gistfile1.py

class Post (models.Model):
  content = Txtfld ...
  
class  Visitor(User):
  post = models.ForeignKey(Post)
 
 
# views when each page loads 
 
 
def post(request,id):
  p = Post.objects.get(id=id)
  visitor =request.user
  visitor.post = p
  visitor.save()
  
 
after login
 
redirect using HttpResponseRedirect(reverse('post'), kwargs={'id':request.user.post.id}))