diff options
Diffstat (limited to 'django/db/backends/sqlite3/schema.py')
| -rw-r--r-- | django/db/backends/sqlite3/schema.py | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/django/db/backends/sqlite3/schema.py b/django/db/backends/sqlite3/schema.py index 73c70effb9..c5f56a04a7 100644 --- a/django/db/backends/sqlite3/schema.py +++ b/django/db/backends/sqlite3/schema.py @@ -4,7 +4,6 @@ from decimal import Decimal from django.utils import six from django.apps.registry import Apps from django.db.backends.schema import BaseDatabaseSchemaEditor -from django.db.models.fields.related import ManyToManyField class DatabaseSchemaEditor(BaseDatabaseSchemaEditor): @@ -70,7 +69,7 @@ class DatabaseSchemaEditor(BaseDatabaseSchemaEditor): for field in create_fields: body[field.name] = field # Choose a default and insert it into the copy map - if not isinstance(field, ManyToManyField): + if not field.get_internal_type() == 'ManyToManyField': mapping[field.column] = self.quote_value( self.effective_default(field) ) @@ -93,7 +92,7 @@ class DatabaseSchemaEditor(BaseDatabaseSchemaEditor): del body[field.name] del mapping[field.column] # Remove any 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) # Work inside a new app registry apps = Apps() @@ -172,7 +171,7 @@ class DatabaseSchemaEditor(BaseDatabaseSchemaEditor): 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) self._remake_table(model, create_fields=[field]) @@ -182,7 +181,7 @@ class DatabaseSchemaEditor(BaseDatabaseSchemaEditor): but for M2Ms may involve deleting a table. """ # M2M fields are a special case - if isinstance(field, ManyToManyField): + if field.get_internal_type() == 'ManyToManyField': # For implicit M2M tables, delete the auto-created table if field.rel.through._meta.auto_created: self.delete_model(field.rel.through) |