[Python] Django ModelForm ensuring FK integrity without using it in the form

I have a User Profile model with a Model Form:

class Profile(models.Model):
# Managed fields
user = models.OneToOneField(User, related_name="profile", on_delete=models.CASCADE)
memberId = models.CharField(unique=True, max_length=15, null=False, blank=False, default=GenerateFA)
bio = models.TextField(null=True, blank=True)
avatar = models.ImageField(upload_to="static/MCARS/img/members", null=True, blank=True)
birthday = models.DateField(null=True, blank=True)
gender = models.CharField(max_length=10, choices=constants.GENDER_CHOICES, null=True, blank=True)
invited = models.BooleanField(default=False)
registered = models.BooleanField(default=False)
height = models.PositiveSmallIntegerField(null=True, blank=True)
phone = models.CharField(max_length=32, null=True, blank=True)
address = models.CharField(max_length=255, null=True, blank=True)
number = models.CharField(max_length=32, null=True, blank=True)
city = models.CharField(max_length=50, null=True, blank=True)
state = models.CharField(max_length=50, null=True, blank=True)
zip = models.CharField(max_length=30, null=True, blank=True)
facebook = models.URLField(null=True, blank=True)
Twitter = models.URLField(null=True, blank=True)
LinkedIn = models.URLField(null=True, blank=True)
Instagram = models.URLField(null=True, blank=True)
Snapchat = models.URLField(null=True, blank=True)
website = models.URLField(null=True, blank=True)

class UserProfileForm(ModelForm):
class Meta:
model = Profile
exclude = ('user','memberId','invited', 'registered')



I don't want user in the form, but remember who the user is, when saving back to the model. How do I ensure that? Without it, the compiler throws a FK integrity error. This is what I have the view:

@login_required()
def Profile(request, memberid=None):
if memberid:
user = User.objects.select_related('profile').get(id=memberid)
else:
user = User.objects.select_related('profile').get(id=request.user.id)

errors = None
if request.method == 'POST':
print('found me')
data = request.POST
form = UserProfileForm(data)
form.user = user
if form.is_valid():
form.save()
else:
print('form is invalid')
errors = form.errors

context = {
'pagetitle': 'MCARS - Service Record',
'user': user,
'rank': Rank.objects.get(user=user.id),
'assignments': Assignment.objects.filter(user=user.id),
'form': UserProfileForm(),
}
if errors:
context['errors'] = errors
return render(request, template_name='MCARS/pages/ServiceRecord.html', context=context)


Thanks!

Continue reading...