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, IBSystemTables, IBDatabase, IBCustomDataSet;

type

  { TIBDeleteSQLEditorForm }

  TIBDeleteSQLEditorForm = class(TForm)
    Button1: TButton;
    Button2: TButton;
    GenerateBtn: TButton;
    GenerateParams: TCheckBox;
    TestBtn: TButton;
    IBTransaction1: TIBTransaction;
    Label1: TLabel;
    Label3: TLabel;
    Label4: TLabel;
    PrimaryKeyList: TListBox;
    QuoteFields: TCheckBox;
    SQLText: TMemo;
    TableNamesCombo: TComboBox;
    procedure GenerateBtnClick(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

{$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 TableName: string;
begin
  GenerateBtn.Enabled := (IBTransaction1.DefaultDatabase <> nil) and IBTransaction1.DefaultDatabase.Connected;
  TestBtn.Enabled := (IBTransaction1.DefaultDatabase <> nil) and IBTransaction1.DefaultDatabase.Connected;
  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.PrimaryKeyListDblClick(Sender: TObject);
begin
  SQLText.SelText := PrimaryKeyList.Items[PrimaryKeyList.ItemIndex];
  SQLText.SetFocus
end;

procedure TIBDeleteSQLEditorForm.GenerateBtnClick(Sender: TObject);
begin
  FIBSystemTables.GenerateDeleteSQL(TableNamesCombo.Text,QuoteFields.Checked,SQLText.Lines)
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:	19
Committed:	Mon Jul 7 13:00:15 2014 UTC (10 years, 5 months ago) by tony
Content type:	text/x-pascal
File size:	4996 byte(s)
Log Message:	Committing updates for Release R1-1-0
#	User	Rev	Content
1	tony	17	(*
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	tony	19	StdCtrls, IBSystemTables, IBDatabase, IBCustomDataSet;
36	tony	17
37			type
38
39			{ TIBDeleteSQLEditorForm }
40
41			TIBDeleteSQLEditorForm = class(TForm)
42			Button1: TButton;
43			Button2: TButton;
44			GenerateBtn: TButton;
45	tony	19	GenerateParams: TCheckBox;
46	tony	17	TestBtn: TButton;
47			IBTransaction1: TIBTransaction;
48			Label1: TLabel;
49			Label3: TLabel;
50			Label4: TLabel;
51			PrimaryKeyList: TListBox;
52			QuoteFields: TCheckBox;
53			SQLText: TMemo;
54			TableNamesCombo: TComboBox;
55			procedure GenerateBtnClick(Sender: TObject);
56			procedure TestBtnClick(Sender: TObject);
57			procedure FormShow(Sender: TObject);
58			procedure PrimaryKeyListDblClick(Sender: TObject);
59			procedure TableNamesComboCloseUp(Sender: TObject);
60			private
61			{ private declarations }
62			FIBSystemTables: TIBSystemTables;
63			public
64			{ public declarations }
65			constructor Create(TheOwner: TComponent); override;
66			destructor Destroy; override;
67			procedure SetDatabase(Database: TIBDatabase);
68			end;
69
70			var
71			IBDeleteSQLEditorForm: TIBDeleteSQLEditorForm;
72
73	tony	19	function EditSQL(DataSet: TIBCustomDataSet; SelectSQL: TStrings): boolean;
74	tony	17
75			implementation
76
77			{$R *.lfm}
78
79	tony	19	function EditSQL(DataSet: TIBCustomDataSet; SelectSQL: TStrings): boolean;
80	tony	17	begin
81			Result := false;
82	tony	19	if assigned(DataSet) and assigned(DataSet.Database) then
83	tony	17	try
84	tony	19	DataSet.Database.Connected := true;
85	tony	17	except on E: Exception do
86			ShowMessage(E.Message)
87			end;
88
89			with TIBDeleteSQLEditorForm.Create(Application) do
90			try
91	tony	19	if assigned(DataSet) then
92			begin
93			SetDatabase(DataSet.Database);
94			GenerateParams.Checked := DataSet.GenerateParamNames;
95			end;
96	tony	17	SQLText.Lines.Assign(SelectSQL);
97			Result := ShowModal = mrOK;
98			if Result then
99	tony	19	begin
100			SelectSQL.Assign(SQLText.Lines);
101			if assigned(DataSet) then
102			DataSet.GenerateParamNames := GenerateParams.Checked
103			end;
104	tony	17	finally
105			Free
106			end;
107			end;
108
109			{ TIBDeleteSQLEditorForm }
110
111			procedure TIBDeleteSQLEditorForm.FormShow(Sender: TObject);
112			var TableName: string;
113			begin
114			GenerateBtn.Enabled := (IBTransaction1.DefaultDatabase <> nil) and IBTransaction1.DefaultDatabase.Connected;
115			TestBtn.Enabled := (IBTransaction1.DefaultDatabase <> nil) and IBTransaction1.DefaultDatabase.Connected;
116			TableNamesCombo.Items.Clear;
117			try
118			FIBSystemTables.GetTableNames(TableNamesCombo.Items);
119			if TableNamesCombo.Items.Count > 0 then
120			begin
121			TableNamesCombo.ItemIndex := 0;
122			if Trim(SQLText.Text) <> '' then
123			begin
124			FIBSystemTables.GetTableAndColumns(SQLText.Text,TableName,nil);
125			TableNamesCombo.ItemIndex := TableNamesCombo.Items.IndexOf(TableName)
126			end;
127			FIBSystemTables.GetPrimaryKeys(TableNamesCombo.Text,PrimaryKeyList.Items);
128			end;
129			except {ignore} end;
130			end;
131
132			procedure TIBDeleteSQLEditorForm.PrimaryKeyListDblClick(Sender: TObject);
133			begin
134			SQLText.SelText := PrimaryKeyList.Items[PrimaryKeyList.ItemIndex];
135			SQLText.SetFocus
136			end;
137
138			procedure TIBDeleteSQLEditorForm.GenerateBtnClick(Sender: TObject);
139			begin
140			FIBSystemTables.GenerateDeleteSQL(TableNamesCombo.Text,QuoteFields.Checked,SQLText.Lines)
141			end;
142
143			procedure TIBDeleteSQLEditorForm.TestBtnClick(Sender: TObject);
144			begin
145	tony	19	FIBSystemTables.TestSQL(SQLText.Lines.Text,GenerateParams.Checked)
146	tony	17	end;
147
148			procedure TIBDeleteSQLEditorForm.TableNamesComboCloseUp(Sender: TObject);
149			begin
150			FIBSystemTables.GetPrimaryKeys(TableNamesCombo.Text,PrimaryKeyList.Items);
151			end;
152
153			constructor TIBDeleteSQLEditorForm.Create(TheOwner: TComponent);
154			begin
155			inherited Create(TheOwner);
156			FIBSystemTables := TIBSystemTables.Create;
157			end;
158
159			destructor TIBDeleteSQLEditorForm.Destroy;
160			begin
161			if assigned(FIBSystemTables) then FIBSystemTables.Free;
162			inherited Destroy;
163			end;
164
165			procedure TIBDeleteSQLEditorForm.SetDatabase(Database: TIBDatabase);
166			begin
167			IBTransaction1.DefaultDatabase := Database;
168			FIBSystemTables.SelectDatabase(Database,IBTransaction1)
169			end;
170
171			end.
172	tony	19