Make your application faster by leveraging memory and caching fragments of your view.

Some cases require non-auto incrementing primary keys as well as multiple master writes without id conflicts. With ActiveUUID, we can configure our table's primary key with confidence without added complexity.

Using WebSockets, we are able to create a realtime notification between browsers. Useful for in-app messaging, chats, and more! Learn how to use Faye's Publish and Subscribe methods. I believe that this paves the way for successfully using and learning the upcoming ActionCable.

A continuation from Episode 20 where we explore rendering the user's edit pages in a modal on a per request basis. Instead of rendering all modals for the users in the index, we will request them using remote javascript.

Using Javascript responses, we can make our Rails application have a quick and responsive Single Page Application feel to it.

When your app is using Paranoia, calling destroy on an ActiveRecord object doesn't actually destroy the database record, but just hides it.

Dalli is a great interface for Memcached through Ruby.

Using unobtrusive javascript, we can hide certain fields on forms based on the selected values of other fields.

Make your strong parameters do more by extracting the logic in order to maximize the ability and security of your application.

Adding progress bars to your Refile uploader is easy thanks to the included javascript library from Refile. Learn how to add progress bars to your application.