無法存取Django模板內的字典值

這是我的看法功能：無法存取Django模板內的字典值

def detail(request, movie_id): 
    movie = Movie.objects.get(id = movie_id) 
    movieReleases = Release.objects.filter(movie = movie) 
    reviews = Review.objects.filter(movie = movie) 

    initRating = 0 

    if request.user.is_authenticated(): 
     user = Account.objects.get(user = request.user.id) 
     try: 
      myreview = Review.objects.get(movie = movie, user = user) 
      initRating = myreview.rating 
     except: 
      pass 

     releaseContext = dict() 
     for release in movieReleases: 
      if release.isReleased(): 
       releaseContext[release.id] = {'buttonURL' : reverse('movies.views.add', args=(release.id,)), 'buttonText' : 'Add to cart'} 
      elif MovieReleaseReminder.objects.filter(account=user, movie=release).exists(): 
       releaseContext[release.id] = {'buttonURL' : reverse('movies.views.unsubscribeFromReleaseReminder', args=(release.id,)), 'buttonText' : 'Unsubscribe from release reminder'} 
      else: 
       releaseContext[release.id] = {'buttonURL' : reverse('movies.views.subscribeForReleaseReminder', args=(release.id,)), 'buttonText' : 'Subscribe to release reminder'} 

     if MovieUpdateSubscription.objects.filter(account=user, movie=movie).exists(): 
      movieSubscribeURL = reverse('movies.views.unsubscribeFromUpdates', args=(movie.id,)) 
      movieSubscribeButtonText = 'Unsubscribe from updates' 
     else: 
      movieSubscribeURL = reverse('movies.views.subscribeForUpdates', args=(movie.id,)) 
      movieSubscribeButtonText = 'Subscribe for updates' 

    else: 
     releaseContext = None 
     movieSubscribeURL = None 
     movieSubscribeButtonText = None 


    averageRating = calculateAverageRating(movie) 

    t = loader.get_template('movies/detail.html') 
    c = RequestContext(request, {'movie' : movie, 
           'movieReleases' : movieReleases, 
           'releaseContext' : releaseContext, 
           'reviews': reviews, 
           'averageRating': averageRating, 
           'initRating': initRating, 
           'movieSubscribeURL' : movieSubscribeURL, 
           'movieSubscribeButtonText' : movieSubscribeButtonText}) 
    return HttpResponse(t.render(c))

這裏是有問題的模板代碼：

{% if movieReleases%} 
    <table border="1px"> 
     {% for release in movieReleases %} 
      <tr> 
       <td>{{release.format}}</td> 
       <td>{{release.region}}</td> 
       <td>{{release.price}}</td> 
       {% if user.is_authenticated %} 
        {% with release_id=release.id %} 
         <td><form action="{{ releaseContext.release_id.buttonURL }}" method="post">{% csrf_token %}<input type="submit" value="{{ releaseContext.release_id.buttonText }}" /></form></td> 
        {% endwith %} 
       {% endif %} 
      </tr> 
     {% endfor %} 
    </table> 
{% endif %}

的問題是，無論{{ releaseContext.release_id.buttonURL }}和{{ releaseContext.release_id.buttonText }}正在評估向空字符串，即使我已經在調試器中檢查了releaseContext具有適當的數據。我錯過了什麼？

來源

2012-08-02 Bwmat

由於releaseContext是一本字典，屬性查詢（xy格式）是不是您所需要的，但元素查找（X [Y]）。

所以不是：

{{ releaseContext.release_id.buttonURL }}

使用

{{ releaseContext['release_id']['buttonURL'] }}

來源

2012-08-02 02:42:39

哦，我不知道，你可以在模板中使用的方括號。我記得在某處使用'。'使得Django以某種順序嘗試所有的成員，方法，字典查找，所以我認爲它是唯一的操作符。 – Bwmat 2012-08-02 03:26:07

annnnnnnnnd it does not work.TemplateSyntaxError at/movies/detail/4/ 無法解析其餘部分：'[release.id] ['buttonURL']'from'releaseContext [release.id] ['buttonURL'] ' – Bwmat 2012-08-02 03:39:24

從你粘貼的東西看，它在引用中似乎仍然是錯誤的。它應該是'releaseContext ['release_id'] ['buttonURL']' – 2012-08-04 02:48:49

無法存取Django模板內的字典值

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