●プログラム・リスト●

#!/usr/bin/env python

from google.appengine.ext import webapp
from google.appengine.ext.webapp.util import run_wsgi_app
from google.appengine.ext import db
from django.utils import simplejson as json

class StoredData(db.Model):
  tag = db.StringProperty()
  value = db.StringProperty(multiline=True)
  date = db.DateTimeProperty(required=True, auto_now=True)

class StoreAValue(webapp.RequestHandler):

  def post(self):
    tag = self.request.get('tag')
    value = self.request.get('value')
    entry = db.GqlQuery("SELECT * FROM StoredData where tag = :1", tag).get()
    if entry:
      entry.value = value
    else: entry = StoredData(tag = tag, value = value)
    entry.put()
    result = ["STORED", tag, value]
    WritePhone(self, lambda : json.dump(result, self.response.out))

class GetValue(webapp.RequestHandler):

  def post(self):
    tag = self.request.get('tag')
    entry = db.GqlQuery("SELECT * FROM StoredData where tag = :1", tag).get()
    if entry:
      value = entry.value
    else:
      value = ""
    WritePhone(self, lambda : json.dump(["VALUE", tag, value], self.response.out))

def WritePhone(handler, writer):
  handler.response.headers['Content-Type'] = 'application/jsonrequest'
  writer()

application = webapp.WSGIApplication(
       [('/storeavalue', StoreAValue),
       ('/getvalue', GetValue)], debug=True)

def main():
  run_wsgi_app(application)

if __name__ == '__main__':
  main()