Commit 6758a9c0 authored by Andrew Godwin's avatar Andrew Godwin
Browse files

Fixed #21872: Not detecting dependencies from M2M fields

parent dfa28981

django/db/migrations/autodetector.py

+6 −1
Original line number Diff line number Diff line
@@ -72,7 +72,12 @@ class MigrationAutodetector(object): 
                if field.rel:

                    if field.rel.to:

                        related_fields.append((field.name, field.rel.to._meta.app_label, field.rel.to._meta.model_name))

                    if hasattr(field.rel, "through") and not field.rel.though._meta.auto_created:

                    if hasattr(field.rel, "through") and not field.rel.through._meta.auto_created:

                        related_fields.append((field.name, field.rel.through._meta.app_label, field.rel.through._meta.model_name))

            for field in new_apps.get_model(app_label, model_name)._meta.local_many_to_many:

                if field.rel.to:

                    related_fields.append((field.name, field.rel.to._meta.app_label, field.rel.to._meta.model_name))

                if hasattr(field.rel, "through") and not field.rel.through._meta.auto_created:

                    related_fields.append((field.name, field.rel.through._meta.app_label, field.rel.through._meta.model_name))

            if related_fields:

                pending_add[app_label, model_name] = related_fields