我试过类似的方法，但不管用。
class PostSerializer(serializers.ModelSerializer):
class Meta:
model = Post
def save(self):
user = self.context['request.user']
title = self.validated_data['title']
article = self.validated_data['article']
我需要一种能够访问请求的方法。用户从我的Serializer类。
当前回答
对于那些使用Django ORM并将用户添加为外键的人，他们将需要包括用户的整个对象，而我只能在create方法中做到这一点，并删除必选字段:
class PostSerializer(serializers.ModelSerializer):
def create(self, validated_data):
request = self.context.get("request")
post = Post()
post.title = validated_data['title']
post.article = validated_data['article']
post.user = request.user
post.save()
return post
class Meta:
model = Post
fields = '__all__'
extra_kwargs = {'user': {'required': False}}
其他回答
您无法访问该请求。直接用户。您需要访问请求对象，然后获取用户属性。
是这样的:
user = self.context['request'].user
或者为了安全起见，
user = None
request = self.context.get("request")
if request and hasattr(request, "user"):
user = request.user
更多的上下文可以在这里阅读
实际上，你不需要考虑上下文。有一个更好的方法:
from rest_framework.fields import CurrentUserDefault
class PostSerializer(serializers.ModelSerializer):
class Meta:
model = Post
def save(self):
user = CurrentUserDefault() # <= magic!
title = self.validated_data['title']
article = self.validated_data['article']
对于那些使用Django ORM并将用户添加为外键的人，他们将需要包括用户的整个对象，而我只能在create方法中做到这一点，并删除必选字段:
class PostSerializer(serializers.ModelSerializer):
def create(self, validated_data):
request = self.context.get("request")
post = Post()
post.title = validated_data['title']
post.article = validated_data['article']
post.user = request.user
post.save()
return post
class Meta:
model = Post
fields = '__all__'
extra_kwargs = {'user': {'required': False}}
你可以通过请求。用户在视图中调用.save(…)时:
class EventSerializer(serializers.ModelSerializer):
class Meta:
model = models.Event
exclude = ['user']
class EventView(APIView):
def post(self, request):
es = EventSerializer(data=request.data)
if es.is_valid():
es.save(user=self.request.user)
return Response(status=status.HTTP_201_CREATED)
return Response(data=es.errors, status=status.HTTP_400_BAD_REQUEST)
这是模型:
class Event(models.Model):
user = models.ForeignKey(to=settings.AUTH_USER_MODEL, on_delete=models.CASCADE)
date = models.DateTimeField(default=timezone.now)
place = models.CharField(max_length=255)
正如Igor在其他回答中提到的，您可以使用CurrentUserDefault。如果你不想为此重写save方法，那么使用doc:
from rest_framework import serializers
class PostSerializer(serializers.ModelSerializer):
user = serializers.PrimaryKeyRelatedField(read_only=True, default=serializers.CurrentUserDefault())
class Meta:
model = Post
