Question

“喜欢”字段是ManyToManyField，我希望按从“喜欢”到“最少”的顺序呈现帖子。 ... order_by（“-likes”）无效，我看不出为什么这是代码。我猜是因为这不是整数，但我不能只是... order_by（“-likes.count”），对吧？

views.py

def top_Post(request, id=None):
queryset_list = Post.objects.all().order_by("-likes")

paginator = Paginator(queryset_list, 10) 
page = request.GET.get('page')
try:
    queryset = paginator.page(page)
except PageNotAnInteger:
    queryset = paginator.page(1)
except EmptyPage:
    queryset = paginator.page(paginator.num_pages)

context = {
    "object_list":queryset,
    "title":"List",
}
return render(request, 'blog/top.html', context)

top.html

{% for obj in object_list %}
<div class="card border-success mb-3" style="max-width: 54rem;">
<div class="card-header bg-transparent border-success">{{ 
obj.user|truncatechars:12}} <br> <small>{{ obj.date|timesince }} ago</small> 
</div>
<div class="card-body text-success">
<h5 class="card-title">{{ obj.title |truncatechars:13 }}</h5>
<p class="card-text">{{ obj.body|truncatechars:20 }}</p>
<a class="btn btn-outline-success" href="{{ obj.get_absolute_url }}" 
role="button">Detail</a>
</div>
<div class="card-footer bg-transparent border-success"> 
{{obj.text_author|truncatechars:25 }}</div>
</div>
{% endfor %}

models.py

class Post(models.Model):
title = models.CharField(max_length=200)
body = models.TextField()
user = models.ForeignKey(settings.AUTH_USER_MODEL, blank=True, null=True)
date = models.DateTimeField(auto_now=True, auto_now_add=False)
likes = models.ManyToManyField(settings.AUTH_USER_MODEL, blank=True, related_name='post_likes')
text_author = models.CharField(max_length=200, null=True, blank=True)

（Django）一键单击后禁用按钮（或即使单击多次也只能提交一次）

0 个答案: