Question

我有以下型号。

Models.py

from django.db import models
from rest_framework.validators import UniqueValidator
import datetime
# Create your models here.

class Member(models.Model):
    uin = models.CharField(max_length=9)
    name = models.CharField(max_length = 15)
    cardNumber = models.CharField(max_length=55,blank=True) 
    points = models.IntegerField()

    class Meta: 
        ordering = ['uin']

    def __str__(self):
        return self.uin

class Event(models.Model):
    eventName = models.CharField(max_length=60,blank=True)
    points = models.IntegerField(default = 0)
    date = models.DateField( default=datetime.date.today)
    members = models.ManyToManyField(Member)
    class Meta: 
        ordering = ['eventName'] 

    def __str__(self):
        return self.eventName

以及以下序列化器

class MemberSerializer(serializers.ModelSerializer):
    class Meta:
        model = Member 
        # validators = UniqueValidator(queryset=)
        fields = ['name','uin','points','cardNumber']
    # overloading to_representation for if you want to add new datafields 
    def to_representation(self, instance):

        data = super().to_representation(instance)
        return data

class EventSerializer(serializers.ModelSerializer):
    class Meta: 
        model = Event 
        fields = ['id','eventName','date', 'members','points']
    # overloading to_representation for if you want to add new datafields 
    def to_representation(self, instance):

        data = super().to_representation(instance)
        return data

在新的端点上，我希望用户提供事件ID和卡号。给定这些参数，我希望api将这个成员添加到事件中。

我已经能够使用django shell进行以下操作：

givenId = 1
givenCardNumber = '123439483'
# select desired event 
selectedEvent =  Event.objects.filter(id=givenId)
selectedMember = Member.objects.filter(cardNumber=givenCardNumber)
selectedEvent.members.add(selectedMember)

但是，我希望能够使用api做到这一点。

部分更新ManytoMany字段DjangoRestFramework

0 个答案: