diff --git a/django/core/management/commands/makemigrations.py b/django/core/management/commands/makemigrations.py index e172213176..9f20743869 100644 --- a/django/core/management/commands/makemigrations.py +++ b/django/core/management/commands/makemigrations.py @@ -49,7 +49,7 @@ class Command(BaseCommand): # Load the current graph state. Pass in None for the connection so # the loader doesn't try to resolve replaced migrations from DB. - loader = MigrationLoader(None) + loader = MigrationLoader(None, ignore_no_migrations=True) # Before anything else, see if there's conflicting apps and drop out # hard if there are any and they don't want to merge diff --git a/django/db/migrations/loader.py b/django/db/migrations/loader.py index 0d961c2b69..26047b3a85 100644 --- a/django/db/migrations/loader.py +++ b/django/db/migrations/loader.py @@ -39,10 +39,11 @@ class MigrationLoader(object): in memory. """ - def __init__(self, connection, load=True): + def __init__(self, connection, load=True, ignore_no_migrations=False): self.connection = connection self.disk_migrations = None self.applied_migrations = None + self.ignore_no_migrations = ignore_no_migrations if load: self.build_graph() @@ -156,7 +157,10 @@ class MigrationLoader(object): else: return list(self.graph.root_nodes(key[0]))[-1] except IndexError: - raise ValueError("Dependency on app with no migrations: %s" % key[0]) + if self.ignore_no_migrations: + return None + else: + raise ValueError("Dependency on app with no migrations: %s" % key[0]) raise ValueError("Dependency on unknown app: %s" % key[0]) def build_graph(self):