|
Col.Comment := WideStringReplace(Col.Comment, '''''', '''', [rfReplaceAll]);
|
|
Delete(ColSpec, 1, i);
|
|
end;
|
|
|
|
if not rx.ExecNext then
|
|
break;
|
|
end;
|
|
FreeAndNil(rxCol);
|
|
|
|
// Detect foreign keys
|
|
// CONSTRAINT `FK1` FOREIGN KEY (`which`) REFERENCES `fk1` (`id`) ON DELETE SET NULL ON UPDATE CASCADE
|
|
rx.Expression := '\s+CONSTRAINT\s+[`"]([^`"]+)[`"]\sFOREIGN KEY\s+\(([^\)]+)\)\s+REFERENCES\s+[`"]([^\(]+)[`"]\s\(([^\)]+)\)(\s+ON DELETE (RESTRICT|CASCADE|SET NULL|NO ACTION))?(\s+ON UPDATE (RESTRICT|CASCADE|SET NULL|NO ACTION))?';
|
|
if rx.Exec(CreateTable) then while true do begin
|
|
ForeignKey := TForeignKey.Create;
|
|
ForeignKeys.Add(ForeignKey);
|
|
ForeignKey.KeyName := rx.Match[1];
|
|
ForeignKey.ReferenceTable := WideStringReplace(rx.Match[3], '`', '', [rfReplaceAll]);
|
|
ForeignKey.ReferenceTable := WideStringReplace(ForeignKey.ReferenceTable, '"', '', [rfReplaceAll]);
|
|
ExplodeQuotedList(rx.Match[2], ForeignKey.Columns);
|
|
ExplodeQuotedList(rx.Match[4], ForeignKey.ForeignColumns);
|
|
if rx.Match[6] <> '' then
|
|
ForeignKey.OnDelete := rx.Match[6];
|
|
if rx.Match[8] <> '' then
|
|
ForeignKey.OnUpdate := rx.Match[8];
|
|
if not rx.ExecNext then
|
|
break;
|
|
end;
|
|
FreeAndNil(rx);
|
|
|
|
Results := Mainform.Connection.GetResults('SHOW KEYS FROM '+Mainform.mask(FAlterTableName));
|
|
LastKeyName := '';
|
|
Props := nil;
|
|
while not Results.Eof do begin
|
|
if LastKeyName <> Results.Col('Key_name') then begin
|
|
Props := TWideStringlist.Create;
|
|
Props.OnChange := IndexesChange;
|
|
IndexType := Results.Col('Key_name');
|
|
if Results.ColExists('Index_type') and (
|
|
(Results.Col('Index_type') = FKEY) or (Results.Col('Index_type') = SKEY)) then
|
|
IndexType := Results.Col('Index_type')
|
|
else if (IndexType <> PKEY) and (Results.Col('Non_unique') = '0') then
|
|
IndexType := UKEY
|
|
else if Results.Col('Non_unique') = '1' then
|
|
IndexType := KEY;
|
|
Indexes.AddObject(Results.Col('Key_name')+REGDELIM+IndexType, Props);
|
|
end;
|
|
Props.Add(Results.Col('Column_name'));
|
|
if Results.Col('Sub_part') <> '' then
|
|
Props[Props.Count-1] := Props[Props.Count-1] + '('+Results.Col('Sub_part')+')';
|
|
LastKeyName := Results.Col('Key_name');
|
|
Results.Next;
|
|
end;
|
|
FreeAndNil(Results);
|
|
|
|
end;
|
|
listColumns.RootNodeCount := FColumns.Count;
|
|
DeInitializeVTNodes(listColumns);
|
|
listColumns.EndUpdate;
|
|
// Validate controls
|
|
comboEngineSelect(comboEngine);
|
|
ValidateColumnControls;
|
|
ValidateIndexControls;
|
|
ResetModificationFlags;
|
|
// Indicate change mechanisms can call their events now. See Modification().
|
|
FLoaded := True;
|
|
// Empty status panel
|
|
Mainform.showstatus;
|
|
Screen.Cursor := crDefault;
|
|
end;
|
|
|
|
|
|
procedure TfrmTableEditor.btnDiscardClick(Sender: TObject);
|
|
begin
|
|
// Reinit GUI, discarding changes
|
|
Init(FAlterTableName);
|
|
end;
|
|
|
|
|
|
procedure TfrmTableEditor.btnSaveClick(Sender: TObject);
|
|
var
|
|
sql: WideString;
|
|
i: Integer;
|
|
Specs: TWideStringlist;
|
|
Key: TForeignKey;
|
|
Col: TColumn;
|
|
FocusChangeEvent: procedure(Sender: TBaseVirtualTree; Node: PVirtualNode; Column: TColumnIndex) of object;
|
|
begin
|
|
// Create or alter table
|
|
try
|
|
if FAlterTableName = '' then
|
|
sql := ComposeCreateStatement
|
|
else begin
|
|
sql := ComposeAlterStatement;
|
|
// Special case for altered foreign keys: These have to be dropped in a seperate query
|
|
// otherwise the server would return error 121 "Duplicate key on write or update"
|
|
// See also http://dev.mysql.com/doc/refman/5.1/en/innodb-foreign-key-constraints.html :
|
|
// "You cannot add a foreign key and drop a foreign key in separate clauses of a single
|
|
// ALTER TABLE statement. Separate statements are required."
|
|
Specs := TWideStringList.Create;
|
|
for i:=0 to ForeignKeys.Count-1 do begin
|
|
Key := ForeignKeys[i] as TForeignKey;
|
|
if Key.Modified and (not Key.Added) then
|
|
Specs.Add('DROP FOREIGN KEY '+Mainform.mask(Key.KeyName));
|
|
end;
|
|
if Specs.Count > 0 then
|
|
Mainform.Connection.Query('ALTER TABLE '+Mainform.mask(FAlterTableName)+' '+ImplodeStr(', ', Specs));
|
|
end;
|
|
Mainform.Connection.Query(sql);
|
|
// Set table name for altering if Apply was clicked
|
|
FAlterTableName := editName.Text;
|
|
tabALTERcode.TabVisible := FAlterTableName <> '';
|
|
if chkCharsetConvert.Checked then begin
|
|
// Autoadjust column collations
|
|
for i:=0 to FColumns.Count-1 do begin
|
|
Col := FColumns[i] as TColumn;
|
|
if Col.Collation <> '' then
|
|
Col.Collation := comboCollation.Text;
|
|
end;
|
|
end;
|
|
ResetModificationFlags;
|
|
|
|
// Refresh db tree and reselect edited table node.
|
|
// Supress tab jumping, implicitely invoked by RefreshTreeDB.
|
|
FocusChangeEvent := Mainform.DBtree.OnFocusChanged;
|
|
Mainform.DBtree.OnFocusChanged := nil;
|
|
Mainform.RefreshTreeDB(Mainform.ActiveDatabase);
|
|
Mainform.DBtree.OnFocusChanged := FocusChangeEvent;
|
|
Mainform.ResetSelectedTableStuff;
|
|
Mainform.SelectDBObject(FAlterTableName, lntTable);
|
|
except
|
|
on E:Exception do
|
|
MessageDlg(E.Message, mtError, [mbOk], 0);
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure TfrmTableEditor.ResetModificationFlags;
|
|
var
|
|
i: Integer;
|
|
Parts: TWideStringlist;
|
|
Key: TForeignKey;
|
|
Col: TColumn;
|
|
begin
|
|
// Enable converting data for an existing table
|
|
chkCharsetConvertClick(comboCollation);
|
|
// Assist the user in auto unchecking this checkbox so data doesn't get converted more than once accidently
|
|
chkCharsetConvert.Checked := False;
|
|
// Reset modification flags of TEdits and TMemos
|
|
for i:=0 to ComponentCount-1 do
|
|
Components[i].Tag := NotModifiedFlag;
|
|
// Reset column changes
|
|
for i:=FColumns.Count-1 downto 0 do begin
|
|
Col := FColumns[i] as TColumn;
|
|
if Col.Status = esDeleted then
|
|
FColumns.Delete(i)
|
|
else begin
|
|
Col.Status := esUntouched;
|
|
Col.OldName := '';
|
|
end;
|
|
end;
|
|
// Copy index list so we have one to work with and one which can later be used to detect changes
|
|
OldIndexes.Clear;
|
|
for i:=0 to Indexes.Count-1 do begin
|
|
Parts := TWideStringlist.Create;
|
|
Parts.Assign(TWideStringlist(Indexes.Objects[i]));
|
|
OldIndexes.AddObject(Indexes[i], Parts);
|
|
end;
|
|
DeletedForeignKeys.Clear;
|
|
for i:=0 to ForeignKeys.Count-1 do begin
|
|
Key := ForeignKeys[i] as TForeignKey;
|
|
Key.Added := False;
|
|
Key.Modified := False;
|
|
end;
|
|
Modified := False;
|
|
end;
|
|
|
|
|
|
function TfrmTableEditor.ComposeAlterStatement: WideString;
|
|
var
|
|
Specs, IndexesComposed, OldIndexesComposed: TWideStringlist;
|
|
ColSpec, OldColName, IndexSQL: WideString;
|
|
i: Integer;
|
|
DropIt: Boolean;
|
|
Results: TMySQLQuery;
|
|
Key: TForeignKey;
|
|
Col, PreviousCol: PColumn;
|
|
ColObj: TColumn;
|
|
Node: PVirtualNode;
|
|
begin
|
|
// Compose ALTER query, called by buttons and for SQL code tab
|
|
Mainform.showstatus('Composing ALTER statement ...');
|
|
Screen.Cursor := crHourglass;
|
|
Specs := TWideStringlist.Create;
|
|
if editName.Text <> FAlterTableName then
|
|
Specs.Add('RENAME TO ' + Mainform.mask(editName.Text));
|
|
if memoComment.Tag = ModifiedFlag then
|
|
Specs.Add('COMMENT=' + esc(memoComment.Text));
|
|
if (comboCollation.Tag = ModifiedFlag) or (chkCharsetConvert.Checked) then
|
|
Specs.Add('COLLATE=' + comboCollation.Text);
|
|
if comboEngine.Tag = ModifiedFlag then
|
|
Specs.Add('ENGINE=' + comboEngine.Text);
|
|
if comboRowFormat.Tag = ModifiedFlag then
|
|
Specs.Add('ROW_FORMAT=' + comboRowFormat.Text);
|
|
if chkChecksum.Tag = ModifiedFlag then
|
|
Specs.Add('CHECKSUM=' + IntToStr(Integer(chkChecksum.Checked)));
|
|
