solve more use cases for related managers and settings

test-data/typecheck/related_fields.test

@@ -119,7 +119,7 @@ class App(models.Model):
     def method(self) -> None:
         reveal_type(self.views)  # E: Revealed type is 'django.db.models.query.QuerySet[main.View]'
 
-[case models_related_managers_work_with_direct_model_inheritance_and_with_inheritance_from_other_model]
+[CASE models_related_managers_work_with_direct_model_inheritance_and_with_inheritance_from_other_model]
 from django.db.models import Model
 from django.db import models
 
@@ -134,4 +134,62 @@ class View2(View):
 
 reveal_type(App().views)  # E: Revealed type is 'django.db.models.query.QuerySet[main.View]'
 reveal_type(App().views2)  # E: Revealed type is 'django.db.models.query.QuerySet[main.View2]'
-[out]
+[out]
+
+[CASE models_imported_inside_init_file]
+from django.db import models
+from myapp.models import App
+class View(models.Model):
+    app = models.ForeignKey(to='myapp.App', related_name='views', on_delete=models.CASCADE)
+reveal_type(View().app.views)  # E: Revealed type is 'django.db.models.query.QuerySet[main.View]'
+
+[file myapp/__init__.py]
+[file myapp/models/__init__.py]
+from .app import App
+[file myapp/models/app.py]
+from django.db import models
+class App(models.Model):
+    pass
+
+[CASE models_imported_inside_init_file_one_to_one_field]
+from django.db import models
+from myapp.models import User
+class Profile(models.Model):
+    user = models.OneToOneField(to='myapp.User', related_name='profile', on_delete=models.CASCADE)
+reveal_type(Profile().user.profile)  # E: Revealed type is 'main.Profile'
+
+[file myapp/__init__.py]
+[file myapp/models/__init__.py]
+from .user import User
+[file myapp/models/user.py]
+from django.db import models
+class User(models.Model):
+    pass
+
+[CASE models_triple_circular_reference]
+from myapp.models import App
+reveal_type(App().owner.profile)  # E: Revealed type is 'myapp.models.profile.Profile'
+
+[file myapp/__init__.py]
+[file myapp/models/__init__.py]
+from .user import User
+from .profile import Profile
+from .app import App
+
+[file myapp/models/user.py]
+from django.db import models
+class User(models.Model):
+    pass
+
+[file myapp/models/profile.py]
+from django.db import models
+from myapp.models import User
+class Profile(models.Model):
+    user = models.OneToOneField(to='myapp.User', related_name='profile', on_delete=models.CASCADE)
+
+[file myapp/models/app.py]
+from django.db import models
+class App(models.Model):
+    owner = models.ForeignKey(to='myapp.User', on_delete=models.CASCADE, related_name='apps')
+
+

test-data/typecheck/settings.test

@@ -36,17 +36,47 @@ ROOT_DIR = Path(__file__)
 from django.conf import settings
 class Class:
     pass
-reveal_type(settings.MYSETTING)  # E: Revealed type is 'builtins.int'
 reveal_type(settings.REGISTRY)  # E: Revealed type is 'Union[main.Class, None]'
+reveal_type(settings.LIST)  # E: Revealed type is 'Any'
+reveal_type(settings.BASE_LIST)  # E: Revealed type is 'Any'
+[out]
+main:5: error: "LazySettings" has no attribute "LIST"
+main:6: error: "LazySettings" has no attribute "BASE_LIST"
+mysettings:4: error: Need type annotation for 'LIST'
+base:6: error: Need type annotation for 'BASE_LIST'
 
 [env DJANGO_SETTINGS_MODULE=mysettings]
 [file mysettings.py]
-from typing import TYPE_CHECKING
 from typing import Optional
+from base import *
+
+LIST = ['1', '2']
+
+[file base.py]
+from typing import TYPE_CHECKING, Optional
+if TYPE_CHECKING:
+    from main import Class
+
+REGISTRY: Optional['Class'] = None
+BASE_LIST = ['3', '4']
+
+[CASE test_circular_dependency_in_settings_works_if_settings_have_annotations]
+from django.conf import settings
+class Class:
+    pass
+reveal_type(settings.MYSETTING)  # E: Revealed type is 'builtins.int'
+reveal_type(settings.REGISTRY)  # E: Revealed type is 'Union[main.Class, None]'
+reveal_type(settings.LIST)  # E: Revealed type is 'builtins.list[builtins.str]'
+[out]
+
+[env DJANGO_SETTINGS_MODULE=mysettings]
+[file mysettings.py]
+from typing import TYPE_CHECKING, Optional, List
 
 if TYPE_CHECKING:
     from main import Class
 
 MYSETTING = 1122
 REGISTRY: Optional['Class'] = None
+LIST: List[str] = ['1', '2']