journaling/design/ibdataseteditor.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 IBDataSetEditor;

{$mode objfpc}{$H+}

interface

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

type

  { TIBDataSetEditorForm }

  TIBDataSetEditorForm = class(TForm)
    TestBtn: TButton;
    CancelButton: TButton;
    FieldsPage: TTabSheet;
    GenerateButton: TButton;
    GroupBox1: TGroupBox;
    IBTransaction1: TIBTransaction;
    IncludePrimaryKeys: TCheckBox;
    PrimaryKeyList: TListBox;
    Label1: TLabel;
    Label2: TLabel;
    Label3: TLabel;
    Label4: TLabel;
    OkButton: TButton;
    PageControl: TPageControl;
    QuoteFields: TCheckBox;
    SQLMemo: TMemo;
    SQLPage: TTabSheet;
    StatementType: TRadioGroup;
    FieldList: TListBox;
    TableNamesCombo: TComboBox;
    procedure TestBtnClick(Sender: TObject);
    procedure FormClose(Sender: TObject; var CloseAction: TCloseAction);
    procedure FormShow(Sender: TObject);
    procedure GenerateButtonClick(Sender: TObject);
    procedure SQLMemoChange(Sender: TObject);
    procedure SQLPageShow(Sender: TObject);
    procedure StatementTypeClick(Sender: TObject);
    procedure TableNamesComboCloseUp(Sender: TObject);
  private
    { private declarations }
    FDataSet: TIBDataSet;
    FIBSystemTables: TIBSystemTables;
    FDirty: boolean;
    FCurrentStatement: integer;
    FSelectSQL: TStringList;
    FModifySQL: TStringList;
    FInsertSQL: TStringList;
    FDeleteSQL: TStringList;
    FRefreshSQL: TStringList;
    procedure UpdateSQLMemo;
  public
    { public declarations }
    constructor Create(TheOwner: TComponent); override;
    destructor Destroy; override;
    procedure SetDataSet(AObject: TIBDataSet);
  end;

var
  IBDataSetEditorForm: TIBDataSetEditorForm;

function EditIBDataSet(DataSet: TIBDataSet): boolean;

implementation

{$R *.lfm}

function EditIBDataSet(DataSet: TIBDataSet): 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 TIBDataSetEditorForm.Create(Application) do
  try
    SetDataSet(DataSet);
    Result := ShowModal = mrOK
  finally
    Free
  end;

end;

{ TIBDataSetEditorForm }

procedure TIBDataSetEditorForm.FormShow(Sender: TObject);
var TableName: string;
begin
  PageControl.ActivePage := FieldsPage;
  FModifySQL.Assign(FDataSet.ModifySQL);
  FInsertSQL.Assign(FDataSet.InsertSQL);
  FDeleteSQL.Assign(FDataSet.DeleteSQL);
  FRefreshSQL.Assign(FDataSet.RefreshSQL);
  FSelectSQL.Assign(FDataSet.SelectSQL);
  GenerateButton.Enabled := (IBTransaction1.DefaultDatabase <> nil) and IBTransaction1.DefaultDatabase.Connected;
  TestBtn.Enabled := (IBTransaction1.DefaultDatabase <> nil) and IBTransaction1.DefaultDatabase.Connected;
  FCurrentStatement := -1;
  TableNamesCombo.Items.Clear;
  FIBSystemTables.GetTableNames(TableNamesCombo.Items);
  if TableNamesCombo.Items.Count > 0 then
  begin
    TableNamesCombo.ItemIndex := 0;
    if FSelectSQL.Text <> '' then
    try
       FIBSystemTables.GetTableAndColumns(FSelectSQL.Text,TableName,nil);
       TableNamesCombo.ItemIndex := TableNamesCombo.Items.IndexOf(TableName);
    except end;//ignore
    FIBSystemTables.GetFieldNames(TableNamesCombo.Text,FieldList.Items,IncludePrimaryKeys.checked,false);
    FIBSystemTables.GetPrimaryKeys(TableNamesCombo.Text,PrimaryKeyList.Items);
  end;
end;

