Remove the project model dependency from account models

accounts/apps.py

@@ -1,9 +1,23 @@
 from django.apps import AppConfig
+from django.contrib.auth import signals
 from django.utils.text import capfirst
 from django.utils.translation import gettext_lazy as _
 
 
+def add_user_to_projects(sender, user, **kwargs):
+    project_model = user.projects.model
+    domain = user.email.rsplit("@")[-1]
+    for project in project_model.objects.filter(
+        _email_domains__icontains=domain
+    ).exclude(users=user):
+        if domain in project.email_domains:
+            project.users.add(user)
+
+
 class AccountsConfig(AppConfig):
     name = "accounts"
     default_auto_field = "django.db.models.AutoField"
     verbose_name = capfirst(_("Authentication"))
+
+    def ready(self):
+        signals.user_logged_in.connect(add_user_to_projects)

accounts/models.py

@@ -1,12 +1,9 @@
 from authlib.base_user import BaseUser
 from authlib.roles import RoleField
-from django.contrib.auth import signals
 from django.db import models
 from django.utils.crypto import get_random_string
 from django.utils.translation import gettext_lazy as _
 
-from projects.models import Project
-
 
 class User(BaseUser):
     full_name = models.CharField(_("full name"), max_length=200)
@@ -36,15 +33,3 @@ def cycle_token(self):
         self.save()
 
     cycle_token.alters_data = True
-
-
-def add_user_to_projects(sender, user, **kwargs):
-    domain = user.email.rsplit("@")[-1]
-    for project in Project.objects.filter(_email_domains__icontains=domain).exclude(
-        users=user
-    ):
-        if domain in project.email_domains:
-            project.users.add(user)
-
-
-signals.user_logged_in.connect(add_user_to_projects)