django的模板：渲染字典內的字典和元件

Question

使用視圖我已生成以下字典結構：

{'badge-bronze': {'badge_recipients': [<User: aa>, <User: ni>], 'badge': 'badge-bronze', 'page_class': 'meta'}, 'badge-silver': {'badge_recipients': [<User: ni>], 'badge': 'badge-silver', 'page_class': 'meta'}, 'badge-gold': {'badge_recipients': [<User: ni>], 'badge': 'badge-gold', 'page_class': 'meta'}} 

這裏是我所產生的字典（只包括我構建字典其中的部分）

def contest(request): 
    all_badges = badge_data.BADGES.keys() 
    data = {} 
    for badge in all_badges: 
     if badge == 'badge-bronze' or badge == 'badge-silver' or badge == 'badge-gold': 
      badge_data_info = get_object_or_404(BadgeData, slug=badge) 
      badge_recipients = User.objects.filter(
           award_user__badge = badge_data_info 
          ).annotate(
           last_awarded_at = Max('award_user__awarded_at'), 
           award_count = Count('award_user') 
          ).order_by(
           '-last_awarded_at' 
          )       
      data[badge] = { 
       'badge_recipients' : badge_recipients, 
       'badge' : badge_data_info, 
       'page_class': 'meta', 
      } 
    #import pdb 
    #pdb.set_trace()  
    return render(request, 'contest.html', {'data':data}) 

在我的模板我試圖使其如下：

<div id="award-list"> 
    {% for key,value in data.items %} 
     <li>key</li> 
     {% for recipient in value.badge_recipients %} 
      <div class="user"> 
        <span class="thumb">{{ gravatar(recipient, 32) }}</span> 
        <span><a href="{{ recipient.get_absolute_url() }}">{{recipient.username|escape}}</a></span> 
        <span>{{ macros.user_score_and_badge_summary(user) }}</span> 
      </div> 
     {% endfor %} 
    {% endfor %} 
</div> 

但我得到錯誤說數據沒有定義，也沒有得到渲染。基於提供的答案，我做了更改，現在我的錯誤如下：'builtin_function_or_method' object is not iterable

Answer 1

那是因爲您沒有向模板提供任何名爲data的變量。

變化

return render(request, 'contest.html', data) 

通過

return render(request, 'contest.html', {'data': data}) 

Answer 2

你應該在模板中使用的關鍵 'badge_recipients'：我設法找出解決方案

<div id="award-list"> 
    {% for key,value in data.items %} 
     <li>key</li> 
     {% for recipient in value.badge_recipients %} 
      <div class="user"> 
        <span class="thumb">{{ gravatar(recipient, 32) }}</span> 
        <span><a href="{{ recipient.get_absolute_url() }}">{{recipient.username|escape}}</a></span> 
        <span>{{ macros.user_score_and_badge_summary(user) }}</span> 
      </div> 
     {% endfor %} 
    {% endfor %} 
</div 

Answer 3

隨着上述答案的幫助對於這個問題：

首次定位是：

return render(request, 'contest.html', data)到return render(request, 'contest.html', {'data': data})

然後，當你遍歷詞典中，你所要做的dictionary.items()這是從上面的答案唯一缺少的東西。

<div id="award-list"> 
    {% for key,value in draw.items() %} 
     {% for recipient in value.badge_recipients %} 
      <div class="user"> 
        <span class="thumb">{{ gravatar(recipient, 32) }}</span> 
        <span><a href="{{ recipient.get_absolute_url() }}">{{recipient.username|escape}}</a></span> 
        <span>{{ macros.user_score_and_badge_summary(user) }}</span> 
      </div> 
     {% endfor %} 
    {% endfor %} 
</div>