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#!/usr/bin/env python
#
# Example on using tornado.redisdb available http://github.com/beshrkayali/tornado/blob/master/tornado/redisdb.py
# Copyright 2010 Beshr Kayali
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import tornado.httpserver
import tornado.ioloop
import tornado.options
import tornado.web
import tornado.redisdb
from tornado.options import define, options
define("port", default=8050, help="run on the given port", type=int)
define("redis_host", default="127.0.0.1", help="redis host")
define("redis_port", default=6379, help="redis port")
define("redis_db", default=0, help="redis db")
class BasicHandler(tornado.web.RequestHandler):
@property
def db(self):
return self.application.db
class MainHandler(BasicHandler):
def get(self):
if self.db.redis.lrange("saved_names",0,-1):
saved_names = "<ul>"
for name in self.db.redis.lrange("saved_names",0,-1):
saved_names += "<li>%s</li>" % name
saved_names += "</ul>"
else:
saved_names = "Add yours!"
self.write('<html><body><form action="/" method="post">'
'Name: <input type="text" name="name"> '
'<input type="submit" value="Submit">'
'</form><p>Saved Names: %s</p></body></html>' % saved_names)
def post(self):
self.set_header("Content-Type", "text/plain")
self.db.redis.rpush("saved_names", self.get_argument("name"))
self.redirect("/")
class Application(tornado.web.Application):
def __init__(self):
handlers = [
(r"/", MainHandler),
]
settings = dict()
tornado.web.Application.__init__(self, handlers, **settings)
# Have one global connection to the redis db
self.db = tornado.redisdb.Connection(host = options.redis_host,
port = options.redis_port,
db = options.redis_db)
def main():
tornado.options.parse_command_line()
http_server = tornado.httpserver.HTTPServer(Application())
http_server.listen(options.port)
tornado.ioloop.IOLoop.instance().start()
if __name__ == "__main__":
main()
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