django referral app and allauth

with current tech of referral being a strategy to boost businesses both offline and online I've chosen to write some codes on how to create referral links with Django-allauth and django sessions.
inspiration of the referral was gotten from a youtube video of pyplane .

import uuid

def generate_ref_code():
    code =str(uuid.uuid4()).replace('-', '')[:12]
    return code

models

from django.db import models

# Create your models here.
from core.models import TheMain
from referral.utils import generate_ref_code
from user.models import User


class Referral(models.Model):
    user = models.OneToOneField(User, on_delete=models.CASCADE)
    referral_balance = models.IntegerField(default=0)
    code = models.CharField(max_length=12, blank=True)
    referred_by = models.ForeignKey(User, on_delete=models.CASCADE, blank=True, null=True, related_name="ref_by")
    updated = models.DateTimeField(auto_now=True)
    created = models.DateTimeField(auto_now_add=True)
    approve= models.BooleanField(default=False)

    def __str__(self):
        return f'{self.user.username}- {self.code}'

    def get_reffered(self):
        qs = Referral.objects.all()
        my_refs = []
        for reffered in qs:
            if reffered.referred_by == self.user:
                my_refs.append(reffered)
        return my_refs



    def save(self, *args, **kwargs):
        if self.code == '':
            code = generate_ref_code()
            self.code = code
        super().save(*args, **kwargs)

the user referral id is automatically generated with UUID

the extended all-auth form view I guess I don't need to tell you about djangoallauth.

class mySignUp(SignupForm):
    first_name = forms.CharField(max_length=50, widget=forms.TextInput(attrs={
        'placeholder': 'First name'
    }))
    last_name = forms.CharField(max_length=50, widget=forms.TextInput(attrs={
        'placeholder': 'Last name'
    }))
    country = CountryField(blank_label='select country').formfield(widget=CountrySelectWidget(attrs={
        'class': 'custom-select d-block w-100'
    }))
    phone = forms.IntegerField(required=True, widget=forms.TextInput(attrs={
        'placeholder': 'Phone number'
    }))

    # def save(self,  request):
    #     user = super(mySignUp, self).save(request)
    #
    #     user.first_name = self.cleaned_data['first_name']
    #     user.last_name = self.cleaned_data['last_name']
    #     user.country = self.cleaned_data['country']
    #     user.phone = self.cleaned_data['phone']
    #     user.save()
    #     print(f'this is the user {user}')
    #     return user

    def save(self, request):
        referral_id = request.session.get('ref_profile')
        print(f'this is login{referral_id}')
        if referral_id is not None:
            recommended_by_profile = Referral.objects.get(id=referral_id)
            user = super(mySignUp, self).save(request)

            user.first_name = self.cleaned_data['first_name']
            user.last_name = self.cleaned_data['last_name']
            user.country = self.cleaned_data['country']
            user.phone = self.cleaned_data['phone']
            user.save()

            registered_user = User.objects.get(id=user.id)
            registered_profile = Referral.objects.get(user=registered_user)
            registered_profile.referred_by = recommended_by_profile.user
            registered_profile.save()
            print(f'this is the user {user}')
            print(f'this is the the {user.id}')
            # here after saving the registration I pass the ref id param to the user profile then I save the user 
            profile

            return user
        else:

            user = super(mySignUp, self).save(request)

            user.first_name = self.cleaned_data['first_name']
            user.last_name = self.cleaned_data['last_name']
            user.country = self.cleaned_data['country']
            user.phone = self.cleaned_data['phone']
            user.save()
            print(f'this is the user {user}')
            return user

def referred(request, *args, **kwargs):
    code = str(kwargs.get('ref_code'))
    print(f'coded code {code}')
    try:
        referral = Referral.objects.get(code=code)
        request.session['ref_profile'] = referral.id
        print('id', referral.id)
    except:
        pass
    print(request.session.get_expiry_age())
    return render(request, 'homepage/index.html', {})



# now in my views I fetch the referred users






from allauth.account.views import SignupView
from django.contrib.auth.decorators import login_required
from django.http import JsonResponse
from django.shortcuts import render, get_object_or_404

# Create your views here.
from core.models import TheMain, Invest, TheRef
from referral.models import Referral


@login_required
def referral_page(request, *args, **kwargs):
    global invest_user, invest_name, invest_amount, invest_timer, main, that, ma, new_invest, new_main
    referral = get_object_or_404(Referral, user=request.user)
    my_ref = referral.get_reffered()

contact me if you need more explanation to this

reference
https://www.youtube.com/watch?v=QZfflGvRQrc
by pyplane