-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathhelloworld.py
72 lines (57 loc) · 2.39 KB
/
helloworld.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
import jinja2
import os
jinja_environment = jinja2.Environment(
loader=jinja2.FileSystemLoader(os.path.dirname(__file__)))
import cgi
import datetime
import urllib
import webapp2
from google.appengine.ext import db
from google.appengine.api import users
class Greeting(db.Model):
"""Models an individual Guestbook entry with an author, content and date."""
author = db.StringProperty()
content = db.StringProperty(multiline=True)
date = db.DateTimeProperty(auto_now_add=True)
def guestbook_key(guestbook_name=None):
"""
Constructs a Datastore key for a Guestbook entity with guestbook_name.
"""
# From the from_path help text: 'Guestbook' is the "kind" of the key and
# guestbook_name is the "name". If guestbook_name were an int, it would be
# the "id". These can be retrieved from the key by the .kind(), .name() and
# .id() methods.
return db.Key.from_path('Guestbook', guestbook_name or 'default_guestbook')
class MainPage(webapp2.RequestHandler):
def get(self):
self.response.out.write('<html><body>')
guestbook_name = self.request.get('guestbook_name')
greeting_query = Greeting.all().ancestor(
guestbook_key(guestbook_name)).order('-date')
greetings = greeting_query.fetch(10)
if users.get_current_user():
url = users.create_logout_url(self.request.uri)
url_linktext = 'Logout'
else:
url = users.create_login_url(self.request.uri)
url_linktext = 'Login'
template_values = {
'greetings': greetings,
'url': url,
'url_linktext': url_linktext
}
template = jinja_environment.get_template('index.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()
self.redirect('/?' + urllib.urlencode({'guestbook_name':
guestbook_name}))
app = webapp2.WSGIApplication([('/', MainPage),
('/sign', Guestbook)],
debug=True)