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81 lines
2.1 KiB
81 lines
2.1 KiB
6 years ago
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"""
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Tutorial - Object inheritance
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You are free to derive your request handler classes from any base
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class you wish. In most real-world applications, you will probably
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want to create a central base class used for all your pages, which takes
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care of things like printing a common page header and footer.
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"""
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import os.path
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import cherrypy
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class Page:
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# Store the page title in a class attribute
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title = 'Untitled Page'
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def header(self):
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return '''
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<html>
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<head>
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<title>%s</title>
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<head>
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<body>
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<h2>%s</h2>
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''' % (self.title, self.title)
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def footer(self):
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return '''
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</body>
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</html>
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'''
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# Note that header and footer don't get their exposed attributes
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# set to True. This isn't necessary since the user isn't supposed
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# to call header or footer directly; instead, we'll call them from
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# within the actually exposed handler methods defined in this
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# class' subclasses.
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class HomePage(Page):
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# Different title for this page
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title = 'Tutorial 5'
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def __init__(self):
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# create a subpage
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self.another = AnotherPage()
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@cherrypy.expose
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def index(self):
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# Note that we call the header and footer methods inherited
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# from the Page class!
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return self.header() + '''
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<p>
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Isn't this exciting? There's
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<a href="./another/">another page</a>, too!
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</p>
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''' + self.footer()
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class AnotherPage(Page):
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title = 'Another Page'
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@cherrypy.expose
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def index(self):
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return self.header() + '''
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<p>
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And this is the amazing second page!
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</p>
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''' + self.footer()
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tutconf = os.path.join(os.path.dirname(__file__), 'tutorial.conf')
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if __name__ == '__main__':
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# CherryPy always starts with app.root when trying to map request URIs
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# to objects, so we need to mount a request handler root. A request
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# to '/' will be mapped to HelloWorld().index().
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cherrypy.quickstart(HomePage(), config=tutconf)
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