Question

This seems like it should be a common problem but I’m having trouble finding an answer. Basically I want to have a form with 10 or so checkboxes which I’m creating with check_box_tag. When the form is submitted I want to generate a query that return all records that match ANY of the checked selections. So, the number of checked selections will vary.

So, for example, if I have

class Book < ActiveRecord::Base
  belongs_to :author
end

I want to generate something like

Book.where("author_id = ? or author_id = ?", params[authors[0]], params[authors[1]]) if there are two boxes checked, etc.

Thanks for any insight.

Answer 1

Will this work for you?

Book.where(author_id: [array_of_author_ids])

You need to collect author_ids from params first