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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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unit IBDatabaseEdit;
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{$MODE Delphi}
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{$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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interface
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uses
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{Windows,} Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
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StdCtrls, ExtCtrls, IBDataBase, IB, IBXConst, LResources;
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type
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{ TIBDatabaseEditForm }
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TIBDatabaseEditForm = class(TForm)
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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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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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var
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IBDatabaseEditForm: TIBDatabaseEditForm;
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function EditIBDatabase(ADatabase: TIBDatabase): Boolean;
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implementation
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{$R *.lfm}
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uses TypInfo;
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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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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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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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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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function TIBDatabaseEditForm.Edit: Boolean;
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var
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st: string;
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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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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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Result := True;
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end;
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end;
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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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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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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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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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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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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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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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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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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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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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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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end.
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