trunk/design/ibdeletesqleditor.pas

(*
 *  IBX For Lazarus (Firebird Express)
 *
 *  The contents of this file are subject to the Initial Developer's
 *  Public License Version 1.0 (the "License"); you may not use this
 *  file except in compliance with the License. You may obtain a copy
 *  of the License here:
 *
 *    http://www.firebirdsql.org/index.php?op=doc&id=idpl
 *
 *  Software distributed under the License is distributed on an "AS
 *  IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
 *  implied. See the License for the specific language governing rights
 *  and limitations under the License.
 *
 *  The Initial Developer of the Original Code is Tony Whyman.
 *
 *  The Original Code is (C) 2011 Tony Whyman, MWA Software
 *  (http://www.mwasoftware.co.uk).
 *
 *  All Rights Reserved.
 *
 *  Contributor(s): ______________________________________.
 *
*)

unit ibdeletesqleditor;

{$mode objfpc}{$H+}

interface

uses
  Classes, SysUtils, FileUtil, Forms, Controls, Graphics, Dialogs,
  StdCtrls, ComCtrls, IBSystemTables, IBDatabase, IBCustomDataSet;

type

  { TIBDeleteSQLEditorForm }

  TIBDeleteSQLEditorForm = class(TForm)
    Button1: TButton;
    Button2: TButton;
    ExecuteOnlyIndicator: TLabel;
    GenerateBtn: TButton;
    GenerateParams: TCheckBox;
    Label1: TLabel;
    Label16: TLabel;
    Label17: TLabel;
    Label18: TLabel;
    Label4: TLabel;
    PageControl: TPageControl;
    PrimaryKeyList: TListBox;
    ProcedureNames: TComboBox;
    ProcInputList: TListBox;
    ProcOutputList: TListBox;
    TableNamesCombo: TComboBox;
    DeletePage: TTabSheet;
    ExecutePage: TTabSheet;
    TestBtn: TButton;
    IBTransaction1: TIBTransaction;
    Label3: TLabel;
    QuoteFields: TCheckBox;
    SQLText: TMemo;
    procedure DeletePageShow(Sender: TObject);
    procedure ExecutePageShow(Sender: TObject);
    procedure GenerateBtnClick(Sender: TObject);
    procedure ProcedureNamesCloseUp(Sender: TObject);
    procedure TestBtnClick(Sender: TObject);
    procedure FormShow(Sender: TObject);
    procedure PrimaryKeyListDblClick(Sender: TObject);
    procedure TableNamesComboCloseUp(Sender: TObject);
  private
    { private declarations }
    FIBSystemTables: TIBSystemTables;
  public
    { public declarations }
    constructor Create(TheOwner: TComponent); override;
    destructor Destroy; override;
    procedure SetDatabase(Database: TIBDatabase);
  end; 

var
  IBDeleteSQLEditorForm: TIBDeleteSQLEditorForm;

function EditSQL(DataSet: TIBCustomDataSet; SelectSQL: TStrings): boolean;

implementation

uses IBSQL;

{$R *.lfm}

function EditSQL(DataSet: TIBCustomDataSet; SelectSQL: TStrings): boolean;
begin
  Result := false;
  if assigned(DataSet) and assigned(DataSet.Database) then
    try
      DataSet.Database.Connected := true;
    except on E: Exception do
      ShowMessage(E.Message)
    end;

  with TIBDeleteSQLEditorForm.Create(Application) do
  try
    if assigned(DataSet) then
    begin
        SetDatabase(DataSet.Database);
        GenerateParams.Checked := DataSet.GenerateParamNames;
    end;
    SQLText.Lines.Assign(SelectSQL);
    Result := ShowModal = mrOK;
    if Result then
    begin
     SelectSQL.Assign(SQLText.Lines);
     if assigned(DataSet) then
          DataSet.GenerateParamNames := GenerateParams.Checked
    end;
  finally
    Free
  end;
end;