procedure TIBDataSetEditorForm.FormClose(Sender: TObject;
  var CloseAction: TCloseAction);
begin
  if ModalResult = mrOK then
  begin
    UpdateSQLMemo;
    FDataSet.ModifySQL.Assign(FModifySQL);
    FDataSet.InsertSQL.Assign(FInsertSQL);
    FDataSet.DeleteSQL.Assign(FDeleteSQL);
    FDataSet.RefreshSQL.Assign(FRefreshSQL);
    FDataSet.SelectSQL.Assign(FSelectSQL);
  end;
end;

procedure TIBDataSetEditorForm.TestBtnClick(Sender: TObject);
begin
  if SQLMemo.Lines.Text <> '' then
    FIBSystemTables.TestSQL(SQLMemo.Lines.Text);
end;

procedure TIBDataSetEditorForm.GenerateButtonClick(Sender: TObject);
var FieldNames: TStringList;
    I: integer;
begin
  FieldNames := TStringList.Create;
  try
    FRefreshSQL.Clear;
    FSelectSQL.Clear;
    FIBSystemTables.GetFieldNames(TableNamesCombo.Text,FieldNames);
    FIBSystemTables.GenerateSelectSQL(TableNamesCombo.Text,QuoteFields.Checked,FieldNames,FSelectSQL);
    FIBSystemTables.GenerateRefreshSQL(TableNamesCombo.Text,QuoteFields.Checked,FieldNames,FRefreshSQL);
    FIBSystemTables.GenerateDeleteSQL(TableNamesCombo.Text,QuoteFields.Checked,FDeleteSQL);
    FieldNames.Clear;
    FIBSystemTables.GetFieldNames(TableNamesCombo.Text,FieldNames,true,false);
    FIBSystemTables.GenerateInsertSQL(TableNamesCombo.Text,QuoteFields.Checked,
        FieldNames,FInsertSQL);
    if FieldList.SelCount = 0 then
    begin
      FIBSystemTables.GenerateModifySQL(TableNamesCombo.Text,QuoteFields.Checked,
        FieldList.Items,FModifySQL);

    end
    else
    begin
      FieldNames.Clear;
      for I := 0 to FieldList.Items.Count - 1 do
        if FieldList.Selected[I] then
          FieldNames.Add(FieldList.Items[I]);
      FIBSystemTables.GenerateModifySQL(TableNamesCombo.Text,QuoteFields.Checked,
        FieldNames,FModifySQL);
    end;
    FDirty := false;
    PageControl.ActivePage := SQLPage;
  finally
    FieldNames.Free
  end;
end;

procedure TIBDataSetEditorForm.SQLMemoChange(Sender: TObject);
begin
  FDirty := true
end;

procedure TIBDataSetEditorForm.SQLPageShow(Sender: TObject);
begin
  UpdateSQLMemo
end;

procedure TIBDataSetEditorForm.StatementTypeClick(Sender: TObject);
begin
  UpdateSQLMemo
end;

procedure TIBDataSetEditorForm.TableNamesComboCloseUp(Sender: TObject);
begin
  FIBSystemTables.GetFieldNames(TableNamesCombo.Text,FieldList.Items,IncludePrimaryKeys.checked,false);
  FIBSystemTables.GetPrimaryKeys(TableNamesCombo.Text,PrimaryKeyList.Items);
end;

procedure TIBDataSetEditorForm.UpdateSQLMemo;
begin
  if FDirty then
    case FCurrentStatement of
    0: // Select
        FSelectSQL.Assign(SQLMemo.Lines);
    1: //Modify
        FModifySQL.Assign(SQLMemo.Lines);
    2: //Insert
        FInsertSQL.Assign(SQLMemo.Lines);
    3: // Delete
        FDeleteSQL.Assign(SQLMemo.Lines);
    4: //Refresh
        FRefreshSQL.Assign(SQLMemo.Lines);
    end;
  FDirty := false;
  case StatementType.ItemIndex of
  0: //Select
     SQLMemo.Lines.Assign(FSelectSQL);
  1: // Modify
    SQLMemo.Lines.Assign(FModifySQL)  ;
  2: //Insert
    SQLMemo.Lines.Assign(FInsertSQL)  ;
  3: // Delete
    SQLMemo.Lines.Assign(FDeleteSQL)  ;
  4: //Refresh
    SQLMemo.Lines.Assign(FRefreshSQL)  ;
  end;
  FCurrentStatement := StatementType.ItemIndex;
end;

