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tony |
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unit Test06; |
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{$mode objfpc}{$H+} |
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{Test 6: Multi-Database Transaction} |
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{ creates two databases and adds a record to each as a multi-database transaction. |
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Commit and print results. |
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} |
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interface |
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uses |
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Classes, SysUtils, TestApplication, IBXTestBase, IB, IBDatabase, IBSQL; |
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const |
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aTestID = '06'; |
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aTestTitle = 'Multi-Database Transaction'; |
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type |
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{ TTest6 } |
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TTest6 = class(TIBXTestBase) |
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private |
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FIBDatabase2: TIBDatabase; |
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FIBTransaction2: TIBTransaction; |
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FIBMultiTransaction: TIBTransaction; |
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FIBSQL: TIBSQL; |
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procedure HandleCreateDatebase(Sender: TObject); |
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protected |
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procedure CreateObjects(Application: TTestApplication); override; |
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function GetTestID: AnsiString; override; |
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function GetTestTitle: AnsiString; override; |
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procedure InitTest; override; |
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public |
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procedure RunTest(CharSet: AnsiString; SQLDialect: integer); override; |
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end; |
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implementation |
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const |
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InsertSQL = 'Insert into IBXTEST(TABLEKEY, F1) VALUES(GEN_ID(IBXGEN,1),?) Returning TABLEKEY'; |
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SelectSQL = 'Select TABLEKEY, F1 From IBXTest'; |
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{ TTest6 } |
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procedure TTest6.HandleCreateDatebase(Sender: TObject); |
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begin |
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InitialiseDatabase(FIBDatabase2); |
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end; |
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procedure TTest6.CreateObjects(Application: TTestApplication); |
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begin |
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inherited CreateObjects(Application); |
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FIBDatabase2 := TIBDatabase.Create(Application); |
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FIBDatabase2.FirebirdLibraryPathName := Owner.ClientLibraryPath; |
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FIBDatabase2.LoginPrompt := false; |
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FIBDatabase2.Params.Add('user_name=' + Owner.GetUserName); |
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FIBDatabase2.Params.Add('password=' + Owner.GetPassword); |
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FIBDatabase2.Params.Add('lc_ctype=UTF8'); |
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FIBDatabase2.OnCreateDatabase := @HandleCreateDatebase; |
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FIBDatabase2.Name := 'Test_Database2_' + GetTestID; |
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FIBTransaction2 := TIBTransaction.Create(Application); |
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FIBTransaction2.DefaultDatabase := FIBDatabase2; |
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FIBDatabase2.DefaultTransaction := FIBTransaction2; |
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FIBTransaction2.Name := 'Test_Transaction2_' + GetTestID; |
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FIBTransaction2.Params.Add('concurrency'); |
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FIBTransaction2.Params.Add('wait'); |
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FIBTransaction2.Params.Add('write'); |
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FIBMultiTransaction := TIBTransaction.Create(Application); |
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FIBMultiTransaction.AddDatabase(IBDatabase); |
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FIBMultiTransaction.AddDatabase(FIBDatabase2); |
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FIBMultiTransaction.Name := 'Multi_Transaction'; |
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FIBMultiTransaction.Params.Add('concurrency'); |
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FIBMultiTransaction.Params.Add('wait'); |
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FIBMultiTransaction.Params.Add('write'); |
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FIBSQL := TIBSQL.Create(Application); |
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FIBSQL.ParamCheck := false; |
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end; |
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function TTest6.GetTestID: AnsiString; |
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begin |
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Result := aTestID; |
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end; |
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function TTest6.GetTestTitle: AnsiString; |
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begin |
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Result := aTestTitle; |
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end; |
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procedure TTest6.InitTest; |
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begin |
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IBDatabase.DatabaseName := Owner.GetNewDatabaseName; |
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IBDatabase.CreateIfNotExists := true; |
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ReadWriteTransaction; |
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FIBDatabase2.DatabaseName := Owner.GetSecondNewDatabaseName; |
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FIBDatabase2.CreateIfNotExists := true; |
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end; |
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procedure TTest6.RunTest(CharSet: AnsiString; SQLDialect: integer); |
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begin |
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try |
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IBDatabase.Connected := true; |
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FIBDatabase2.Connected := true; |
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FIBMultiTransaction.Active := true; |
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FIBSQL.Database := IBDatabase; |
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FIBSQL.Transaction := FIBMultiTransaction; |
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FIBSQL.SQL.Text := InsertSQL; |
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FIBSQL.Params[0].AsInteger := 1; |
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writeln(OutFile,'Add Row to First Database'); |
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FIBSQL.ExecQuery; |
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ReportResult(FIBSQL.Current); |
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FIBSQL.Database := FIBDatabase2; |
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FIBSQL.Params[0].AsInteger := 2; |
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writeln(OutFile,'Add Row to Second Database'); |
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FIBSQL.ExecQuery; |
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ReportResult(FIBSQL.Current); |
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FIBMultiTransaction.Commit; |
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FIBSQL.Database := IBDatabase; |
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FIBSQL.Transaction := IBTransaction; |
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FIBSQL.SQL.Text := SelectSQL; |
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IBTransaction.Active := true; |
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FIBSQL.Prepare; |
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writeln(OutFile,'Query First Database'); |
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ReportResults(FIBSQL.Statement); |
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FIBSQL.Database := FIBDatabase2; |
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FIBSQL.Transaction := FIBTransaction2; |
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FIBTransaction2.Active := true; |
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FIBSQL.Prepare; |
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writeln(OutFile,'Query Second Database'); |
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ReportResults(FIBSQL.Statement); |
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finally |
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IBDatabase.DropDatabase; |
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FIBDatabase2.DropDatabase; |
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end; |
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end; |
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initialization |
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RegisterTest(TTest6); |
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end. |
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