if editAutoInc.Tag = ModifiedFlag then
|
|
Specs.Add('AUTO_INCREMENT=' + IntToStr(MakeInt(editAutoInc.Text)));
|
|
if editAvgRowLen.Tag = ModifiedFlag then
|
|
Specs.Add('AVG_ROW_LENGTH=' + IntToStr(MakeInt(editAvgRowLen.Text)));
|
|
if editMaxRows.Tag = ModifiedFlag then
|
|
Specs.Add('MAX_ROWS=' + IntToStr(MakeInt(editMaxRows.Text)));
|
|
if memoUnionTables.Enabled and (memoUnionTables.Tag = ModifiedFlag) and (memoUnionTables.Text <> '') then
|
|
Specs.Add('UNION=('+memoUnionTables.Text+')');
|
|
if comboInsertMethod.Enabled and (comboInsertMethod.Tag = ModifiedFlag) and (comboInsertMethod.Text <> '') then
|
|
Specs.Add('INSERT_METHOD='+comboInsertMethod.Text);
|
|
if chkCharsetConvert.Checked then begin
|
|
Results := Mainform.Connection.CollationTable;
|
|
if Assigned(Results) then while not Results.Eof do begin
|
|
if Results.Col('Collation') = comboCollation.Text then begin
|
|
Specs.Add('CONVERT TO CHARSET '+Results.Col('Charset'));
|
|
break;
|
|
end;
|
|
Results.Next;
|
|
end;
|
|
end;
|
|
|
|
// Update columns
|
|
EnableProgressBar(FColumns.Count + OldIndexes.Count + Indexes.Count);
|
|
Node := listColumns.GetFirst;
|
|
PreviousCol := nil;
|
|
while Assigned(Node) do begin
|
|
Mainform.ProgressBarStatus.StepIt;
|
|
Col := listColumns.GetNodeData(Node);
|
|
if Col.Status <> esUntouched then begin
|
|
ColSpec := Mainform.mask(Col.Name);
|
|
ColSpec := ColSpec + ' ' + Col.DataType.Name;
|
|
if Col.LengthSet <> '' then
|
|
ColSpec := ColSpec + '(' + Col.LengthSet + ')';
|
|
if Col.DataType.HasUnsigned and Col.Unsigned then
|
|
ColSpec := ColSpec + ' UNSIGNED';
|
|
if not Col.AllowNull then
|
|
ColSpec := ColSpec + ' NOT';
|
|
ColSpec := ColSpec + ' NULL';
|
|
if Col.DefaultType <> cdtNothing then begin
|
|
ColSpec := ColSpec + ' ' + GetColumnDefaultClause(Col.DefaultType, Col.DefaultText);
|
|
ColSpec := TrimRight(ColSpec); // Remove whitespace for columns without default value
|
|
end;
|
|
if Col.Comment <> '' then
|
|
ColSpec := ColSpec + ' COMMENT '+esc(Col.Comment);
|
|
if Col.Collation <> '' then begin
|
|
ColSpec := ColSpec + ' COLLATE ';
|
|
if chkCharsetConvert.Checked then
|
|
ColSpec := ColSpec + comboCollation.Text
|
|
else
|
|
ColSpec := ColSpec + Col.Collation;
|
|
end;
|
|
// Server version requirement, see http://dev.mysql.com/doc/refman/4.1/en/alter-table.html
|
|
if Mainform.Connection.ServerVersionInt >= 40001 then begin
|
|
if PreviousCol = nil then
|
|
ColSpec := ColSpec + ' FIRST'
|
|
else
|
|
ColSpec := ColSpec + ' AFTER '+Mainform.mask(PreviousCol.Name);
|
|
end;
|
|
if Col.Status = esModified then begin
|
|
OldColName := Col.OldName;
|
|
if OldColName = '' then
|
|
OldColName := Col.Name;
|
|
Specs.Add('CHANGE COLUMN '+Mainform.mask(OldColName) + ' ' + ColSpec);
|
|
end else if Col.Status in [esAddedUntouched, esAddedModified] then
|
|
Specs.Add('ADD COLUMN ' + ColSpec);
|
|
end;
|
|
PreviousCol := Col;
|
|
Node := listColumns.GetNextSibling(Node);
|
|
end;
|
|
|
|
// Deleted columns, not available as Node in above loop
|
|
for i:=0 to FColumns.Count-1 do begin
|
|
ColObj := FColumns[i] as TColumn;
|
|
if ColObj.Status = esDeleted then begin
|
|
OldColName := ColObj.OldName;
|
|
if OldColName = '' then
|
|
OldColName := ColObj.Name;
|
|
Specs.Add('DROP COLUMN '+Mainform.mask(OldColName));
|
|
end;
|
|
end;
|
|
|
|
// Prepare ADD INDEX ... clauses once so we don't call GetIndexSQL() too often
|
|
IndexesComposed := TWideStringlist.Create;
|
|
for i:=0 to Indexes.Count-1 do
|
|
IndexesComposed.Add(GetIndexSQL(Indexes, i));
|
|
OldIndexesComposed := TWideStringlist.Create;
|
|
for i:=0 to OldIndexes.Count-1 do
|
|
OldIndexesComposed.Add(GetIndexSQL(OldIndexes, i));
|
|
// Drop indexes
|
|
for i:=0 to OldIndexesComposed.Count-1 do begin
|
|
Mainform.ProgressBarStatus.StepIt;
|
|
DropIt := IndexesComposed.IndexOf(OldIndexesComposed[i]) = -1;
|
|
if not DropIt then
|
|
Continue;
|
|
IndexSQL := Copy(OldIndexes[i], LastPos(REGDELIM, OldIndexes[i])+1, Length(OldIndexes[i]));
|
|
if IndexSQL = PKEY then
|
|
IndexSQL := 'PRIMARY KEY'
|
|
else
|
|
IndexSQL := 'INDEX ' + Mainform.Mask(Copy(OldIndexes[i], 1, LastPos(REGDELIM, OldIndexes[i])-1));
|
|
Specs.Add('DROP '+IndexSQL);
|
|
end;
|
|
// Add changed or added indexes
|
|
for i:=0 to IndexesComposed.Count-1 do begin
|
|
Mainform.ProgressBarStatus.StepIt;
|
|
if (OldIndexesComposed.IndexOf(IndexesComposed[i]) = -1) and (IndexesComposed[i] <> '') then
|
|
Specs.Add('ADD '+IndexesComposed[i]);
|
|
end;
|
|
|
|
for i:=0 to DeletedForeignKeys.Count-1 do
|
|
Specs.Add('DROP FOREIGN KEY '+Mainform.mask(DeletedForeignKeys[i]));
|
|
|
|
for i:=0 to ForeignKeys.Count-1 do begin
|
|
Key := ForeignKeys[i] as TForeignKey;
|
|
if Key.Added or Key.Modified then
|
|
Specs.Add('ADD '+GetForeignKeySQL(i));
|
|
end;
|
|
|
|
Result := 'ALTER TABLE '+Mainform.mask(FAlterTableName) + CRLF + #9 + ImplodeStr(',' + CRLF + #9, Specs);
|
|
Result := Trim(Result);
|
|
FreeAndNil(Specs);
|
|
FreeAndNil(IndexesComposed);
|
|
FreeAndNil(OldIndexesComposed);
|
|
Mainform.showstatus;
|
|
Mainform.ProgressBarStatus.Hide;
|
|
Screen.Cursor := crDefault;
|
|
end;
|
|
|
|
|
|
function TfrmTableEditor.ComposeCreateStatement: WideString;
|
|
var
|
|
i, IndexCount: Integer;
|
|
Col: PColumn;
|
|
Node: PVirtualNode;
|
|
tmp: WideString;
|
|
begin
|
|
// Compose CREATE query, called by buttons and for SQL code tab
|
|
Result := 'CREATE TABLE '+Mainform.mask(editName.Text)+' ('+CRLF;
|
|
Node := listColumns.GetFirst;
|
|
while Assigned(Node) do begin
|
|
Col := listColumns.GetNodeData(Node);
|
|
Result := Result + #9 + Mainform.mask(Col.Name) + ' ' +Col.DataType.Name;
|
|
if Col.LengthSet <> '' then
|
|
Result := Result + '(' + Col.LengthSet + ')';
|
|
if Col.DataType.HasUnsigned and Col.Unsigned then
|
|
Result := Result + ' UNSIGNED';
|
|
if not Col.AllowNull then
|
|
Result := Result + ' NOT';
|
|
Result := Result + ' NULL';
|
|
if Col.DefaultType <> cdtNothing then begin
|
|
Result := Result + ' ' + GetColumnDefaultClause(Col.DefaultType, Col.DefaultText);
|
|
Result := TrimRight(Result); // Remove whitespace for columns without default value
|
|
end;
|
|
if Col.Comment <> '' then
|
|
Result := Result + ' COMMENT '+esc(Col.Comment);
|
|
if Col.Collation <> '' then
|
|
Result := Result + ' COLLATE '+Col.Collation;
|
|
Result := Result + ','+CRLF;
|
|
Node := listColumns.GetNextSibling(Node);
|
|
end;
|
|
|
|
IndexCount := 0;
|
|
for i:=0 to Indexes.Count - 1 do begin
|
|
tmp := GetIndexSQL(Indexes, i);
|
|
if tmp <> '' then begin
|
|
Result := Result + #9 + GetIndexSQL(Indexes, i) + ','+CRLF;
|
|
Inc(IndexCount);
|
|
end;
|
|
end;
|
|
|
|
for i:=0 to ForeignKeys.Count-1 do
|
|
Result := Result + #9 + GetForeignKeySQL(i) + ','+CRLF;
|
|
|
|
if Integer(listColumns.RootNodeCount) + IndexCount + ForeignKeys.Count > 0 then
|
|
Delete(Result, Length(Result)-2, 3);
|
|
|
|
Result := Result + CRLF + ')' + CRLF;
|
|
if memoComment.Text <> '' then
|
|
Result := Result + 'COMMENT='+esc(memoComment.Text) + CRLF;
|
|
if comboCollation.Text <> '' then
|
|
Result := Result + 'COLLATE='+comboCollation.Text + CRLF;
|
|
if comboEngine.Text <> '' then
|
|
Result := Result + 'ENGINE='+comboEngine.Text + CRLF;
|
|
if comboRowFormat.Text <> '' then
|
|
Result := Result + 'ROW_FORMAT='+comboRowFormat.Text + CRLF;
|
|
if chkChecksum.Checked then
|
|
Result := Result + 'CHECKSUM='+IntToStr(Integer(chkChecksum.Checked)) + CRLF;
|
|
if editAutoInc.Text <> '' then
|
|
Result := Result + 'AUTO_INCREMENT='+editAutoInc.Text + CRLF;
|
|
if editAvgRowLen.Text <> '' then
|
|
Result := Result + 'AVG_ROW_LENGTH='+editAvgRowLen.Text + CRLF;
|
|
if editMaxRows.Text <> '' then
|
|
Result := Result + 'MAX_ROWS='+editMaxRows.Text + CRLF;
|
|
