mirror of
https://github.com/HeidiSQL/HeidiSQL.git
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35e8bbb304
* Instead, use separate SHOW commands for tables, functions, procedures and triggers * Catch this chance to move these methods from main unit to mysql_connection, so they're accessible in a more generic way * Additionally, introduce new classes TDBObject and TDBObjectList which provide a more generic way than TMySQLQuery to access these database objects. Fixes issue #1529
357 lines
11 KiB
ObjectPascal
357 lines
11 KiB
ObjectPascal
unit copytable;
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// -------------------------------------
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// Copy table
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// -------------------------------------
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interface
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uses
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Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
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StdCtrls, Buttons, CheckLst, ComCtrls, WideStrings,
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TntStdCtrls, TntCheckLst, mysql_connection;
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type
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TCopyTableForm = class(TForm)
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editNewTablename: TTntEdit;
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lblNewTablename: TLabel;
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radioStructure: TRadioButton;
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radioStructureAndData: TRadioButton;
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CheckListBoxFields: TTntCheckListBox;
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CheckBoxWithAllFields: TCheckBox;
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ButtonCancel: TButton;
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CheckBoxWithIndexes: TCheckBox;
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lblTargetDB: TLabel;
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ComboSelectDatabase: TTntComboBox;
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ButtonOK: TButton;
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chkSelectAll: TCheckBox;
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procedure radioStructureClick(Sender: TObject);
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procedure radioStructureAndDataClick(Sender: TObject);
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procedure CheckBoxWithAllFieldsClick(Sender: TObject);
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procedure editNewTablenameChange(Sender: TObject);
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procedure FormShow(Sender: TObject);
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procedure ButtonOKClick(Sender: TObject);
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procedure FormCreate(Sender: TObject);
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procedure CheckListBoxFieldsClickCheck(Sender: TObject);
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procedure chkSelectAllClick(Sender: TObject);
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private
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{ Private declarations }
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oldTableName : WideString;
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public
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{ Public declarations }
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end;
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function CopyTableWindow(AOwner: TComponent): Boolean;
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implementation
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uses helpers, main, db;
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{$R *.DFM}
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{**
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Create form on demand
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@param TComponent Owner of form (should be calling form)
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@return Boolean Form closed using modalresult mrOK
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}
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function CopyTableWindow(AOwner: TComponent): Boolean;
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var
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f : TCopyTableForm;
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begin
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f := TCopyTableForm.Create(AOwner);
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Result := (f.ShowModal=mrOK);
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FreeAndNil(f);
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end;
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procedure TCopyTableForm.radioStructureClick(Sender: TObject);
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begin
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radioStructureAndData.Checked := not radioStructure.Checked;
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end;
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procedure TCopyTableForm.radioStructureAndDataClick(Sender: TObject);
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begin
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radioStructure.Checked := not radioStructureAndData.Checked;
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end;
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procedure TCopyTableForm.CheckBoxWithAllFieldsClick(Sender: TObject);
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begin
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CheckListBoxFields.Enabled := not CheckBoxWithAllFields.Checked;
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chkSelectAll.Enabled := CheckListBoxFields.Enabled;
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end;
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procedure TCopyTableForm.editNewTablenameChange(Sender: TObject);
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begin
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// validate tablename
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try
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ensureValidIdentifier( editNewTablename.Text );
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editNewTablename.Font.Color := clWindowText;
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editNewTablename.Color := clWindow;
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// Enable "OK"-Button if we have a valid name
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ButtonOK.Enabled := True;
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except
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editNewTablename.Font.Color := clRed;
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editNewTablename.Color := clYellow;
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ButtonOK.Enabled := False;
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end;
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end;
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procedure TCopyTableForm.FormCreate(Sender: TObject);
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begin
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InheritFont(Font);
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end;
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procedure TCopyTableForm.FormShow(Sender: TObject);
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var
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i : Integer;
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struc_data : Byte;
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NodeData: PVTreeData;
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begin
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if Mainform.DBtree.Focused then
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oldTableName := Mainform.SelectedTable.Text
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else begin
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NodeData := Mainform.ListTables.GetNodeData(Mainform.ListTables.FocusedNode);
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oldTableName := NodeData.Captions[0];
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end;
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editNewTablename.Text := oldTableName + '_copy';
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editNewTablename.SetFocus;
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lblNewTablename.Caption := 'Copy ''' + oldTableName + ''' to new table:';
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// Select TargetDatabase
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ComboSelectDatabase.Items.Clear;
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ComboSelectDatabase.Items.Assign(Mainform.Databases);
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ComboSelectDatabase.ItemIndex := ComboSelectDatabase.Items.IndexOf( Mainform.ActiveDatabase );
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if comboSelectDatabase.ItemIndex = -1 then
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comboSelectDatabase.ItemIndex := 0;
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// fill columns:
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CheckListBoxFields.Items.Text := Mainform.Connection.GetCol('SHOW FIELDS FROM ' + mainform.mask(oldTableName)).Text;
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// select all:
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for i:=0 to CheckListBoxFields.Items.Count-1 do
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CheckListBoxFields.checked[i] := true;
