trunk/testsuite/Test01.pas

unit Test01;

{$mode objfpc}{$H+}

{Test 1: Open and read from Employee Database}

{  This is a simple use of IBX to access the employee database in console mode.
  The program opens the database, runs a query and writes the result to stdout.

  The test is run first with unidirectional buffering and then with bi-directional
  buffering.

  Both client side and server side filters are tested with bi-directional buffering.

  Finally, a beforeOpen handler is used to dynamically filter the results.

}

interface

uses
  Classes, SysUtils, TestApplication, IBXTestBase, DB, IB, IBCustomDataSet, IBDatabase, IBQuery;

const
  aTestID    = '01';
  aTestTitle = 'Open and read from Employee Database';

type

{ TTest1 }

  TTest1 = class(TIBXTestBase)
  private
    procedure ClientSideFilter(DataSet: TDataSet; var Accept: Boolean);
    procedure HandleBeforeOpen(DataSet: TDataSet);
  protected
    function GetTestID: AnsiString; override;
    function GetTestTitle: AnsiString; override;
    procedure InitTest; override;
  public
    procedure RunTest(CharSet: AnsiString; SQLDialect: integer); override;
  end;


implementation

const
  sqlExample =
'with recursive Depts As (   '+
'Select DEPT_NO, DEPARTMENT, HEAD_DEPT, cast(DEPARTMENT  as VarChar(256)) as DEPT_PATH,'+
'cast(DEPT_NO as VarChar(64)) as DEPT_KEY_PATH '+
'From DEPARTMENT Where HEAD_DEPT is NULL '+
'UNION ALL '+
'Select D.DEPT_NO, D.DEPARTMENT, D.HEAD_DEPT, Depts.DEPT_PATH ||  '' / '' || D.DEPARTMENT as DEPT_PATH,'+
'Depts.DEPT_KEY_PATH || '';'' || D.DEPT_NO as DEPT_KEY_PATH '+
'From DEPARTMENT D '+
'JOIN Depts On D.HEAD_DEPT = Depts.DEPT_NO '+
')'+

'Select A.EMP_NO, A.FIRST_NAME, A.LAST_NAME, A.PHONE_EXT, A.HIRE_DATE, A.DEPT_NO, A.JOB_CODE,'+
'A.JOB_GRADE, A.JOB_COUNTRY, A.SALARY, A.FULL_NAME, D.DEPT_PATH, D.DEPT_KEY_PATH '+
'From EMPLOYEE A '+
'JOIN Depts D On D.DEPT_NO = A.DEPT_NO';

  { TTest1 }

procedure TTest1.ClientSideFilter(DataSet: TDataSet; var Accept: Boolean);
begin
  Accept := DataSet.FieldByName('HIRE_DATE').AsDateTime > EncodeDate(1994 ,1,1);
end;

procedure TTest1.HandleBeforeOpen(DataSet: TDataSet);
begin
  (DataSet as TIBParserDataSet).Parser.Add2WhereClause('FIRST_NAME = :FN');
  (DataSet as TIBQuery).ParamByName('FN').AsString := 'Claudia';
end;

function TTest1.GetTestID: AnsiString;
begin
  Result := aTestID;
end;

function TTest1.GetTestTitle: AnsiString;
begin
  Result := aTestTitle;
end;

procedure TTest1.InitTest;
begin
  inherited InitTest;
  IBDatabase.DatabaseName := Owner.GetEmployeeDatabaseName;
  ReadOnlyTransaction;
end;

procedure TTest1.RunTest(CharSet: AnsiString; SQLDialect: integer);
var stats: TPerfCounters;
begin
  with IBQuery do
  begin
     AllowAutoActivateTransaction := true;
     writeln(OutFile,'Read dataset unidirectional buffering');
     Unidirectional := true;
     SQL.Text := sqlExample;
     EnableStatistics := true;
     Active := true;
     PrintDataSet(IBQuery);

     if GetPerfStatistics(stats) then
       WritePerfStats(stats);
     PrintAffectedRows(IBQuery);
     writeln(OutFile);
     writeln(OutFile,'Reconnect');
     writeln(OutFile,'Read dataset bidirectional buffering');
     IBDatabase.ReConnect;
     Unidirectional := false;
     Active := true;
     PrintDataSet(IBQuery);
     Active := false;
     writeln(OutFile,'Server Side Filter: Hire Date < 1/1/90');
     SQLFiltered := true;
     SQLFilterParams.Text := 'HIRE_DATE < ''1990.01.01''';
     Active := true;
     PrintDataSet(IBQuery);
     Active := false;
     writeln(Outfile,'Client side Filter: Hire Date > 1/1/94');
     SQLFiltered := false;
     Filtered := true;
     OnFilterRecord := @ClientSideFilter;
     Active := true;
     PrintDataSet(IBQuery);
     Active := false;
     Filtered := false;
     writeln(Outfile,'TIBQuery with open parameters - select only records with First Name = Claudia');
     BeforeOpen := @HandleBeforeOpen;
     Active := true;
     PrintDataSet(IBQuery);

  end;
end;

initialization
  RegisterTest(TTest1);

end.

