what_is_comcoms.md

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What is ComComs?

⚠️   comcoms - is main method to get all comments related with user's commentable models.

⚠️   comments - is main method to get comments related with any commentable model.

ComComs - comments of commentable models

ComComs are all incoming comments for all models, where this user is owner.

For example, some user has_many :posts, and has_many :products - all comments for all user's posts and all user's products called as comcoms.

Why we need ComComs?

User model can be commentable too. For example to build user's "public wall" (like tweets list for current user).

And we should to separate comments attached to user model (tweets) and comments attached to any another user's model.

That is why User model in-fact has following relationship declarations:

class User < ActiveRecord::Base
  has_many :comcoms, class_name: :Comment, foreign_key: :holder_id
  
  # and if User model is commentable model
  # has_many :comments, as: :commentable
  
  has_many :posts
  has_many :products
end

in real application it should be described like this:

class User < ActiveRecord::Base
  include TheCommentsUser
  include TheCommentsCommentable
  
  has_many :posts
  has_many :products
end

But in most popular situation User model should not be commentable, and you should use only comcoms method to get all comments related with this user:

class User < ActiveRecord::Base
  include TheCommentsUser

  has_many :posts
  has_many :products
end

and later in your application

@user = User.find params[:id]
@user.comcoms.count # => 42