{ TIBDeleteSQLEditorForm }

procedure TIBDeleteSQLEditorForm.FormShow(Sender: TObject);
var IsProcedureName: boolean;
    SQLType: TIBSQLTypes;
begin
  GenerateBtn.Enabled := (IBTransaction1.DefaultDatabase <> nil) and IBTransaction1.DefaultDatabase.Connected;
  TestBtn.Enabled := (IBTransaction1.DefaultDatabase <> nil) and IBTransaction1.DefaultDatabase.Connected;
  if Trim(SQLText.Text) <> '' then
  begin
    try
      SQLType := FIBSystemTables.GetStatementType(SQLText.Text,IsProcedureName);
    except  end;
    if SQLType = SQLExecProcedure then
      PageControl.ActivePage := ExecutePage
    else
      PageControl.ActivePage := DeletePage;
  end
  else
    PageControl.ActivePage := DeletePage;
end;

procedure TIBDeleteSQLEditorForm.PrimaryKeyListDblClick(Sender: TObject);
begin
  SQLText.SelText := PrimaryKeyList.Items[PrimaryKeyList.ItemIndex];
  SQLText.SetFocus
end;

procedure TIBDeleteSQLEditorForm.GenerateBtnClick(Sender: TObject);
begin
  if PageControl.ActivePage = ExecutePage then
    FIBSystemTables.GenerateExecuteSQL(ProcedureNames.Text,QuoteFields.Checked,true,
          ProcInputList.Items,ProcOutputList.Items,SQLText.Lines)
  else
    FIBSystemTables.GenerateDeleteSQL(TableNamesCombo.Text,QuoteFields.Checked,SQLText.Lines)
end;

procedure TIBDeleteSQLEditorForm.ProcedureNamesCloseUp(Sender: TObject);
var ExecuteOnly: boolean;
begin
  FIBSystemTables.GetProcParams(ProcedureNames.Text,ExecuteOnly,ProcInputList.Items,ProcOutputList.Items);
  ExecuteOnlyIndicator.Visible := ExecuteOnly;
end;

procedure TIBDeleteSQLEditorForm.DeletePageShow(Sender: TObject);
var TableName: string;
begin
  TableNamesCombo.Items.Clear;
  try
  FIBSystemTables.GetTableNames(TableNamesCombo.Items);
  if TableNamesCombo.Items.Count > 0 then
  begin
    TableNamesCombo.ItemIndex := 0;
    if Trim(SQLText.Text) <> '' then
    begin
      FIBSystemTables.GetTableAndColumns(SQLText.Text,TableName,nil);
      TableNamesCombo.ItemIndex := TableNamesCombo.Items.IndexOf(TableName)
    end;
    FIBSystemTables.GetPrimaryKeys(TableNamesCombo.Text,PrimaryKeyList.Items);
  end;
  except {ignore} end;
end;

procedure TIBDeleteSQLEditorForm.ExecutePageShow(Sender: TObject);
var ProcName: string;
    IsProcedureName: boolean;
begin
  FIBSystemTables.GetProcedureNames(ProcedureNames.Items,false);
  if ProcedureNames.Items.Count > 0 then
  begin
    if (FIBSystemTables.GetStatementType(SQLText.Text,IsProcedureName) = SQLExecProcedure) or IsProcedureName then
    begin
      FIBSystemTables.GetTableAndColumns(SQLText.Text,ProcName,nil);
      ProcedureNames.ItemIndex := ProcedureNames.Items.IndexOf(ProcName)
    end
    else
      ProcedureNames.ItemIndex := 0;
  end;
  ProcedureNamesCloseUp(nil);
end;

procedure TIBDeleteSQLEditorForm.TestBtnClick(Sender: TObject);
begin
  FIBSystemTables.TestSQL(SQLText.Lines.Text,GenerateParams.Checked)
end;

procedure TIBDeleteSQLEditorForm.TableNamesComboCloseUp(Sender: TObject);
begin
  FIBSystemTables.GetPrimaryKeys(TableNamesCombo.Text,PrimaryKeyList.Items);
end;

constructor TIBDeleteSQLEditorForm.Create(TheOwner: TComponent);
begin
  inherited Create(TheOwner);
  FIBSystemTables := TIBSystemTables.Create;
end;

destructor TIBDeleteSQLEditorForm.Destroy;
begin
  if assigned(FIBSystemTables) then FIBSystemTables.Free;
  inherited Destroy;
end;

procedure TIBDeleteSQLEditorForm.SetDatabase(Database: TIBDatabase);
begin
  IBTransaction1.DefaultDatabase := Database;
  FIBSystemTables.SelectDatabase(Database,IBTransaction1)
end;

