Question

I’m a newbie to app engine and python and am just trying to get a basic idea for how things work.

I have a simple app, with one mapped url (/). All the classes I’m trying to use are in the base directory of the app.

This is my main.py – all i want to do is use the middleware class to pass a variable to the template so I can render different parts of the page depending on device type.

import webapp2
import jinja2
import os
from useragents import search_strings

jinja_environment = jinja2.Environment(
    loader=jinja2.FileSystemLoader(os.path.dirname(__file__)))

class MainPage(webapp2.RequestHandler):
    def get(self):

    template = jinja_environment.get_template('templates/index.html')
    self.response.out.write(template.render())

app = webapp2.WSGIApplication([('/', MainPage)],
                          debug=True)


class Middleware(object):
@staticmethod
def process_request(request):
    """Adds a "mobile" attribute to the request which is True or False
       depending on whether the request should be considered to come from a
       small-screen device such as a phone or a PDA


    //rest of class is [here][1]
    """

Answer 1

import webapp2
import jinja2
import os
from useragents import search_strings

jinja_environment = jinja2.Environment(
    loader=jinja2.FileSystemLoader(os.path.dirname(__file__)))

class MainPage(webapp2.RequestHandler):
    def get(self):
    #i don't know if you want to overwrite self.request but here it is
    self.request = Middleware.process_request(self.request)
    template = jinja_environment.get_template('templates/index.html')
    self.response.out.write(template.render())

app = webapp2.WSGIApplication([('/', MainPage)],
                          debug=True)


class Middleware(object):
@staticmethod
def process_request(request):
    """Adds a "mobile" attribute to the request which is True or False
       depending on whether the request should be considered to come from a
       small-screen device such as a phone or a PDA


    //rest of class is [here][1]
    """