想要隐藏错误消息(视图)

Question

我在Album Model中匹配name。它工作得很好。但有时它并不匹配。并提示错误信息Album matching query does not exist。我想知道是否没有找到匹配。然后不要显示任何错误消息。这可能吗?由于

   def movie_details(request,slug):
    movies = get_object_or_404(Movie,slug=slug)
    # calculating wikipedia directory structer for images
    #image_name = movies.image
    name = movies.title
    album_name = Album.objects.get(name__exact=name)
    album_id = album_name.id
    song_list = Song.objects.filter(album=album_id)
    #image_path = generateWikiImage(image_name)
    #
    return render_to_response('base_movies.html',locals(),
                              context_instance=RequestContext(request)
                              )

错误消息

Album matching query does not exist

更新:

def movie_details(request,slug):
movies = get_object_or_404(Movie,slug=slug)
# calculating wikipedia directory structer for images
#image_name = movies.image
name = movies.title
try:
    album_name = Album.objects.get(name__exact=name)
    album_id = album_name.id
    song_list = Song.objects.filter(album=album_id)
except:
    pass

谢谢F.C.

Answer 1

正如上面的评论所建议的，您需要捕获所引发的异常。在你的例子中，它应该是:

try:
    album_name = Album.objects.get(name__exact=name)
except Album.DoesNotExist:
    pass

如果您想将album_name设置为某个默认值，如果您找不到它，请将pass替换为代码以将其设置为默认值。

(这个StackOverflow帖子也处理类似的问题)