if memoUnionTables.Enabled and (memoUnionTables.Text <> '') then
|
|
Result := Result + 'UNION=('+memoUnionTables.Text+')' + CRLF;
|
|
if comboInsertMethod.Enabled and (comboInsertMethod.Text <> '') then
|
|
Result := Result + 'INSERT_METHOD='+comboInsertMethod.Text + CRLF;
|
|
Result := Trim(Result);
|
|
end;
|
|
|
|
|
|
function TfrmTableEditor.GetIndexSQL(IndexList: TWideStringlist; idx: Integer): WideString;
|
|
var
|
|
IndexName, IndexType, ColName: WideString;
|
|
Parts: TWideStringlist;
|
|
i, p: Integer;
|
|
begin
|
|
Result := '';
|
|
Parts := TWideStringlist(IndexList.Objects[idx]);
|
|
// Supress SQL error trying index creation with 0 column
|
|
if Parts.Count = 0 then
|
|
Exit;
|
|
IndexName := Copy(IndexList[idx], 1, LastPos(REGDELIM, IndexList[idx])-1);
|
|
IndexType := Copy(IndexList[idx], LastPos(REGDELIM, IndexList[idx])+1, Length(IndexList[idx]));
|
|
if IndexType = PKEY then
|
|
Result := Result + 'PRIMARY KEY '
|
|
else begin
|
|
if IndexType <> KEY then
|
|
Result := Result + IndexType + ' ';
|
|
Result := Result + 'INDEX ' + Mainform.Mask(IndexName) + ' ';
|
|
end;
|
|
Result := Result + '(';
|
|
for i:=0 to Parts.Count - 1 do begin
|
|
ColName := Parts[i];
|
|
p := LastPos('(', ColName);
|
|
if p > 1 then
|
|
Result := Result + Mainform.Mask(Copy(ColName, 1, p-1)) + Copy(ColName, p, Length(ColName)-p+1)
|
|
else
|
|
Result := Result + Mainform.Mask(ColName);
|
|
Result := Result + ', ';
|
|
end;
|
|
if Parts.Count > 0 then
|
|
Delete(Result, Length(Result)-1, 2);
|
|
|
|
Result := Result + ')';
|
|
end;
|
|
|
|
|
|
function TfrmTableEditor.GetForeignKeySQL(idx: Integer): WideString;
|
|
var
|
|
Key: TForeignKey;
|
|
i: Integer;
|
|
begin
|
|
Key := ForeignKeys[idx] as TForeignKey;
|
|
Result := 'CONSTRAINT '+Mainform.mask(Key.KeyName)+' FOREIGN KEY (';
|
|
for i:=0 to Key.Columns.Count-1 do
|
|
Result := Result + Mainform.mask(Key.Columns[i]) + ', ';
|
|
if Key.Columns.Count > 0 then Delete(Result, Length(Result)-1, 2);
|
|
Result := Result + ') REFERENCES ' + Mainform.MaskMulti(Key.ReferenceTable) + ' (';
|
|
for i:=0 to Key.ForeignColumns.Count-1 do
|
|
Result := Result + Mainform.mask(Key.ForeignColumns[i]) + ', ';
|
|
if Key.ForeignColumns.Count > 0 then Delete(Result, Length(Result)-1, 2);
|
|
Result := Result + ')';
|
|
if Key.OnUpdate <> '' then
|
|
Result := Result + ' ON UPDATE ' + Key.OnUpdate;
|
|
if Key.OnDelete <> '' then
|
|
Result := Result + ' ON DELETE ' + Key.OnDelete;
|
|
end;
|
|
|
|
|
|
procedure TfrmTableEditor.editNameChange(Sender: TObject);
|
|
begin
|
|
// Name edited
|
|
editName.Font.Color := clWindowText;
|
|
editName.Color := clWindow;
|
|
try
|
|
ensureValidIdentifier( editName.Text );
|
|
except
|
|
// Invalid name
|
|
if editName.Text <> '' then begin
|
|
editName.Font.Color := clRed;
|
|
editName.Color := clYellow;
|
|
end;
|
|
end;
|
|
Modification(Sender);
|
|
end;
|
|
|
|
|
|
procedure TfrmTableEditor.Modification(Sender: TObject);
|
|
begin
|
|
// Memorize modified status
|
|
if FLoaded then begin
|
|
if Sender is TComponent then
|
|
TComponent(Sender).Tag := ModifiedFlag;
|
|
Modified := True;
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure TfrmTableEditor.btnAddColumnClick(Sender: TObject);
|
|
var
|
|
NewCol: TColumn;
|
|
FocusedCol: PColumn;
|
|
fn, NewNode: PVirtualNode;
|
|
idx: Integer;
|
|
begin
|
|
// Add new column after selected one
|
|
fn := listColumns.FocusedNode;
|
|
NewCol := TColumn.Create;
|
|
if Assigned(fn) then begin
|
|
idx := fn.Index+1;
|
|
// Copy properties from focused node
|
|
FocusedCol := listColumns.GetNodeData(fn);
|
|
NewCol.DataType := FocusedCol.DataType;
|
|
NewCol.LengthSet := FocusedCol.LengthSet;
|
|
NewCol.Unsigned := FocusedCol.Unsigned;
|
|
NewCol.AllowNull := FocusedCol.AllowNull;
|
|
// There can be only one
|
|
if FocusedCol.DefaultType = cdtAutoInc then begin
|
|
NewCol.DefaultType := cdtText;
|
|
NewCol.DefaultText := '0';
|
|
end else begin
|
|
NewCol.DefaultType := FocusedCol.DefaultType;
|
|
NewCol.DefaultText := FocusedCol.DefaultText;
|
|
end;
|
|
NewCol.Comment := FocusedCol.Comment;
|
|
NewCol.Collation := '';
|
|
end else begin
|
|
idx := listColumns.RootNodeCount;
|
|
NewCol.DataType := GetDatatypeByName('INT');
|
|
NewCol.LengthSet := '10';
|
|
NewCol.Unsigned := False;
|
|
NewCol.AllowNull := True;
|
|
NewCol.DefaultType := cdtNothing;
|
|
NewCol.DefaultText := '';
|
|
NewCol.Comment := '';
|
|
NewCol.Collation := '';
|
|
end;
|
|
NewCol.Name := 'Column '+IntToStr(idx+1);
|
|
FColumns.Insert(idx, NewCol);
|
|
NewNode := listColumns.InsertNode(fn, amInsertAfter, @NewCol);
|
|
NewCol.Status := esAddedUntouched;
|
|
SelectNode(listColumns, NewNode);
|
|
ValidateColumnControls;
|
|
listColumns.EditNode(NewNode, 1);
|
|
end;
|
|
|
|
|
|
procedure TfrmTableEditor.btnRemoveColumnClick(Sender: TObject);
|
|
var
|
|
Node, NodeFocus: PVirtualNode;
|
|
Col: PColumn;
|
|
begin
|
|
// Remove selected column(s)
|
|
Node := listColumns.GetFirstSelected;
|
|
while Assigned(Node) do begin
|
|
Col := listColumns.GetNodeData(Node);
|
|
if Col.OldName <> '' then begin
|
|
Col.Name := Col.OldName;
|
|
Col.OldName := '';
|
|
end;
|
|
Col.Status := esDeleted;
|
|
Node := listColumns.GetNextSelected(Node);
|
|
end;
|
|
// Find next unselected node for new focus
|
|
Node := listColumns.FocusedNode;
|
|
NodeFocus := nil;
|
|
while Assigned(Node) do begin
|
|
if not (vsSelected in Node.States) then begin
|
|
NodeFocus := Node;
|
|
break;
|
|
end;
|
|
Node := listColumns.GetNextSibling(Node);
|
|
end;
|
|
|
|
listColumns.DeleteSelectedNodes;
|
|
|
|
if not Assigned(NodeFocus) then
|
|
NodeFocus := listColumns.GetLast;
|
|
if Assigned(NodeFocus) then
|
|
SelectNode(listColumns, NodeFocus.Index);
|
|
ValidateColumnControls;
|
|
end;
|
|
|
|
|
|
procedure TfrmTableEditor.btnMoveUpColumnClick(Sender: TObject);
|
|
begin
|
|
// Move column up
|
|
listColumns.MoveTo(listColumns.FocusedNode, listColumns.GetPreviousSibling(listColumns.FocusedNode), amInsertBefore, False);
|
|
ValidateColumnControls;
|
|
end;
|
|
|
|
|
|
procedure TfrmTableEditor.btnMoveDownColumnClick(Sender: TObject);
|
|
begin
|
|
// Move column down
|
|
listColumns.MoveTo(listColumns.FocusedNode, listColumns.GetNextSibling(listColumns.FocusedNode), amInsertAfter, False);
|
|
ValidateColumnControls;
|
|
end;
|
|
|
|
|
|
procedure TfrmTableEditor.listColumnsDragOver(Sender: TBaseVirtualTree;
|
|
Source: TObject; Shift: TShiftState; State: TDragState; Pt: TPoint;
|
|
Mode: TDropMode; var Effect: Integer; var Accept: Boolean);
|
|
begin
|
|
Accept := (Source = Sender) and (Mode <> dmNowhere);
|
|
// Not sure what this effect does, probably show a specific mouse cursor?
|
|
Effect := DROPEFFECT_MOVE;
|
|
end;
|
|
|
|
|
|
procedure TfrmTableEditor.listColumnsDragDrop(Sender: TBaseVirtualTree;
|
|
Source: TObject; DataObject: IDataObject; Formats: TFormatArray;
|
|
Shift: TShiftState; Pt: TPoint; var Effect: Integer; Mode: TDropMode);
|
|
var
|
|
Node: PVirtualNode;
|
|
AttachMode: TVTNodeAttachMode;
|
|
begin
|
|
Node := Sender.GetNodeAt(Pt.X, Pt.Y);
|
|
if Assigned(Node) then begin
|
|
case Mode of
|
|
dmAbove, dmOnNode: AttachMode := amInsertBefore;
|
|
else AttachMode := amInsertAfter;
|
|
end;
|
|
listColumns.MoveTo(listColumns.FocusedNode, Node, AttachMode, False);
|
|
ValidateColumnControls;
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure TfrmTableEditor.listColumnsBeforeCellPaint(Sender: TBaseVirtualTree;
|
|
TargetCanvas: TCanvas; Node: PVirtualNode; Column: TColumnIndex;
|
|
CellPaintMode: TVTCellPaintMode; CellRect: TRect; var ContentRect: TRect);
|
|
begin
|
|
// Darken cell background to signalize it doesn't allow length/set
|
|
// Exclude non editable checkbox columns - grey looks ugly there.