constructor TIBDataSetEditorForm.Create(TheOwner: TComponent);
begin
  inherited Create(TheOwner);
  FIBSystemTables := TIBSystemTables.Create;
  FModifySQL := TStringList.Create;
  FInsertSQL := TStringList.Create;
  FDeleteSQL := TStringList.Create;
  FRefreshSQL := TStringList.Create;
  FSelectSQL := TStringList.Create;
end;

destructor TIBDataSetEditorForm.Destroy;
begin
  if assigned(FIBSystemTables) then FIBSystemTables.Free;
  if assigned(FModifySQL) then FModifySQL.Free;
  if assigned(FInsertSQL) then FInsertSQL.Free;
  if assigned(FDeleteSQL) then FDeleteSQL.Free;
  if assigned(FRefreshSQL) then FRefreshSQL.Free;
 if assigned(FSelectSQL) then FSelectSQL.Free;
  inherited Destroy;
end;

procedure TIBDataSetEditorForm.SetDataSet(AObject: TIBDataSet);
begin
  FDataSet := AObject;
  IBTransaction1.DefaultDatabase := FDataSet.Database;
  if assigned(FDataSet) then
    FIBSystemTables.SelectDatabase(FDataSet.Database,IBTransaction1);
end;

end.

Revision:	7
Committed:	Sun Aug 5 18:28:19 2012 UTC (12 years, 4 months ago) by tony
Content type:	text/x-pascal
Original Path:	*ibx/trunk/design/ibdataseteditor.pas*
File size:	8493 byte(s)
Log Message:	Committing updates for Release R1-0-0
#	Content
1	(*
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 IBDataSetEditor;
28
29	{$mode objfpc}{$H+}
30
31	interface
32
33	uses
34	Classes, SysUtils, FileUtil, Forms, Controls, Graphics, Dialogs,
35	ComCtrls, StdCtrls, ExtCtrls, IBSystemTables, IBCustomDataSet, IBDatabase;
36
37	type
38
39	{ TIBDataSetEditorForm }
40
41	TIBDataSetEditorForm = class(TForm)
42	TestBtn: TButton;
43	CancelButton: TButton;
44	FieldsPage: TTabSheet;
45	GenerateButton: TButton;
46	GroupBox1: TGroupBox;
47	IBTransaction1: TIBTransaction;
48	IncludePrimaryKeys: TCheckBox;
49	PrimaryKeyList: TListBox;
50	Label1: TLabel;
51	Label2: TLabel;
52	Label3: TLabel;
53	Label4: TLabel;
54	OkButton: TButton;
55	PageControl: TPageControl;
56	QuoteFields: TCheckBox;
57	SQLMemo: TMemo;
58	SQLPage: TTabSheet;
59	StatementType: TRadioGroup;
60	FieldList: TListBox;
61	TableNamesCombo: TComboBox;
62	procedure TestBtnClick(Sender: TObject);
63	procedure FormClose(Sender: TObject; var CloseAction: TCloseAction);
64	procedure FormShow(Sender: TObject);
65	procedure GenerateButtonClick(Sender: TObject);
66	procedure SQLMemoChange(Sender: TObject);
67	procedure SQLPageShow(Sender: TObject);
68	procedure StatementTypeClick(Sender: TObject);
69	procedure TableNamesComboCloseUp(Sender: TObject);
70	private
71	{ private declarations }
72	FDataSet: TIBDataSet;
73	FIBSystemTables: TIBSystemTables;
74	FDirty: boolean;
75	FCurrentStatement: integer;
76	FSelectSQL: TStringList;
77	FModifySQL: TStringList;
78	FInsertSQL: TStringList;
79	FDeleteSQL: TStringList;
80	FRefreshSQL: TStringList;
81	procedure UpdateSQLMemo;
82	public
83	{ public declarations }
84	constructor Create(TheOwner: TComponent); override;
85	destructor Destroy; override;
86	procedure SetDataSet(AObject: TIBDataSet);
87	end;
88
89	var
90	IBDataSetEditorForm: TIBDataSetEditorForm;
91
92	function EditIBDataSet(DataSet: TIBDataSet): boolean;
