django cache not working as expected - django

Question

I'd like to add simple cache functionality to my site. I have enabled cache for anonymous users, but it does not work as expected. I'm using memcached.
settings.py
########################### caching #################################
CACHE_PORT = '11211'
CACHE_MIDDLEWARE_SECONDS = 60
CACHE_MIDDLEWARE_KEY_PREFIX = "default"
CACHE_MIDDLEWARE_ANONYMOUS_ONLY = True
# Production Environment
if ON_OPENSHIFT:
CACHES = {
'default': {
'BACKEND': 'django.core.cache.backends.memcached.MemcachedCache',
'LOCATION': '%s:%s' % (os.environ['OPENSHIFT_INTERNAL_IP'], CACHE_PORT),
}
}
CACHE_VIEW_LENGTH = datetime.now() + timedelta(30) # 30 day cache expiration
# Development Environment
else:
CACHES = {
'default': {
'BACKEND': 'django.core.cache.backends.memcached.MemcachedCache',
'LOCATION': '127.0.0.1:%s' % CACHE_PORT,
}
}
CACHE_VIEW_LENGTH = datetime.now() + timedelta(1) # Set to 0 for development
MIDDLEWARE_CLASSES = (
#cache - must be first in middleware_classes
'django.middleware.cache.UpdateCacheMiddleware',
#cache end
'django.middleware.common.CommonMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
# Uncomment the next line for simple clickjacking protection:
'django.middleware.clickjacking.XFrameOptionsMiddleware',
#cache - must be last in middleware_classes
'django.middleware.cache.FetchFromCacheMiddleware',
#cache end
)
Since I have set CACHE_MIDDLEWARE_ANONYMOUS_ONLY = True, I would except that if I load page as logged in user, I would not get cached version.
I loaded index page where is list of my objects. There are 10 objects. I added new object through form. When I checked on my index page again, I see only 10 objects.
So my question is simple: Why is django ignoring my setting for anonymous only and caches pages for logged in users?

Answer 1

CACHE_MIDDLEWARE_ANONYMOUS_ONLY option was removed in Django 1.8. Here is the ticket about that: https://code.djangoproject.com/ticket/15201
When CACHE_MIDDLEWARE_ANONYMOUS_ONLY was working, it was only about writing to cache. When CACHE_MIDDLEWARE_ANONYMOUS_ONLY is True, non-anonymous request never writes to cache, but reads from cache.