FlipperPA FlipperPA - 2 months ago 25
Python Question

Django allauth custom signup form error: 'Institution' object is not iterable

I'm probably missing something obvious here, but I'm getting the following error:

'Institution' object is not iterable

It doesn't like this line in the code:

user.institution = institution

Here's the full SignupForm class for Django allauth:

class SignupForm(forms.Form):
first_name = forms.CharField(
label="Your First Name",
last_name = forms.CharField(
label="Your Last Name",
institution = forms.ModelChoiceField(
label="Your Institution",
empty_label="Other Institution Not Listed",

def signup(self, request, user):
from pprint import pprint
user.first_name = self.cleaned_data['first_name']
user.last_name = self.cleaned_data['last_name']
user.institution = self.cleaned_data['institution']


I've checked
and it appears to be passing the institution correctly:

{'email': 'blah@blah',
'first_name': 'John',
'institution': <Institution: Blah College>,
'last_name': 'Doe'}

I'm using a custom user model and institution is a many-to-many:

institution = models.ManyToManyField(Institution, db_index=True)

Any ideas? What am I doing wrong here?


If its a ManyToMany relationship then you need to use the add method to associate an institution with the user:


You can read more about operations on Many-to-many relationships here.