Update data migration

server/portfolio/migrations/0006_auto_20210810_1348.py

@@ -9,7 +9,7 @@ def set_default_school_class(apps, schema_editor):
     bulk_projects = []
     for project in projects:
         owner = project.student
-        selected_class = owner.selected_class
+        selected_class = owner._get_selected_class()
         if selected_class is not None:
             project.school_class = selected_class
             bulk_projects.append(project)

server/users/models.py

@@ -1,20 +1,20 @@
 import random
 import re
-from datetime import datetime, timedelta, date
 import string
+from datetime import date, datetime, timedelta
+from typing import Union
 
 from django.contrib.auth import get_user_model
 from django.contrib.auth.models import AbstractUser, Permission
 from django.core.exceptions import ObjectDoesNotExist
 from django.db import models
-from django.utils.functional import cached_property
-from django.utils.timezone import make_aware, is_aware
-from django.utils.translation import ugettext_lazy as _
 from django.utils import timezone
-from typing import Union
+from django.utils.functional import cached_property
+from django.utils.timezone import is_aware, make_aware
+from django.utils.translation import ugettext_lazy as _
 
 from users.licenses import MYSKILLBOX_LICENSES
-from users.managers import RoleManager, UserRoleManager, UserManager, LicenseManager
+from users.managers import LicenseManager, RoleManager, UserManager, UserRoleManager
 
 DEFAULT_SCHOOL_ID = 1
 
@@ -79,6 +79,9 @@ class User(AbstractUser):
 
     @cached_property
     def selected_class(self) -> Union['SchoolClass', None]:
+        return self._get_selected_class()
+
+    def _get_selected_class(self) -> Union['SchoolClass', None]:
         try:
             settings = UserSetting.objects.get(user=self)
             return settings.selected_class