Question

我正在努力实现类似按钮的工作。我想我有它的代码，但我不知道如何在模板中实现它。

（这是制作类似按钮的正确方法，所以如果有其他人看到这个问题，他们也可以获得帮助，以获得像按钮一样的最佳方式）

知道我知道我必须在某个时候使用Ajax，但我现在的重点只是让那些喜欢的东西显示在like按钮旁边。

models.py

class Posts(models.Model):
    post = models.CharField(max_length=3000) #probably switch to a textfield
    sender = models.ForeignKey(User, related_name='sent_the_post', null=True, blank=True)
    sent = models.DateTimeField(auto_now_add=False, auto_now=False, null=True, blank=True)
    read = models.DateTimeField(auto_now_add=False, auto_now=False, null=True, blank=True)
    timestamp = models.DateTimeField(auto_now=False, auto_now_add=True)

    class Meta:
        ordering = ['-timestamp']

    def __unicode__(self):
        return self.post

class Like(models.Model):
    liked_users = models.ManyToManyField(User, null=True, blank=True, related_name='liked_users')
    post = models.ForeignKey(Posts, null=True, blank=True)

    def __unicode__(self):
        return 'like'

views.py

def like(request):    
    if request.method == 'POST':
        post_id = request.POST['post_id']
        try:
            post = Post.objects.get(id=post_id)
        except:
            post = None
        if post:
            post_to_like, created = Like.objects.get_or_create(post=post)
            if request.user in post_to_like.liked_users:
                #this removes the user
                post_to_like.liked_users.remove(request.user)
            else:
                post_to_like.liked_users.add(request.user)

            post_to_like.save()
            like_count = post_to_like.liked_users.count() #returns number of users in the manytomanyfield

    return render_to_response('posts/wall.html', locals(), context_instance=RequestContext(request))

wall.html模板 - 以下是post div

<form action='' method='post'> {% csrf_token %}
    <input name='post_id' value='{{ post.id }}' type='hidden' />
    <input class='btn btn-default' type='submit' value='Like'>
    </form>

    {{ .like_count }}

Answer 1

只需添加模板中按钮旁边的喜欢数量：

<input class='btn btn-default' type='submit' value='Like' /> {{post.like_set.count}} likes

或使用pluralisation template tag（以便获得1 like和2 likes等）：

{% with post.like_set.count as likes %}
<input class='btn btn-default' type='submit' value='Like'> {{likes}} like{{likes|pluralize}}
{% endwith %}

在模板中的帖子上实现喜欢的数量

1 个答案: