1、定義一個自定義的filter.py模塊，增加一個新的過濾類

import django_filters#這個Q可以支持表查詢，單下劃線獲取表字段，雙下劃線獲取關聯表，from django.db.models import Q#引入自己的模型from app.item.models import ItemCategory#自定義的過濾類，需要繼承django_filter.rest_framework中的FilterSet類class ItemCategoryFilter(django_filters.rest_framework.FilterSet): Filter_category = django_filters.NumberFilter(method=’category_filter’, label=’Filter_category’) #django_filters.NumberFilter類似，ModelForm中字段類型的控制 #其中method指向自己定義的過濾函數，label用于標識在測試API界面中的過濾界面字段，Filter_category控制查詢字段 def category_filter(self, queryset, name, value): #這里用到多級聯表查詢 return queryset.filter(Q(category_id=value)|Q(category__parent_id=value)|Q(category__parent__parent_id=value)|Q(category__parent__parent__parent_id=value)) class Meta: model = ItemCategory fields = []

2、將視圖處理類中的，過濾器后端重新指定，將過濾器類連接到我們自定義實現的處理類上

class ItemsListByCategory(generics.ListCreateAPIView): ’’’ 根據category編號獲取相關模型no。 請求中請帶有參數category @:require param: category such as: GET /itemsListByCategory/?Filter_category=2 ’’’ from django_filters.rest_framework import DjangoFilterBackend from app.item.filters import ItemCategoryFilter queryset = ItemCategory.objects.all() serializer_class = ItemCategorySerializer pagination_class = CommonPagination # 在這里哦 filter_backends = (DjangoFilterBackend,) filter_class =ItemCategoryFilter permission_classes = (ReadOnly,)

補充知識：Django restful framework 中的 filter 自定義過濾

class AlertFilter(django_filters.rest_framework.FilterSet): ....... to_bearer_service = django_filters.rest_framework.CharFilter(method=’to_bearer_service_filter’, label=’bearer_service’) class Meta: model = Alert fields = [......, ’to_bearer_service’] @staticmethod # 如果想獲取請求信息可以去掉這個靜態方法的裝飾器，為什么要加靜態方法裝飾器我也不清楚 def to_bearer_service_filter(queryset, name, value): Q_id = Q() for i in value.split(','): if i == '0':Q_id.add(Q(**{’to_bearer_service’:None}), Q.OR) else:Q_id.add(Q(**{’to_bearer_service_id’: int(i)}), Q.OR) queryset = queryset.filter(Q_id) return queryset def to_bearer_service_filter(self, queryset, name, value): Q_id = Q() for i in value.split(','): if i == '0':Q_id.add(Q(**{’to_bearer_service’:None}), Q.OR) else:Q_id.add(Q(**{’to_bearer_service_id’: int(i)}), Q.OR) queryset = queryset.filter(Q_id) return queryset

以上這篇Django-rest-framework中過濾器的定制實例就是小編分享給大家的全部內容了，希望能給大家一個參考，也希望大家多多支持好吧啦網。