adding cache to the environment. Adding cached output and session to the app

Author: CawaMS

azureproject/production.py

@@ -22,6 +22,7 @@
     'django.middleware.clickjacking.XFrameOptionsMiddleware',
 ]
 
+SESSION_ENGINE = "django.contrib.sessions.backends.cache"
 STATICFILES_STORAGE = 'whitenoise.storage.CompressedManifestStaticFilesStorage'
 STATIC_ROOT = os.path.join(BASE_DIR, 'staticfiles')
 

azureproject/settings.py

@@ -53,6 +53,7 @@
     'django.middleware.clickjacking.XFrameOptionsMiddleware',
 ]
 
+SESSION_ENGINE = "django.contrib.sessions.backends.cache"
 ROOT_URLCONF = 'azureproject.urls'
 
 TEMPLATES = [

infra/resources.bicep

@@ -185,6 +185,8 @@ resource web 'Microsoft.Web/sites@2022-03-01' = {
       SCM_DO_BUILD_DURING_DEPLOYMENT: 'true'
       SECRET_KEY: secretKey
       //TODO: add settings for Redis Cache
+      CACHELOCATION: 'rediss://${redisCache.name}.redis.cache.windows.net:6380/0'
+      CACHEKEY: redisCache.listKeys().primaryKey
     }
   }
 

requirements.txt

@@ -1,4 +1,5 @@
 Django==4.2.5
 psycopg2-binary==2.9.7
 python-dotenv==1.0.0
-whitenoise==6.5.0
+whitenoise==6.5.0
+django-redis==5.3.0

restaurant_review/templates/restaurant_review/index.html

@@ -42,6 +42,9 @@
   </style>
 {% endblock %}
 {% block content %}
+  {% if LastViewedRestaurant %}
+      <h3>Last viewed restaurant: {{ LastViewedRestaurant }}</h3>
+  {% endif %}
   <h1>Restaurants</h1>
 
   {% if restaurants %}

restaurant_review/views.py

@@ -10,16 +10,18 @@
 
 # Create your views here.
 
-@cache_page(60)
 def index(request):
     print('Request for index page received')
     restaurants = Restaurant.objects.annotate(avg_rating=Avg('review__rating')).annotate(review_count=Count('review'))
-    return render(request, 'restaurant_review/index.html', {'restaurants': restaurants})
-
+    lastViewedRestaurant = request.session.get("lastViewedRestaurant", False)
+    print(lastViewedRestaurant)
+    return render(request, 'restaurant_review/index.html', {'LastViewedRestaurant': lastViewedRestaurant, 'restaurants': restaurants})
 
+@cache_page(60)
 def details(request, id):
     print('Request for restaurant details page received')
     restaurant = get_object_or_404(Restaurant, pk=id)
+    request.session["lastViewedRestaurant"] = restaurant.name
     return render(request, 'restaurant_review/details.html', {'restaurant': restaurant})