Revision:	315
Committed:	Thu Feb 25 11:56:36 2021 UTC (3 years, 8 months ago) by tony
Content type:	text/x-pascal
File size:	3995 byte(s)
Log Message:	Updated for IBX 4 release
#	User	Rev	Content
1	tony	315	unit Test01;
2
3			{$mode objfpc}{$H+}
4
5			{Test 1: Open and read from Employee Database}
6
7			{ This is a simple use of IBX to access the employee database in console mode.
8			The program opens the database, runs a query and writes the result to stdout.
9
10			The test is run first with unidirectional buffering and then with bi-directional
11			buffering.
12
13			Both client side and server side filters are tested with bi-directional buffering.
14
15			Finally, a beforeOpen handler is used to dynamically filter the results.
16
17			}
18
19			interface
20
21			uses
22			Classes, SysUtils, TestApplication, IBXTestBase, DB, IB, IBCustomDataSet, IBDatabase, IBQuery;
23
24			const
25			aTestID = '01';
26			aTestTitle = 'Open and read from Employee Database';
27
28			type
29
30			{ TTest1 }
31
32			TTest1 = class(TIBXTestBase)
33			private
34			procedure ClientSideFilter(DataSet: TDataSet; var Accept: Boolean);
35			procedure HandleBeforeOpen(DataSet: TDataSet);
36			protected
37			function GetTestID: AnsiString; override;
38			function GetTestTitle: AnsiString; override;
39			procedure InitTest; override;
40			public
41			procedure RunTest(CharSet: AnsiString; SQLDialect: integer); override;
42			end;
43
44
45			implementation
46
47			const
48			sqlExample =
49			'with recursive Depts As ( '+
50			'Select DEPT_NO, DEPARTMENT, HEAD_DEPT, cast(DEPARTMENT as VarChar(256)) as DEPT_PATH,'+
51			'cast(DEPT_NO as VarChar(64)) as DEPT_KEY_PATH '+
52			'From DEPARTMENT Where HEAD_DEPT is NULL '+
53			'UNION ALL '+
54			'Select D.DEPT_NO, D.DEPARTMENT, D.HEAD_DEPT, Depts.DEPT_PATH \|\| '' / '' \|\| D.DEPARTMENT as DEPT_PATH,'+
55			'Depts.DEPT_KEY_PATH \|\| '';'' \|\| D.DEPT_NO as DEPT_KEY_PATH '+
56			'From DEPARTMENT D '+
57			'JOIN Depts On D.HEAD_DEPT = Depts.DEPT_NO '+
58			')'+
59
60			'Select A.EMP_NO, A.FIRST_NAME, A.LAST_NAME, A.PHONE_EXT, A.HIRE_DATE, A.DEPT_NO, A.JOB_CODE,'+
61			'A.JOB_GRADE, A.JOB_COUNTRY, A.SALARY, A.FULL_NAME, D.DEPT_PATH, D.DEPT_KEY_PATH '+
62			'From EMPLOYEE A '+
63			'JOIN Depts D On D.DEPT_NO = A.DEPT_NO';
64
65			{ TTest1 }
66
67			procedure TTest1.ClientSideFilter(DataSet: TDataSet; var Accept: Boolean);
68			begin
69			Accept := DataSet.FieldByName('HIRE_DATE').AsDateTime > EncodeDate(1994 ,1,1);
70			end;
71
72			procedure TTest1.HandleBeforeOpen(DataSet: TDataSet);
73			begin
74			(DataSet as TIBParserDataSet).Parser.Add2WhereClause('FIRST_NAME = :FN');
75			(DataSet as TIBQuery).ParamByName('FN').AsString := 'Claudia';
76			end;
77
78			function TTest1.GetTestID: AnsiString;
79			begin
80			Result := aTestID;
81			end;
82
83			function TTest1.GetTestTitle: AnsiString;
84			begin
85			Result := aTestTitle;
86			end;
87
88			procedure TTest1.InitTest;
89			begin
90			inherited InitTest;
91			IBDatabase.DatabaseName := Owner.GetEmployeeDatabaseName;
92			ReadOnlyTransaction;
93			end;
94
95			procedure TTest1.RunTest(CharSet: AnsiString; SQLDialect: integer);
96			var stats: TPerfCounters;
97			begin
98			with IBQuery do
99			begin
100			AllowAutoActivateTransaction := true;
101			writeln(OutFile,'Read dataset unidirectional buffering');
102			Unidirectional := true;
103			SQL.Text := sqlExample;
104			EnableStatistics := true;
105			Active := true;
106			PrintDataSet(IBQuery);
107
108			if GetPerfStatistics(stats) then
109			WritePerfStats(stats);
110			PrintAffectedRows(IBQuery);
111			writeln(OutFile);
112			writeln(OutFile,'Reconnect');
113			writeln(OutFile,'Read dataset bidirectional buffering');
114			IBDatabase.ReConnect;
115			Unidirectional := false;
116			Active := true;
117			PrintDataSet(IBQuery);
118			Active := false;
119			writeln(OutFile,'Server Side Filter: Hire Date < 1/1/90');
120			SQLFiltered := true;
121			SQLFilterParams.Text := 'HIRE_DATE < ''1990.01.01''';
122			Active := true;
123			PrintDataSet(IBQuery);
124			Active := false;
125			writeln(Outfile,'Client side Filter: Hire Date > 1/1/94');
126			SQLFiltered := false;
127			Filtered := true;
128			OnFilterRecord := @ClientSideFilter;
129			Active := true;
130			PrintDataSet(IBQuery);
131			Active := false;
132			Filtered := false;
133			writeln(Outfile,'TIBQuery with open parameters - select only records with First Name = Claudia');
134			BeforeOpen := @HandleBeforeOpen;
135			Active := true;
136			PrintDataSet(IBQuery);
137
138			end;
139			end;
140
141			initialization
142			RegisterTest(TTest1);
143
144			end.
145