93
94	implementation
95
96	{$R *.lfm}
97
98	function EditIBDataSet(DataSet: TIBDataSet): boolean;
99	begin
100	Result := false;
101	if assigned(DataSet) and assigned(DataSet.Database) then
102	try
103	DataSet.Database.Connected := true;
104	except on E: Exception do
105	ShowMessage(E.Message)
106	end;
107
108	with TIBDataSetEditorForm.Create(Application) do
109	try
110	SetDataSet(DataSet);
111	Result := ShowModal = mrOK
112	finally
113	Free
114	end;
115
116	end;
117
118	{ TIBDataSetEditorForm }
119
120	procedure TIBDataSetEditorForm.FormShow(Sender: TObject);
121	var TableName: string;
122	begin
123	PageControl.ActivePage := FieldsPage;
124	FModifySQL.Assign(FDataSet.ModifySQL);
125	FInsertSQL.Assign(FDataSet.InsertSQL);
126	FDeleteSQL.Assign(FDataSet.DeleteSQL);
127	FRefreshSQL.Assign(FDataSet.RefreshSQL);
128	FSelectSQL.Assign(FDataSet.SelectSQL);
129	GenerateButton.Enabled := (IBTransaction1.DefaultDatabase <> nil) and IBTransaction1.DefaultDatabase.Connected;
130	TestBtn.Enabled := (IBTransaction1.DefaultDatabase <> nil) and IBTransaction1.DefaultDatabase.Connected;
131	FCurrentStatement := -1;
132	TableNamesCombo.Items.Clear;
133	FIBSystemTables.GetTableNames(TableNamesCombo.Items);
134	if TableNamesCombo.Items.Count > 0 then
135	begin
136	TableNamesCombo.ItemIndex := 0;
137	if FSelectSQL.Text <> '' then
138	try
139	FIBSystemTables.GetTableAndColumns(FSelectSQL.Text,TableName,nil);
140	TableNamesCombo.ItemIndex := TableNamesCombo.Items.IndexOf(TableName);
141	except end;//ignore
142	FIBSystemTables.GetFieldNames(TableNamesCombo.Text,FieldList.Items,IncludePrimaryKeys.checked,false);
143	FIBSystemTables.GetPrimaryKeys(TableNamesCombo.Text,PrimaryKeyList.Items);
144	end;
145	end;
146
147	procedure TIBDataSetEditorForm.FormClose(Sender: TObject;
148	var CloseAction: TCloseAction);
149	begin
150	if ModalResult = mrOK then
151	begin
152	UpdateSQLMemo;
153	FDataSet.ModifySQL.Assign(FModifySQL);
154	FDataSet.InsertSQL.Assign(FInsertSQL);
155	FDataSet.DeleteSQL.Assign(FDeleteSQL);
156	FDataSet.RefreshSQL.Assign(FRefreshSQL);
157	FDataSet.SelectSQL.Assign(FSelectSQL);
158	end;
159	end;
160
161	procedure TIBDataSetEditorForm.TestBtnClick(Sender: TObject);
162	begin
163	if SQLMemo.Lines.Text <> '' then
164	FIBSystemTables.TestSQL(SQLMemo.Lines.Text);
165	end;
166
167	procedure TIBDataSetEditorForm.GenerateButtonClick(Sender: TObject);
168	var FieldNames: TStringList;
169	I: integer;
170	begin
171	FieldNames := TStringList.Create;
172	try
173	FRefreshSQL.Clear;
174	FSelectSQL.Clear;
175	FIBSystemTables.GetFieldNames(TableNamesCombo.Text,FieldNames);
176	FIBSystemTables.GenerateSelectSQL(TableNamesCombo.Text,QuoteFields.Checked,FieldNames,FSelectSQL);
177	FIBSystemTables.GenerateRefreshSQL(TableNamesCombo.Text,QuoteFields.Checked,FieldNames,FRefreshSQL);
178	FIBSystemTables.GenerateDeleteSQL(TableNamesCombo.Text,QuoteFields.Checked,FDeleteSQL);
179	FieldNames.Clear;
180	FIBSystemTables.GetFieldNames(TableNamesCombo.Text,FieldNames,true,false);
181	FIBSystemTables.GenerateInsertSQL(TableNamesCombo.Text,QuoteFields.Checked,
