Cache framework configuration in Django - Mini Project: Build & Apply

Cache Framework Configuration in Django

📖 Scenario: You are building a Django web application that needs to speed up page loading by storing some data temporarily in cache. You will configure Django's cache framework step-by-step to use a simple in-memory cache backend.

🎯 Goal: Configure Django's cache framework by setting up the cache dictionary, adding a timeout value, applying the cache configuration in settings, and finally enabling caching for a view.

📋 What You'll Learn

Create a CACHES dictionary with a default backend

Add a TIMEOUT setting for cache expiration

Assign the CACHES dictionary to Django settings

Use the @cache_page decorator to cache a view

💡 Why This Matters

🌍 Real World

Caching helps websites load faster by storing data temporarily, reducing database hits and speeding up response times.

💼 Career

Understanding Django's cache framework is important for backend developers to optimize web application performance.

1

Create the cache dictionary

Create a dictionary called CACHES with a key 'default' that has a nested dictionary with 'BACKEND' set to 'django.core.cache.backends.locmem.LocMemCache'.

Django

# Your code here

Need a hint?

Use a dictionary with key 'default' and set 'BACKEND' to the local memory cache backend string.

2

Add cache timeout setting

Add a TIMEOUT key inside the 'default' dictionary in CACHES and set it to 300 seconds.

Django

CACHES = {
    'default': {
        'BACKEND': 'django.core.cache.backends.locmem.LocMemCache',
        # Add TIMEOUT here
    }
}

Need a hint?

Add 'TIMEOUT': 300 inside the 'default' dictionary.

3

Assign cache configuration to settings

Assign the CACHES dictionary to a variable called settings.CACHES to apply the cache configuration in Django settings.

Django

CACHES = {
    'default': {
        'BACKEND': 'django.core.cache.backends.locmem.LocMemCache',
        'TIMEOUT': 300
    }
}

# Assign CACHES to settings.CACHES
# Your code here

Need a hint?

Import settings from django.conf and assign CACHES to settings.CACHES.

4

Enable caching on a view

Import cache_page from django.views.decorators.cache and decorate a view function called my_view with @cache_page(300) to cache its response for 300 seconds.

Django

from django.conf import settings

CACHES = {
    'default': {
        'BACKEND': 'django.core.cache.backends.locmem.LocMemCache',
        'TIMEOUT': 300
    }
}

settings.CACHES = CACHES

from django.views.decorators.cache import cache_page

@cache_page(300)
def my_view(request):
    # Your view code here
    pass

Need a hint?

Use @cache_page(300) above the my_view function definition.