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{***
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restore last settings
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@see feature #1647058
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}
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struc_data := GetRegValue( REGNAME_COPYTABLE_STRUCDATA, DEFAULT_COPYTABLE_STRUCDATA );
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case struc_data of
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REGVAL_COPYTABLE_STRUCTURE:
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radioStructure.Checked := true;
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REGVAL_COPYTABLE_STRUCTURE_AND_DATA:
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radioStructureAndData.Checked := true;
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end;
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CheckBoxWithIndexes.Checked := GetRegValue( REGNAME_COPYTABLE_INDEXES, CheckBoxWithIndexes.Checked );
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CheckBoxWithAllFields.Checked := GetRegValue( REGNAME_COPYTABLE_ALLFIELDS, CheckBoxWithAllFields.Checked );
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// Ensure CheckListBoxFields + chkSelectAll are en/disabled
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CheckBoxWithAllFieldsClick(Sender);
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// Ensure chkSelectAll shows its correct state
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CheckListBoxFieldsClickCheck(Sender);
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end;
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procedure TCopyTableForm.ButtonOKClick(Sender: TObject);
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var
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strquery : WideString;
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i,which,k : Integer;
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keylist : Array of TMyKey;
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keystr : WideString;
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notnull,
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default : WideString;
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Results : TMySQLQuery;
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isFulltext : Boolean;
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struc_data : Byte;
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Fixes : TWideStringlist;
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DBObjects : TDBObjectList;
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begin
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// copy table!
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// store settings
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if radioStructure.Checked then struc_data := REGVAL_COPYTABLE_STRUCTURE
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else struc_data := REGVAL_COPYTABLE_STRUCTURE_AND_DATA;
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OpenRegistry;
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MainReg.WriteInteger( REGNAME_COPYTABLE_STRUCDATA, struc_data );
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MainReg.WriteBool( REGNAME_COPYTABLE_INDEXES, CheckBoxWithIndexes.Checked );
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MainReg.WriteBool( REGNAME_COPYTABLE_ALLFIELDS, CheckBoxWithAllFields.Checked );
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strquery := 'CREATE TABLE ' + mainform.mask(ComboSelectDatabase.Text) + '.' + mainform.mask(editNewTablename.Text) + ' ';
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// keys >
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if CheckBoxWithIndexes.Checked then begin
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Results := Mainform.Connection.GetResults('SHOW KEYS FROM ' + mainform.mask(oldtablename));
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setLength(keylist, 0);
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keystr := '';
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for i:=1 to Results.RecordCount do
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begin
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which := -1;
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for k:=0 to length(keylist)-1 do
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begin
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if keylist[k].Name = Results.Col(2) then // keyname exists!
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which := k;
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end;
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if which = -1 then
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begin
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setlength(keylist, length(keylist)+1);
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which := high(keylist);
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keylist[which].Columns := TWideStringList.Create;
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keylist[which].SubParts := TWideStringList.Create;
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// set properties for new key
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if Mainform.Connection.ServerVersionInt < 40002 then
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isFulltext := Results.Col('Comment') = 'FULLTEXT'
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else
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isFulltext := Results.Col('Index_type') = 'FULLTEXT';
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keylist[which].Name := Results.Col(2);
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if Results.Col(2) = 'PRIMARY' then
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keylist[which]._type := 'PRIMARY'
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else if isFulltext then
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keylist[which]._type := 'FULLTEXT'
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else if Results.Col(1) = '1' then
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keylist[which]._type := ''
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else if Results.Col(1) = '0' then
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keylist[which]._type := 'UNIQUE';
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end;
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// add column
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keylist[which].Columns.add(Results.Col('Column_name'));
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keylist[which].SubParts.add(Results.Col('Sub_part'));
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Results.Next;
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end;
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FreeAndNil(Results);
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for k:=0 to high(keylist) do
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begin
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if k > 0 then
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keystr := keystr + ',';
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if keylist[k].Name = 'PRIMARY' then
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keystr := keystr + ' PRIMARY KEY ('
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else
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keystr := keystr + ' ' + keylist[k]._type + ' KEY ' + Mainform.Mask(keylist[k].Name) + ' (';
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for i := 0 to keylist[k].Columns.count - 1 do
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begin
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if i > 0 then
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keystr := keystr + ', ';
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keystr := keystr + mainform.mask(keylist[k].Columns[i]);
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if keylist[k].SubParts[i] <> '' then
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keystr := keystr + '(' + keylist[k].SubParts[i] + ')';
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end;
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keystr := keystr + ')';
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end;
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if keystr<> '' then
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strquery := strquery + '(' + keystr + ')'
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end;
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// < keys
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// Add collation and engine clauses
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DBObjects := Mainform.Connection.GetDBObjects(Mainform.ActiveDatabase);
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for i:=0 to DBObjects.Count-1 do begin
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if DBObjects[i].Name = oldTableName then begin
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if DBObjects[i].Collation <> '' then
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strquery := strquery + ' COLLATE ' + DBObjects[i].Collation;
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if DBObjects[i].Engine <> '' then
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strquery := strquery + ' ENGINE=' + DBObjects[i].Engine;
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strquery := strquery + ' COMMENT=' + esc(DBObjects[i].Comment);
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break;
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end;
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end;
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strquery := strquery + ' SELECT';
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// which fields?