|
|
if (not CellEditingAllowed(Node, Column)) and (not (Column in [4, 5])) then begin
|
|
TargetCanvas.Brush.Color := clBtnFace;
|
|
TargetCanvas.FillRect(CellRect);
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure TfrmTableEditor.listColumnsAfterCellPaint(Sender: TBaseVirtualTree;
|
|
TargetCanvas: TCanvas; Node: PVirtualNode; Column: TColumnIndex;
|
|
CellRect: TRect);
|
|
var
|
|
Col: PColumn;
|
|
ImageIndex, X, Y: Integer;
|
|
VT: TVirtualStringTree;
|
|
begin
|
|
// Paint checkbox image in certain columns
|
|
// while restricting "Allow NULL" checkbox to numeric datatypes
|
|
if (Column in [4, 5]) and CellEditingAllowed(Node, Column) then begin
|
|
Col := Sender.GetNodeData(Node);
|
|
if (Col.Unsigned and (Column=4)) or (Col.AllowNull and (Column=5)) then ImageIndex := 128
|
|
else ImageIndex := 127;
|
|
VT := TVirtualStringTree(Sender);
|
|
X := CellRect.Left + (VT.Header.Columns[Column].Width div 2) - (VT.Images.Width div 2);
|
|
Y := CellRect.Top + Integer(VT.NodeHeight[Node] div 2) - (VT.Images.Height div 2);
|
|
VT.Images.Draw(TargetCanvas, X, Y, ImageIndex);
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure TfrmTableEditor.listColumnsFocusChanged(Sender: TBaseVirtualTree;
|
|
Node: PVirtualNode; Column: TColumnIndex);
|
|
begin
|
|
// Column focus changed
|
|
ValidateColumnControls;
|
|
end;
|
|
|
|
|
|
procedure TfrmTableEditor.ValidateColumnControls;
|
|
var Node: PVirtualNode;
|
|
begin
|
|
Node := listColumns.FocusedNode;
|
|
btnRemoveColumn.Enabled := listColumns.SelectedCount > 0;
|
|
btnMoveUpColumn.Enabled := Assigned(Node) and (Node <> listColumns.GetFirst);
|
|
btnMoveDownColumn.Enabled := Assigned(Node) and (Node <> listColumns.GetLast);
|
|
|
|
menuRemoveColumn.Enabled := btnRemoveColumn.Enabled;
|
|
menuMoveUpColumn.Enabled := btnMoveUpColumn.Enabled;
|
|
menuMoveDownColumn.Enabled := btnMoveDownColumn.Enabled;
|
|
end;
|
|
|
|
|
|
procedure TfrmTableEditor.listColumnsEditing(Sender: TBaseVirtualTree;
|
|
Node: PVirtualNode; Column: TColumnIndex; var Allowed: Boolean);
|
|
begin
|
|
// Allow text editing? Explicitely block that in checkbox columns
|
|
Allowed := CellEditingAllowed(Node, Column) and (not (Column in [4,5]));
|
|
end;
|
|
|
|
|
|
function TfrmTableEditor.CellEditingAllowed(Node: PVirtualNode; Column: TColumnIndex): Boolean;
|
|
var
|
|
Col: PColumn;
|
|
begin
|
|
Col := listColumns.GetNodeData(Node);
|
|
case Column of
|
|
// No editor for very first column and checkbox columns
|
|
0: Result := False;
|
|
3: Result := Col.DataType.HasLength;
|
|
4: Result := Col.DataType.HasUnsigned;
|
|
// No editing of collation allowed if "Convert data" was checked
|
|
8: Result := not chkCharsetConvert.Checked;
|
|
else Result := True;
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure TfrmTableEditor.listColumnsGetText(Sender: TBaseVirtualTree;
|
|
Node: PVirtualNode; Column: TColumnIndex; TextType: TVSTTextType;
|
|
var CellText: WideString);
|
|
var
|
|
Col: PColumn;
|
|
begin
|
|
// Display column text
|
|
Col := Sender.GetNodeData(Node);
|
|
case Column of
|
|
0: CellText := IntToStr(Node.Index+1);
|
|
1: CellText := Col.Name;
|
|
2: CellText := Col.DataType.Name;
|
|
3: CellText := Col.LengthSet;
|
|
4, 5: CellText := ''; // Checkbox
|
|
6: case Col.DefaultType of
|
|
cdtNothing: CellText := '';
|
|
cdtText, cdtTextUpdateTS: CellText := Col.DefaultText;
|
|
cdtNull, cdtNullUpdateTS: CellText := 'NULL';
|
|
cdtCurTS, cdtCurTSUpdateTS: CellText := 'CURRENT_TIMESTAMP';
|
|
cdtAutoInc: CellText := 'AUTO_INCREMENT';
|
|
end;
|
|
7: CellText := Col.Comment;
|
|
8: begin
|
|
CellText := Col.Collation;
|
|
if (CellText <> '') and (chkCharsetConvert.Checked) then
|
|
CellText := comboCollation.Text;
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure TfrmTableEditor.listColumnsInitNode(Sender: TBaseVirtualTree; ParentNode, Node: PVirtualNode;
|
|
var InitialStates: TVirtualNodeInitStates);
|
|
var
|
|
Col: PColumn;
|
|
begin
|
|
// Bind data to node
|
|
Col := Sender.GetNodeData(Node);
|
|
Col^ := FColumns[Node.Index] as TColumn;
|
|
end;
|
|
|
|
|
|
procedure TfrmTableEditor.listColumnsGetImageIndex(Sender: TBaseVirtualTree;
|
|
Node: PVirtualNode; Kind: TVTImageKind; Column: TColumnIndex;
|
|
var Ghosted: Boolean; var ImageIndex: Integer);
|
|
var
|
|
IndexName, IndexType: WideString;
|
|
Props: TWideStringlist;
|
|
i: Integer;
|
|
Col: PColumn;
|
|
begin
|
|
// Primary key icon
|
|
if Column <> 0 then Exit;
|
|
Col := Sender.GetNodeData(Node);
|
|
|
|
for i:=0 to Indexes.Count-1 do begin
|
|
GetIndexInfo(i, IndexName, IndexType);
|
|
Props := TWideStringlist(Indexes.Objects[i]);
|
|
if Props.IndexOf(Col.Name) > -1 then begin
|
|
if IndexType = PKEY then ImageIndex := ICONINDEX_PRIMARYKEY
|
|
else if IndexType = UKEY then ImageIndex := ICONINDEX_UNIQUEKEY
|
|
else if IndexType = KEY then ImageIndex := ICONINDEX_INDEXKEY
|
|
else if IndexType = FKEY then ImageIndex := ICONINDEX_FULLTEXTKEY
|
|
else if IndexType = SKEY then ImageIndex := ICONINDEX_SPATIALKEY;
|
|
end;
|
|
// Priority for PK columns. We cannot display more than one icon anyway.
|
|
if ImageIndex > -1 then
|
|
break;
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure TfrmTableEditor.listColumnsGetNodeDataSize(Sender: TBaseVirtualTree; var NodeDataSize: Integer);
|
|
begin
|
|
NodeDataSize := SizeOf(TColumn);
|
|
end;
|
|
|
|
|
|
procedure TfrmTableEditor.listColumnsPaintText(Sender: TBaseVirtualTree;
|
|
const TargetCanvas: TCanvas; Node: PVirtualNode; Column: TColumnIndex;
|
|
TextType: TVSTTextType);
|
|
var
|
|
TextColor: TColor;
|
|
i: Integer;
|
|
IndexName, IndexType: WideString;
|
|
Col: PColumn;
|
|
begin
|
|
Col := Sender.GetNodeData(Node);
|
|
// Bold font for primary key columns
|
|
for i:=0 to Indexes.Count-1 do begin
|
|
GetIndexInfo(i, IndexName, IndexType);
|
|
if IndexType = PKEY then begin
|
|
if TWideStringlist(Indexes.Objects[i]).IndexOf(Col.Name) > -1 then
|
|
TargetCanvas.Font.Style := TargetCanvas.Font.Style + [fsBold];
|
|
break;
|
|
end;
|
|
end;
|
|
|
|
// No specific colors for selected nodes, would interfere with blue selection background
|
|
if vsSelected in Node.States then Exit;
|
|
// Break early if nothing to do
|
|
if not (Column in [2, 6]) then Exit;
|
|
|
|
// Give datatype column specific color, as set in preferences
|
|
TextColor := TargetCanvas.Font.Color;
|
|
case Column of
|
|
2: TextColor := DatatypeCategories[Integer(Col.DataType.Category)].Color;
|
|
|
|
6: case Col.DefaultType of
|
|
cdtNull, cdtNullUpdateTS:
|
|
TextColor := clGray;
|
|
cdtCurTS, cdtCurTSUpdateTS:
|
|
TextColor := DatatypeCategories[Integer(dtcTemporal)].Color;
|
|
cdtAutoInc:
|
|
TextColor := clNavy;
|
|
end;
|
|
end;
|
|
TargetCanvas.Font.Color := TextColor;
|
|
end;
|
|
|
|
|
|
procedure TfrmTableEditor.listColumnsNewText(Sender: TBaseVirtualTree;
|
|
Node: PVirtualNode; Column: TColumnIndex; NewText: WideString);
|
|
var
|
|
i: Integer;
|
|
Col: PColumn;
|
|
begin
|
|
// Column property edited
|
|
Col := Sender.GetNodeData(Node);
|
|
case Column of
|
|
1: begin
|
|
for i:=0 to FColumns.Count-1 do begin
|
|
if TColumn(FColumns[i]).Name = NewText then begin
|
|
MessageDlg('Column "'+NewText+'" already exists.', mtError, [mbOk], 0);
|
|
Exit;
|
|
end;
|
|
end;
|
|
Col.OldName := Col.Name;
|
|
Col.Name := NewText;
|
|
end;
|
|
2: begin
|
|
Col.DataType := GetDatatypeByName(NewText);
|
|
// Reset length/set for column types which don't support that
|
|
if not Col.DataType.HasLength then
|
|
Col.LengthSet := '';
|
|
// Suggest length/set if required
|
|
if Col.DataType.RequiresLength and (Col.LengthSet = '') then
|
|
Col.LengthSet := Col.DataType.DefLengthSet;
|
|
end;
|
|
3: Col.LengthSet := NewText;
|
|
// 4 + 5 are checkboxes - handled in OnClick
|
|
6: begin
|
|
