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Diffstat (limited to 'django/db/backends/schema.py')
| -rw-r--r-- | django/db/backends/schema.py | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/django/db/backends/schema.py b/django/db/backends/schema.py index 7c10db7dec..12e2ab7657 100644 --- a/django/db/backends/schema.py +++ b/django/db/backends/schema.py @@ -3,7 +3,6 @@ import operator from django.db.backends.creation import BaseDatabaseCreation from django.db.backends.utils import truncate_name -from django.db.models.fields.related import ManyToManyField from django.db.transaction import atomic from django.utils.encoding import force_bytes from django.utils.log import getLogger @@ -359,7 +358,7 @@ class BaseDatabaseSchemaEditor(object): table instead (for M2M fields) """ # Special-case implicit M2M tables - if isinstance(field, ManyToManyField) and field.rel.through._meta.auto_created: + if field.get_internal_type() == 'ManyToManyField' and field.rel.through._meta.auto_created: return self.create_model(field.rel.through) # Get the column's definition definition, params = self.column_sql(model, field, include_default=True) @@ -403,7 +402,7 @@ class BaseDatabaseSchemaEditor(object): but for M2Ms may involve deleting a table. """ # Special-case implicit M2M tables - if isinstance(field, ManyToManyField) and field.rel.through._meta.auto_created: + if field.get_internal_type() == 'ManyToManyField' and field.rel.through._meta.auto_created: return self.delete_model(field.rel.through) # It might not actually have a column behind it if field.db_parameters(connection=self.connection)['type'] is None: |