CreateOrUpdateView for Django Models -

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in models have foreignkey relationship this:

class question(models.model):         question = models.textfield(null=false)  class answer(models.model):                                                         question =    models.foreignkey(question, related_name='answer')         user = models.foreignkey(user)     class meta:         unique_together = (("question", "user"),)

the corresponding url submit answer contains id of question, this:

url(r'^a/(?p<pk>\d+)/$', answerquestion.as_view(), name='answer-question'),

with user coming self.request.user, trying createorupdateview, allow convenient navigation user , url scheme.

until tried with:

class answerquestion(loginrequiredmixin, createview):

and add initial value, isn't clean because of pk. updateview run problems because have set default values form.

has done this? i'd rather avoid having create , update view same answer.

the updateview , createview not different, difference updateview sets self.object self.get_object() , createview sets none.

the easiest way subclass updateview , override get_object():

answerquestionview(loginrequiredmixin, updateview):     def get_object(queryset=none):         if queryset none:             queryset = self.get_queryset()          # easy way right question url parameters:         question = super(answerquestionview, self).get_object(question.objects.all())          try:             obj = queryset.get(user=self.request.user, question=question)         except objectdoesnotexist:             obj = none         return obj

returns right answer if exists, none if not. of course add attributes need class, model, form_class etc.


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