如何从用户在Django REST中加入的社区获取所有帖子

# models.py
from django.db import models

class Post(models.Model):
    title = models.CharField(max_length=100)
    content = models.TextField()
    author = models.ForeignKey(User, on_delete=models.CASCADE)
    created_at = models.DateTimeField(auto_now_add=True)

# views.py
from rest_framework.views import APIView
from rest_framework.response import Response
from .models import Post
from .serializers import PostSerializer

class PostListView(APIView):
    def get(self, request):
        posts = Post.objects.all()
        serializer = PostSerializer(posts, many=True)
        return Response(serializer.data)

# urls.py
from django.urls import path
from .views import PostListView

urlpatterns = [
    path('posts/', PostListView.as_view(), name='post-list'),
]

# serializers.py
from rest_framework import serializers
from .models import Post

class PostSerializer(serializers.ModelSerializer):
    class Meta:
        model = Post
        fields = ['title', 'content', 'author', 'created_at']