182	FieldNames,FInsertSQL);
183	if FieldList.SelCount = 0 then
184	begin
185	FIBSystemTables.GenerateModifySQL(TableNamesCombo.Text,QuoteFields.Checked,
186	FieldList.Items,FModifySQL);
187
188	end
189	else
190	begin
191	FieldNames.Clear;
192	for I := 0 to FieldList.Items.Count - 1 do
193	if FieldList.Selected[I] then
194	FieldNames.Add(FieldList.Items[I]);
195	FIBSystemTables.GenerateModifySQL(TableNamesCombo.Text,QuoteFields.Checked,
196	FieldNames,FModifySQL);
197	end;
198	FDirty := false;
199	PageControl.ActivePage := SQLPage;
200	finally
201	FieldNames.Free
202	end;
203	end;
204
205	procedure TIBDataSetEditorForm.SQLMemoChange(Sender: TObject);
206	begin
207	FDirty := true
208	end;
209
210	procedure TIBDataSetEditorForm.SQLPageShow(Sender: TObject);
211	begin
212	UpdateSQLMemo
213	end;
214
215	procedure TIBDataSetEditorForm.StatementTypeClick(Sender: TObject);
216	begin
217	UpdateSQLMemo
218	end;
219
220	procedure TIBDataSetEditorForm.TableNamesComboCloseUp(Sender: TObject);
221	begin
222	FIBSystemTables.GetFieldNames(TableNamesCombo.Text,FieldList.Items,IncludePrimaryKeys.checked,false);
223	FIBSystemTables.GetPrimaryKeys(TableNamesCombo.Text,PrimaryKeyList.Items);
224	end;
225
226	procedure TIBDataSetEditorForm.UpdateSQLMemo;
227	begin
228	if FDirty then
229	case FCurrentStatement of
230	0: // Select
231	FSelectSQL.Assign(SQLMemo.Lines);
232	1: //Modify
233	FModifySQL.Assign(SQLMemo.Lines);
234	2: //Insert
235	FInsertSQL.Assign(SQLMemo.Lines);
236	3: // Delete
237	FDeleteSQL.Assign(SQLMemo.Lines);
238	4: //Refresh
239	FRefreshSQL.Assign(SQLMemo.Lines);
240	end;
241	FDirty := false;
242	case StatementType.ItemIndex of
243	0: //Select
244	SQLMemo.Lines.Assign(FSelectSQL);
245	1: // Modify
246	SQLMemo.Lines.Assign(FModifySQL) ;
247	2: //Insert
248	SQLMemo.Lines.Assign(FInsertSQL) ;
249	3: // Delete
250	SQLMemo.Lines.Assign(FDeleteSQL) ;
251	4: //Refresh
252	SQLMemo.Lines.Assign(FRefreshSQL) ;
253	end;
254	FCurrentStatement := StatementType.ItemIndex;
255	end;
256
257	constructor TIBDataSetEditorForm.Create(TheOwner: TComponent);
258	begin
259	inherited Create(TheOwner);
260	FIBSystemTables := TIBSystemTables.Create;
261	FModifySQL := TStringList.Create;
262	FInsertSQL := TStringList.Create;
263	FDeleteSQL := TStringList.Create;
264	FRefreshSQL := TStringList.Create;
265	FSelectSQL := TStringList.Create;
266	end;
267
268	destructor TIBDataSetEditorForm.Destroy;
269	begin
270	if assigned(FIBSystemTables) then FIBSystemTables.Free;
271	if assigned(FModifySQL) then FModifySQL.Free;
272	if assigned(FInsertSQL) then FInsertSQL.Free;
273	if assigned(FDeleteSQL) then FDeleteSQL.Free;
274	if assigned(FRefreshSQL) then FRefreshSQL.Free;
275	if assigned(FSelectSQL) then FSelectSQL.Free;
276	inherited Destroy;
277	end;
278
279	procedure TIBDataSetEditorForm.SetDataSet(AObject: TIBDataSet);
280	begin
281	FDataSet := AObject;
282	IBTransaction1.DefaultDatabase := FDataSet.Database;
283	if assigned(FDataSet) then
284	FIBSystemTables.SelectDatabase(FDataSet.Database,IBTransaction1);
285	end;
286
287	end.
288