Django视图函数通过URL进行分支选择

 # views.py

from django.http import Http404, HttpResponseRedirect

from django.shortcuts import render_to_response

def method_splitter(request, GET=None, POST=None):

    if request.method == 'GET' and GET is not None:

        return

  GET(request) #此处其实是return一个视图函数views.some_pages_get

 elif request.method == 'POST' and POST is not None:

        return

  POST(request) #此处其实是return一个视图函数views.some_pages_post

 raise Http404

def some_page_get(request):

    assert request.method == 'GET'

    do_something_for_get()

    return render_to_response('page.html')

def some_page_post(request):

    assert request.method == 'POST'

    do_something_for_post()

    return HttpResponseRedirect('/someurl/')

# urls.py

from django.conf.urls.defaults import *

from mysite import views

urlpatterns = patterns('',

    # ...

    (r'^somepage/$', views.method_splitter, {'GET': views.some_page_get, 'POST': 

views.some_page_post}),

    # ...

)

Python中有个有意思的事情就是：

def foobar(): pass

foo = foobar

那么foo()实际就是foobar()