使用url_helper简化Python中Django框架的url配置教程

from url_helper import execute, url_
import views
 
urlpatterns += patterns('',
  url(r'^("htmlcode">

#/edit/4/
 
def edit(request, n="id"):
  html = """ edit object: %s""" % n
  return HttpResponse(html)



在没有指定action的时候默认使用的action为index。

提供函数url_简化url配置
仿照ROR的做法，参数用”:”标识。
例如：

 




#url_(r'/space/:username/:tag/', views.url_), 
#/space/vicalloy/just/
 
def url_(request, username, tag):
  html = """ username: %s <br/> tag: %s""" % (username, tag)
  return HttpResponse(html)



url_helper的完整代码
就如前面说的，代码非常少。不过实际应用的话，应当还需要做一些扩展。
 




#!/usr/bin/env python
# -*- coding: UTF-8 -*-
from django import http
from django.conf.urls.defaults import url
import re
 
def execute(request, urls, views):
  """
  urls [methodName/]param1/param2/.../
  methodName default index
  """
  def get_method(views, methodName):
    try:
      return getattr(views, methodName)
    except Exception, e:
      return None
  method = None
  params = [e for e in urls.split("/") if e]
  params.reverse()
  if params:
    method = get_method(views, params.pop())
  if not method:
    method = get_method(views, 'index')
  if not method:
    raise http.Http404('The requested admin page does not exist.')
  return method(request, *params)
 
def url_(*args,**dic):
  regex = args[0]
  if regex[0] == "/":
    regex = regex[1:]
  regex = '^' + regex
  regex = regex + '$'
  regex = re.sub(":[^/]+",
      lambda matchobj: "(" % matchobj.group(0)[1:],
      regex)
  return url(regex, *args[1:], **dic)