from django.contrib.auth.forms import User


class EmailBackend(object):

	def authenticate(self, username=None, password=None, **kwargs):
		try:
			user = User.objects.get(email=username)
		except User.MultipleObjectsReturned:
			return None
		except User.DoesNotExist:
			return None

		if getattr(user, 'is_active') and user.check_password(password):
			return user
		return None
	def get_user(self, user_id):
		try:
			User.objects.get(pk=user_id)
		except User.DoesNotExist:
			return None
views:
def post(self, request):
		form = self.form_class(request.POST)
		if form.is_valid():
			email = form.cleaned_data['email']
			password = form.cleaned_data['password']
			username = str(uuid.uuid4())
			new_user = User.objects.create(username=username, email=email,  first_name = form.cleaned_data['first_name'])
			new_user.set_password(password)
			new_user.save()


			needed_user = User.objects.get(username = username)

			needed_user = authenticate(username=email, password=password)

			if needed_user is not None:
				if needed_user.is_active:
					login(request, needed_user)
					return redirect('home')
		else:
			print(form.errors)
		return render(request, self.template_name, {'form': form })