from-activerecord-to-ecto VS ransack

I looked into https://github.com/mauricew/from-activerecord-to-ecto/blob/master/data-changes.md and that kind of misrepresents what a changeset is. I'm not sure how I would explain changesets myself, but having the type name doesnt make something a changeset, it makes something a typed map (or structure)

You might be looking for something like Ransack - https://github.com/activerecord-hackery/ransack

I use ransack for this and find it very powerful and flexible without the need to rely on complex JS.

For especially complicated cases, you can consider learning how to create custom predicates and Ransackers - extensions that convert parameters directly into Arel (internal library ActiveRecord, used to build SQL queries).

You can use gems like Ransack to build search forms much faster, but for the purpose of learning and performance we will be building this feature ourselves. Throughout the process, you will also learn how to customize Rails default pluralization. By the end, we will be able to search for Pokemon by name, type, and region.