Fix FB auth with present in db email

apps/auth/views.py

@@ -151,6 +151,9 @@ class FacebookLoginOrRegistration(View):
                                      "errors": {"email": 'is field required'}
                                      })
             else:
+                try:
+                    user = User.objects.get(email=email)
+                except User.DoesNotExist:
                     first_name = data.get('first_name', '')
                     last_name = data.get('last_name', '')
 
@@ -162,6 +165,7 @@ class FacebookLoginOrRegistration(View):
                         fname = str(fb_id) + '.jpg'
                         user.photo.save(fname, photo, save=True)
                     user.save()
+
                 login(requests, user=user)
                 return JsonResponse({"success": True})
         else: