Inverse_of ActiveRecord::Base

While reading the documentation of ActiveRecord::Associations, there are many useful methods, that I didnĀ“t know about it. But one came to me as quite useful, inverse_of. This method allow us to work with associations that haven`t been save yet, so it will work with the memory. This will optimise our object loading.

I will so you with some example.

Class Post < ActiveRecord::Base
  has_many :comments, inverse_of :post

Class Comment < ActiveRecord::Base
  belongs_to :post, inverse_of :comments