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main.py
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main.py
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#!/usr/bin/env python
#
# Copyright 2007 Google Inc.
#
# 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 webapp2
import jinja2
import os
from datetime import datetime
from django.utils import simplejson as json
DATE_FMT = "%Y-%m-%d %H:%M:%S"
jinja_environment = jinja2.Environment(
loader=jinja2.FileSystemLoader(os.path.dirname('__file__')
+ './templates'))
from google.appengine.api import users
from google.appengine.ext import db
from models import Greeting, guestbook_key
class MainPage(webapp2.RequestHandler):
def get(self, guestbook_name='stremor'):
# SELECT * FROM is a given when used in Model context
greetings = Greeting.gql("WHERE ANCESTOR IS :1 "
"ORDER BY date DESC LIMIT 10",
guestbook_key(guestbook_name))
user = users.get_current_user()
user_nick = ''
if user:
url = users.create_logout_url(self.request.uri)
url_linktext = 'Logout'
user_nick = user.nickname()
else:
url = users.create_login_url(self.request.uri)
url_linktext = 'Login'
template_values = {
'guestbook_name': guestbook_name,
'greetings': greetings,
'user_nick': user_nick,
'url_linktext': url_linktext,
'url': url
}
template = jinja_environment.get_template('index.html')
self.response.headers['Content-Type'] = 'text/html'
self.response.out.write(template.render(template_values))
class Guestbook(webapp2.RequestHandler):
def post(self):
guestbook_name = self.request.get('guestbook_name')
greeting = Greeting(parent=guestbook_key(guestbook_name))
if users.get_current_user():
greeting.author = users.get_current_user().nickname()
greeting.content = self.request.get('content')
greeting.put()
# redirect to home page
self.redirect('/%s' % guestbook_name)
class GuestbookAPI(webapp2.RequestHandler):
def get(self):
guestbook = self.request.get('guestbook')
greetings = Greeting.gql("WHERE ANCESTOR IS :1 "
"ORDER BY date DESC LIMIT 10",
guestbook_key(guestbook))
# this ought to be a lot smarter
d = []
for greeting in greetings.fetch(10):
d.append({
'content': greeting.content,
'author': greeting.author,
'datetime': datetime.strftime(greeting.date, DATE_FMT)
})
self.response.headers['Content-Type'] = 'application/json'
self.response.out.write(json.dumps(d))
app = webapp2.WSGIApplication([
(r'/sign', Guestbook),
(r'/api/greetings.json', GuestbookAPI),
(r'/([\w_]+)', MainPage)
], debug=True)