Sending out emails is an important for of communication in our Rails applications. In this episode, we look at creating a local smtp relay with a web frontend to view the emails sent from our Rails application.

Routing in Rails is small but an important part of our applications. The Rails router recognizes URLs and dispatches them to a controller's action, or to a Rack application. It can also generate paths and URLs, avoiding the need to hardcode strings in your views.

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.

Using StimulusJS and Turbo, we are able to dynamically update select input with content based on another select input. This allows for a seamless user experience while having a configurable and maintainable backend.

Using Scenic, you can bring the power of SQL views to your Rails application without having to switch your schema format to SQL. Scenic provides a convention for versioning views that keeps your migration history consistent and reversible and avoids having to duplicate SQL strings across migrations.