Ruby on Rails: Replacing the “LIKE” part of the SQL query with Ruby code

Question

In my application I have a "LIKE" SQL query that is something like...

Item.where("name LIKE ?", "%"+params[:q]+"%").all

But I want to hit the db only 1x (at application start-up), since the number of Items is huge, and load this generic part...

Item.all

...into memory (a global variable), so I can later reuse its content throughout the app, in different cases, and refined with some case-specific Ruby code (see the "LIKE" part).

What's the speediest way to do such "filtering" with Ruby?

Answer 1

您可以为此使用低级缓存吗？