多对多接口

• 模型 models.py

  from django.db import models
  
  # 学生类
  class Student(models.Model):
      name = models.CharField(max_length=32)
  
      # 老师类
  class Teacher(models.Model):
      name = models.CharField(max_length=32)
      stu = models.ManyToManyField(to='Student',related_name='teacher')
  

• 路由 urls.py

  urlpatterns = [
      path('student/',views.StudentView.as_view()),
  ]
  

• 序列化 serializer.py

  from rest_framework import serializers
  from . import models
  
  # 老师序列化
  class TeacherSerializer(serializers.ModelSerializer):
      class Meta:
          model = models.Teacher
          fields = ('id','name')
  # 学生序列化
  class StudentSerializer(serializers.Serializer):
      name = serializers.CharField(max_length=32)
      teacher = TeacherSerializer(many=True,read_only=True)
  

• 视图 view.py

  from rest_framework.views import APIView
  from rest_framework.response import Response
  from .serializer import *
  from . import models
  
  # 学生类
  class StudentView(APIView):
      # 查询所有的学生
      def get(self,request):
          studentobj = models.Student.objects.all()
          stu = StudentSerializer(studentobj, many=True)
          return Response({
              'status':200,
              'msg':'',
              'data':stu.data
          })
  

• 返回数据结构

  {
      "status": 200,
      "msg": "",
      "data": [
          {
              "id": 1,
              "name": "张三",
              "teacher": [
                  {
                      "id": 1,
                      "name": "张老师"
                  }
              ]
          },
          {
              "id": 2,
              "name": "李四",
              "teacher": [
                  {
                      "id": 1,
                      "name": "张老师"
                  },
                  {
                      "id": 2,
                      "name": "李老师"
                  }
              ]
          }
      ]
  }