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Diffstat (limited to 'cherrypy/tutorial/tut04_complex_site.py')
-rwxr-xr-x | cherrypy/tutorial/tut04_complex_site.py | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/cherrypy/tutorial/tut04_complex_site.py b/cherrypy/tutorial/tut04_complex_site.py new file mode 100755 index 0000000..b4d820e --- /dev/null +++ b/cherrypy/tutorial/tut04_complex_site.py @@ -0,0 +1,98 @@ +""" +Tutorial - Multiple objects + +This tutorial shows you how to create a site structure through multiple +possibly nested request handler objects. +""" + +import cherrypy + + +class HomePage: + def index(self): + return ''' + <p>Hi, this is the home page! Check out the other + fun stuff on this site:</p> + + <ul> + <li><a href="/joke/">A silly joke</a></li> + <li><a href="/links/">Useful links</a></li> + </ul>''' + index.exposed = True + + +class JokePage: + def index(self): + return ''' + <p>"In Python, how do you create a string of random + characters?" -- "Read a Perl file!"</p> + <p>[<a href="../">Return</a>]</p>''' + index.exposed = True + + +class LinksPage: + def __init__(self): + # Request handler objects can create their own nested request + # handler objects. Simply create them inside their __init__ + # methods! + self.extra = ExtraLinksPage() + + def index(self): + # Note the way we link to the extra links page (and back). + # As you can see, this object doesn't really care about its + # absolute position in the site tree, since we use relative + # links exclusively. + return ''' + <p>Here are some useful links:</p> + + <ul> + <li><a href="http://www.cherrypy.org">The CherryPy Homepage</a></li> + <li><a href="http://www.python.org">The Python Homepage</a></li> + </ul> + + <p>You can check out some extra useful + links <a href="./extra/">here</a>.</p> + + <p>[<a href="../">Return</a>]</p> + ''' + index.exposed = True + + +class ExtraLinksPage: + def index(self): + # Note the relative link back to the Links page! + return ''' + <p>Here are some extra useful links:</p> + + <ul> + <li><a href="http://del.icio.us">del.icio.us</a></li> + <li><a href="http://www.mornography.de">Hendrik's weblog</a></li> + </ul> + + <p>[<a href="../">Return to links page</a>]</p>''' + index.exposed = True + + +# Of course we can also mount request handler objects right here! +root = HomePage() +root.joke = JokePage() +root.links = LinksPage() + +# Remember, we don't need to mount ExtraLinksPage here, because +# LinksPage does that itself on initialization. In fact, there is +# no reason why you shouldn't let your root object take care of +# creating all contained request handler objects. + + +import os.path +tutconf = os.path.join(os.path.dirname(__file__), 'tutorial.conf') + +if __name__ == '__main__': + # CherryPy always starts with app.root when trying to map request URIs + # to objects, so we need to mount a request handler root. A request + # to '/' will be mapped to HelloWorld().index(). + cherrypy.quickstart(root, config=tutconf) +else: + # This branch is for the test suite; you can ignore it. + cherrypy.tree.mount(root, config=tutconf) + |