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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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UseWireCompression: TCheckBox; |
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DatabasePath: TEdit; |
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Label1: TLabel; |
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Label10: TLabel; |
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Label7: TLabel; |
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Label8: TLabel; |
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Label9: TLabel; |
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ConfigOverrides: TMemo; |
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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 ConfigOverridesEditingDone(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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procedure UseWireCompressionEditingDone(Sender: TObject); |
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private |
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{ Private declarations } |
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Database: TIBDatabase; |
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FChanging: boolean; |
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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, IBMessages, 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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DatabaseParams.Lines.Assign(Database.Params); |
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ConfigOverrides.Lines.Assign(Database.ConfigOverrides); |
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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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UseWireCompression.Checked := Database.WireCompression; |
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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.Assign(DatabaseParams.Lines); |
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Database.ConfigOverrides.Assign(ConfigOverrides.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.ConfigOverridesEditingDone(Sender: TObject); |
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begin |
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FChanging := true; |
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try |
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UseWireCompression.Checked := CompareText(ConfigOverrides.Lines.Values['WireCompression'],'true') = 0; |
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finally |
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FChanging := false; |
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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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procedure TIBDatabaseEditForm.UseWireCompressionEditingDone(Sender: TObject); |
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var Index: integer; |
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begin |
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if FChanging then Exit; |
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if UseWireCompression.Checked then |
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ConfigOverrides.Lines.Values['WireCompression'] := 'true' |
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else |
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begin |
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Index := ConfigOverrides.Lines.IndexOfName('WireCompression'); |
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if Index <> -1 then |
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ConfigOverrides.Lines.Delete(Index); |
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end; |
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end; |
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end. |