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(*
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* IBX Test suite. This program is used to test the IBX non-visual
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* components and provides a semi-automated pass/fail check for each test.
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*
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* The contents of this file are subject to the Initial Developer's
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* Public License Version 1.0 (the "License"); you may not use this
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* file except in compliance with the License. You may obtain a copy
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* of the License here:
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*
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* http://www.firebirdsql.org/index.php?op=doc&id=idpl
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing rights
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* and limitations under the License.
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*
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* The Initial Developer of the Original Code is Tony Whyman.
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*
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* The Original Code is (C) 2021 Tony Whyman, MWA Software
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* (http://www.mwasoftware.co.uk).
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*
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* All Rights Reserved.
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*
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* Contributor(s): ______________________________________.
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*
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*)
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unit Test01;
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{$mode objfpc}{$H+}
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{Test 1: Open and read from Employee Database}
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{ This is a simple use of IBX to access the employee database in console mode.
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The program opens the database, runs a query and writes the result to stdout.
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The test is run first with unidirectional buffering and then with bi-directional
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buffering.
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Both client side and server side filters are tested with bi-directional buffering.
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Finally, a beforeOpen handler is used to dynamically filter the results.
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}
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interface
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uses
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Classes, SysUtils, TestApplication, IBXTestBase, DB, IB, IBCustomDataSet, IBDatabase, IBQuery;
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const
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aTestID = '01';
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aTestTitle = 'Open and read from Employee Database';
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type
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{ TTest1 }
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TTest1 = class(TIBXTestBase)
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private
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procedure ClientSideFilter(DataSet: TDataSet; var Accept: Boolean);
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procedure HandleBeforeOpen(DataSet: TDataSet);
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protected
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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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sqlExample =
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'with recursive Depts As ( '+
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'Select DEPT_NO, DEPARTMENT, HEAD_DEPT, cast(DEPARTMENT as VarChar(256)) as DEPT_PATH,'+
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'cast(DEPT_NO as VarChar(64)) as DEPT_KEY_PATH '+
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'From DEPARTMENT Where HEAD_DEPT is NULL '+
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'UNION ALL '+
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'Select D.DEPT_NO, D.DEPARTMENT, D.HEAD_DEPT, Depts.DEPT_PATH || '' / '' || D.DEPARTMENT as DEPT_PATH,'+
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'Depts.DEPT_KEY_PATH || '';'' || D.DEPT_NO as DEPT_KEY_PATH '+
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'From DEPARTMENT D '+
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'JOIN Depts On D.HEAD_DEPT = Depts.DEPT_NO '+
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')'+
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'Select A.EMP_NO, A.FIRST_NAME, A.LAST_NAME, A.PHONE_EXT, A.HIRE_DATE, A.DEPT_NO, A.JOB_CODE,'+
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'A.JOB_GRADE, A.JOB_COUNTRY, A.SALARY, A.FULL_NAME, D.DEPT_PATH, D.DEPT_KEY_PATH '+
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'From EMPLOYEE A '+
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'JOIN Depts D On D.DEPT_NO = A.DEPT_NO';
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{ TTest1 }
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procedure TTest1.ClientSideFilter(DataSet: TDataSet; var Accept: Boolean);
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begin
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Accept := DataSet.FieldByName('HIRE_DATE').AsDateTime > EncodeDate(1994 ,1,1);
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end;
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procedure TTest1.HandleBeforeOpen(DataSet: TDataSet);
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begin
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(DataSet as TIBParserDataSet).Parser.Add2WhereClause('FIRST_NAME = :FN');
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(DataSet as TIBQuery).ParamByName('FN').AsString := 'Claudia';
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end;
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function TTest1.GetTestID: AnsiString;
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begin
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Result := aTestID;
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end;
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function TTest1.GetTestTitle: AnsiString;
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begin
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Result := aTestTitle;
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end;
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procedure TTest1.InitTest;
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begin
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inherited InitTest;
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IBDatabase.DatabaseName := Owner.GetEmployeeDatabaseName;
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ReadOnlyTransaction;
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end;
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procedure TTest1.RunTest(CharSet: AnsiString; SQLDialect: integer);
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var stats: TPerfCounters;
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begin
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with IBQuery do
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begin
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AllowAutoActivateTransaction := true;
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writeln(OutFile,'Read dataset unidirectional buffering');
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Unidirectional := true;
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SQL.Text := sqlExample;
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EnableStatistics := true;
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Active := true;
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PrintDataSet(IBQuery);
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if GetPerfStatistics(stats) then
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WritePerfStats(stats);
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PrintAffectedRows(IBQuery);
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writeln(OutFile);
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writeln(OutFile,'Reconnect');
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writeln(OutFile,'Read dataset bidirectional buffering');
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IBDatabase.ReConnect;
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Unidirectional := false;
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Active := true;
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PrintDataSet(IBQuery);
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Active := false;
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writeln(OutFile,'Server Side Filter: Hire Date < 1/1/90');
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SQLFiltered := true;
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SQLFilterParams.Text := 'HIRE_DATE < ''1990.01.01''';
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Active := true;
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PrintDataSet(IBQuery);
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Active := false;
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writeln(Outfile,'Client side Filter: Hire Date > 1/1/94');
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SQLFiltered := false;
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Filtered := true;
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OnFilterRecord := @ClientSideFilter;
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Active := true;
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PrintDataSet(IBQuery);
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Active := false;
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Filtered := false;
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writeln(Outfile,'TIBQuery with open parameters - select only records with First Name = Claudia');
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BeforeOpen := @HandleBeforeOpen;
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Active := true;
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PrintDataSet(IBQuery);
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end;
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end;
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initialization
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RegisterTest(TTest1);
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end.
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