Col.DefaultText := NewText;
|
|
Col.DefaultType := GetColumnDefaultType(Col.DefaultText);
|
|
end;
|
|
7: Col.Comment := NewText;
|
|
8: Col.Collation := NewText;
|
|
end;
|
|
Col.Status := esModified;
|
|
end;
|
|
|
|
|
|
procedure TfrmTableEditor.listColumnsNodeMoved(Sender: TBaseVirtualTree; Node: PVirtualNode);
|
|
var
|
|
Col: PColumn;
|
|
begin
|
|
Col := Sender.GetNodeData(Node);
|
|
Col.Status := esModified;
|
|
end;
|
|
|
|
|
|
procedure TfrmTableEditor.listColumnsClick(Sender: TObject);
|
|
var
|
|
VT: TVirtualStringTree;
|
|
Col: PColumn;
|
|
Click: THitInfo;
|
|
begin
|
|
// Handle click event
|
|
VT := Sender as TVirtualStringTree;
|
|
VT.GetHitTestInfoAt(Mouse.CursorPos.X-VT.ClientOrigin.X, Mouse.CursorPos.Y-VT.ClientOrigin.Y, True, Click);
|
|
if not Assigned(Click.HitNode) then
|
|
Exit;
|
|
// For checkboxes, cell editors are disabled, instead toggle their state
|
|
if CellEditingAllowed(Click.HitNode, Click.HitColumn) then begin
|
|
Col := VT.GetNodeData(Click.HitNode);
|
|
case Click.HitColumn of
|
|
4: begin
|
|
Col.Unsigned := not Col.Unsigned;
|
|
Col.Status := esModified;
|
|
VT.InvalidateNode(Click.HitNode);
|
|
end;
|
|
5: begin
|
|
Col.AllowNull := not Col.AllowNull;
|
|
// Switch default value from NULL to Text if Allow Null is off
|
|
if (not Col.AllowNull) and (Col.DefaultType in [cdtNull, cdtNullUpdateTS]) then
|
|
Col.DefaultType := cdtText;
|
|
Col.Status := esModified;
|
|
VT.InvalidateNode(Click.HitNode);
|
|
end;
|
|
else begin
|
|
// All other cells go into edit mode please
|
|
// Explicitely done on OnClick, not in OnFocusChanged which seemed annoying for keyboard users
|
|
if Assigned(Click.HitNode) and (Click.HitColumn > NoColumn) and (hiOnItemLabel in Click.HitPositions) then
|
|
VT.EditNode(Click.HitNode, Click.HitColumn);
|
|
end;
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure TfrmTableEditor.listColumnsCreateEditor(Sender: TBaseVirtualTree;
|
|
Node: PVirtualNode; Column: TColumnIndex; out EditLink: IVTEditLink);
|
|
var
|
|
VT: TVirtualStringTree;
|
|
EnumEditor: TEnumEditorLink;
|
|
DefaultEditor: TColumnDefaultEditorLink;
|
|
DatatypeEditor: TDatatypeEditorLink;
|
|
Col: PColumn;
|
|
begin
|
|
// Start cell editor
|
|
VT := Sender as TVirtualStringTree;
|
|
Col := Sender.GetNodeData(Node);
|
|
case Column of
|
|
2: begin // Datatype pulldown
|
|
DatatypeEditor := TDatatypeEditorLink.Create(VT);
|
|
DatatypeEditor.Datatype := Col.DataType.Index;
|
|
EditLink := DataTypeEditor;
|
|
end;
|
|
8: begin // Collation pulldown
|
|
EnumEditor := TEnumEditorLink.Create(VT);
|
|
EnumEditor.ValueList := TWideStringList.Create;
|
|
EnumEditor.ValueList.Text := Mainform.Connection.CollationList.Text;
|
|
EnumEditor.ValueList.Insert(0, '');
|
|
EditLink := EnumEditor;
|
|
end;
|
|
6: begin
|
|
DefaultEditor := TColumnDefaultEditorLink.Create(VT);
|
|
DefaultEditor.DefaultText := Col.DefaultText;
|
|
DefaultEditor.DefaultType := Col.DefaultType;
|
|
EditLink := DefaultEditor;
|
|
end
|
|
else
|
|
EditLink := TInplaceEditorLink.Create(VT);
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure TfrmTableEditor.SetModified(Value: Boolean);
|
|
begin
|
|
// Some value has changed
|
|
FModified := Value;
|
|
btnSave.Enabled := FModified;
|
|
btnDiscard.Enabled := FModified;
|
|
CreateCodeValid := False;
|
|
AlterCodeValid := False;
|
|
UpdateSQLcode;
|
|
end;
|
|
|
|
|
|
procedure TfrmTableEditor.editNumEditChange(Sender: TObject);
|
|
var
|
|
ed: TEdit;
|
|
ShouldBe: String;
|
|
CursorPos: Integer;
|
|
begin
|
|
// Only numbers allowed in this TEdit
|
|
Modification(Sender);
|
|
ed := Sender as TEdit;
|
|
ShouldBe := CleanupNumber(ed.Text);
|
|
if (ed.Text = ShouldBe) or (ed.Text = '') then Exit;
|
|
MessageBeep(MB_ICONEXCLAMATION);
|
|
CursorPos := ed.SelStart;
|
|
ed.OnChange := nil;
|
|
ed.Text := ShouldBe;
|
|
ed.SelStart := CursorPos;
|
|
ed.OnChange := editNumEditChange;
|
|
end;
|
|
|
|
|
|
procedure TfrmTableEditor.comboEngineSelect(Sender: TObject);
|
|
var
|
|
IsMerge: Boolean;
|
|
begin
|
|
// Enable/disable engine specific option controls
|
|
IsMerge := (Sender as TComboBox).Text = 'MRG_MYISAM';
|
|
memoUnionTables.Enabled := IsMerge;
|
|
comboInsertMethod.Enabled := IsMerge;
|
|
Modification(Sender);
|
|
end;
|
|
|
|
|
|
procedure TfrmTableEditor.IndexesChange(Sender: TObject);
|
|
begin
|
|
Modification(Sender);
|
|
treeIndexes.Invalidate;
|
|
end;
|
|
|
|
|
|
procedure TfrmTableEditor.btnAddIndexClick(Sender: TObject);
|
|
var
|
|
IndexParts: TWideStringlist;
|
|
Name: WideString;
|
|
begin
|
|
// Add new index
|
|
IndexParts := TWideStringlist.Create;
|
|
IndexParts.OnChange := IndexesChange;
|
|
Name := 'Index '+IntToStr(Indexes.Count+1);
|
|
Indexes.AddObject(Name+REGDELIM+KEY, IndexParts);
|
|
SelectNode(treeIndexes, Indexes.Count-1);
|
|
end;
|
|
|
|
|
|
procedure TfrmTableEditor.menuAddIndexColumnClick(Sender: TObject);
|
|
var
|
|
IndexParts: TWideStringlist;
|
|
Node: PVirtualNode;
|
|
i, j, p: Integer;
|
|
Col, NewCol: WideString;
|
|
ColExists: Boolean;
|
|
Column: TColumn;
|
|
begin
|
|
// Add column to index
|
|
Node := treeIndexes.FocusedNode;
|
|
if not Assigned(Node) then
|
|
Exit;
|
|
if treeIndexes.GetNodeLevel(Node) = 1 then
|
|
Node := Node.Parent;
|
|
IndexParts := TWideStringlist(Indexes.Objects[Node.Index]);
|
|
// Find the first unused column for that index as default
|
|
ColExists := False;
|
|
NewCol := '';
|
|
for i:=0 to FColumns.Count-1 do begin
|
|
Column := FColumns[i] as TColumn;
|
|
if Column.Status = esDeleted then
|
|
Continue;
|
|
for j:=0 to IndexParts.Count - 1 do begin
|
|
Col := IndexParts[j];
|
|
p := LastPos('(', Col);
|
|
if p > 0 then
|
|
Col := Copy(Col, 0, p-1);
|
|
ColExists := Col = Column.Name;
|
|
if ColExists then
|
|
break;
|
|
end;
|
|
if not ColExists then begin
|
|
NewCol := Column.Name;
|
|
break;
|
|
end;
|
|
end;
|
|
treeIndexes.AddChild(Node);
|
|
IndexParts.Add(NewCol);
|
|
SelectNode(treeIndexes, IndexParts.Count-1, Node);
|
|
end;
|
|
|
|
|
|
procedure TfrmTableEditor.btnRemoveIndexClick(Sender: TObject);
|
|
var
|
|
IndexParts: TWideStringlist;
|
|
idx: Integer;
|
|
NewSelectNode: PVirtualNode;
|
|
begin
|
|
// Remove index or part
|
|
case treeIndexes.GetNodeLevel(treeIndexes.FocusedNode) of
|
|
0: begin
|
|
idx := treeIndexes.FocusedNode.Index;
|
|
Indexes.Objects[idx].Free;
|
|
Indexes.Delete(idx);
|
|
end;
|
|
1: begin
|
|
idx := treeIndexes.FocusedNode.Parent.Index;
|
|
IndexParts := TWideStringlist(Indexes.Objects[idx]);
|
|
IndexParts.Delete(treeIndexes.FocusedNode.Index);
|
|
treeIndexes.DeleteNode(treeIndexes.FocusedNode);
|
|
end;
|
|
end;
|
|
NewSelectNode := treeIndexes.GetPreviousVisible(treeIndexes.FocusedNode);
|
|
if Assigned(NewSelectNode) then
|
|
SelectNode(treeIndexes, NewSelectNode.Index, NewSelectNode.Parent);
|
|
end;
|
|
|
|
|
|
procedure TfrmTableEditor.btnClearIndexesClick(Sender: TObject);
|
|
var i: Integer;
|
|
begin
|
|
// Clear all indexes
|
|
// Column data gets freed below - end any editor which could cause AV's
|
|
if treeIndexes.IsEditing then
|
|
treeIndexes.CancelEditNode;
|
|
for i := 0 to Indexes.Count - 1 do
|
|
Indexes.Objects[i].Free;
|
|
Indexes.Clear;
|
|
treeIndexes.Clear;
|
|
end;
|
|
|
|
|
|
procedure TfrmTableEditor.treeIndexesGetImageIndex(Sender: TBaseVirtualTree;
|
|
Node: PVirtualNode; Kind: TVTImageKind; Column: TColumnIndex;
|
|
var Ghosted: Boolean; var ImageIndex: Integer);
|
|
var
|
|
IndexType: String;
|
|
VT: TVirtualStringTree;
|
|
begin
|
|
// Icon image showing type of index
|
|
VT := Sender as TVirtualStringTree;
|
|
if Column <> 0 then
|
|
Exit;
|
|
case VT.GetNodeLevel(Node) of
|
|
0: begin
|
|
IndexType := VT.Text[Node, 1];
|
|
ImageIndex := GetIndexIcon(Node.Index);
|
|
end;
|
|
1: ImageIndex := 42;
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure TfrmTableEditor.treeIndexesGetText(Sender: TBaseVirtualTree;
|
|
Node: PVirtualNode; Column: TColumnIndex; TextType: TVSTTextType;
|
|
var CellText: WideString);
|
|
var
|
|
IndexProps: TWideStringlist;
|
|
IndexName, IndexType: WideString;
|
|
begin
|
|
// Index tree showing cell text
|
|
case Sender.GetNodeLevel(Node) of
|
|
0: begin
|
|
GetIndexInfo(Node.Index, IndexName, IndexType);
|
|
case Column of
|
|
0: if IndexType = PKEY then
|
|
CellText := IndexType + ' KEY' // Fixed name "PRIMARY KEY", cannot be changed
|
|
else
|
|
CellText := IndexName;
|
|
1: CellText := IndexType;
|
|
end;
|
|
end;
|
|
1: case Column of
|
|
0: begin
|
|
IndexProps := TWideStringlist(Indexes.Objects[Node.Parent.Index]);
|
|
CellText := IndexProps[Node.Index];
|
|
end;
|
|
else CellText := '';
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure TfrmTableEditor.treeIndexesInitChildren(Sender: TBaseVirtualTree;
|
|
Node: PVirtualNode; var ChildCount: Cardinal);
|
|
var
|
|
IndexParts: TWideStringlist;
|
|
begin
|
|
// Tell number of columns contained in index
|
|
IndexParts := TWideStringlist(Indexes.Objects[Node.Index]);
|
|
ChildCount := IndexParts.Count;
|
|
end;
|
|
|
|
|
|
procedure TfrmTableEditor.treeIndexesInitNode(Sender: TBaseVirtualTree;
|
|
ParentNode, Node: PVirtualNode; var InitialStates: TVirtualNodeInitStates);
|
|
begin
|
|
// Show plus sign on first level nodes
|
|
if Sender.GetNodeLevel(Node) = 0 then
|
|
Include( InitialStates, ivsHasChildren);
|
|
end;
|
|
|
|
|
|
procedure TfrmTableEditor.treeIndexesFocusChanged(Sender: TBaseVirtualTree;
|
|
Node: PVirtualNode; Column: TColumnIndex);
|
|
begin
|
|
ValidateIndexControls;
|
|
end;
|
|
|
|
|
|
procedure TfrmTableEditor.treeIndexesClick(Sender: TObject);
|
|
var
|
|
VT: TVirtualStringTree;
|
|
Click: THitInfo;
|
|
begin
|
|
// Handle click event
|
|
VT := Sender as TVirtualStringTree;
|
|
VT.GetHitTestInfoAt(Mouse.CursorPos.X-VT.ClientOrigin.X, Mouse.CursorPos.Y-VT.ClientOrigin.Y, True, Click);
|
|
if Assigned(Click.HitNode) and (Click.HitColumn > NoColumn) and (hiOnItemLabel in Click.HitPositions) then
|
|
VT.EditNode(Click.HitNode, Click.HitColumn);
|
|
end;
|
|
|
|
|
|
procedure TfrmTableEditor.ValidateIndexControls;
|
|
var
|
|
Node: PVirtualNode;
|
|
HasNode: Boolean;
|
|
Level: Integer;
|
|
begin
|
|
// Enable/disable buttons
|
|
Node := treeIndexes.FocusedNode;
|
|
HasNode := Assigned(Node);
|
|
if HasNode then Level := treeIndexes.GetNodeLevel(Node)
|
|
else Level := -1;
|
|
|
|
btnRemoveIndex.Enabled := HasNode;
|
|
btnClearIndexes.Enabled := Indexes.Count > 0;
|
|
btnMoveUpIndex.Enabled := HasNode and (Level = 1) and (Node <> treeIndexes.GetFirstChild(Node.Parent));
|
|
btnMoveDownIndex.Enabled := HasNode and (Level = 1) and (Node <> treeIndexes.GetLastChild(Node.Parent));
|
|
|
|
menuAddIndexColumn.Enabled := HasNode;
|
|
menuRemoveIndex.Enabled := btnRemoveIndex.Enabled;
|
|
menuClearIndexes.Enabled := btnClearIndexes.Enabled;
|
|
menuMoveUpIndex.Enabled := btnMoveUpIndex.Enabled;
|
|
menuMoveDownIndex.Enabled := btnMoveDownIndex.Enabled;
|
|
end;
|
|
|
|
|
|
procedure TfrmTableEditor.treeIndexesEditing(Sender: TBaseVirtualTree;
|
|
Node: PVirtualNode; Column: TColumnIndex; var Allowed: Boolean);
|
|
var
|
|
VT: TVirtualStringtree;
|
|
begin
|
|
// Disallow renaming primary key
|
|
VT := Sender as TVirtualStringtree;
|
|
if (VT.GetNodeLevel(Node) = 0) and (Column = VT.Header.MainColumn) and (VT.Text[Node, Column+1] = PKEY) then
|
|
Allowed := False
|
|
else if (VT.GetNodeLevel(Node) = 1) and (Column = 1) then
|
|
Allowed := False
|
|
else
|
|
Allowed := True;
|
|
end;
|
|
|
|
|
|
procedure TfrmTableEditor.treeIndexesCreateEditor(Sender: TBaseVirtualTree;
|
|
Node: PVirtualNode; Column: TColumnIndex; out EditLink: IVTEditLink);
|
|
var
|
|
VT: TVirtualStringTree;
|
|
EnumEditor: TEnumEditorLink;
|
|
Level: Cardinal;
|
|
ColNode: PVirtualNode;
|
|
Col: PColumn;
|
|
begin
|
|
// Start cell editor
|
|
VT := Sender as TVirtualStringTree;
|
|
Level := (Sender as TVirtualStringtree).GetNodeLevel(Node);
|
|
if (Level = 0) and (Column = 1) then begin
|
|
// Index type pulldown
|
|
EnumEditor := TEnumEditorLink.Create(VT);
|
|
EnumEditor.ValueList := TWideStringList.Create;
|
|
EnumEditor.ValueList.CommaText := PKEY +','+ KEY +','+ UKEY +','+ FKEY +','+ SKEY;
|
|
EditLink := EnumEditor;
|
|
end else if (Level = 1) and (Column = 0) then begin
|
|
// Column names pulldown
|
|
EnumEditor := TEnumEditorLink.Create(VT);
|
|
ColNode := listColumns.GetFirst;
|
|
while Assigned(ColNode) do begin
|
|
Col := listColumns.GetNodeData(ColNode);
|
|
EnumEditor.ValueList.Add(Col.Name);
|
|
ColNode := listColumns.GetNext(ColNode);
|
|
end;
|
|
EnumEditor.AllowCustomText := True; // Allows adding a subpart in index parts: "TextCol(20)"
|
|
EditLink := EnumEditor;
|
|
end else
|
|
EditLink := TInplaceEditorLink.Create(VT);
|
|
end;
|
|
|
|
|
|
procedure TfrmTableEditor.treeIndexesNewText(Sender: TBaseVirtualTree;
|
|
Node: PVirtualNode; Column: TColumnIndex; NewText: WideString);
|
|
var
|
|
VT: TVirtualStringtree;
|
|
IndexParts: TWideStringlist;
|
|
begin
|
|
// Rename index of column
|
|
VT := Sender as TVirtualStringtree;
|
|
case VT.GetNodeLevel(Node) of
|
|
0: case Column of
|
|
0: Indexes[Node.Index] := NewText + REGDELIM + VT.Text[Node, Column+1];
|
|
1: Indexes[Node.Index] := VT.Text[Node, Column-1] + REGDELIM + NewText;
|
|
end;
|
|
1: begin
|
|
IndexParts := TWideStringlist(Indexes.Objects[Node.Parent.Index]);
|
|
IndexParts[Node.Index] := NewText;
|
|
end;
|
|
end;
|
|
VT.RepaintNode(Node);
|
|
end;
|
|
|
|
|
|
procedure TfrmTableEditor.treeIndexesBeforePaint(Sender: TBaseVirtualTree;
|
|
TargetCanvas: TCanvas);
|
|
begin
|
|
// (Re)paint index list
|
|
(Sender as TVirtualStringTree).RootNodeCount := Indexes.Count;
|
|
end;
|
|
|
|
|
|
procedure TfrmTableEditor.treeIndexesDragOver(Sender: TBaseVirtualTree;
|
|
Source: TObject; Shift: TShiftState; State: TDragState; Pt: TPoint;
|
|
Mode: TDropMode; var Effect: Integer; var Accept: Boolean);
|
|
var
|
|
Node: PVirtualNode;
|
|
begin
|
|
// Accept nodes from the column list and allow column moving
|
|
if Source = listColumns then begin
|
|
Accept := True;
|
|
Exit;
|
|
end else if Source = Sender then begin
|
|
Node := Sender.GetNodeAt(Pt.X, Pt.Y);
|
|
Accept := Assigned(Node) and (Sender.GetNodeLevel(Node) = 1) and
|
|
(Node <> Sender.FocusedNode) and (Node.Parent = Sender.FocusedNode.Parent);
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure TfrmTableEditor.treeIndexesDragDrop(Sender: TBaseVirtualTree;
|
|
Source: TObject; DataObject: IDataObject; Formats: TFormatArray;
|
|
Shift: TShiftState; Pt: TPoint; var Effect: Integer; Mode: TDropMode);
|
|
var
|
|
Node: PVirtualNode;
|
|
IndexParts: TWideStringlist;
|
|
ColName: WideString;
|
|
ColPos: Integer;
|
|
VT, SourceVT: TVirtualStringtree;
|
|
Col: PColumn;
|
|
begin
|
|
// Column node dropped here
|
|
VT := Sender as TVirtualStringtree;
|
|
SourceVT := Source as TVirtualStringtree;
|
|
Node := VT.GetNodeAt(Pt.X, Pt.Y);
|
|
if not Assigned(Node) then begin
|
|
MessageBeep(MB_ICONEXCLAMATION);
|
|
Exit;
|
|
end;
|
|
if VT.GetNodeLevel(Node) = 1 then begin
|
|
ColPos := Node.Index;
|
|
if Mode = dmBelow then Inc(ColPos);
|
|
Node := Node.Parent;
|
|
end else
|
|
ColPos := MaxInt;
|
|
|
|
if Source = Sender then
|
|
MoveFocusedIndexPart(ColPos)
|
|
else begin
|
|
IndexParts := TWideStringlist(Indexes.Objects[Node.Index]);
|
|
Col := SourceVT.GetNodeData(SourceVT.FocusedNode);
|
|
ColName := Col.Name;
|
|
if IndexParts.IndexOf(ColName) > -1 then begin
|
|
if MessageDlg('Index "'+VT.Text[Node, 0]+'" already contains the column "'+ColName+'". It is possible to add a column twice into a index, but total nonsense in practice.'+CRLF+CRLF+'Add anyway?',
