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{************************************************************************} |
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{ } |
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{ Borland Delphi Visual Component Library } |
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{ InterBase Express core components } |
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{ } |
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{ Copyright (c) 1998-2000 Inprise Corporation } |
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{ } |
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{ InterBase Express is based in part on the product } |
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{ Free IB Components, written by Gregory H. Deatz for } |
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{ Hoagland, Longo, Moran, Dunst & Doukas Company. } |
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{ Free IB Components is used under license. } |
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{ } |
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{ The contents of this file are subject to the InterBase } |
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{ Public License Version 1.0 (the "License"); you may not } |
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{ use this file except in compliance with the License. You } |
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{ may obtain a copy of the License at http://www.Inprise.com/IPL.html } |
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{ Software distributed under the License is distributed on } |
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{ an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either } |
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{ express or implied. See the License for the specific language } |
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{ governing rights and limitations under the License. } |
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{ The Original Code was created by InterBase Software Corporation } |
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{ and its successors. } |
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{ Portions created by Inprise Corporation are Copyright (C) Inprise } |
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{ Corporation. All Rights Reserved. } |
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{ Contributor(s): Jeff Overcash } |
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{ } |
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{************************************************************************} |
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|
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unit IBDatabaseEdit; |
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|
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{$MODE Delphi} |
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|
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{$A+} (* Aligned records: On *) |
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{$B-} (* Short circuit boolean expressions: Off *) |
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{ $G+} (* Imported data: On *) |
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{$H+} (* Huge Strings: On *) |
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{$J-} (* Modification of Typed Constants: Off *) |
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{$M+} (* Generate run-time type information: On *) |
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{$O+} (* Optimization: On *) |
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{$Q-} (* Overflow checks: Off *) |
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{$R-} (* Range checks: Off *) |
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{$T+} (* Typed address: On *) |
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{ $U+} (* Pentim-safe FDIVs: On *) |
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{$W-} (* Always generate stack frames: Off *) |
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{$X+} (* Extended syntax: On *) |
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{$Z1} (* Minimum Enumeration Size: 1 Byte *) |
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|
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interface |
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|
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uses |
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SysUtils, Classes, Graphics, Controls, Forms, Dialogs, |
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StdCtrls, ExtCtrls, IBDataBase, IB, LResources; |
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|
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type |
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|
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{ TIBDatabaseEditForm } |
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|
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TIBDatabaseEditForm = class(TForm) |
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UseSystemDefaultCS: TCheckBox; |
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GroupBox2: TGroupBox; |
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Panel1: TPanel; |
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DatabaseName: TEdit; |
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Label1: TLabel; |
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LocalRbtn: TRadioButton; |
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RemoteRbtn: TRadioButton; |
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Browse: TButton; |
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GroupBox1: TGroupBox; |
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UserName: TEdit; |
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Password: TEdit; |
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SQLRole: TEdit; |
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Label2: TLabel; |
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Label3: TLabel; |
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Label4: TLabel; |
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DatabaseParams: TMemo; |
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OKBtn: TButton; |
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CancelBtn: TButton; |
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Label5: TLabel; |
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LoginPrompt: TCheckBox; |
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Label6: TLabel; |
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CharacterSet: TComboBox; |
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ServerName: TEdit; |
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Protocol: TComboBox; |
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Label7: TLabel; |
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Label8: TLabel; |
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Test: TButton; |
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procedure RemoteRbtnClick(Sender: TObject); |
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procedure BrowseClick(Sender: TObject); |
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procedure LocalRbtnClick(Sender: TObject); |
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procedure OKBtnClick(Sender: TObject); |
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procedure FormCreate(Sender: TObject); |
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procedure HelpBtnClick(Sender: TObject); |
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procedure UserNameChange(Sender: TObject); |
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procedure PasswordChange(Sender: TObject); |
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procedure SQLRoleChange(Sender: TObject); |
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procedure CharacterSetChange(Sender: TObject); |
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procedure TestClick(Sender: TObject); |
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procedure UseSystemDefaultCSChange(Sender: TObject); |
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private |
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{ Private declarations } |
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Database: TIBDatabase; |
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function Edit: Boolean; |
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function GetParam(Name: string): string; |
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procedure AddParam(Name, Value: string); |
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procedure DeleteParam(Name: string); |
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public |
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{ Public declarations } |
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end; |
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|
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var |
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IBDatabaseEditForm: TIBDatabaseEditForm; |
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|
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function EditIBDatabase(ADatabase: TIBDatabase): Boolean; |
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|
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implementation |
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|
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{$R *.lfm} |
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|
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uses TypInfo, FBMessages; |
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|
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function EditIBDatabase(ADatabase: TIBDatabase): Boolean; |
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begin |
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with TIBDatabaseEditForm.Create(Application) do |
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try |
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Database := ADatabase; |
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Result := Edit; |
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finally |
