coderanger avatar coderanger committed 20a19ad

Add a compatibility hook to deal with creating django.contrib.auth permissions on migrated models.

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 from django.dispatch import Signal
+from django.conf import settings
 # Sent at the start of the migration of an app
 pre_migrate = Signal(providing_args=["app"])
 # Sent after each run of a particular migration in a direction
 ran_migration = Signal(providing_args=["app","migration","method"])
+# Compatibility code for django.contrib.auth
+if 'django.contrib.auth' in settings.INSTALLED_APPS:
+    def create_permissions_compat(app, **kwargs):
+        from django.db.models import get_app
+        from import create_permissions
+        create_permissions(get_app(app), (), 0)
+    post_migrate.connect(create_permissions_compat)
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