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

Write these methods in your Product model:

class Product

  def next
    self.class.where("id > ?", id).first
  end

  def previous
    self.class.where("id < ?", id).last
  end

end

Now you can do in your controller:

@product = Product.friendly.find(params[:id])

@previous_product = @product.next
@next_product = @product.previous

Please try it, but its not tested. Thanks