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Free; |
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end; |
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end; |
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|
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function TIBDatabaseEditForm.GetParam(Name: string): string; |
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var |
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i: Integer; |
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begin |
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Result := ''; |
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for i := 0 to DatabaseParams.Lines.Count - 1 do |
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begin |
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if (Pos(Name, LowerCase(DatabaseParams.Lines.Names[i])) = 1) then {mbcs ok} |
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begin |
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Result := DatabaseParams.Lines.Values[DatabaseParams.Lines.Names[i]]; |
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break; |
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end; |
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end; |
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end; |
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|
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procedure TIBDatabaseEditForm.AddParam(Name, Value: string); |
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var |
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i: Integer; |
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found: boolean; |
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begin |
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found := False; |
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if Trim(Value) <> '' then |
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begin |
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DatabaseParams.Lines.NameValueSeparator := '='; |
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for i := 0 to DatabaseParams.Lines.Count - 1 do |
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begin |
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if (Pos(Name, LowerCase(DatabaseParams.Lines.Names[i])) = 1) then {mbcs ok} |
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begin |
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DatabaseParams.Lines.Values[DatabaseParams.Lines.Names[i]] := Value; |
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found := True; |
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break; |
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end; |
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end; |
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if not found then |
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DatabaseParams.Lines.Add(Name + '=' + Value); |
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end |
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else |
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DeleteParam(Name); |
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end; |
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|
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procedure TIBDatabaseEditForm.DeleteParam(Name: string); |
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var |
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i: Integer; |
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begin |
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for i := 0 to DatabaseParams.Lines.Count - 1 do |
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begin |
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if (Pos(Name, LowerCase(DatabaseParams.Lines.Names[i])) = 1) then {mbcs ok} |
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begin |
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DatabaseParams.Lines.Delete(i); |
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break; |
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end; |
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end; |
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end; |
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|
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function TIBDatabaseEditForm.Edit: Boolean; |
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var |
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st: string; |
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|
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procedure DecomposeDatabaseName; |
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var |
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Idx1, Idx2: Integer; |
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st: string; |
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begin |
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if Pos('\\', Database.DatabaseName) <> 0 then {do not localize} |
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begin |
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LocalRBtn.Checked := False; |
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RemoteRbtn.Checked := True; |
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Protocol.ItemIndex := 1; |
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st := copy(Database.DatabaseName, 3, Length(Database.DatabaseName)); |
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Idx1 := Pos('\', st); {do not localize} |
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if Idx1 = 0 then |
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IBError(ibxeUnknownError, [nil]) |
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else begin |
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ServerName.Text := Copy(st, 1, Idx1 - 1); |
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DatabaseName.Text:= Copy(st, Idx1 + 1, Length(st)); |
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end; |
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end |
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else begin |
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Idx1 := Pos(':', Database.DatabaseName ); {do not localize} |
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If (Idx1 = 0) or (Idx1 = 2) then |
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begin |
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DatabaseName.Text := Database.DatabaseName; |
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end |
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else |
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begin |
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LocalRBtn.Checked := False; |
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RemoteRbtn.Checked := True; |
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Idx2 := Pos('@', Database.DatabaseName); {do not localize} |
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if Idx2 = 0 then |
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begin |
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Protocol.ItemIndex := 0; |
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ServerName.Text := copy(Database.DatabaseName, 1, Idx1 - 1); |
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DatabaseName.Text := copy(Database.DatabaseName, Idx1 + 1, |
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Length(Database.DatabaseName)); |
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end |
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else begin |
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Protocol.ItemIndex := 2; |
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ServerName.Text := copy(Database.DatabaseName, 1, Idx2 - 1); |
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DatabaseName.Text := copy(Database.DatabaseName, Idx2 + 1, |
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Length(Database.DatabaseName)); |
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end; |
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end; |
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end; |
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end; |
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begin |
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DecomposeDatabaseName; |
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if Trim(Database.Params.Text) = '' then |
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DatabaseParams.Clear |
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else |
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DatabaseParams.Lines.Assign(Database.Params); |
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LoginPrompt.Checked := Database.LoginPrompt; |
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UserName.Text := GetParam('user_name'); |
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Password.Text := GetParam('password'); |
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SQLRole.Text := GetParam('sql_role'); |
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st := GetParam('lc_ctype'); |
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if (st <> '') then |
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CharacterSet.ItemIndex := CharacterSet.Items.IndexOf(st); |
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if Database.UseDefaultSystemCodePage then |
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UseSystemDefaultCS.Checked := true |
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else |
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UseSystemDefaultCS.Checked := false; |
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Result := False; |
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if ShowModal = mrOk then |
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begin |
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Database.DatabaseName := DatabaseName.Text; |
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if LocalRbtn.Checked then |
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DatabaseName.Text := Database.DatabaseName |
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else |
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case Protocol.ItemIndex of |
