thirdparty/google_appengine/demos/guestbook/guestbook.py
author Pawel Solyga <Pawel.Solyga@gmail.com>
Mon, 28 Sep 2009 12:22:26 +0200
changeset 2987 db28a7db5cc6
parent 109 620f9b141567
permissions -rwxr-xr-x
Set new Melange version number to 0-5-20090928 in app.yaml.template.
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#!/usr/bin/env python
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#
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# Copyright 2007 Google Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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#     http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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import cgi
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import datetime
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import wsgiref.handlers
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from google.appengine.ext import db
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from google.appengine.api import users
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from google.appengine.ext import webapp
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class Greeting(db.Model):
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  author = db.UserProperty()
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  content = db.StringProperty(multiline=True)
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  date = db.DateTimeProperty(auto_now_add=True)
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class MainPage(webapp.RequestHandler):
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  def get(self):
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    self.response.out.write('<html><body>')
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    greetings = db.GqlQuery("SELECT * "
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                            "FROM Greeting "
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                            "ORDER BY date DESC LIMIT 10")
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    for greeting in greetings:
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      if greeting.author:
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        self.response.out.write('<b>%s</b> wrote:' % greeting.author.nickname())
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      else:
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        self.response.out.write('An anonymous person wrote:')
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      self.response.out.write('<blockquote>%s</blockquote>' %
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                              cgi.escape(greeting.content))
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    self.response.out.write("""
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          <form action="/sign" method="post">
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            <div><textarea name="content" rows="3" cols="60"></textarea></div>
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            <div><input type="submit" value="Sign Guestbook"></div>
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          </form>
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        </body>
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      </html>""")
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class Guestbook(webapp.RequestHandler):
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  def post(self):
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    greeting = Greeting()
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    if users.get_current_user():
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      greeting.author = users.get_current_user()
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    greeting.content = self.request.get('content')
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    greeting.put()
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    self.redirect('/')
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application = webapp.WSGIApplication([
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  ('/', MainPage),
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  ('/sign', Guestbook)
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], debug=True)
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def main():
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  wsgiref.handlers.CGIHandler().run(application)
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if __name__ == '__main__':
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  main()