Using the paper_trail gem, track changes to model records for auditing purposes and rollback changes when required.

In Ruby on Rails 5.1.0, generated virtual column support was added for MySQL and MariaDB. Using generated and stored columns can leverage heavy calculations to the SQL side.

Continuing from Episode #87, we take a deeper dive into virtual columns in Rails 5.1 and use them to parse JSON Data Types with adding indexes to the virtual column.

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.

N+1 queries can make an application slow. Having queries called within views can also slow down an app as well as making it less extendable.