app/models/concerns/relationable.rb
module Relationable
extend ActiveSupport::Concern
included do
has_many :related_contents,
as: :parent_relationable,
inverse_of: :parent_relationable,
dependent: :destroy
end
def find_related_content(relationable)
RelatedContent.find_by(parent_relationable: self, child_relationable: relationable)
end
def relationed_contents
if MachineLearning.enabled? && Setting["machine_learning.related_content"].present?
related_content = related_contents.not_hidden.order(machine_learning_score: :desc)
else
related_content = related_contents.not_hidden.from_users
end
related_content.map(&:child_relationable).reject do |related|
related.respond_to?(:retired?) && related.retired?
end
end
end