class ApplicationRecord < ActiveRecord::Base
  self.abstract_class = true

  module ApiMethods
    extend ActiveSupport::Concern

    def as_json(options = {})
      options ||= {}
      options[:except] ||= []
      options[:except] += hidden_attributes

      options[:methods] ||= []
      options[:methods] += method_attributes

      super(options)
    end

    def to_xml(options = {}, &block)
      options ||= {}

      options[:except] ||= []
      options[:except] += hidden_attributes

      options[:methods] ||= []
      options[:methods] += method_attributes

      super(options, &block)
    end

    def serializable_hash(*args)
      hash = super(*args)
      hash.transform_keys { |key| key.delete("?") }
    end

    protected

    def hidden_attributes
      [:uploader_ip_addr, :updater_ip_addr, :creator_ip_addr, :ip_addr]
    end

    def method_attributes
      []
    end
  end

  include ApiMethods
end