utils.py 文件源码

def filter_fields_to_type(klass, query_dict):
    reserved_fields = ['order_by', 'format', 'limit', 'offset']

    q = QuerySet(klass)

    query = dict(query_dict)

    fields = {}
    for field in q.model._meta.fields:
        fields[field.column] = field

    # Remove the reserved fields we know about.
    for field in query.keys():
        if field in reserved_fields:
            del query[field]

    # This will error if it find an unknown field and cause the standard tasty pie query to run.
    for field in query.keys():
        try:
            field_type = type(fields[field])
            value = query[field]

            if field_type == django_fields.AutoField or field_type == django_fields.IntegerField:
                value = int(value)
            elif field_type == django_fields.BooleanField:
                value = (value.lower() == 'true')

            query[field] = value
        except KeyError:
            pass

    return query


# monkey-patch ResourceOptions to have a default-empty readonly list