[fpc-pascal] Bufdataset TCustomBufDataset.InternalOpen; swallowing filter construction

Michael Van Canneyt michael at freepascal.org
Mon Feb 4 11:41:05 CET 2013

On Mon, 4 Feb 2013, Reinier Olislagers wrote:

> Hi list,
> In sqldb bufdataset.pas, going through the code looking through the
> comments, this code caught my eye (around line 1164):
> procedure TCustomBufDataset.InternalOpen;
> ...
>  // parse filter expression
>  try
>    ParseFilter(Filter);
>  except
>    // oops, a problem with parsing, clear filter for now
>    on E: Exception do Filter := EmptyStr;
>  end;
> seems to swallow problems with parsing filter expressions.
> Shouldn't the exception bubble up though so the user is notified? If the
> filter is not correct, e.g. showing all data instead of what the user
> wanted seems a bit weird..

I think it should indeed bubble up.


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