Prevent unauthorized access to your application with Pundit; an authorization library for Ruby on Rails which restricts what resources a given user is allowed to access.

For various reasons, we may decide to move our services off of one platform onto another. This could be due to pricing, uptime or other reasons. In this episode, we look at migrating a Ruby on Rails application and database from Heroku to Fly.

Using ClamAV, scan files uploaded to your application for viruses. In the event of a virus learn how to gracefully handle the infected file and notify the user.

Slow content got you down? Load it later! Use this gem to defer loading of portions of your page until after load. They will be fetched via AJAX and placed on the page when ready.

Advancing from Single Table Inheritance, learn how Polymorphic Associations differ and tricks to simplify their usage.