Question

我有一个表单通过POST方法将数据发送到视图。我的问题是我无法在deleteview中访问表单的帖子数据。删除歌曲后，我希望将用户发送回歌曲所属的专辑详细信息页面。我的代码如下所示：

表格（在album_detail.html内）：

<form action="{% url  'music:delete-song' pk=song.pk album_id=song.album_id %}" method="POST">
    {% csrf_token %}
<input type="hidden" name="album_id" value="{{ song.album_id }}" />
<button type="submit" class="btn btn-danger btn-xs" role="button">Delete</button>
</form>

urls.py:

#----
app_name = 'music'
urlpatterns = [
   #----
   url(r'^album/(?P<pk>[0-9]+)/detail/$', views.AlbumDetail.as_view(), name='album-detail'),
   url(r'^song/(?P<pk>[0-9]+)/delete/(?P<album_id>[0-9]+)/$', views.SongDelete.as_view(), name='delete-song'),
]

最后是观点：

class SongDelete(DeleteView):
    model = Song
    album_id = request.POST.get('album_id')
    success_url = reverse_lazy('music:album-detail', kwargs={'pk': album_id})

无法像上面那样设置album_id。如何将album_id设置为表单中的发布数据album_id，以便将用户发送回相册详细信息URL？

Answer 1

您必须覆盖delete() and get_success_url()

def delete(self, request, *args, **kwargs):
    self.object = self.get_object()
    self.album = self.object.album # assuming that song have a foreignkey reference to album model 
    self.object.delete()
    success_url = self.get_success_url() 
    return HttpResponseRedirect(success_url)


def get_success_url(self):
    album = self.album    
    return reverse( 
        'music:album-detail', 
         kwargs={'pk': album.id}
        )

success_url is obtained from get_success_url()方法，该方法从delete()调用。而不是反向调用你可以做类似的事情

def get_success_url(self):
    return `/album/details/' + str(self.album.id)

使其更简单。或者你可以在delete方法中提供redirect_url目录。

def delete(self, request, *args, **kwargs):
    self.object = self.get_object()
    self.album = self.object.album # assuming that song have a foreignkey reference to album model 
    self.object.delete()
    return HttpResponseRedirect('/album/details/' + str(self.album.id))

请参阅this link以获取有关基于班级的观点的帮助

Answer 2

通过实施您的观点get_success_url当然：

def get_success_url(self):
    album_id = self.request.POST.get('album_id')  # Do something else if it's missing?
    return reverse(  # no need for lazy here
        'music:album-detail', 
         kwargs={'pk': album_id}
    )

Django：如何在删除视图中使用request.POST

2 个答案: