The Null Object Pattern is an old but good pattern that can help reduce complexity in our applications. In this episode, we'll look at a few different examples.

Optimistic Locking is a feature to prevent collision when two users are editing the same record. In this episode, we look at adding this feature into a Rails 7 application that is using Turbo.

Create dynamic roles that can be assigned to users. Based on the assigned role, the user will be able to perform or view various parts of the application.

In this episode, we continue the Trello clone by adding a collaborator invitation mechanism to join working on lists. We look at some tricky ActiveRecord relationships and various solutions.

In this episode we create a Like/Unlike system where users can like posts and use Global ID to obfuscate IDs.