Django过滤用户点赞帖子

from django.db import models
from django.contrib.auth.models import User

class Post(models.Model):
    title = models.CharField(max_length=100)
    content = models.TextField()
    likes = models.IntegerField(default=0)
    user = models.ForeignKey(User, on_delete=models.CASCADE)

from django.shortcuts import render, get_object_or_404
from django.http import JsonResponse

def like_post(request, post_id):
    post = get_object_or_404(Post, id=post_id)
    
    if request.user.is_authenticated:
        if post.user != request.user:  # 确保用户不能给自己的帖子点赞
            post.likes += 1
            post.save()
            return JsonResponse({'status': 'success', 'message': '点赞成功'})
        else:
            return JsonResponse({'status': 'error', 'message': '不能给自己的帖子点赞'})
    else:
        return JsonResponse({'status': 'error', 'message': '请先登录'})

from django.urls import path
from .views import like_post

urlpatterns = [
    path('post/<int:post_id>/like/', like_post, name='like_post'),
]

<!-- post.html -->
{% extends 'base.html' %}

{% block content %}
  <h1>{{ post.title }}</h1>
  <p>{{ post.content }}</p>
  <p>Likes: <span id="likes">{{ post.likes }}</span></p>
  <button id="like-btn">点赞</button>

  <script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
  <script>
    $(document).ready(function() {
      $('#like-btn').click(function() {
        var post_id = {{ post.id }};
        $.ajax({
          url: '/post/' + post_id + '/like/',
          type: 'POST',
          success: function(response) {
            if (response.status === 'success') {
              var likes = parseInt($('#likes').text());
              $('#likes').text(likes + 1);
            }
            alert(response.message);
          }
        });
      });
    });
  </script>
{% endblock %}