end.
Revision:	33
Committed:	Sat Jul 18 12:30:52 2015 UTC (9 years, 5 months ago) by tony
Content type:	text/x-pascal
File size:	6818 byte(s)
Log Message:	Committing updates for Release R1-3-1
#	User	Rev	Content
1	tony	33	(*
2			* IBX For Lazarus (Firebird Express)
3			*
4			* The contents of this file are subject to the Initial Developer's
5			* Public License Version 1.0 (the "License"); you may not use this
6			* file except in compliance with the License. You may obtain a copy
7			* of the License here:
8			*
9			* http://www.firebirdsql.org/index.php?op=doc&id=idpl
10			*
11			* Software distributed under the License is distributed on an "AS
12			* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
13			* implied. See the License for the specific language governing rights
14			* and limitations under the License.
15			*
16			* The Initial Developer of the Original Code is Tony Whyman.
17			*
18			* The Original Code is (C) 2011 Tony Whyman, MWA Software
19			* (http://www.mwasoftware.co.uk).
20			*
21			* All Rights Reserved.
22			*
23			* Contributor(s): ______________________________________.
24			*
25			*)
26
27			unit ibdeletesqleditor;
28
29			{$mode objfpc}{$H+}
30
31			interface
32
33			uses
34			Classes, SysUtils, FileUtil, Forms, Controls, Graphics, Dialogs,
35			StdCtrls, ComCtrls, IBSystemTables, IBDatabase, IBCustomDataSet;
36
37			type
38
39			{ TIBDeleteSQLEditorForm }
40
41			TIBDeleteSQLEditorForm = class(TForm)
42			Button1: TButton;
43			Button2: TButton;
44			ExecuteOnlyIndicator: TLabel;
45			GenerateBtn: TButton;
46			GenerateParams: TCheckBox;
47			Label1: TLabel;
48			Label16: TLabel;
49			Label17: TLabel;
50			Label18: TLabel;
51			Label4: TLabel;
52			PageControl: TPageControl;
53			PrimaryKeyList: TListBox;
54			ProcedureNames: TComboBox;
55			ProcInputList: TListBox;
56			ProcOutputList: TListBox;
57			TableNamesCombo: TComboBox;
58			DeletePage: TTabSheet;
59			ExecutePage: TTabSheet;
60			TestBtn: TButton;
61			IBTransaction1: TIBTransaction;
62			Label3: TLabel;
63			QuoteFields: TCheckBox;
64			SQLText: TMemo;
65			procedure DeletePageShow(Sender: TObject);
66			procedure ExecutePageShow(Sender: TObject);
67			procedure GenerateBtnClick(Sender: TObject);
68			procedure ProcedureNamesCloseUp(Sender: TObject);
69			procedure TestBtnClick(Sender: TObject);
70			procedure FormShow(Sender: TObject);
71			procedure PrimaryKeyListDblClick(Sender: TObject);
72			procedure TableNamesComboCloseUp(Sender: TObject);
73			private
74			{ private declarations }
75			FIBSystemTables: TIBSystemTables;
76			public
77			{ public declarations }
78			constructor Create(TheOwner: TComponent); override;
79			destructor Destroy; override;
80			procedure SetDatabase(Database: TIBDatabase);
81			end;
82
83			var
84			IBDeleteSQLEditorForm: TIBDeleteSQLEditorForm;
85
86			function EditSQL(DataSet: TIBCustomDataSet; SelectSQL: TStrings): boolean;
87
88			implementation
89
90			uses IBSQL;
91
92			{$R *.lfm}
93
94			function EditSQL(DataSet: TIBCustomDataSet; SelectSQL: TStrings): boolean;
95			begin
96			Result := false;
97			if assigned(DataSet) and assigned(DataSet.Database) then
98			try
99			DataSet.Database.Connected := true;
100			except on E: Exception do
101			ShowMessage(E.Message)
102			end;
103
104			with TIBDeleteSQLEditorForm.Create(Application) do
105			try
106			if assigned(DataSet) then
107			begin
108			SetDatabase(DataSet.Database);
109			GenerateParams.Checked := DataSet.GenerateParamNames;
110			end;
111			SQLText.Lines.Assign(SelectSQL);
112			Result := ShowModal = mrOK;
113			if Result then
114			begin
115			SelectSQL.Assign(SQLText.Lines);
116			if assigned(DataSet) then
117			DataSet.GenerateParamNames := GenerateParams.Checked
118			end;
119			finally
120			Free
121			end;
122			end;
123
124			{ TIBDeleteSQLEditorForm }
125
126			procedure TIBDeleteSQLEditorForm.FormShow(Sender: TObject);
