Rails best way to get previous and next active record object

Question

I need to get the previous and next active record objects with Rails. I did it, but don\'t know if it\'s the right way to do that.

What I\'ve got:

Controller

Answer 1

This is what order_query does. Please try the latest version, I can help if it doesn't work for you:

class Product < ActiveRecord::Base
  order_query :my_order,
    [:product_sub_group_id, :asc], 
    [:id, :asc]     
  default_scope -> { my_order } 
end

@product.my_order(@collection.products).next
@collection.products.my_order_at(@product).next

This runs one query loading only the next record. Read more on Github.