Access request in django custom template tags

Question

My code in myapp_extras.py:

from django import template  register = template.Library()  @register.inclusion_tag('new/userinfo.html') def address():     address = request.session['address']     return {'address':address} 

in 'settings.py':

TEMPLATE_CONTEXT_PROCESSORS =(     "django.core.context_processors.auth",     "django.core.context_processors.debug",     "django.core.context_processors.i18n",     "django.core.context_processors.media",     'django.core.context_processors.request' ) 

but I got an error:

TemplateSyntaxError at /items/  Caught an exception while rendering: global name 'request' is not defined  Original Traceback (most recent call last):   File "C:\Python25\lib\site-packages\django\template\debug.py", line 71, in render_node     result = node.render(context)   File "C:\Python25\lib\site-packages\django\template\__init__.py", line 915, in render     dict = func(*args)   File "C:\p4\projects\myproject\..\myproject\invoice\templatetags\myapp_extras.py", line 9, in address     address = request.session['address'] NameError: global name 'request' is not defined 

I referenced this one In Django, is it possible to access the current user session from within a custom tag?.

Answer 1

request is not a variable in that scope. You will have to get it from the context first. Pass takes_context to the decorator and add context to the tag arguments.

Like this:

@register.inclusion_tag('new/userinfo.html', takes_context=True) def address(context):     request = context['request']     address = request.session['address']     return {'address':address} 

Answer 2

I've tried solution from above (from Ignacio Vazquez-Abrams) and it actually didn't work until I've found out that context processors works only with RequestContext wrapper class.

So in main view method you should add the following line:

from django.template import RequestContext         return render_to_response('index.html', {'form': form, },                                context_instance = RequestContext(request))