Django Rest - Posted数据在外键引用的表中创建新行

from django.db import models

class User(models.Model):
    name = models.CharField(max_length=100)
    # 其他字段...

class Post(models.Model):
    user = models.ForeignKey(User, on_delete=models.CASCADE)
    title = models.CharField(max_length=100)
    content = models.TextField()
    # 其他字段...

from rest_framework import viewsets
from .serializers import PostSerializer

class PostViewSet(viewsets.ModelViewSet):
    queryset = Post.objects.all()
    serializer_class = PostSerializer

    def create(self, request, *args, **kwargs):
        serializer = self.get_serializer(data=request.data)
        serializer.is_valid(raise_exception=True)
        
        # 获取外键引用的数据
        user_id = serializer.validated_data.get('user')
        user = User.objects.get(id=user_id)
        
        # 创建新的数据行
        post = Post.objects.create(user=user, **serializer.validated_data)
        
        return Response(serializer.data, status=status.HTTP_201_CREATED)