127			var IsProcedureName: boolean;
128			SQLType: TIBSQLTypes;
129			begin
130			GenerateBtn.Enabled := (IBTransaction1.DefaultDatabase <> nil) and IBTransaction1.DefaultDatabase.Connected;
131			TestBtn.Enabled := (IBTransaction1.DefaultDatabase <> nil) and IBTransaction1.DefaultDatabase.Connected;
132			if Trim(SQLText.Text) <> '' then
133			begin
134			try
135			SQLType := FIBSystemTables.GetStatementType(SQLText.Text,IsProcedureName);
136			except end;
137			if SQLType = SQLExecProcedure then
138			PageControl.ActivePage := ExecutePage
139			else
140			PageControl.ActivePage := DeletePage;
141			end
142			else
143			PageControl.ActivePage := DeletePage;
144			end;
145
146			procedure TIBDeleteSQLEditorForm.PrimaryKeyListDblClick(Sender: TObject);
147			begin
148			SQLText.SelText := PrimaryKeyList.Items[PrimaryKeyList.ItemIndex];
149			SQLText.SetFocus
150			end;
151
152			procedure TIBDeleteSQLEditorForm.GenerateBtnClick(Sender: TObject);
153			begin
154			if PageControl.ActivePage = ExecutePage then
155			FIBSystemTables.GenerateExecuteSQL(ProcedureNames.Text,QuoteFields.Checked,true,
156			ProcInputList.Items,ProcOutputList.Items,SQLText.Lines)
157			else
158			FIBSystemTables.GenerateDeleteSQL(TableNamesCombo.Text,QuoteFields.Checked,SQLText.Lines)
159			end;
160
161			procedure TIBDeleteSQLEditorForm.ProcedureNamesCloseUp(Sender: TObject);
162			var ExecuteOnly: boolean;
163			begin
164			FIBSystemTables.GetProcParams(ProcedureNames.Text,ExecuteOnly,ProcInputList.Items,ProcOutputList.Items);
165			ExecuteOnlyIndicator.Visible := ExecuteOnly;
166			end;
167
168			procedure TIBDeleteSQLEditorForm.DeletePageShow(Sender: TObject);
169			var TableName: string;
170			begin
171			TableNamesCombo.Items.Clear;
172			try
173			FIBSystemTables.GetTableNames(TableNamesCombo.Items);
174			if TableNamesCombo.Items.Count > 0 then
175			begin
176			TableNamesCombo.ItemIndex := 0;
177			if Trim(SQLText.Text) <> '' then
178			begin
179			FIBSystemTables.GetTableAndColumns(SQLText.Text,TableName,nil);
180			TableNamesCombo.ItemIndex := TableNamesCombo.Items.IndexOf(TableName)
181			end;
182			FIBSystemTables.GetPrimaryKeys(TableNamesCombo.Text,PrimaryKeyList.Items);
183			end;
184			except {ignore} end;
185			end;
186
187			procedure TIBDeleteSQLEditorForm.ExecutePageShow(Sender: TObject);
188			var ProcName: string;
189			IsProcedureName: boolean;
190			begin
191			FIBSystemTables.GetProcedureNames(ProcedureNames.Items,false);
192			if ProcedureNames.Items.Count > 0 then
193			begin
194			if (FIBSystemTables.GetStatementType(SQLText.Text,IsProcedureName) = SQLExecProcedure) or IsProcedureName then
195			begin
196			FIBSystemTables.GetTableAndColumns(SQLText.Text,ProcName,nil);
197			ProcedureNames.ItemIndex := ProcedureNames.Items.IndexOf(ProcName)
198			end
199			else
200			ProcedureNames.ItemIndex := 0;
201			end;
202			ProcedureNamesCloseUp(nil);
203			end;
204
205			procedure TIBDeleteSQLEditorForm.TestBtnClick(Sender: TObject);
206			begin
207			FIBSystemTables.TestSQL(SQLText.Lines.Text,GenerateParams.Checked)
208			end;
209
210			procedure TIBDeleteSQLEditorForm.TableNamesComboCloseUp(Sender: TObject);
211			begin
212			FIBSystemTables.GetPrimaryKeys(TableNamesCombo.Text,PrimaryKeyList.Items);
213			end;
214
215			constructor TIBDeleteSQLEditorForm.Create(TheOwner: TComponent);
216			begin
217			inherited Create(TheOwner);
218			FIBSystemTables := TIBSystemTables.Create;
219			end;
220
221			destructor TIBDeleteSQLEditorForm.Destroy;
222			begin
223			if assigned(FIBSystemTables) then FIBSystemTables.Free;
224			inherited Destroy;
225			end;
226
227			procedure TIBDeleteSQLEditorForm.SetDatabase(Database: TIBDatabase);
228			begin
229			IBTransaction1.DefaultDatabase := Database;
230			FIBSystemTables.SelectDatabase(Database,IBTransaction1)
231			end;
232
233			end.