区间过滤 课程章节接口

区间过滤

# 借助django-filter实现区间过滤
# 实现区间过滤
##########1 filters.py
class CourseFilterSet(FilterSet):
    # 课程的价格范围要大于min_price，小于max_price
    min_price = filters.NumberFilter(field_name='price', lookup_expr='gt')
    max_price = filters.NumberFilter(field_name='price', lookup_expr='lt')
    class Meta:
        model=models.Course
        fields=['course_category']
#####2 视图类中配置
     -filter_backends=[DjangoFilterBackend]
     # 配置类：（自己写的类）
     -filter_class = CourseFilterSet

课程单查接口

class CouresView(GenericViewSet,ListModelMixin,RetrieveModelMixin):
    queryset = models.Course.objects.filter(is_delete=False,is_show=True).order_by('orders')
    serializer_class = serializer.CourseModelSerializer
    pagination_class = PageNumberPagination

    # 过滤和排序
    # filter_backends=[DjangoFilterBackend,OrderingFilter,SearchFilter]
    # filter_backends=[DjangoFilterBackend,OrderingFilter,MyFilter]
    filter_backends=[DjangoFilterBackend,OrderingFilter]
    # # filter_backends=OrderingFilter
    ordering_fields=['id', 'price', 'students']
    # # search_fields=['course_category']
    filter_fields=['course_category']

章节分类接口

#1 urls.py
router.register('chapters', views.CourseChapterView, 'coursechapter')

# 2 views.py
class CourseChapterView(GenericViewSet,ListModelMixin):
    queryset = models.CourseChapter.objects.filter(is_delete=False,is_show=True)
    serializer_class = serializer.CourseChapterSerializer

    # 可以按照课程id来查
    filter_backends = [DjangoFilterBackend]
    filter_fields = ['course']
    
    
    
# 3 serializer.py
class CourseSectionSerializer(serializers.ModelSerializer):
    class Meta:
        model=models.CourseSection
        fields=['name','orders','duration','free_trail','section_link','section_type_name']
class CourseChapterSerializer(serializers.ModelSerializer):
    # 子序列化的方式
    coursesections=CourseSectionSerializer(many=True)
    class Meta:
        model=models.CourseChapter
        fields=['name','summary','chapter','coursesections']