settings: enable caching via memcached

jdav_web/jdav_web/settings.py

@@ -71,6 +71,7 @@ INSTALLED_APPS = [
 ]
 
 MIDDLEWARE = [
+    'django.middleware.cache.UpdateCacheMiddleware',
     'jdav_web.middleware.ForceLangMiddleware',
     'django.middleware.security.SecurityMiddleware',
     'django.contrib.sessions.middleware.SessionMiddleware',
@@ -80,6 +81,7 @@ MIDDLEWARE = [
     'django.contrib.auth.middleware.AuthenticationMiddleware',
     'django.contrib.messages.middleware.MessageMiddleware',
     'django.middleware.clickjacking.XFrameOptionsMiddleware',
+    'django.middleware.cache.FetchFromCacheMiddleware',
 ]
 
 ROOT_URLCONF = 'jdav_web.urls'
@@ -117,6 +119,17 @@ DATABASES = {
     }
 }
 
+CACHES = {
+    'default': {
+        'BACKEND': 'django.core.cache.backends.memcached.PyMemcacheCache',
+        'LOCATION': '127.0.0.1:11211',
+    }
+}
+
+CACHE_MIDDLEWARE_ALIAS = 'default'
+CACHE_MIDDLEWARE_SECONDS = 120
+CACHE_MIDDLEWARE_KEY_PREFIX = ''
+
 
 # Password validation
 # https://docs.djangoproject.com/en/1.10/ref/settings/#auth-password-validators