Fix token auto create signal

apps/user/models.py

@@ -1,4 +1,6 @@
 from django.db import models
+from django.db.models.signals import post_save
+from django.dispatch import receiver
 from django.contrib.auth.models import AbstractUser, UserManager
 from django.contrib.postgres import fields as pgfields
 from django.utils.translation import gettext_lazy as _
@@ -59,16 +61,17 @@ class User(AbstractUser):
         user_data = dumps(user_data, ensure_ascii=False)
         return user_data
 
-    @receiver(post_save, sender=User)
-    def create_auth_token(sender, instance=None, created=False, **kwargs):
-        if (
-            (instance.is_active or instance.fb_id) and
-            instance.role in [User.AUTHOR_ROLE, User.ADMIN_ROLE] and not
-            hasattr(instance, 'auth_token')
-        ):
-            Token.objects.create(user=instance)
-        elif (
-            not (instance.is_active or instance.fb_id) or
-            instance.role not in [User.AUTHOR_ROLE, User.ADMIN_ROLE]
-        ) and hasattr(instance, 'auth_token'):
-            instance.auth_token.delete()
+
+@receiver(post_save, sender=User)
+def create_auth_token(sender, instance=None, created=False, **kwargs):
+    if (
+        (instance.is_active or instance.fb_id) and
+        instance.role in [User.AUTHOR_ROLE, User.ADMIN_ROLE] and not
+        hasattr(instance, 'auth_token')
+    ):
+        Token.objects.create(user=instance)
+    elif (
+        not (instance.is_active or instance.fb_id) or
+        instance.role not in [User.AUTHOR_ROLE, User.ADMIN_ROLE]
+    ) and hasattr(instance, 'auth_token'):
+        instance.auth_token.delete()