|
|
mtConfirmation, [mbYes, mbNo], 0) = mrNo then
|
|
Exit;
|
|
end;
|
|
|
|
if ColPos >= IndexParts.Count then
|
|
IndexParts.Add(ColName)
|
|
else
|
|
IndexParts.Insert(ColPos, ColName);
|
|
Node.States := Node.States + [vsHasChildren, vsExpanded];
|
|
end;
|
|
// Finally tell parent node to update its children
|
|
VT.ReinitChildren(Node, False);
|
|
end;
|
|
|
|
|
|
procedure TfrmTableEditor.btnMoveUpIndexClick(Sender: TObject);
|
|
begin
|
|
// Move index part up
|
|
MoveFocusedIndexPart(treeIndexes.FocusedNode.Index-1);
|
|
end;
|
|
|
|
|
|
procedure TfrmTableEditor.btnMoveDownIndexClick(Sender: TObject);
|
|
begin
|
|
// Move index part down
|
|
MoveFocusedIndexPart(treeIndexes.FocusedNode.Index+1);
|
|
end;
|
|
|
|
|
|
procedure TfrmTableEditor.MoveFocusedIndexPart(NewIdx: Cardinal);
|
|
var
|
|
IndexParts: TWideStringlist;
|
|
begin
|
|
// Move focused index or index part
|
|
if treeIndexes.IsEditing then
|
|
treeIndexes.EndEditNode;
|
|
IndexParts := TWideStringlist(Indexes.Objects[treeIndexes.FocusedNode.Parent.Index]);
|
|
IndexParts.Move(treeIndexes.FocusedNode.Index, NewIdx);
|
|
SelectNode(treeIndexes, NewIdx, treeIndexes.FocusedNode.Parent);
|
|
end;
|
|
|
|
|
|
procedure TfrmTableEditor.PageControlMainChange(Sender: TObject);
|
|
var
|
|
SupportsForeignKeys: Boolean;
|
|
begin
|
|
if treeIndexes.IsEditing then
|
|
treeIndexes.EndEditNode;
|
|
if PageControlMain.ActivePage = tabForeignKeys then begin
|
|
SupportsForeignKeys := LowerCase(comboEngine.Text) = 'innodb';
|
|
ListForeignKeys.Enabled := SupportsForeignKeys;
|
|
tlbForeignKeys.Enabled := SupportsForeignKeys;
|
|
lblNoForeignKeys.Caption := 'The selected table engine ('+comboEngine.Text+') does not support foreign keys. '+
|
|
'To enable foreign keys you have to change the table engine in the "Options" tab to "InnoDB".';
|
|
if SupportsForeignKeys then
|
|
ListForeignKeys.Height := lblNoForeignKeys.Top - ListForeignKeys.Top + lblNoForeignKeys.Height
|
|
else
|
|
ListForeignKeys.Height := lblNoForeignKeys.Top - ListForeignKeys.Top - 4;
|
|
lblNoForeignKeys.Visible := not SupportsForeignKeys;
|
|
end;
|
|
UpdateSQLcode;
|
|
end;
|
|
|
|
|
|
procedure TfrmTableEditor.UpdateSQLcode;
|
|
var
|
|
OldTopLine: Integer;
|
|
begin
|
|
if (PageControlMain.ActivePage = tabALTERCode) and (not AlterCodeValid) then begin
|
|
SynMemoALTERcode.BeginUpdate;
|
|
OldTopLine := SynMemoALTERcode.TopLine;
|
|
SynMemoALTERcode.Text := ComposeAlterStatement;
|
|
SynMemoALTERcode.TopLine := OldTopLine;
|
|
SynMemoALTERcode.EndUpdate;
|
|
AlterCodeValid := True;
|
|
end else if (PageControlMain.ActivePage = tabCREATECode) and (not CreateCodeValid) then begin
|
|
SynMemoCREATEcode.BeginUpdate;
|
|
OldTopLine := SynMemoCREATEcode.TopLine;
|
|
SynMemoCREATEcode.Text := ComposeCreateStatement;
|
|
SynMemoCREATEcode.TopLine := OldTopLine;
|
|
SynMemoCREATEcode.EndUpdate;
|
|
CreateCodeValid := True;
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure TfrmTableEditor.chkCharsetConvertClick(Sender: TObject);
|
|
begin
|
|
chkCharsetConvert.Enabled := (FAlterTablename <> '') and (comboCollation.ItemIndex > -1);
|
|
listColumns.Repaint;
|
|
Modification(Sender);
|
|
end;
|
|
|
|
|
|
procedure TfrmTableEditor.popupColumnsPopup(Sender: TObject);
|
|
function AddItem(Parent: TMenuItem; Caption: String; ImageIndex: Integer): TMenuItem;
|
|
begin
|
|
Result := TMenuItem.Create(Parent.GetParentMenu);
|
|
Result.Caption := Caption;
|
|
Result.ImageIndex := ImageIndex;
|
|
Result.OnClick := AddIndexByColumn;
|
|
Parent.Add(Result);
|
|
end;
|
|
var
|
|
i: Integer;
|
|
IndexName, IndexType: WideString;
|
|
Item: TMenuItem;
|
|
PrimaryKeyExists,
|
|
ColumnsSelected: Boolean;
|
|
IndexParts: TWideStringList;
|
|
Node: PVirtualNode;
|
|
Col: PColumn;
|
|
begin
|
|
ColumnsSelected := ListColumns.SelectedCount > 0;
|
|
menuAddToIndex.Clear;
|
|
menuCreateIndex.Clear;
|
|
menuAddToIndex.Enabled := ColumnsSelected;
|
|
menuCreateIndex.Enabled := ColumnsSelected;
|
|
if not ColumnsSelected then
|
|
Exit;
|
|
|
|
// Auto create submenu items for "Add to index" ...
|
|
PrimaryKeyExists := False;
|
|
for i:=0 to Indexes.Count-1 do begin
|
|
GetIndexInfo(i, IndexName, IndexType);
|
|
if IndexType = PKEY then
|
|
PrimaryKeyExists := True
|
|
else
|
|
IndexName := IndexName + ' ('+IndexType+')';
|
|
Item := AddItem(menuAddToIndex, IndexName, GetIndexIcon(i));
|
|
// Disable menuitem if all selected columns are already part of this index,
|
|
// enable it if one or more selected columns are not.
|
|
Item.Enabled := False;
|
|
IndexParts := TWideStringList(Indexes.Objects[i]);
|
|
Node := listColumns.GetFirstSelected;
|
|
while Assigned(Node) do begin
|
|
Col := listColumns.GetNodeData(Node);
|
|
if IndexParts.IndexOf(Col.Name) = -1 then begin
|
|
Item.Enabled := True;
|
|
Break;
|
|
end;
|
|
Node := listColumns.GetNextSelected(Node);
|
|
end;
|
|
end;
|
|
menuAddToIndex.Enabled := menuAddToIndex.Count > 0;
|
|
|
|
// ... and for item "Create index"
|
|
Item := AddItem(menuCreateIndex, PKEY, ICONINDEX_PRIMARYKEY);
|
|
Item.Enabled := not PrimaryKeyExists;
|
|
AddItem(menuCreateIndex, KEY, ICONINDEX_INDEXKEY);
|
|
AddItem(menuCreateIndex, UKEY, ICONINDEX_UNIQUEKEY);
|
|
AddItem(menuCreateIndex, FKEY, ICONINDEX_FULLTEXTKEY);
|
|
AddItem(menuCreateIndex, SKEY, ICONINDEX_SPATIALKEY);
|
|
end;
|
|
|
|
|
|
procedure TfrmTableEditor.AddIndexByColumn(Sender: TObject);
|
|
var
|
|
Item: TMenuItem;
|
|
i: Integer;
|
|
IndexName, IndexType,
|
|
NewName, NewType: WideString;
|
|
IndexParts, NewParts: TWideStringlist;
|
|
begin
|
|
// Auto create index or add columns to existing one by rightclicking a column
|
|
Item := (Sender as TMenuItem);
|
|
NewParts := GetVTCaptions(listColumns, True, 1);
|
|
if Item.Parent = menuCreateIndex then begin
|
|
// Remove auto hotkeys
|
|
NewType := StringReplace(Item.Caption, '&', '', [rfReplaceAll]);
|
|
// Avoid creating a second key with the same columns
|
|
for i:=0 to Indexes.Count-1 do begin
|
|
IndexParts := TWideStringList(Indexes.Objects[i]);
|
|
GetIndexInfo(i, IndexName, IndexType);
|
|
if (IndexType = NewType) and (IndexParts.Text = NewParts.Text) then begin
|
|
if MessageDlg('Key already exists. Really create another identical one?'+CRLF+CRLF+
|
|
'This will increase disk usage and probably slow down queries on this table.',
|
|
mtConfirmation, [mbYes, mbNo], 0) = mrNo then
|
|
Exit;
|
|
break;
|
|
end;
|
|
end;
|
|
NewParts.OnChange := IndexesChange;
|
|
NewName := ImplodeStr('_', NewParts);
|
|
Indexes.AddObject(NewName+REGDELIM+NewType, NewParts);
|
|
PageControlMain.ActivePage := tabIndexes;
|
|
treeIndexes.Repaint;
|
|
SelectNode(treeIndexes, Indexes.Count-1);
|
|
SelectNode(treeIndexes, 0, treeIndexes.FocusedNode);
|
|
end else begin
|
|
PageControlMain.ActivePage := tabIndexes;
|
|
IndexParts := TWideStringlist(Indexes.Objects[Item.MenuIndex]);
|
|
for i:=0 to NewParts.Count-1 do begin
|
|
if IndexParts.IndexOf(NewParts[i]) = -1 then
|
|
IndexParts.Add(NewParts[i]);
|
|
end;
|
|
SelectNode(treeIndexes, Item.MenuIndex);
|
|
treeIndexes.ReinitChildren(treeIndexes.FocusedNode, False);
|
|
SelectNode(treeIndexes, IndexParts.Count-1, treeIndexes.FocusedNode);
|
|
end;
|
|
end;
|
|
|
|
|
|
function TfrmTableEditor.GetIndexIcon(idx: Integer): Integer;
|
|
var
|
|
IndexType, IndexName: WideString;
|
|
begin
|
|
// Detect key icon index for specified index
|
|
GetIndexInfo(idx, IndexName, IndexType);
|
|
if IndexType = PKEY then Result := ICONINDEX_PRIMARYKEY
|
|
else if IndexType = KEY then Result := ICONINDEX_INDEXKEY
|
|
else if IndexType = UKEY then Result := ICONINDEX_UNIQUEKEY
|
|
else if IndexType = FKEY then Result := ICONINDEX_FULLTEXTKEY
|
|
else if IndexType = SKEY then Result := ICONINDEX_SPATIALKEY
|
|