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if CheckBoxWithAllFields.Checked then
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strquery := strquery + ' *'
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else begin
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for i:=0 to CheckListBoxFields.Items.Count-1 do
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if CheckListBoxFields.Checked[i] then
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strquery := strquery + ' ' + mainform.mask(CheckListBoxFields.Items[i]) + ',';
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delete(strquery, length(strquery), 1);
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end;
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strquery := strquery + ' FROM ' + mainform.mask(oldTableName);
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// what?
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if radioStructure.Checked then
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strquery := strquery + ' WHERE 1 = 0';
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try
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Mainform.Connection.Query(strquery, False);
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// Fix missing auto_increment property and CURRENT_TIMESTAMP defaults in new table
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Results := Mainform.Connection.GetResults('SHOW FIELDS FROM ' + mainform.mask(oldtablename));
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Fixes := TWideStringlist.Create;
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while not Results.Eof do begin
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notnull := '';
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if Results.Col('Null') = '' then
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notnull := 'NOT NULL';
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default := '';
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if Results.Col('Default') <> '' then begin
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default := 'DEFAULT ';
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if Results.Col('Default') = 'CURRENT_TIMESTAMP' then
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default := default + Results.Col('Default')
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else
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default := default + esc(Results.Col('Default'));
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end;
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if (CheckBoxWithIndexes.Checked and (Results.Col('Extra') = 'auto_increment'))
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or (Results.Col('Default') = 'CURRENT_TIMESTAMP') then begin
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Fixes.Add('CHANGE '+Mainform.mask(Results.Col('Field'))+' '+
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Mainform.mask(Results.Col('Field'))+' '+
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Results.Col('Type')+' '+default+' '+notnull+' '+Results.Col('Extra'));
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end;
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Results.Next;
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end;
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if Fixes.Count > 0 then begin
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Mainform.Connection.Query('ALTER TABLE '+Mainform.mask(ComboSelectDatabase.Text) + '.'+Mainform.mask(editNewTablename.Text)+ ' '+
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ImplodeStr(', ', Fixes)
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);
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end;
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Results.Free;
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FreeAndNil(Fixes);
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Mainform.actRefresh.Execute;
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except
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on E:Exception do begin
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MessageDlg(E.Message, mtError, [mbOk], 0);
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ModalResult := mrNone;
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end;
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end;
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end;
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procedure TCopyTableForm.CheckListBoxFieldsClickCheck(Sender: TObject);
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var
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i : Integer;
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allSelected, noneSelected : Boolean;
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begin
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allselected := True;
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noneSelected := True;
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for i := 0 to CheckListBoxFields.Items.Count - 1 do begin
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if CheckListBoxFields.Checked[i] then
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noneSelected := False
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else
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allSelected := False;
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end;
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if noneSelected then
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chkSelectAll.State := cbUnchecked
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else if allSelected then
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chkSelectAll.State := cbChecked
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else
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chkSelectAll.State := cbGrayed;
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end;
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procedure TCopyTableForm.chkSelectAllClick(Sender: TObject);
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begin
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// Avoid executing when checkbox was toggled by code (see proc below)
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if (Sender as TCheckBox).Focused then
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ToggleCheckListBox( CheckListBoxFields, (Sender as TCheckBox).Checked );
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end;
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end.
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