active record extension

active_record_extension.rb

module ActiveRecordExtension

  extend ActiveSupport::Concern

  def as_json(options = {})
    begin
      serializer_class = "#{self.class}Serializer"
      serializer_class.constantize.new(self, {root: false})  
    rescue LoadError => e
      super(options)
    end
  end
end

ActiveRecord::Base.send(:include, ActiveRecordExtension)