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0: Database.DatabaseName := Format('%s:%s', [ServerName.Text, DatabaseName.Text]); {do not localize} |
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1: Database.DatabaseName := Format('\\%s\%s', [ServerName.Text, DatabaseName.Text]); {do not localize} |
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2: Database.DatabaseName := Format('%s@%s', [ServerName.Text, DatabaseName.Text]); {do not localize} |
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end; |
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Database.Params := DatabaseParams.Lines; |
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Database.LoginPrompt := LoginPrompt.Checked; |
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Database.UseDefaultSystemCodePage := UseSystemDefaultCS.Checked; |
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Result := True; |
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end; |
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end; |
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|
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procedure TIBDatabaseEditForm.RemoteRbtnClick(Sender: TObject); |
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begin |
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Browse.Enabled := False; |
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Label7.Enabled := True; |
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Label8.Enabled := True; |
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Protocol.Enabled := True; |
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ServerName.Enabled := True; |
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if Protocol.Text = '' then |
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Protocol.Text := 'TCP'; |
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end; |
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|
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procedure TIBDatabaseEditForm.BrowseClick(Sender: TObject); |
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begin |
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with TOpenDialog.Create(Application) do |
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try |
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InitialDir := ExtractFilePath(DatabaseName.Text); |
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Filter := SDatabaseFilter; |
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if Execute then |
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DatabaseName.Text := FileName; |
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finally |
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Free |
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end; |
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end; |
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|
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procedure TIBDatabaseEditForm.LocalRbtnClick(Sender: TObject); |
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begin |
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Browse.Enabled := True; |
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Label7.Enabled := False; |
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Label8.Enabled := False; |
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ServerName.Enabled := False; |
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Protocol.Enabled := False; |
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end; |
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|
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procedure TIBDatabaseEditForm.OKBtnClick(Sender: TObject); |
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begin |
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ModalResult := mrNone; |
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if Database.Connected then |
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begin |
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if MessageDlg(SDisconnectDatabase, mtConfirmation, |
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mbOkCancel, 0) <> mrOk then Exit; |
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Database.Close; |
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end; |
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ModalResult := mrOk; |
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end; |
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|
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procedure TIBDatabaseEditForm.FormCreate(Sender: TObject); |
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begin |
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// HelpContext := hcDIBDataBaseEdit; |
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end; |
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|
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procedure TIBDatabaseEditForm.HelpBtnClick(Sender: TObject); |
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begin |
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Application.HelpContext(HelpContext); |
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end; |
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|
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procedure TIBDatabaseEditForm.UserNameChange(Sender: TObject); |
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begin |
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AddParam('user_name', UserName.Text); |
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end; |
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|
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procedure TIBDatabaseEditForm.PasswordChange(Sender: TObject); |
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begin |
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AddParam('password', Password.Text); |
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end; |
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|
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procedure TIBDatabaseEditForm.SQLRoleChange(Sender: TObject); |
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begin |
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AddParam('sql_role_name', SQLRole.Text); |
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end; |
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|
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procedure TIBDatabaseEditForm.CharacterSetChange(Sender: TObject); |
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begin |
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if (CharacterSet.Text <> 'None') then {do not localize} |
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AddParam('lc_ctype', CharacterSet.Text) |
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else |
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DeleteParam('lc_ctype'); |
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end; |
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|
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procedure TIBDatabaseEditForm.TestClick(Sender: TObject); |
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var |
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tempDB : TIBDatabase; |
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begin |
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Test.Enabled := false; |
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tempDB := TIBDatabase.Create(nil); |
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try |
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if LocalRbtn.Checked then |
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tempDB.DatabaseName := DatabaseName.Text |
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else |
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case Protocol.ItemIndex of |
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0: tempDB.DatabaseName := Format('%s:%s', [ServerName.Text, DatabaseName.Text]); {do not localize} |
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1: tempDB.DatabaseName := Format('\\%s\%s', [ServerName.Text, DatabaseName.Text]); {do not localize} |
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2: tempDB.DatabaseName := Format('%s@%s', [ServerName.Text, DatabaseName.Text]); {do not localize} |
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end; |
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tempDB.Params.Assign(DatabaseParams.Lines); |
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tempDB.LoginPrompt := LoginPrompt.Checked; |
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try |
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tempDB.Connected := true; |
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ShowMessage('Successful Connection'); |
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except on E: Exception do |
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ShowMessage(E.Message) |
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end; |
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finally |
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tempDB.Free; |
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Test.Enabled := true; |
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end; |
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end; |
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|
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procedure TIBDatabaseEditForm.UseSystemDefaultCSChange(Sender: TObject); |
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begin |
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CharacterSet.Enabled := not UseSystemDefaultCS.Checked; |
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if UseSystemDefaultCS.Checked then |
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DeleteParam('lc_ctype') |
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else |
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if (CharacterSet.Text <> 'None') then {do not localize} |
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AddParam('lc_ctype', CharacterSet.Text) |
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end; |
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|
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|
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end. |