使用Django-tastypi对元素列表进行高级过滤

Question

我使用MultiSelectField在我的django管理中选择多个选项它为我选择的所有选项的后端字段创建了一个数组。然后我使用django tastypie'sList字段来确保它是api返回的元素列表。你知道吗

我的问题是，当我在构建过滤器时，我将/api/?brand_category=Clothing&q=athletic,bohemian放到浏览器中，它只返回一个空列表。所以我想知道我是不是做错了什么？或者没有正确构建过滤器？你知道吗

型号.py

class Brand(models.Model):

    # category
    brand_category = MultiSelectField(max_length=100, blank=True, choices=categories))

    # style
    brand_style = MultiSelectField(max_length=100, choices=styles, blank=True)

api.py公司

class LabelResource(ModelResource):

    brand_category = fields.ListField(attribute='brand_category')

    brand_style = fields.ListField(attribute='brand_style')

    class Meta:

        filtering = {
            "brand_category": ALL,
            "brand_style": ALL,
            "q": ['exact', 'startswith', 'endswith', 'contains', 'in'],

        }


def build_filters(self, filters=None):
    if filters is None:
        filters = {}

    orm_filters = super(LabelResource, self).build_filters(filters)


    if('q' in filters):
        query = filters['q']

        qset = (
            Q(brand_style__in=query) 
        )

        orm_filters.update({'custom': qset})

    return orm_filters

def apply_filters(self, request, applicable_filters):
    if 'custom' in applicable_filters:
        custom = applicable_filters.pop('custom')

    else:
        custom = None

    semi_filtered = super(LabelResource, self).apply_filters(request, applicable_filters)

    return semi_filtered.filter(custom) if custom else semi_filtered

JSON响应

{
  "brand_category": [
    "Clothing"
  ],
  "brand_style": [
    "athletic",
    "bohemian",
    "casual"
  ]
}

Answer 1

filters['q']是athletic,bohemian字符串。__in查找需要一个列表或元组。你知道吗

query = filters['q'].split(',')