On Thu, 1 Dec 2005, Joost van der Sluis wrote:
No, it's a FPC problem.
Delphi actually does a dirty trick with the 'NativeFormat' parameter of
GetFieldData. If NativeFormat is false, it does a recursive call of
itself with a temporary buffer, and then converts the data with
an auxiliary method.
This method takes care of the conversion TTimeStamp -> TDateTime
because TDateTimeField sets calls GetFieldData with NativeFormat
set to False.
So we had to fix this in TDataset.
I've done it, it's committed, if someone could please give it a test,
I would be grateful.
This means that a TDataset Descendent always should use the OLD method,
or must override the DataConvert method so it does NOT do the conversion
again in the case of datetime fields.
So we introduce an ugly hack, which no-one understands, only to be
compatible with Delphi? And it's extra overhead.
But all TDataset components which I saw use the old method,
so the conversion is needed. We rely on a lot of converted
components.
Then - why should we use TDateTime at all ?!?
I'll take a look at your changes. You are aware of that you probably
broke all non-ZEOS TDataset descendents?
Nono. I fixed sqldb at the same time, of course.
Michael.
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