serializers.py 文件源码

def classify_model_fields(model_fields):
    """ Seperate already initialized drf_fields from the rest. """
    drf_fields = {}
    field_properties = {}
    for field_name, value in model_fields.iteritems():
        if isinstance(value, serializers.Field):
            drf_fields[field_name] = value
        else:
            assert isinstance(value, dict), (
                'A dictionary of serializer field properties is expected.'
                ' A {!r} found'.format(str(type(value))))
            field_properties[field_name] = value
    return field_properties, drf_fields