This post is really just a quick reminder for myself any time I need to use ActiveRecord::Associations::Preloader
to customize the scope of a preload.
It’s a private API, so it changes a lot. Really need to write a gem that does this gracefully…
Rails 7.1
ActiveRecord::Associations::Preloader.
new(
records: companies,
associations: :projects,
scope: Project.where(foo: "bar"),
).
call