课程主页面三个接口开发

课程主页面三个接口开发

0.课程主页面接口对应页面效果

1.课程类别接口开发
1.1 course/urls.py 添加路由

from django.urls import path, re_path
from rest_framework.routers import DefaultRouter # 导入DRF得DefaultRouter
from . import views
router = DefaultRouter() # 有根路由
router.register(r'type', views.CourseTypeViewSet) # 写路由
urlpatterns = [
]
urlpatterns += router.urls # 把两个路由列表相加
1.2 course/serializers.py 写序列化器

from rest_framework import serializers
from course.models import CourseType
class CourseTypeSerializer(serializers.ModelSerializer):
class Meta:
model = CourseType
fields = 'all'
1.3 course/views.py 添加视图函数

from rest_framework import viewsets
from rest_framework.pagination import PageNumberPagination
from course.models import *
from course.serializers import *
class PageNum(PageNumberPagination):
page_size_query_param = 'page_size'
class CourseTypeViewSet(viewsets.ModelViewSet):
queryset = CourseType.objects.all()
serializer_class = CourseTypeSerializer
1.4 course/admin.py 注册后台管理

from django.contrib import admin
from . import models
admin.site.register(models.CourseType)
1.5 测试接口
http://192.168.56.100:8888/course/type/

2.标签接口开发
2.1 course/urls.py 添加路由

router.register(r'tag', views.CourseTagViewSet)
2.2 course/serializers.py 写序列化器

from rest_framework import serializers
from course.models import CourseTag
class CourseTagSerializer(serializers.ModelSerializer):
class Meta:
model = CourseTag
fields = 'all'
2.3 course/views.py 添加视图函数

from course.models import *
from course.serializers import *
class CourseTagViewSet(viewsets.ModelViewSet):
queryset = CourseTag.objects.all()
serializer_class = CourseTagSerializer
2.4 course/admin.py 注册后台管理

from django.contrib import admin
from . import models
admin.site.register(models.CourseTag)
2.5 测试接口
http://192.168.56.100:8888/course/tag/

3.课程接口开发
3.1 course/urls.py 添加路由

router.register(r'course', views.CourseViewSet)
3.2 course/serializers.py 写序列化器

-- coding: utf-8 --

from rest_framework import serializers
from course.models import *
class CourseSerializer(serializers.ModelSerializer):
class Meta:
model = Course
fields = 'all' # 所有字段
class SectionsSerializer(serializers.ModelSerializer):
class Meta:
model = Sections
fields = 'all'
class ChaptersSerializer(serializers.ModelSerializer):
sections = SectionsSerializer(many=True)
class Meta:
model = Chapters
fields = 'all'
class CourseDeepSerializer(CourseSerializer):

字段名名, 必须是模型可以 . 引用到的变量

Course(). "chapters" 才能作为字段名, 如果是集合, 需要加many=True,

chapters = ChaptersSerializer(many=True)
3.3 course/views.py 添加视图函数

from django.shortcuts import render
from django_filters.rest_framework import DjangoFilterBackend
from rest_framework import viewsets
from rest_framework.filters import OrderingFilter
from rest_framework.pagination import PageNumberPagination
from course.models import *
from course.serializers import *
class CourseViewSet(viewsets.ModelViewSet):
queryset = Course.objects.all()
serializer_class = CourseDeepSerializer

指定过滤方法类, 排序方法类, 一个或多个

filter_backends = (DjangoFilterBackend, OrderingFilter) # 同时支持过滤和排序

指定排序字段, 不设置, 排序功能不起效

ordering_fields = ('attention', 'learner', 'create_time')

指定过滤字段, 不设置, 过滤功能不起效

filter_fields = ('title', 'desc', 'status', 'course_type', 'course_tag')

自定义分页器 覆盖全局配置

pagination_class = PageNum
def get_serializer_class(self):
if self.action == 'list':
return CourseSerializer
else:
return CourseDeepSerializer
3.4 course/admin.py 注册后台管理

from django.contrib import admin
from . import models
admin.site.register(models.Course)
3.5 测试接口
http://192.168.56.100:8888/course/course/