CODEWITHSUNDEEP
djangodjango-forms
jma
jma

Reputation: 3779

ForeignKey and form submission

I have a model that is many-to-one with users. But when I submit a form based on that model, I am not correctly providing the user.

class Thing(models.Model):
    """Things."""
    user = models.ForeignKey(User)
    salt = models.IntegerField()
    # [...]

class GenerateThingForm(ModelForm):
    """A form for registering a new Thing."""
    class Meta:
        model = Thing
        fields = (...)    # There are some, but it would distract here

The view says this:

@login_required()
def register_thing(request):
    """Register Thing."""
    if request.method == 'POST': # If the form has been submitted...
        form = GenerateThingForm(request.POST)
        if form.is_valid():
            form.salt = random.getrandbits(32)
            # Apparently I need to specify form.user.
            # Same result if just request.user
            form.user = User.objects.get(request.user)
            form.save()   # Oh, no!  'user_id' is null!

Thanks for any tips.

Upvotes: 0

Views: 66

Answers (1)

Daniel Roseman
Daniel Roseman

Reputation: 599600

Don't set the user or salt on the form instance, it has no idea what to do with it. Set it on the Thing that is generated from form.save.

thing = form.save(commit=False)
thing.salt = whatever
thing.user = myuser
thing.save()

Upvotes: 1

Related Questions