如何在cherrypy中获取对象的url?
我对CherryPy是新手。我使用的是默认的dispatcher,URL结构类似于:如何在cherrypy中获取对象的url?,url,reverse,cherrypy,dispatcher,Url,Reverse,Cherrypy,Dispatcher,我对CherryPy是新手。我使用的是默认的dispatcher,URL结构类似于: root = Root() root.page1 = Page1() root.page1.apple = Apple() root.page2 = Page2() root.page2.orange = Orange() Orange呈现一个模板,我需要一个指向Apple的链接。我可以硬编码/page1/apple/。但是我怎样才能干净利落地获取苹果的URL呢 这可以通过CherryPy中的默认dispat
root = Root()
root.page1 = Page1()
root.page1.apple = Apple()
root.page2 = Page2()
root.page2.orange = Orange()
Orange
呈现一个模板,我需要一个指向Apple
的链接。我可以硬编码/page1/apple/
。但是我怎样才能干净利落地获取苹果的URL呢
这可以通过CherryPy中的默认dispatcher实现,还是仅通过Routes dispatcher实现
(我来自Django世界,人们可以在那里使用它。)您可以通过
cherrypy.tree.apps[mount_point].root
root
始终是装载点的装载实例。因此,反向函数看起来像:
def reverse(cls):
# get link to a class type
for app_url in cherrypy.tree.apps.keys():
if isinstance(cherrypy.tree.apps[app_url].root, cls):
# NOTE: it will return with the first mount point of this class
return app_url
请在下面找到使用您的类的示例代码<代码>http://localhost:8080/page4/orange/打印出{Orange和苹果的链接:“/page3/apple”}
import cherrypy
link_to_apple_global = ''
class Orange(object):
def __init__(self):
pass
@cherrypy.expose
@cherrypy.tools.json_out()
def index(self):
return {"Orange and the link to apple: ": link_to_apple_global}
class Page2(object):
def __init__(self):
pass
@cherrypy.expose
def index(self):
return "Page2"
class Apple(object):
def __init__(self):
pass
@cherrypy.expose
def index(self):
return "Apple"
class Page1(object):
def __init__(self):
pass
@cherrypy.expose
def index(self):
return "Page1"
class Root(object):
def __init__(self):
pass
@cherrypy.expose
def index(self):
return "Root"
def reverse(cls):
#return cherrypy.tree.apps.keys()
#return dir(cherrypy.tree.apps[''].root)
#return dir(cherrypy.tree.apps['/page3/apple'].root)
# get link to apple
for app_url in cherrypy.tree.apps.keys():
if isinstance(cherrypy.tree.apps[app_url].root, cls):
# NOTE: it will return with the first instance
return app_url
root = Root()
root.page1 = Page1()
root.page1.apple = Apple()
root.page2 = Page2()
root.page2.orange = Orange()
cherrypy.tree.mount(root, '/')
# if you do not specify the mount points you can find the objects
# in cherrypy.tree.apps[''].root...
cherrypy.tree.mount(root.page1, '/page4')
cherrypy.tree.mount(root.page2, '/page3')
cherrypy.tree.mount(root.page2.orange, '/page4/orange')
cherrypy.tree.mount(root.page1.apple, '/page3/apple')
link_to_apple_global = reverse(Apple)
cherrypy.engine.start()
cherrypy.engine.block()