DRF-多くのシリアライズとデシリアライズ

DRF-多くのシリアライズとデシリアライズ

まず、シリアライズ

• 教室の先生を含め、すべての学生を発見

  • 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)
  students = models.ManyToManyField(to='Student',related_name='teacher')

  • 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)

  • views.py

   # 查询所有的学生对应的老师
   studentobj = models.Student.objects.all()
   stu = StudentSerializer(studentobj,many=True)
   return Response(stu.data)

  • 结果

  # 结果
  [
      {
          "name": "小张",
          "teacher": [
              {
              "id": 3,
              "name": "郑老师"
              }
          ]
      },
      {
          "name": "小李",
          "teacher": [
          {
              "id": 4,
              "name": "董老师"
              }
          ]
      },
      {
      "name": "小夏",
      "teacher": []
      },
      {
      "name": "小徐",
      "teacher": []
      }
  ]

• 学生の教育を含め、すべての教師を発見

  • 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)
    students = models.ManyToManyField(to='Student',related_name='teacher')

  • serializer.py

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

  • views.py

    teacherobj = models.Teacher.objects.all()
    teach = TeacherSerializer1(teacherobj,many=True)
    return Response(teach.data)

  • 结果

    # 结果
    [
        {
            "name": "王老师",
            "students": []
            },
            {
            "name": "刘老师",
            "students": []
            },
        {
            "name": "郑老师",
            "students": [
                {
                    "id": 1,
                    "name": "小张"
                }
            ]
        },
        {
            "name": "董老师",
            "students": [
                {
                "id": 2,
                "name": "小李"
                }
            ]
        }
    ]