User experience is important and there are little things that we can do to help improve this experience. By giving real time feedback on text inputs to approaching limits on fields, the user can modify and update their text accordingly before they submit the form. In this episode, we look at database level, model validations and limiting text input on the client side.

We have a look at integrating the HaveIBeenPwned service with Devise so that our users will some awareness of their password being potentially compromised.

In this episode, we have a look at some causes of race conditions and go about some ways to troubleshoot and mitigate them.

Active Record supports application-level encryption. The encryption layer sits between the database and the application. The application will access unencrypted data, but the database will store it encrypted. In this episode, we look at implementing encryption for a model's attribute and Action Text.

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.