newsforms.widget.Select does not accept long int as choices

[Tim <timsloan@…>]

While using newforms form_for_instance or form_for_model, I was trying to override the form:

MyModelAddForm = form_for_model(MyModel)
MyModelAddForm.base_fields['field_one'].widget = forms.Select(choices=[(testa.id, testa.name) for testa in Test.objects.all()])
MyModelAddForm.base_fields['field_two'].widget = forms.CheckboxSelectMultiple(choices=[(testb.id, testb.name) for testb in Test.objects.all()])

However, I was getting the error that there are "too many values to unpack". After a little debugging I found that MySQL is returning "1L", "2L", etc. as the id/pk. This is recognized in the tests ​http://code.djangoproject.com/browser/django/trunk/tests/modeltests/field_defaults/models.py as MySQL behavior. However, for new forms the Select field seems to be looking for an Integer only.

By adding int() around the returning id/pk field, the problem was fixed.

MyModelAddForm = form_for_model(MyModel)
MyModelAddForm.base_fields['field_one'].widget = forms.Select(choices=[(int(testa.id), testa.name) for testa in Test.objects.all()])
MyModelAddForm.base_fields['field_two'].widget = forms.CheckboxSelectMultiple(choices=[(int(testb.id), testb.name) for testb in Test.objects.all()])

I believe that Long Integers from MySQL shouldn't have the trailing L.

[Philippe Raoult]

Those are HTML widgets and as such only deal with strings. You really should be adding str() around testa/testb.id.