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;

type

  { TIBDeleteSQLEditorForm }

  TIBDeleteSQLEditorForm = class(TForm)
    Button1: TButton;
    Button2: TButton;
    GenerateBtn: TButton;
    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(Database: TIBDatabase; SelectSQL: TStrings): boolean;

implementation

{$R *.lfm}

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

  with TIBDeleteSQLEditorForm.Create(Application) do
  try
    SetDatabase(Database);
    SQLText.Lines.Assign(SelectSQL);
    Result := ShowModal = mrOK;
    if Result then
     SelectSQL.Assign(SQLText.Lines)
  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)
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:	7
Committed:	Sun Aug 5 18:28:19 2012 UTC (12 years, 3 months ago) by tony
Content type:	text/x-pascal
File size:	4471 byte(s)
Log Message:	Committing updates for Release R1-0-0
#	User	Rev	Content
1	tony	7	(*
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	tony	5	unit ibdeletesqleditor;
28
29			{$mode objfpc}{$H+}
30
31			interface
32
33			uses
34	tony	7	Classes, SysUtils, FileUtil, Forms, Controls, Graphics, Dialogs,
35	tony	5	StdCtrls, IBSystemTables, IBDatabase;
36
37			type
38
39			{ TIBDeleteSQLEditorForm }
40
41			TIBDeleteSQLEditorForm = class(TForm)
42			Button1: TButton;
43			Button2: TButton;
44	tony	7	GenerateBtn: TButton;
45			TestBtn: TButton;
46			IBTransaction1: TIBTransaction;
47	tony	5	Label1: TLabel;
48			Label3: TLabel;
49			Label4: TLabel;
50			PrimaryKeyList: TListBox;
51			QuoteFields: TCheckBox;
52			SQLText: TMemo;
53			TableNamesCombo: TComboBox;
54	tony	7	procedure GenerateBtnClick(Sender: TObject);
55			procedure TestBtnClick(Sender: TObject);
56	tony	5	procedure FormShow(Sender: TObject);
57			procedure PrimaryKeyListDblClick(Sender: TObject);
58			procedure TableNamesComboCloseUp(Sender: TObject);
59			private
60			{ private declarations }
61			FIBSystemTables: TIBSystemTables;
62			public
63			{ public declarations }
64			constructor Create(TheOwner: TComponent); override;
65			destructor Destroy; override;
66	tony	7	procedure SetDatabase(Database: TIBDatabase);
67	tony	5	end;
68
69			var
70			IBDeleteSQLEditorForm: TIBDeleteSQLEditorForm;
71
72	tony	7	function EditSQL(Database: TIBDatabase; SelectSQL: TStrings): boolean;
73	tony	5
74			implementation
75
76	tony	7	{$R *.lfm}
77
78			function EditSQL(Database: TIBDatabase; SelectSQL: TStrings): boolean;
79	tony	5	begin
80			Result := false;
81			if assigned(Database) then
82	tony	7	try
83			Database.Connected := true;
84			except on E: Exception do
85			ShowMessage(E.Message)
86	tony	5	end;
87
88			with TIBDeleteSQLEditorForm.Create(Application) do
89			try
90	tony	7	SetDatabase(Database);
91	tony	5	SQLText.Lines.Assign(SelectSQL);
92			Result := ShowModal = mrOK;
93			if Result then
94			SelectSQL.Assign(SQLText.Lines)
95			finally
96			Free
97			end;
98			end;
99
100			{ TIBDeleteSQLEditorForm }
101
102			procedure TIBDeleteSQLEditorForm.FormShow(Sender: TObject);
103	tony	7	var TableName: string;
104	tony	5	begin
105	tony	7	GenerateBtn.Enabled := (IBTransaction1.DefaultDatabase <> nil) and IBTransaction1.DefaultDatabase.Connected;
106			TestBtn.Enabled := (IBTransaction1.DefaultDatabase <> nil) and IBTransaction1.DefaultDatabase.Connected;
107	tony	5	TableNamesCombo.Items.Clear;
108	tony	7	try
109	tony	5	FIBSystemTables.GetTableNames(TableNamesCombo.Items);
110			if TableNamesCombo.Items.Count > 0 then
111			begin
112			TableNamesCombo.ItemIndex := 0;
113	tony	7	if Trim(SQLText.Text) <> '' then
114			begin
115			FIBSystemTables.GetTableAndColumns(SQLText.Text,TableName,nil);
116			TableNamesCombo.ItemIndex := TableNamesCombo.Items.IndexOf(TableName)
117			end;
118	tony	5	FIBSystemTables.GetPrimaryKeys(TableNamesCombo.Text,PrimaryKeyList.Items);
119			end;
120	tony	7	except {ignore} end;
121	tony	5	end;
122
123			procedure TIBDeleteSQLEditorForm.PrimaryKeyListDblClick(Sender: TObject);
124			begin
125			SQLText.SelText := PrimaryKeyList.Items[PrimaryKeyList.ItemIndex];
126			SQLText.SetFocus
127			end;
128
129	tony	7	procedure TIBDeleteSQLEditorForm.GenerateBtnClick(Sender: TObject);
130	tony	5	begin
131			FIBSystemTables.GenerateDeleteSQL(TableNamesCombo.Text,QuoteFields.Checked,SQLText.Lines)
132			end;
133
134	tony	7	procedure TIBDeleteSQLEditorForm.TestBtnClick(Sender: TObject);
135	tony	5	begin
136			FIBSystemTables.TestSQL(SQLText.Lines.Text)
137			end;
138
139			procedure TIBDeleteSQLEditorForm.TableNamesComboCloseUp(Sender: TObject);
140			begin
141			FIBSystemTables.GetPrimaryKeys(TableNamesCombo.Text,PrimaryKeyList.Items);
142			end;
143
144			constructor TIBDeleteSQLEditorForm.Create(TheOwner: TComponent);
145			begin
146			inherited Create(TheOwner);
147			FIBSystemTables := TIBSystemTables.Create;
148			end;
149
150			destructor TIBDeleteSQLEditorForm.Destroy;
151			begin
152			if assigned(FIBSystemTables) then FIBSystemTables.Free;
153			inherited Destroy;
154			end;
155
156	tony	7	procedure TIBDeleteSQLEditorForm.SetDatabase(Database: TIBDatabase);
157	tony	5	begin
158	tony	7	IBTransaction1.DefaultDatabase := Database;
159			FIBSystemTables.SelectDatabase(Database,IBTransaction1)
160	tony	5	end;
161
162			end.
163