diff options
Diffstat (limited to 'django/db/models/fields')
| -rw-r--r-- | django/db/models/fields/related.py | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/django/db/models/fields/related.py b/django/db/models/fields/related.py index f490066516..98ec36b656 100644 --- a/django/db/models/fields/related.py +++ b/django/db/models/fields/related.py @@ -1692,11 +1692,12 @@ class ForeignKey(ForeignObject): return field_default def get_db_prep_save(self, value, connection): - if value == '' or value is None: + if value is None or (value == '' and + (not self.related_field.empty_strings_allowed or + connection.features.interprets_empty_strings_as_nulls)): return None else: - return self.related_field.get_db_prep_save(value, - connection=connection) + return self.related_field.get_db_prep_save(value, connection=connection) def value_to_string(self, obj): if not obj: |