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Source code for django.template.context_processors

"""
A set of request processors that return dictionaries to be merged into a
template context. Each function takes the request object as its only parameter
and returns a dictionary to add to the context.

These are referenced from the 'context_processors' option of the configuration
of a DjangoTemplates backend and used by RequestContext.
"""

import itertools

from django.conf import settings
from django.middleware.csrf import get_token
from django.utils.functional import SimpleLazyObject, lazy


def csrf(request):
    """
    Context processor that provides a CSRF token, or the string 'NOTPROVIDED' if
    it has not been provided by either a view decorator or the middleware
    """
    def _get_val():
        token = get_token(request)
        if token is None:
            # In order to be able to provide debugging info in the
            # case of misconfiguration, we use a sentinel value
            # instead of returning an empty dict.
            return 'NOTPROVIDED'
        else:
            return token

    return {'csrf_token': SimpleLazyObject(_get_val)}


[docs]def debug(request): """ Return context variables helpful for debugging. """ context_extras = {} if settings.DEBUG and request.META.get('REMOTE_ADDR') in settings.INTERNAL_IPS: context_extras['debug'] = True from django.db import connections # Return a lazy reference that computes connection.queries on access, # to ensure it contains queries triggered after this function runs. context_extras['sql_queries'] = lazy( lambda: list(itertools.chain.from_iterable(connections[x].queries for x in connections)), list ) return context_extras
def i18n(request): from django.utils import translation return { 'LANGUAGES': settings.LANGUAGES, 'LANGUAGE_CODE': translation.get_language(), 'LANGUAGE_BIDI': translation.get_language_bidi(), }
[docs]def tz(request): from django.utils import timezone return {'TIME_ZONE': timezone.get_current_timezone_name()}
[docs]def static(request): """ Add static-related context variables to the context. """ return {'STATIC_URL': settings.STATIC_URL}
def media(request): """ Add media-related context variables to the context. """ return {'MEDIA_URL': settings.MEDIA_URL} def request(request): return {'request': request}
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