django - django的url模板标签(和reverse()函数)的问题

Question

我在activities.views中有以下 View 函数:

def activity_thumbnail(request, id):
  pass

我正在尝试在我的模板之一中获取该 View 的 URL。 当我尝试以下操作时:

{% url activities.views.activity_thumbnail latest_activity.id %}

我收到以下错误:

Caught an exception while rendering: Reverse for '' with arguments '(449L,)' and keyword arguments '{}' not found.

当我尝试以下操作时，我遇到了同样类型的错误:

{% url activities.views.activity_thumbnail request,latest_activity.id %}

当我尝试命名参数时:

{% url activities.views.activity_thumbnail id=r.latest_activity.key.id %}

我得到:

Caught an exception while rendering: Reverse for '' with arguments '()' and keyword arguments '{'id': 449L}' not found.

我做错了什么？

Answer 1

您没有在urls.py中定义activity_thumbnail

urls.py:

from views import activity_thumbnail
urlpatterns = patterns('',
    url('^activity_thumbnail/$', activity_thumbnail, name='activity_thumbnail')
)

这可能看起来有点多余，但它让您可以更自由地将 View 映射到 URL。