Active Record Serialization¶ ↑

# File activerecord/lib/active_record/serialization.rb, line 14
def serializable_hash(options = nil)
  if self.class._has_attribute?(self.class.inheritance_column)
    if options.blank?
      return serializable_attributes(attribute_names_for_serialization - [self.class.inheritance_column])
    end

    options = options.dup

    options[:except] = Array(options[:except]).map(&:to_s)
    options[:except] |= Array(self.class.inheritance_column)
  end

  super(options)
end