Hi, well I have a solution, but it's not ideal. It involves extending the BaseFormSet class, and passing an extra parameter into the subclass's __init__ method, and saving this value as an attribute to self. The subclass also had to override the _construct_form method, copying all of the code of the BaseFormSet's _construct_form method (which is not good from a maintenance point of view, and definitely violates the Do not Repeat Yourself (DRY) principle), and when it instantiates the form, it passes in this extra parameter for the form to correctly initialize the queryset for the ModelChoiceField.
How could this be improved? I think a better solution would involve the Django development team considering extending the BaseFormSet class to handle this situation. It could include an optional parameter (e.g. 'formConfig') in the BaseFormSet __init__ method, which would be passed as a parameter to each form's instantiation. The Django forms.BaseForm.__init__ would have to accept (though would ignore) this argument. Regards, Steve On May 14, 12:45 pm, SteveB <smbroo...@gmail.com> wrote: > Hi, > I have a form which has a ModelChoiceField, whose queryset has to be > set dynamically (when the form is instantiated). > I have read an earlier posting on how to do > this:http://groups.google.com/group/django-users/browse_thread/thread/847e... > > My problem, is that I don't directly instantiate this form. The form > is used in a formset, > so the actual instantiation is done within Django code. > The above mentioned posting specifies that some extra parameter be > added to the > form's __init__ function argument list, and that it can be used to > determine the queryset for the ModelChoiceField, but how can I do this > with a formset? > > Thanks, > Steve --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Django users" group. To post to this group, send email to django-users@googlegroups.com To unsubscribe from this group, send email to django-users+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/django-users?hl=en -~----------~----~----~----~------~----~------~--~---
