django URL映射？

Question

django和python的新手。尝试获取一些示例日历代码并运行，但遇到URL映射问题。当我尝试运行管理页面（或页面），我得到：

ViewDoesNotExist at/

Tried main in module cal. Error was: 'module' object has no attribute 'main' 

Request Method:  GET 
Request URL: http://127.0.0.1:8000/ 
Django Version:  1.3.1 
Exception Type:  ViewDoesNotExist 

，这里是我的URL模式：

(r"^(\d+)/$", "main"), 
(r"", "main"), 
url(r'^admin/doc/', include('django.contrib.admindocs.urls')), 
url(r'^admin/', include(admin.site.urls)), 

我很困惑，虽然，因为它似乎对我来说，函数“main”确实存在于views.py中，如下所示。任何帮助是极大的赞赏：

import time 
from django.contrib.auth.decorators import login_required 
from django.http import HttpResponseRedirect, HttpResponse 
from django.shortcuts import get_object_or_404, render_to_response 

from dbe.cal.models import * 

mnames = "January February March April May June July August September October November December" 
mnames = mnames.split() 


@login_required 
def main(request, year=None): 
"""Main listing, years and months; three years per page.""" 
# prev/next years 
if year: year = int(year) 
else: year = time.localtime()[0] 

nowy, nowm = time.localtime()[:2] 
lst = [] 

# create a list of months for each year, indicating ones that contain entries and current 
for y in [year, year+1, year+2]: 
    mlst = [] 
    for n, month in enumerate(mnames): 
     entry = current = False # are there entry(s) for this month; current month? 
     entries = Entry.objects.filter(date__year=y, date__month=n+1) 

     if entries: 
      entry = True 
     if y == nowy and n+1 == nowm: 
      current = True 
     mlst.append(dict(n=n+1, name=month, entry=entry, current=current)) 
    lst.append((y, mlst)) 

return render_to_response("cal/main.html", dict(years=lst, user=request.user, year=year, 
               reminders=reminders(request))) 

Answer 1

该错误消息告诉您main功能不会在cal模块中存在 - 这是正确的，它存在于cal.views模块中。

如果你改变你的网址格式如下，它应该工作：

(r"^(\d+)/$", "cal.views.main"), 
# (r"", "cal.views.main"), 

我注释掉上述r"" URL，因为它是一个包罗万象的URL。它出现在登录网址的图案上方，因此您的main视图正在处理日志网址/accounts/login/。 main视图使用装饰器login_required，导致重定向循环。

Answer 2

Alasdair的回答是正确的。 我只想从增加奖金：https://docs.djangoproject.com/en/1.3/intro/tutorial03/#simplifying-the-urlconfs

你可以声明这样说您更方便的:)：

urlpatterns = patterns('cal.views', 
         (r'^(\d+)/$', 'main'), 
         (r'', 'main'), 
)