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how to insert some text in all django context using django middleware

this my middleware code :

from django.conf import settings
from django.template import RequestContext

class BeforeFilter(object):
    def process_request(self, request):
        settings.my_var = 'Hello World'
        request.ss = 'ssssssssss'
        return None
    def process_response(self, request, response):

        return response

this is the settings.py:

TEMPLATE_CONTEXT_PROCESSORS = (
    'django.core.context_processors.request',
)
MIDDLEWARE_CLASSES = (
    ...
    'middleware.BeforeFilter',
)

and the view is :

#coding:utf-8

from django.conf import settings
from django.shortcuts import render_to_response

from django.http import HttpResponse 
from django.template import RequestContext


def index(request):
    context = RequestContext(request)
    context['a'] = 'aaaa'
    return render_to_response('a.html',context)

the html is :

{{a}}fffff{{ss}}

but it not show {{ss}}:

aaaafffff 

so how do i show :

aaaafffffssssssss

how to insert some text in all django context using django middleware,

so that i cant use to insert the text everytime ,

thanks

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Answer

To meet your initial goal, I do not think the BeforeFilter middle ware is required. What we need is just a template context processor.

Write a context processor as following:

#file: context_processors.py

def sample_context_processor(request):
   return {'ss':'ssssssssss'} #or whatever you want to set to variable ss

then add the context processor to TEMPLATE_CONTEXT_PROCESSORS list

#file: settings.py 

TEMPLATE_CONTEXT_PROCESSORS = (
    'myproject.context_processors.sample_context_processor',
)
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