diff options
Diffstat (limited to 'rest_framework/serializers.py')
| -rw-r--r-- | rest_framework/serializers.py | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/rest_framework/serializers.py b/rest_framework/serializers.py index 5c726dfc..88972e25 100644 --- a/rest_framework/serializers.py +++ b/rest_framework/serializers.py @@ -757,6 +757,9 @@ class ModelSerializer(Serializer): field.read_only = True ret[accessor_name] = field + + # Ensure that 'read_only_fields' is an iterable + assert isinstance(self.opts.read_only_fields, (list, tuple)), '`read_only_fields` must be a list or tuple' # Add the `read_only` flag to any fields that have been specified # in the `read_only_fields` option @@ -771,7 +774,10 @@ class ModelSerializer(Serializer): "on serializer '%s'." % (field_name, self.__class__.__name__)) ret[field_name].read_only = True - + + # Ensure that 'write_only_fields' is an iterable + assert isinstance(self.opts.write_only_fields, (list, tuple)), '`write_only_fields` must be a list or tuple' + for field_name in self.opts.write_only_fields: assert field_name not in self.base_fields.keys(), ( "field '%s' on serializer '%s' specified in " |