Python Django URLconf：在保留URL'的同时重定向；s查询部分和unicode

通常情况下，URLconf中的重定向如下所示：

from django.views.generic.simple import redirect_to

urlpatterns = patterns('django.views.generic.simple',
    (ur'^old/$', 'redirect_to', {'url': ur'/new/', 'permanent': False}),
)

此外，我需要获取查询以保持原位（

domain.com/old/？p=0

=>

domain.com/new/？p=0

）

我是这样做的：

from django.views.generic.simple import redirect_to

urlpatterns = patterns('django.views.generic.simple',
    (ur'^old/$', lambda request, url, permanent: redirect_to(request = request, url = url + (request.META['QUERY_STRING'] and ('?'+request.META['QUERY_STRING'])), permanent = permanent), {'url': ur'/new/', 'permanent': False}),
)

而且效果很好

继续命名正则表达式组：

from django.views.generic.simple import redirect_to

urlpatterns = patterns('django.views.generic.simple',
    (ur'^old/(?P<id>\d+)/$', lambda request, url, permanent, id: redirect_to(request = request, url = url + (request.META['QUERY_STRING'] and ('?'+request.META['QUERY_STRING'])), permanent = permanent, id = id), {'url': ur'/new/%(id)s/', 'permanent': False}),
)

---

URL“百分比编码”中的“Orléans”是“Orl%C3%A9ans”：

因此，

redirect_to

falls试图解析这个“%”

解决方案是解码查询字符串以除去“%”，例如使用

urllib2.unquote

因此，最终的代码是：

from django.views.generic.simple import redirect_to
from urllib2 import unquote

urlpatterns = patterns('django.views.generic.simple',
    (ur'^old/(?P<id>\d+)/$', lambda request, url, permanent, id: redirect_to(request = request, url = url + (request.META['QUERY_STRING'] and ('?'+unquote(request.META['QUERY_STRING']).decode("utf8"))), permanent = permanent, id = id), {'url': ur'/new/%(id)s/', 'permanent': False}),
)

从django.views.generic.simple import重定向到
从urllib2导入unquote
urlpatterns=patterns（'django.views.generic.simple'，
（ur“^old/（？P\d+）/$”，lambda请求，url，permanent，id:redirect_to（request=request，url=url+（request.META['QUERY\u STRING']和（“？”+unquote（request.META['QUERY\u STRING']），permanent=permanent，id=id），{url:ur'/new/%（id）s/'，'permanent'：False}），
)

有人能让它看起来更好吗？：）

更新

另一种解决方案在以下章节中提到：

因为关键字插值总是完成的（即使没有传入任何参数），所以URL中的任何“%”字符都必须写为“%%”，以便Python将它们转换为单百分比登录输出

更新

自Django 1.3以来，有一个内置的基于类的视图，可以轻松完成所有工作

from django.views.generic.simple import redirect_to
from urllib2 import unquote

urlpatterns = patterns('django.views.generic.simple',
    (ur'^old/(?P<id>\d+)/$', lambda request, url, permanent, id: redirect_to(request = request, url = url + (request.META['QUERY_STRING'] and ('?'+unquote(request.META['QUERY_STRING']).decode("utf8"))), permanent = permanent, id = id), {'url': ur'/new/%(id)s/', 'permanent': False}),
)