Django 使用查询集对象的属性

Question

我为我的页面创建了 cmets/messages 区域。我也为他们创建了like按钮。当用户进入页面时，我想显示他默认的喜欢按钮（喜欢或不喜欢）。 如果用户在点赞列表中，我想显示他的不同，但如果它不在列表中，也就是说，如果它还没有被点赞，我想显示点赞按钮。强>

观看次数：

def detail_post(request,_detail):
   postDetail =  UserPosts.objects.get(pk = _detail) #This is post
   messages = UserMessages.objects.all().filter(post_id =postDetail.id) #This is comment of post

   # I tried this but iit is not works
   for x in messages:
      total = x.like_message.all()
      print(total)    
   context= {
    "detail":postDetail,
    "messages":messages,
   }

模板：

{% for message in messages %}
     {% if message.username_id == request.user.id %}
           <button class="btn btn-primary btn-sm" title="You can't like your message" disabled >Like</button>
     {% else %}
          <button class="btn btn-primary btn-sm text-white btn-like {{ message.id }} " type="submit" name="usermessages_id"
          value="{{ message.id }}" id="{{ message.id }}"> Like </button>
      {% endif %}
{% endfor %}

这是我在 Views 文件中编写的 for 循环的输出：

  <QuerySet [<User: vahandag>]>
  <QuerySet [<User: vahandag>, <User: GladyaTH0R>, <User: user2>, <User: user3>, <User: vahandag1905>]>
  <QuerySet []>
  <QuerySet []>
  <QuerySet [<User: vahandag1905>]>
  <QuerySet [<User: vahandag1905>]>
  <QuerySet [<User: vahandag>]>

我想要这个：

{% if message.username in message.like_message.all() %}
      <button> Unlike </button>
{% else %}
      <button> Like </button>
{% endif %}

有人有想法吗？

Answer 1

试试这个

{% if message.username in message.like_message.all %}
      <button> Unlike </button>
{% else %}
      <button> Like </button>
{% endif %}

您不必在模板引擎中以 '()' 结束方法

Answer 2

试试这个

def detail_post(request,_detail):
    postDetail =  UserPosts.objects.get(pk = _detail) 
    messages = UserMessages.objects.all().filter(post_id=postDetail.id).values() 
    #This is comment of post

    # I tried this but iit is not works
    for x in messages:
        total = x.like_message.all()
        print(total)    
        context= {
           "detail":postDetail,
           "messages":messages,
           }