title: Django : Passing multiple objects to templates but nothing in there
body: <p>I wanted to pass two objects to templates, so I put theme in the context and try to send them but failed.  I tried few times but it seems like user get objects but comment is always empty even though there are some data in db. </p>
  
  <p>This is views.py</p>
  
  <pre><code>@login_required
  def detail(request, article_no):
      if not request.user.is_authenticated():
          return redirect_to_login(next, 'blog/login.html')
  else:
      user = request.user
  
      if 'username' in request.session:
          username = request.session['username']
          item = get_object_or_404(Article, pk=article_no)
          item.hit = Article.objects.filter(pk=article_no).update(hit = item.hit+1)
          #comment = Comment.objects.filter(pk=article_no).order_by('comment_no')
          comment = Comment.objects.all()
          context = {
               'item': item,
               'comment': comment,
              }
      return render(request, 'blog/detail.html', context)
  </code></pre>
  
  <p>this is models.py</p>
  
  <pre><code>from datetime import datetime
  from django.db import models
  from django.template.defaultfilters import default
  
  class Article(models.Model):
     no = models.AutoField(primary_key=True)
     title = models.CharField(max_length=50)
     content = models.CharField(max_length=300)
     writer = models.CharField(max_length=50)
     is_visible = models.BooleanField(default=True)
     created_date = models.DateTimeField(editable=False, default=datetime.now())
     hit = models.IntegerField(default=1)
  
  class Comment(models.Model):
      article_no = models.IntegerField(default=1)
      comment_no = models.AutoField(primary_key=True)
      comment_writer = models.CharField(max_length=50)
      comment_body = models.CharField(max_length=300)
      comment_date = models.DateTimeField(editable=False, default=datetime.now())
  </code></pre>
  
  <p>template</p>
  
  <pre><code>         {{ item.title }}
           {{ item.no }}
           {{ item.writer }}
           {{ item.hit }}
           {{ item.created_date }}
           {{ item.content }}
   {% if comments %}
  
                  {% for comment in comments %}
  
                  {{ comment.comment_no }}
                  {{ comment.comment_writer }}
                  {{ comment.comment_body }}
                  {{ comment.comment_date }}
  
                  {% endfor %}
  
                  {% else %}
                  &lt;div class="row"&gt;no comment.&lt;/div&gt;
              {% endif %}
  </code></pre>