module Elabs
  class ArticlesTag < ApplicationRecord
    self.table_name = 'articles_tags'

    belongs_to :article
    belongs_to :tag

    after_create :increment_counter_cache
    after_destroy :decrement_counter_cache

    private

    def increment_counter_cache
      tag.increment! :articles_count if article.publicly_visible?
    end

    def decrement_counter_cache
      tag.decrement! :articles_count if article.publicly_visible?
    end
  end
end