Create a social authentication functionality with google django - django

Question

Hello I am a newbie and have a task to do,I have tried simple social authentication that is working but below is bit complicated:
Create a social authentication functionality with google and add user in a
database. After adding user in a database, customer should also be created
using django signals.
Note:- Customer is one to one related with user?
My models.py :
class Buddy(models.Model):
user_name=models.CharField(max_length=200,blank=True,null=True)
def __str__(self):
return str(self.user_name)
class Customer(models.Model):
customer_name=models.OneToOneField(Buddy,
on_delete = models.CASCADE,
blank=True,null=True)
def __str__(self):
return str(self.customer_name)
My settings.py includes the following lines:
SOCIAL_AUTH_GOOGLE_OAUTH2_KEY = '2377[...].apps.googleusercontent.com'
SOCIAL_AUTH_GOOGLE_OAUTH2_SECRET = '[...]'
SOCIAL_AUTH_GOOGLE_OAUTH2_SCOPE = ['email']
INSTALLED_APPS = [ ... # oauth
'oauth2_provider',
'social_django',
'rest_framework_social_oauth2' ]
AUTHENTICATION_BACKENDS = ( # Google OAuth2
'social_core.backends.google.GoogleOAuth2',
# django-rest-framework-social-oauth2
'rest_framework_social_oauth2.backends.DjangoOAuth2', # Django
'django.contrib.auth.backends.ModelBackend', )

Answer 1

You have to use Django's post_save signal.
In your models.py have:
class Buddy(models.Model):
user_name=models.CharField(max_length=200, blank=True, null=True)
def __str__(self):
return str(self.user_name)
class Customer(models.Model):
# This translates into buddy_id when you migrate
buddy=models.OneToOneField(Buddy,on_delete = models.CASCADE,
blank=True, null=True)
customer_name = models.CharField(max_length=200, blank=True, null=True)
def __str__(self):
return str(self.customer_name)
In your views.py make sure you have
from django.shortcuts import render
from django.db.models.signals import post_save
from .models import Buddy
from .callbacks import save_customer
# You'll customize this view to read any parameters and provide user_name
def custom_view(request):
Buddy.objects.create(user_name="SomeUsername")
# Any of your other logic comes here, specify in the dict
return render(request, 'yourpage.html', {})
# This should be at the bottom of your views.py:
post_save.connect(save_customer, sender=Buddy)
Then create a new file in the same location called callbacks.py and there include:
from .models import Buddy
from django.db.models.signals import post_save
from django.dispatch import receiver
#receiver(post_save, sender=Buddy)
def save_customer(sender, instance, **kwargs):
# Customize your OneOnOne model on a meaningful way so it will be useful
customer = Customer.objects.create(customer_name=instance.user_name)
instance.customer = customer
instance.customer.save()
Read more about Django signals here.