一、基本配置：
1、安装：pip install django-filter
2、将 django_filters 配置到INSTALLED-APPS中
3、对 REST_FRAMEWORK 配置：
REST_FRAMEWORK = {
"DEFAULT_FILTER_BACKENDS":("django_filters.rest_framework.DjangoFilterBackend",)
}
二、基本过滤器的使用
from django_filters.rest_framework.DjangoFilterBackend
在对应的View中添加配置
class GoodLists(mixins.ListModelMixin, viewset.GenericViewSet):
...
# 使用过滤器
filter_backends = (DjangoFilterBackend,)
# 定义需要过滤的字段
filter_fields = ("name", "price")
三、自定义过滤器
1、创建一个filter.py文件
import django_filters
from django.db.models import Q
from .model import Goods
class GoodsFilter(django_filters.rest_framework.FilterSet):
pricemin = django_filters.NumberFilter(name = "shop_price", lookup_expr = "gte")
pricemax = django_fliters.NumberFilter(name = "shop_price", lookup_expr = "lte")
name = django_filters.CharFilter(name = "name", lookup_expr = "icontains")
top_category = django_fllters.NumberFilter(name = "category", method = "get_top_category")
def get_top_category(self, queryset, name, value):
return queryset.filter(Q(category_id = value) | Q(category_parent_category_id = value))
class Meta:
model = Goods
fields = ["pricemin", "pricemax", "name"]
2、在视图中使用自定义过滤器
from .filter import GoodsFilter
class GoodLists(mixins.ListModelMixin, viewsets.GenericViewSet):
...
filter_backends = (DjangoFilterBackends, filter.SearchFilter, filter.OrderingFilter) # SearchFilter：搜索过滤器，OrderingFilter：排序过滤器
filter_fields = ("name", "shop_price")
# 自定义过滤器的使用
filter_class = GoodsFilter
search_fields = ("name", "good_brief") # 搜索的内容包含在name中，或者包含在商品描述中
ordering_fields = ("sold_num", "shop_price") # 排序