else Result := -1;
|
|
end;
|
|
|
|
|
|
procedure TfrmTableEditor.GetIndexInfo(idx: Integer; var IndexName, IndexType: WideString);
|
|
begin
|
|
IndexName := Copy(Indexes[idx], 1, LastPos(REGDELIM, Indexes[idx])-1);
|
|
IndexType := Copy(Indexes[idx], LastPos(REGDELIM, Indexes[idx])+1, Length(Indexes[idx]));
|
|
end;
|
|
|
|
|
|
procedure TfrmTableEditor.btnAddForeignKeyClick(Sender: TObject);
|
|
var
|
|
Key: TForeignKey;
|
|
idx: Integer;
|
|
begin
|
|
// Add new foreign key
|
|
Key := TForeignKey.Create;
|
|
idx := ForeignKeys.Add(Key);
|
|
Key.KeyName := 'FK'+IntToStr(idx+1);
|
|
Key.OnUpdate := '';
|
|
Key.OnDelete := '';
|
|
Key.Added := True;
|
|
Modification(Sender);
|
|
listForeignKeys.Repaint;
|
|
SelectNode(listForeignKeys, idx);
|
|
listForeignKeys.EditNode(listForeignKeys.FocusedNode, listForeignKeys.Header.MainColumn);
|
|
end;
|
|
|
|
|
|
procedure TfrmTableEditor.btnRemoveForeignKeyClick(Sender: TObject);
|
|
var
|
|
Key: TForeignKey;
|
|
begin
|
|
// Remove a foreign key
|
|
Key := ForeignKeys[listForeignKeys.FocusedNode.Index] as TForeignKey;
|
|
if not Key.Added then
|
|
DeletedForeignKeys.Add(Key.KeyName);
|
|
ForeignKeys.Delete(listForeignKeys.FocusedNode.Index);
|
|
Modification(Sender);
|
|
listForeignKeys.Repaint;
|
|
end;
|
|
|
|
|
|
procedure TfrmTableEditor.btnClearForeignKeysClick(Sender: TObject);
|
|
var
|
|
i: Integer;
|
|
Key: TForeignKey;
|
|
begin
|
|
// Clear all foreign keys
|
|
for i:=ForeignKeys.Count-1 downto 0 do begin
|
|
Key := ForeignKeys[i] as TForeignKey;
|
|
if not Key.Added then
|
|
DeletedForeignKeys.Add(Key.KeyName);
|
|
ForeignKeys.Delete(i);
|
|
end;
|
|
Modification(Sender);
|
|
listForeignKeys.Repaint;
|
|
end;
|
|
|
|
|
|
procedure TfrmTableEditor.listForeignKeysBeforePaint(Sender: TBaseVirtualTree; TargetCanvas: TCanvas);
|
|
var
|
|
VT: TVirtualStringTree;
|
|
begin
|
|
// Set RootNodeCount
|
|
VT := Sender as TVirtualStringTree;
|
|
VT.RootNodeCount := ForeignKeys.Count;
|
|
btnClearForeignKeys.Enabled := VT.RootNodeCount > 0;
|
|
end;
|
|
|
|
|
|
procedure TfrmTableEditor.listForeignKeysEditing(Sender: TBaseVirtualTree; Node: PVirtualNode;
|
|
Column: TColumnIndex; var Allowed: Boolean);
|
|
var
|
|
Key: TForeignKey;
|
|
begin
|
|
// Disallow editing foreign columns when no reference table was selected.
|
|
// Also, check for existance of reference table and warn if it's missing.
|
|
if Column = 3 then begin
|
|
Key := ForeignKeys[Node.Index] as TForeignKey;
|
|
Allowed := False;
|
|
if Key.ReferenceTable = '' then
|
|
MessageDlg('Please select a reference table before selecting foreign columns.', mtError, [mbOk], 0)
|
|
else begin
|
|
try
|
|
Mainform.Connection.GetVar('SELECT 1 FROM '+Mainform.MaskMulti(Key.ReferenceTable));
|
|
Allowed := True;
|
|
except
|
|
// Leave Allowed = False
|
|
MessageDlg('Reference table "'+Key.ReferenceTable+'" seems to be missing, broken or non-accessible.', mtError, [mbOk], 0)
|
|
end;
|
|
end;
|
|
end else
|
|
Allowed := True;
|
|
end;
|
|
|
|
|
|
procedure TfrmTableEditor.listForeignKeysCreateEditor(
|
|
Sender: TBaseVirtualTree; Node: PVirtualNode; Column: TColumnIndex;
|
|
out EditLink: IVTEditLink);
|
|
var
|
|
VT: TVirtualStringTree;
|
|
EnumEditor: TEnumEditorLink;
|
|
SetEditor: TSetEditorLink;
|
|
Results: TMySQLQuery;
|
|
Key: TForeignKey;
|
|
ColNode: PVirtualNode;
|
|
Col: PColumn;
|
|
begin
|
|
// Init grid editor in foreign key list
|
|
VT := Sender as TVirtualStringTree;
|
|
case Column of
|
|
0: EditLink := TInplaceEditorLink.Create(VT);
|
|
1: begin
|
|
SetEditor := TSetEditorLink.Create(VT);
|
|
ColNode := listColumns.GetFirst;
|
|
while Assigned(ColNode) do begin
|
|
Col := listColumns.GetNodeData(ColNode);
|
|
SetEditor.ValueList.Add(Col.Name);
|
|
ColNode := listColumns.GetNextSibling(ColNode);
|
|
end;
|
|
EditLink := SetEditor;
|
|
end;
|
|
2: begin
|
|
EnumEditor := TEnumEditorLink.Create(VT);
|
|
EnumEditor.AllowCustomText := True;
|
|
Results := Mainform.FetchActiveDbTableList;
|
|
while not Results.Eof do begin
|
|
EnumEditor.ValueList.Add(Results.Col(DBO_NAME));
|
|
Results.Next;
|
|
end;
|
|
EditLink := EnumEditor;
|
|
end;
|
|
3: begin
|
|
Key := ForeignKeys[Node.Index] as TForeignKey;
|
|
SetEditor := TSetEditorLink.Create(VT);
|
|
SetEditor.ValueList := Mainform.Connection.GetCol('SHOW COLUMNS FROM '+Mainform.MaskMulti(Key.ReferenceTable));
|
|
EditLink := SetEditor;
|
|
end;
|
|
4, 5: begin
|
|
EnumEditor := TEnumEditorLink.Create(VT);
|
|
EnumEditor.ValueList.Text := 'RESTRICT'+CRLF+'CASCADE'+CRLF+'SET NULL'+CRLF+'NO ACTION';
|
|
EditLink := EnumEditor;
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure TfrmTableEditor.listForeignKeysFocusChanged(Sender: TBaseVirtualTree;
|
|
Node: PVirtualNode; Column: TColumnIndex);
|
|
begin
|
|
// Focus on foreign key list changed
|
|
btnRemoveForeignKey.Enabled := Assigned(Sender.FocusedNode);
|
|
end;
|
|
|
|
|
|
procedure TfrmTableEditor.listForeignKeysGetImageIndex(Sender: TBaseVirtualTree;
|
|
Node: PVirtualNode; Kind: TVTImageKind; Column: TColumnIndex;
|
|
var Ghosted: Boolean; var ImageIndex: Integer);
|
|
begin
|
|
// Return image index for node cell in foreign key list
|
|
case Column of
|
|
0: ImageIndex := 136;
|
|
else ImageIndex := -1;
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure TfrmTableEditor.listForeignKeysGetText(Sender: TBaseVirtualTree;
|
|
Node: PVirtualNode; Column: TColumnIndex; TextType: TVSTTextType;
|
|
var CellText: WideString);
|
|
var
|
|
Key: TForeignKey;
|
|
begin
|
|
// Return cell text in foreign key list
|
|
Key := ForeignKeys[Node.Index] as TForeignKey;
|
|
case Column of
|
|
0: CellText := Key.KeyName;
|
|
1: CellText := ImplodeStr(',', Key.Columns);
|
|
2: CellText := Key.ReferenceTable;
|
|
3: CellText := ImplodeStr(',', Key.ForeignColumns);
|
|
4: begin
|
|
CellText := Key.OnUpdate;
|
|
// Both ON UPDATE + DELETE default to "RESTRICT", see http://dev.mysql.com/doc/refman/5.1/en/innodb-foreign-key-constraints.html
|
|
if CellText = '' then
|
|
CellText := 'RESTRICT';
|
|
end;
|
|
5: begin
|
|
CellText := Key.OnDelete;
|
|
if CellText = '' then
|
|
CellText := 'RESTRICT';
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure TfrmTableEditor.listForeignKeysNewText(Sender: TBaseVirtualTree;
|
|
Node: PVirtualNode; Column: TColumnIndex; NewText: WideString);
|
|
var
|
|
Key: TForeignKey;
|
|
begin
|
|
// Cell text in foreign key list edited
|
|
Key := ForeignKeys[Node.Index] as TForeignKey;
|
|
Key.Modified := True;
|
|
Modification(Sender);
|
|
case Column of
|
|
0: Key.KeyName := NewText;
|
|
1: Key.Columns := Explode(',', NewText);
|
|
2: Key.ReferenceTable := NewText;
|
|
3: Key.ForeignColumns := Explode(',', NewText);
|
|
4: Key.OnUpdate := NewText;
|
|
5: Key.OnDelete := NewText;
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure TfrmTableEditor.btnHelpClick(Sender: TObject);
|
|
begin
|
|
// Help button
|
|
Mainform.CallSQLHelpWithKeyword('CREATE TABLE');
|
|
end;
|
|
|
|
|
|
|
|
{ *** TForeignKey structure }
|
|
|
|
constructor TForeignKey.Create;
|
|
begin
|
|
inherited Create;
|
|
Columns := TWideStringlist.Create;
|
|
ForeignColumns := TWideStringlist.Create;
|
|
end;
|
|
|
|
destructor TForeignKey.Destroy;
|
|
begin
|
|
inherited Destroy;
|
|
FreeAndNil(Columns);
|
|
FreeAndNil(ForeignColumns);
|
|
end;
|
|
|
|
procedure TColumn.SetStatus(Value: TEditingStatus);
|
|
begin
|
|
// Set editing flag and enable "Save" button
|
|
if (FStatus in [esAddedUntouched, esAddedModified]) and (Value = esModified) then
|
|
Value := esAddedModified
|
|
else if (FStatus in [esAddedUntouched, esAddedModified]) and (Value = esDeleted) then
|
|
Value := esAddedDeleted;
|
|
FStatus := Value;
|
|
if Value <> esUntouched then
|
|
Mainform.TableEditor.Modification(Self);
|
|
end;
|
|
|
|
end.
|