require 'subj_models/concerns/comprising_external_id'

module SubjModels

  module ContentBlockModule

    def self.included(including_class)

      including_class.class_eval do

        include SubjModels::ComprisingExternalId

        belongs_to :document_file
        has_one :brand

      end

    end

    def to_s
      brands = Brand.where('content_block1_id=? OR (content_block2_id=? OR content_block3_id=?)', id, id, id)
      addition_text = brands.any? ? "#{brands.first.try(:name)}" : 'Без бренда'
      "#{title} - " + addition_text
    end

  end

end