Django Rest Framework-发布外键 [英] Django Rest Framework - Post Foreign Key
问题描述
我是Django Rest Framework的新手,并查看了一些教程.现在,我正在尝试创建自己的结构,如下所示.我要创建一个可以的用户,然后分别创建一个配置文件.
I am new to Django Rest Framework and checked some tutorials. Now I am trying to create my own structure which is like following. I want to create a user which is OK, then create a profile seperately.
models.py
class User(models.Model):
name = models.CharField(max_length=32)
surname = models.CharField(max_length=32)
facebook_id = models.TextField(null=True)
is_sms_verified = models.BooleanField(default=False)
created = models.DateTimeField(default=timezone.now)
updated = models.DateTimeField(default=timezone.now)
status = models.BooleanField(default=1)
def __str__(self):
return self.name+" "+self.surname
class Profile(models.Model):
user = models.ForeignKey('User',on_delete=models.CASCADE)
email = models.CharField(max_length=32)
birthday = models.DateField(null=True)
bio = models.TextField(null=True)
points = models.IntegerField(default=0)
created = models.DateTimeField(default=timezone.now)
updated = models.DateTimeField(default=timezone.now)
def __str__(self):
return self.user.name+ " " + self.user.surname
serializers.py
class UserSerializer(serializers.ModelSerializer):
class Meta:
model=User
fields = ('id','name','surname','facebook_id','is_sms_verified',)
read_only_fields = ('created','updated')
class ProfileSerializer(serializers.ModelSerializer):
user = UserSerializer(read_only=True)
class Meta:
model=Profile
fields=('id','user','email','birthday','bio','points')
read_only_fields = ('created','updated')
views.py
@api_view(['POST'])
def profile_create(request):
serializer = ProfileSerializer(data=request.data)
if serializer.is_valid():
serializer.save()
return JsonResponse(serializer.data, status = status.HTTP_201_CREATED)
return JsonResponse(serializer.errors , status= status.HTTP_400_BAD_REQUEST)
我要发布的数据
{
"user_id": {
"id": 2
},
"email": "xxx@gmail.com",
"birthday": "1991-05-28",
"bio": "qudur",
"points": 31
}
我得到的错误;
NOT NULL constraint failed: core_profile.user_id
我在哪里做错了?谢谢!
Where am I doing wrong? Thanks!
推荐答案
您的 ProfileSerializer
具有 user
为 readonly
.因此,您需要更改它.我建议这样做
Your ProfileSerializer
has user
as readonly
. So you need to change that. I would suggest doing it like this
class ProfileSerializer(serializers.ModelSerializer):
class Meta:
model=Profile
fields=('id','user','email','birthday','gender','bio','points')
read_only_fields = ('created','updated')
def to_representation(self, instance):
self.fields['user'] = UserSerializer(read_only=True)
return super(ProfileSerializer, self).to_representation(instance)
如果执行此操作,则可以提供 user
作为POST的纯ID
If you do it this you could provide your user
as plain id for POST
{
"user": 2,
"email": "xxx@gmail.com",
"birthday": "1991-05-28",
"bio": "qudur",
"points": 31
}
当您读取数据时,它将看起来像这样
And when you will read data it will look like this
{
"user": {
"id": 2,
"name": "Name",
"surname": "Surname",
...
},
"email": "xxx@gmail.com",
"birthday": "1991-05-28",
"bio": "qudur",
"points": 31
}
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