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

def test_should_json_convert_jsonstring():
    assert_conversion(serializers.JSONField, graphene.types.json.JSONString)

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
            )

def to_internal_value(self, data):
        if not isinstance(data, dict):
            self.fail('invalid')

        return super(JSONField, self).to_internal_value(data)