See it in action here: http://eventvoting.appspot.com
The aim is that it runs immediately in the Google App Engine tool without extra work for the developer. Unzip, load it and its up and running. You have forms, datastore connection already there.
************************************************** START
import os
import logging
import cgi
import datetime
import wsgiref.handlers
from google.appengine.ext import webapp
from google.appengine.ext.webapp import template
from util.sessions import Session
from google.appengine.ext import db
from google.appengine.api import users
class Greeting(db.Model):
content = db.StringProperty(multiline=True)
date = db.DateTimeProperty(auto_now_add=True)
contact1 = db.StringProperty()
contact2 = db.StringProperty()
# DeveloperHandler start
class DeveloperHandler(webapp.RequestHandler):
def get(self): # fires when a form is action get or just an http call
adict = {"key one":"value one from DeveloperHandler Get ","key two":"value two from DeveloperHandler Get" }
ano1 = dict(adict)
greetings = db.GqlQuery("SELECT * "
"FROM Greeting "
"ORDER BY date DESC LIMIT 3")
Render(self, 'developer.htm', {'mytest':ano1, 'testmessage':'String passed from code-behind class DeveoperHandler Get','greetings' : greetings })
def post(self): # fires when a form is posted
greeting = Greeting()
if(self.request.get('content')):
greeting.content = self.request.get('content')
else:
greeting.content = ' test comment, bla bla bla '
if(self.request.get('contact1')):
greeting.contact1 = self.request.get('contact1')
else:
greeting.contact1 = ' test data..stuff...stuff.. '
greeting.contact2 = self.request.get('contact2')
greeting.put()
# self.redirect('/developer')
adict = {'This is a key':'This is a value from DeveloperHandler Post','this is another key':'and this is another value from DeveloperHandler Post' }
ano2 = dict(adict)
greetings = db.GqlQuery("SELECT * "
"FROM Greeting "
"ORDER BY date DESC LIMIT 3")
Render(self, 'developer.htm', {'mytest':ano2,'greetings' : greetings, 'testmessage':'String passed from code-behind class DeveloperHandler Post' })
# DeveloperHandler end
class User(db.Model):
account = db.StringProperty()
password = db.StringProperty()
logging.info(' checking if User fires or not ')
def Render(handler, tname = 'index.htm', values = { }):
temp = './templates/' + tname
if not os.path.isfile(temp):
return False
newval = dict(values)
newval['path'] = handler.request.path
# logging.info(' values are '+str(values))
handler.session = Session() # goes to session, invalidates and sets a new cookie if its new
if(new_cookie_set):
handler.response.headers.add_header("Set-Cookie", newcookie)
if 'username' in handler.session:
newval['username'] = handler.session['username']
handler.session['sessy'] = ' a test string in the session' # adding this for coder's interest
newval['sessy'] = handler.session['sessy']
outstr = template.render(temp, newval)
handler.response.out.write(outstr)
return True
class LoginHandler(webapp.RequestHandler):
def get(self):
Render(self, 'login.htm')
def post(self):
global x
x = self.request.cookies.get('my_session_id')
self.session = Session()
acct = self.request.get('account')
pw = self.request.get('password')
self.session.delete_item('username')
if pw == '' or acct == '':
Render(
self,
'login.htm',
{'error' : 'Please specify Email and Password'} ) # written into login screen (django template)
return
que = db.Query(User)
que = que.filter('account =',acct.lower())
que = que.filter('password = ',pw)
results = que.fetch(limit=1)
if len(results) > 0 :
self.session['username'] = acct
dicty = {"My first key":"My first value from LoginHandler Post","My second key":"My second value from LoginHandler Post" }
ano3 = dict(dicty)
# self.redirect("developer.htm")
greetings = db.GqlQuery("SELECT * "
"FROM Greeting "
"ORDER BY date DESC LIMIT 3")
Render(self, 'developer.htm', {'greetings':greetings, 'mytest':ano3, 'testmessage':'String message passed from the code-behind class LoginHandler Post' })
else:
Render(
self,
'login.htm',
{'error' : 'Email or password incorrect'} )
class RegisterHandler(webapp.RequestHandler):
def get(self):
Render(self, 'register.htm')
def post(self):
global x
x = self.request.cookies.get('my_session_id')
self.session = Session()
acct = self.request.get('account')
pw = self.request.get('password')
if not "@" in acct:
Render(
self,
'register.htm',
{'error' : 'Email address not correct'} )
return
if not "." in acct:
Render(
self,
'register.htm',
{'error' : 'Email address not correct'} )
return
if len(acct) < 8:
Render(
self,
'register.htm',
{'error' : 'Email address not correct'} )
return
if pw == '' or acct == '':
Render(
self,
'register.htm',
{'error' : 'Please fill in all fields'} )
return
if len(pw)<3:
Render(
self,
'register.htm',
{'error' : 'Password needs to be longer'} )
return
# Check if the user exists
que = db.Query(User).filter('account =',acct.lower())
results = que.fetch(limit=1)
if len(results) > 0 :
Render(
self,
'register.htm',
{'error' : 'Account Already Exists'} )
return
newuser = User(account=acct.lower(), password=pw);
newuser.put();
self.session['username'] = acct
self.newdict = dict({"one":"valueoneRegisterHandler","two":"valuetwoRegisterHandler"})
# Render(self,'developer.htm',{ })
self.redirect('developer.htm')
class LogoutHandler(webapp.RequestHandler):
def get(self):
global x
x = self.request.cookies.get('my_session_id')
self.session = Session()
self.session.delete_item('username')
Render(self, 'login.htm')
class MainHandler(webapp.RequestHandler):
x = ' '
newcookie = 'StartValueMainHandler'
new_cookie_set = False
def get(self):
global new_cookie_set
global x
global newcookie
new_cookie_set = False
x = self.request.cookies.get('my_session_id')
newcookie = 'valueinMainHandler'
if Render(self,self.request.path) :
return
Render(self,'index.htm')
myapp = webapp.WSGIApplication([
('/login', LoginHandler),
('/register', RegisterHandler),
('/logout', LogoutHandler),
('/sign', DeveloperHandler),
('/developer', DeveloperHandler),
('/.*', MainHandler)],
debug=True)
****************************************************** END
Here is the developer page with live data in red from the code behind above:
ENJOY
