id	summary	reporter	owner	description	type	status	component	version	severity	resolution	keywords	cc	stage	has_patch	needs_docs	needs_tests	needs_better_patch	easy	ui_ux
4787	Updating queryset on a ModelChoiceField, ModelMultipleChoiceField	fero <luca.ferroni@…>	eads	"{{{
The problem is that updating the queryset for a forms.ModelChoiceField in a form doesn't change widget choices because they are set at ModelChoiceField __init__ time.
This code works (in __init__ of my form):
MyForm.base_fields['activity'].queryset = Activity.objects.filter(user__id=2)
MyForm.base_fields['activity'].widget.choices = MyForm.base_fields['activity'].choices

So I propose the following patch in newforms/models.py
(I've never used ""property"" before)

class ModelChoiceField(ChoiceField):

    .....

    def _set_queryset(self, value):
        self._queryset = value
        self.widget.choices = self.choices
    def _get_queryset(self):
        return self._queryset

    queryset = property(_get_queryset, _set_queryset)
}}}"		closed	Forms	dev		fixed	ModelChoiceField ModelMultipleChoiceField Queryset	michal@…	Accepted	1	0	1	0	0	0