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242 | {
$Id: tested.pp,v 1.3 2005/02/14 17:13:12 peter Exp $
This file is part of the Free Pascal run time library.
Copyright (c) 1999-2000 by Michael Van Canneyt, member of the
Free Pascal development team
Tests the TDDGDataset component.
See the file COPYING.FPC, included in this distribution,
for details about the copyright.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
**********************************************************************}
program testds;
uses db,ddg_ds,sysutils;
Procedure Log(Const Msg : String);
begin
Writeln(Msg);
end;
Procedure DumpFieldDef(F : TfieldDef);
begin
With F do
begin Writeln ('Name : ',Name);
Writeln ('FieldNo : ',FieldNo);
Writeln ('Size : ',Size);
Writeln ('FieldClass : ',FieldClass.ClassName);
Writeln ('Required : ',required); Writeln ('Precision : ',Precision);
Writeln ('DataType : ',FieldTypeNames[DataType]);
Writeln ('InternalCalcField : ',Internalcalcfield);
end;
end;
Procedure DumpField(F : Tfield);
begin
With F do begin
writeln ('-------------------------------------');
Writeln ('FieldName : ',FieldName);
Writeln ('FieldNo : ',FieldNo);
Writeln ('Index : ',Index); Writeln ('DataSize : ',DataSize);
Writeln ('Size : ',Size);
Writeln ('DataType : ',FieldTypeNames[DataType]);
Writeln ('Class : ',ClassName);
Writeln ('Required : ',required); Writeln ('ReadOnly : ',ReadOnly);
Writeln ('Visible : ',Visible);
end;
end;
Procedure DumpFieldData (F : TField);
begin
With F Do
begin Writeln ('Field : ',FieldName);
Writeln ('Data type : ',FieldTypeNames[DataType]);
Writeln ('As String : ',Asstring);
Case Datatype of
ftSmallint, ftInteger, ftWord : Writeln ('As longint : ',AsLongint); ftBoolean : Writeln ('As Boolean : ',AsBoolean);
ftFloat : Writeln ('As Float : ',AsFloat);
ftDate, ftTime, ftDateTime : Writeln ('As DateTime : ',DateTimeToStr(AsDateTime));
end;
end;end;
procedure DumpFields (DS : TDataset);
Var I : longint;
begin
With DS do
begin
Writeln('Dumping fields'); For I:=0 to FieldCount-1 do
DumpFieldData(Fields[i]);
end;
end;
Var
Data : TDDGdataset;
I,Count : longint;
Bookie : TBookMarkStr;
Procedure ScrollForward;
begin
Writeln ('Browsing Forward:');
Writeln ('------------------'); With Data do
While NOT EOF do
begin
Writeln ('================================================');
For I:=0 to FieldCount-1 do DumpFieldData(Fields[I]);
Next;
end;
end;
Procedure ScrollBackWard;
begin
Writeln ('Browsing Backward:');
Writeln ('-------------------'); With Data do
While NOT BOF do
begin
For I:=0 to FieldCount-1 do
DumpFieldData(Fields[I]); Prior;
end;
end;
begin if paramcount<>1 then
begin
Writeln ('Usage : testds tablename');
Halt(1);
end; Log ('Creating Dataset');
Data:=TDDGDataset.Create(Nil);
With Data do
begin
Log('Setting Tablename'); TableName:=Paramstr(1);
Log('Opening Dataset');
Open;
Log('Dumping fielddefs : ');
Writeln ('Fielddefs count : ',FieldDefs.Count); For I:=0 to FieldDefs.Count-1 do
DumpFieldDef(FieldDefs.Items[i]);
Writeln ('Fields count : ',FieldCount);
For I:=0 to FieldCount-1 do
DumpField(Fields[i]); ScrollForward;
ScrollBackWard;
Writeln ('Doing append');
writeln ('------------');
Append; FieldByName('Name').AsString:='AppendName';
FieldByName('Height').AsFloat:=9.99E9;
FieldByName('LongField').AsLongInt:=999;
FieldByName('ShoeSize').AsLongInt:=999;
FieldByName('WordField').AsLongInt:=999; FieldByName('BooleanField').AsBoolean:=False;
FieldByName('DateTimeField').AsDateTime:=Now;
FieldByName('DateField').AsDateTime:=Date;
FieldByName('TimeField').AsDateTime:=Time;
Writeln ('End of append, going to post'); Post;
DumpFields(Data);
Writeln ('Doing Last');
Writeln ('----------');
Last; DumpFields(Data);
Writeln ('Doing Prior');
Writeln ('----------');
Prior;
DumpFields(Data); Writeln ('Doing Insert at position 8');
writeln ('--------------------------');
first;
for I:=1 to 7 do
Next; Insert;
FieldByName('Name').AsString:='Insertname';
FieldByName('Height').AsFloat:=8.99E8;
FieldByName('LongField').AsLongInt:=888;
FieldByName('ShoeSize').AsLongInt:=888; FieldByName('WordField').AsLongInt:=888;
FieldByName('BooleanField').AsBoolean:=True;
FieldByName('DateTimeField').AsDateTime:=Now;
FieldByName('DateField').AsDateTime:=Date;
FieldByName('TimeField').AsDateTime:=Time; Post;
Writeln ('Doing field dump');
writeln ('----------------');
DumpFields(Data);
Writeln ('Doing Prior'); Writeln ('-----------');
Prior;
DumpFields(Data);
Writeln ('Doing Next');
Writeln ('----------'); Next;
DumpFields(Data);
Writeln ('Doing Next');
Writeln ('----------');
Next; DumpFields(Data);
Writeln ('Doing Edit at position 5');
writeln ('-------------------------');
first;
for I:=1 to 4 do Next;
Edit;
FieldByName('Name').AsString:='Editname';
FieldByName('Height').AsFloat:=3.33E3;
FieldByName('LongField').AsLongInt:=333; FieldByName('ShoeSize').AsLongInt:=333;
FieldByName('WordField').AsLongInt:=333;
FieldByName('BooleanField').AsBoolean:=False;
FieldByName('DateTimeField').AsDateTime:=Now;
FieldByName('DateField').AsDateTime:=Date; FieldByName('TimeField').AsDateTime:=Time;
Post;
Writeln ('Doing field dump');
writeln ('----------------');
DumpFields(Data); Writeln ('Doing Prior');
Writeln ('-----------');
Prior;
DumpFields(Data);
Writeln ('Doing Next'); Writeln ('----------');
Next;
DumpFields(Data);
Writeln ('Doing Next');
Writeln ('----------'); Next;
DumpFields(Data);
Writeln ('Closing.');
Close;
end;end.
{
$Log: tested.pp,v $
Revision 1.3 2005/02/14 17:13:12 peter
* truncate log
} |
