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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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SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
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StdCtrls, ExtCtrls, IBDatabase, IB, LResources;
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type
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{ TIBDatabaseEditForm }
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TIBDatabaseEditForm = class(TForm)
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Browse: TButton;
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DatabasePath: TEdit;
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Label1: TLabel;
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Label7: TLabel;
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Label8: TLabel;
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Label9: TLabel;
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PortNo: TEdit;
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Protocol: TComboBox;
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ConnectionTypeBtn: TRadioGroup;
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ServerName: TEdit;
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UseSystemDefaultCS: TCheckBox;
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Panel1: TPanel;
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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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Test: TButton;
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procedure BrowseClick(Sender: TObject);
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procedure DatabaseParamsEditingDone(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 PasswordEditingDone(Sender: TObject);
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procedure ProtocolCloseUp(Sender: TObject);
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procedure ConnectionTypeBtnSelectionChanged(Sender: TObject);
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procedure SQLRoleEditingDone(Sender: TObject);
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procedure CharacterSetChange(Sender: TObject);
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procedure TestClick(Sender: TObject);
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procedure UserNameEditingDone(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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procedure AddParam(aName, aValue: string);
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procedure DeleteParam(aName: string);
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procedure UpdateParamEditBoxes;
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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, FBMessages, IBUtils;
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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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procedure TIBDatabaseEditForm.AddParam(aName, aValue: string);
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begin
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if Trim(aValue) = '' then
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DeleteParam(aName)
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else
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DatabaseParams.Lines.Values[aName] := Trim(aValue);
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end;
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procedure TIBDatabaseEditForm.DeleteParam(aName: 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(aName, 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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procedure TIBDatabaseEditForm.UpdateParamEditBoxes;
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var st: string;
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begin
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UserName.Text := DatabaseParams.Lines.Values['user_name'];
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Password.Text := DatabaseParams.Lines.Values['password'];
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SQLRole.Text := DatabaseParams.Lines.Values['sql_role_name'];
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st := DatabaseParams.Lines.Values['lc_ctype'];
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if (st <> '') then
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CharacterSet.ItemIndex := CharacterSet.Items.IndexOf(st)
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else
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CharacterSet.ItemIndex := -1;
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end;
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function TIBDatabaseEditForm.Edit: Boolean;
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var
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aServerName: string;
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aDatabaseName: string;
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aProtocol: TProtocolAll;
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aPortNo: string;
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begin
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if ParseConnectString(Database.DatabaseName, aServerName, aDatabaseName, aProtocol, aPortNo) then
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begin
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ServerName.Text := aServerName;
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DatabasePath.Text := aDatabaseName;
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Protocol.ItemIndex := ord(aProtocol);
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PortNo.Text := aPortNo;
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end;
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ProtocolCloseUp(nil);
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ConnectionTypeBtnSelectionChanged(nil);
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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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UpdateParamEditBoxes;
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UseSystemDefaultCS.Checked := Database.UseDefaultSystemCodePage;
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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 := MakeConnectString(ServerName.Text, DatabasePath.Text,
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TProtocolAll(Protocol.ItemIndex), PortNo.Text);
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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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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(DatabasePath.Text);
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Filter := SDatabaseFilter;
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if Execute then
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DatabasePath.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.DatabaseParamsEditingDone(Sender: TObject);
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begin
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UpdateParamEditBoxes;
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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.PasswordEditingDone(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.ProtocolCloseUp(Sender: TObject);
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begin
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if Protocol.ItemIndex = 3 then
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ConnectionTypeBtn.ItemIndex := 0
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else
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ConnectionTypeBtn.ItemIndex := 1;
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end;
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procedure TIBDatabaseEditForm.ConnectionTypeBtnSelectionChanged(Sender: TObject);
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begin
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if ConnectionTypeBtn.ItemIndex > 0 then
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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.ItemIndex = 3 then
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Protocol.ItemIndex := 4;
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end
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else
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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 := true;
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ServerName.Text := '';
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ServerName.Enabled := False;
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Protocol.Enabled := true;
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Protocol.ItemIndex := 3;
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end;
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end;
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procedure TIBDatabaseEditForm.SQLRoleEditingDone(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.ItemIndex <> -1 ) 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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tempDB.DatabaseName := MakeConnectString(ServerName.Text, DatabasePath.Text,
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TProtocolAll(Protocol.ItemIndex), PortNo.Text);
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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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procedure TIBDatabaseEditForm.UserNameEditingDone(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.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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end.
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