On May 6, 10:47 am, NicoEchániz <lwcy...@gmail.com> wrote: > On May 6, 8:57 am, Daniel Roseman <roseman.dan...@googlemail.com> > wrote: > > On May 6, 5:26 am, NicoEchániz <lwcy...@gmail.com> wrote: > > > Hello, > > > > I have a model which has a ForeignKey to itself. I'm doing this to > > > represent a hierarchy which I then need to display in the > > > corresponding select field of my form. > >[....] > > > You can find the corresponding code snippet > > > here:http://dpaste.com/hold/41342/ > > > Your code in lines 22 onwards is being executed when the form class is > > defined. So the choices for robro_superior are being set at that > > point, and not updated. > > > To fix this, put this code into an __init__() method. This is called > > when the form is *instantiated* - so each time, it will get the list > > fresh from the database. > > > class RubroForm(ModelForm): > > rubro_superior = ModelChoiceField(queryset=Rubro.objects.all(), > > required=False) > > > def __init__(self, *args, **kwargs) > > super(RubroForm, self).__init__(*args, **kwargs) > > r = Rubro.objects.all() > > choices = [('', '- - - -')] + [(rubro.id, rubro.jerarquia) for > > rubro in r] > > choices.sort(key=itemgetter(1)) > > rubro_superior.choices = choices > > > -- > > DR. > > Daniel, > > Thanks for your reply. > I had already tried this, but there's another problem whith this > solution. The class attribute rubro_superior seems inaccesible for > some reason. > > I get the error: > global name 'rubro_superior' is not defined > > I've tried changing the offending line: > rubro_superior.choices = choices > > for: > RubroForm.rubro_superior.choices = choices > and for: > self.__class__.rubro_superior.choices = choices > > to no avail... > > so... the description of the problem seems correct to me, but I can't > find the way to solve it. > > Thanks, > > NicoEchániz
solved it after reading: http://stackoverflow.com/questions/738301/how-to-modify-choices-of-modelmultiplechoicefield I just needed to access the attribute like this: self.fields['rubro_superior'].choices = choices that did it. Thanks for the help. --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
