diff options
Diffstat (limited to 'rest_framework/relations.py')
| -rw-r--r-- | rest_framework/relations.py | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/rest_framework/relations.py b/rest_framework/relations.py index 02185c2f..163a8984 100644 --- a/rest_framework/relations.py +++ b/rest_framework/relations.py @@ -33,6 +33,7 @@ class RelatedField(WritableField): many_widget = widgets.SelectMultiple form_field_class = forms.ChoiceField many_form_field_class = forms.MultipleChoiceField + null_values = (None, '', 'None') cache_choices = False empty_label = None @@ -168,9 +169,9 @@ class RelatedField(WritableField): return value = [] if self.many else None - if value in (None, '') and self.required: - raise ValidationError(self.error_messages['required']) - elif value in (None, ''): + if value in self.null_values: + if self.required: + raise ValidationError(self.error_messages['required']) into[(self.source or field_name)] = None elif self.many: into[(self.source or field_name)] = [self.from_native(item) for item in value] |