On Wednesday 26 November 2008 09:21:37 am Ed Leafe wrote:
> On Nov 26, 2008, at 10:58 AM, johnf wrote:
> > I wonder if someone could take a look at what is happening at the
> > grandchild
> > level.  It's beyond my current understanding.
>
>       If you can send me some code I can test, I would be glad to look into
> it. I haven't seen anything that would cause different behavior for
> child or grandchild or great-grandchild objects.
>
> > For example the next bit of code from dCursorMixin does not make
> > sense to me
> > because in my testing the try never works:
> >
> > if tableName is None:
> > # Use the default
> >     tableName = self.Table
> > key = "%s:::%s" % (tableName, self.CurrentSQL)
> > try:
> >    return self._fieldStructure[key]
> > except KeyError:
> >    flds = self.BackendObject.getFields(tableName, self.AuxCursor)
> >    self._fieldStructure[key] = flds
> >    return flds
> >
> > And the method will always retrieve flds from the backend.
>
>       This is the internal cache used to avoid calling getFields() for
> identical queries. Perhaps this is the cause of your problem above: if
> you are directly manipulating the SQL's where clause instead of
> setting parameters, each 'CurrentSQL' value will be different, causing
> the try (the cache key search) to fail.
>
>
> -- Ed Leafe

Thanks Ed.  I'll check into the CurrentSQL issue.  If I'm not changing it then 
I'll create a small test case.  



-- 
John Fabiani


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