Python rest_framework.serializers 模块，DictField() 实例源码

def test_should_dict_convert_dict():
    assert_conversion(serializers.DictField, DictType)

def get_fields(self):
        field_mapping = OrderedDict()
        for key, value in self.instance.items():
            if key == 'node_class':
                field_mapping['to'] = serializers.CharField(default=value.__label__)
            elif isinstance(value, RelationshipMeta):
                field_mapping['meta'] = serializers.DictField(
                    child=serializers.CharField(),
                    default={k: v.default for k, v in value.__dict__.items() if isinstance(v, properties.Property)})
            elif key == 'direction':
                field_mapping[key] = serializers.IntegerField(default=value)
            elif key == 'relation_type':
                field_mapping[key] = serializers.CharField(default=value)
        return field_mapping

def fallback_schema_from_field(self, field):
        """ Fallback schema for field that isn't inspected properly by DRF
        and probably won't land in upstream canon due to its hacky nature only for doc purposes
        """
        title = force_text(field.label) if field.label else ''
        description = force_text(field.help_text) if field.help_text else ''

        # since we can't really inspect dictfield and jsonfield, at least display object as type
        # instead of string
        if isinstance(field, (serializers.DictField, serializers.JSONField)):
            return coreschema.Object(
                properties={},
                title=title,
                description=description
            )