django URL映射？

Question

django和python的新手。嘗試獲取一些示例日曆代碼並運行，但遇到URL映射問題。當我嘗試運行管理頁面（或頁面），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 

，這裏是我的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，雖然，因爲它似乎對我來說，函數「main」確實存在於views.py中，如下所示。任何幫助是極大的讚賞：

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

該錯誤消息告訴您main功能不會在cal模塊中存在 - 這是正確的，它存在於cal.views模塊中。

如果你改變你的網址格式如下，它應該工作：

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

我註釋掉上述r"" URL，因爲它是一個包羅萬象的URL。它出現在登錄網址的圖案上方，因此您的main視圖正在處理日誌網址/accounts/login/。 main視圖使用裝飾器login_required，導致重定向循環。

Answer 2

Alasdair的回答是正確的。 我只想從增加獎金：https://docs.djangoproject.com/en/1.3/intro/tutorial03/#simplifying-the-urlconfs

你可以聲明這樣說您更方便的:)：

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