to_json

# File ext/json/lib/json/add/rails.rb, line 19
  def to_json(*a)
    result = {
      'json_class' => self.class.name
    }
    instance_variables.inject(result) do |r, name|
      r[name[1..-1]] = instance_variable_get name
      r
    end
    result.to_json(*a)
  end