Django 1.3 CreateView/ModelForm and dynamic filtering of fields

[Paul Walsh]

I am trying to filter a field on a ModelForm. I am subclassing the generic CreateView for my view. 

I found many references to my problem on the web, but the solutions do not seem to work (for me at least) with Django 1.3's class-based views.

Specifically, my users need to add Subscribers, and each Subscriber has a m2m field that assigns him/her to a SubscriberList. When the form to create a subscriber loads for a given user, I need to options in subscriber_list to be filtered for that user's lists only. 

Here are my models:

#models.py

class Subscriber(models.Model):

user = models.ForeignKey(User)

subscriber_list = models.ManyToManyField('SubscriberList')

....

class SubscriberList(models.Model):

user = models.ForeignKey(User)

name = models.CharField(max_length=70)

....

Here is my view:

#views.py

class SubscriberCreateView(AuthCreateView):

model = Subscriber

template_name = "forms/app.html"

form_class = SubscriberForm

success_url = "/app/subscribers/"

def form_valid(self, form):

self.object = form.save(commit=False)

self.object.user = self.request.user

return super(SubscriberCreateView, self).form_valid(form) 

Here is my original form for adding a Subscriber, with no filter:

#forms.py

class SubscriberForm(ModelForm):

class Meta:

model = Subscriber

exclude = ('user', 'facebook_id', 'twitter_id')

Here is my modified form, attempting to filter, but doesn't work:

#forms.py

class SubscriberForm(ModelForm):

class Meta:

model = Subscriber

exclude = ('user', 'facebook_id', 'twitter_id')

def __init__(self, user, **kwargs):

super(SubscriberForm, self).__init__(**kwargs)

self.fields['subscriber_list'].queryset = SubscriberList.objects.filter(user=user)

If I change this modified form as so:

def __init__(self, user=None, **kwargs)

It works - It brings me NO subscriber lists. But any way I try to pass the request user, for eg., def __init__(self, user=request.user, **kwargs), I invariably get a a name "request" or name "self" not defined error.

So, how can I modify my code to filter subscriber_list by the request.user, and still use Django 1.3's CreateView.

[Paul Walsh]

can anyone help with this?

thx.

[Paul Walsh]

hmm. Still stuck on this. I have tried a range of solutions, but none work for me with 1.3 class-based views.

Can anyone help?

thx,

paul.