| 1 |
(*
|
| 2 |
* IBX For Lazarus (Firebird Express)
|
| 3 |
*
|
| 4 |
* The contents of this file are subject to the Initial Developer's
|
| 5 |
* Public License Version 1.0 (the "License"); you may not use this
|
| 6 |
* file except in compliance with the License. You may obtain a copy
|
| 7 |
* of the License here:
|
| 8 |
*
|
| 9 |
* http://www.firebirdsql.org/index.php?op=doc&id=idpl
|
| 10 |
*
|
| 11 |
* Software distributed under the License is distributed on an "AS
|
| 12 |
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
|
| 13 |
* implied. See the License for the specific language governing rights
|
| 14 |
* and limitations under the License.
|
| 15 |
*
|
| 16 |
* The Initial Developer of the Original Code is Tony Whyman.
|
| 17 |
*
|
| 18 |
* The Original Code is (C) 2015 Tony Whyman, MWA Software
|
| 19 |
* (http://www.mwasoftware.co.uk).
|
| 20 |
*
|
| 21 |
* All Rights Reserved.
|
| 22 |
*
|
| 23 |
* Contributor(s): ______________________________________.
|
| 24 |
*
|
| 25 |
*)
|
| 26 |
|
| 27 |
unit Unit1;
|
| 28 |
|
| 29 |
{$mode objfpc}{$H+}
|
| 30 |
|
| 31 |
interface
|
| 32 |
|
| 33 |
uses
|
| 34 |
Classes, SysUtils, FileUtil, Forms, Controls, Graphics, Dialogs, StdCtrls, db,
|
| 35 |
IBDynamicGrid, IBDatabase, IBCustomDataSet, IBDatabaseInfo, IB;
|
| 36 |
|
| 37 |
{$DEFINE LOCALDATABASE}
|
| 38 |
|
| 39 |
const
|
| 40 |
sDatabaseName = 'IDTest.fdb'; {If LOCALDATABASE defined then prepended with
|
| 41 |
path to temp folder}
|
| 42 |
|
| 43 |
{If you want to explicitly define the test database location then undefine
|
| 44 |
LOCALDATABASE and set explicit path e.g.
|
| 45 |
|
| 46 |
sDatabaseName = 'myserver:/databases/test.fdb';
|
| 47 |
}
|
| 48 |
|
| 49 |
type
|
| 50 |
|
| 51 |
{ TForm1 }
|
| 52 |
|
| 53 |
TForm1 = class(TForm)
|
| 54 |
ApplicationProperties1: TApplicationProperties;
|
| 55 |
Button1: TButton;
|
| 56 |
IBDatabaseInfo1: TIBDatabaseInfo;
|
| 57 |
Label1: TLabel;
|
| 58 |
PostBtn: TButton;
|
| 59 |
DataSource1: TDataSource;
|
| 60 |
IBDatabase1: TIBDatabase;
|
| 61 |
IBDataSet1: TIBDataSet;
|
| 62 |
IBDynamicGrid1: TIBDynamicGrid;
|
| 63 |
IBTransaction1: TIBTransaction;
|
| 64 |
procedure ApplicationProperties1Idle(Sender: TObject; var Done: Boolean);
|
| 65 |
procedure Button1Click(Sender: TObject);
|
| 66 |
procedure FormCreate(Sender: TObject);
|
| 67 |
procedure FormShow(Sender: TObject);
|
| 68 |
procedure IBDatabase1AfterConnect(Sender: TObject);
|
| 69 |
procedure IBDatabase1CreateDatabase(Sender: TObject);
|
| 70 |
procedure PostBtnClick(Sender: TObject);
|
| 71 |
private
|
| 72 |
procedure DoConnectDatabase(Data: PtrInt);
|
| 73 |
public
|
| 74 |
|
| 75 |
end;
|
| 76 |
|
| 77 |
var
|
| 78 |
Form1: TForm1;
|
| 79 |
|
| 80 |
implementation
|
| 81 |
|
| 82 |
{$R *.lfm}
|
| 83 |
|
| 84 |
const
|
| 85 |
sqlCreateTable = 'CREATE TABLE IDTEST ('+
|
| 86 |
'"KEY" integer GENERATED BY DEFAULT AS IDENTITY, '+
|
| 87 |
'SOMETEXT varchar(64), '+
|
| 88 |
'COMPTEXT Computed By (SOMETEXT || '' has the key '' || "KEY"), '+
|
| 89 |
'PRIMARY KEY ("KEY") )';
|
| 90 |
|
| 91 |
{ TForm1 }
|
| 92 |
|
| 93 |
procedure TForm1.FormCreate(Sender: TObject);
|
| 94 |
begin
|
| 95 |
{$IFNDEF LOCALDATABASE}
|
| 96 |
IBDatabase1.DatabaseName := sDatabaseName
|
| 97 |
{$ENDIF}
|
| 98 |
end;
|
| 99 |
|
| 100 |
procedure TForm1.FormShow(Sender: TObject);
|
| 101 |
begin
|
| 102 |
Application.QueueAsyncCall(@DoConnectDatabase,0);
|
| 103 |
end;
|
| 104 |
|
| 105 |
procedure TForm1.IBDatabase1AfterConnect(Sender: TObject);
|
| 106 |
begin
|
| 107 |
IBTransaction1.Active := true;
|
| 108 |
IBDataset1.Active := true;
|
| 109 |
end;
|
| 110 |
|
| 111 |
procedure TForm1.Button1Click(Sender: TObject);
|
| 112 |
begin
|
| 113 |
IBDataset1.Append;
|
| 114 |
end;
|
| 115 |
|
| 116 |
procedure TForm1.ApplicationProperties1Idle(Sender: TObject; var Done: Boolean);
|
| 117 |
begin
|
| 118 |
PostBtn.Enabled := IBDataset1.State in [dsInsert,dsEdit];
|
| 119 |
end;
|
| 120 |
|
| 121 |
procedure TForm1.IBDatabase1CreateDatabase(Sender: TObject);
|
| 122 |
begin
|
| 123 |
if IBDatabaseInfo1.ODSMajorVersion < 12 then
|
| 124 |
begin
|
| 125 |
IBDatabase1.DropDatabase;
|
| 126 |
raise EIBClientError.Create(0,'This example requires Firebird 3');
|
| 127 |
end
|
| 128 |
else
|
| 129 |
with IBDatabase1.Attachment do
|
| 130 |
ExecImmediate([isc_tpb_write,isc_tpb_wait,isc_tpb_consistency],sqlCreateTable); {Create the table}
|
| 131 |
end;
|
| 132 |
|
| 133 |
procedure TForm1.PostBtnClick(Sender: TObject);
|
| 134 |
begin
|
| 135 |
IBDataset1.Post;
|
| 136 |
end;
|
| 137 |
|
| 138 |
procedure TForm1.DoConnectDatabase(Data: PtrInt);
|
| 139 |
begin
|
| 140 |
repeat
|
| 141 |
try
|
| 142 |
IBDatabase1.Connected := true;
|
| 143 |
except
|
| 144 |
on E:EIBClientError do
|
| 145 |
begin
|
| 146 |
Close;
|
| 147 |
Exit
|
| 148 |
end;
|
| 149 |
On E:Exception do
|
| 150 |
MessageDlg(E.Message,mtError,[mbOK],0);
|
| 151 |
end;
|
| 152 |
until IBDatabase1.Connected;
|
| 153 |
end;
|
| 154 |
|
| 155 |
end.
|
| 156 |
|
