On Tue, 2007-05-22 at 02:14 +0000, John M wrote:
> Malcolm,
>
> Here is the traceback from line 41:
> c:\python24\lib\site-packages\django\newforms\models.py in
> save_instance
>
> 34. opts = instance.__class__._meta
> 35. if form.errors:
> 36. raise ValueError("The %s could not be changed because the data
> didn't validate." % opts.object_name)
> 37. clean_data = form.clean_data
> 38. for f in opts.fields:
> 39. if not f.editable or isinstance(f, models.AutoField):
> 40. continue
>
> 41. setattr(instance, f.name, clean_data[f.name]) ...
>
> 42. if commit:
> 43. instance.save()
> 44. for f in opts.many_to_many:
> 45. setattr(instance, f.attname, clean_data[f.name])
> 46. # GOTCHA: If many-to-many data is given and commit=False, the
> many-to
>
> I'm not sure what version I'll have to check.
OK, that code's broken.
Looks like you've just rediscovered byg #3635. This was fixed after 0.96
came out, but you could grab the change mentioned there and apply it to
your local copy if you wanted to.
> The reason for using the HoldingForm is to eliminate the display of
> the FK (another long post of mine), not so much adding fields, but to
> limit them.
I'm not sure if that's really going to work, but it might. I can't see
how it's excluding fields in form_for_model, since that iterates through
all the fields anyway. But whatever floats your boat, I guess. If it
works, so be it.
In 0.96, you could exclude fields by using formfield_callback and
passing it a function that returned None for fields you didn't want to
include. So if your "form" trick doesn't work, you might want to
investigate that. We've (by "we", I mean "Russell") fixed this in a
nicer way on trunk so that you can pass in a list of fields to include
in the form.
Regards,
Malcolm
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