class AppConfig < ActiveRecord::Base
  after_save :reload
  validates :name, :presence=>true
  def self.[](name)
    val = select{|t| t.name==name}[0].try(:value)
    if val && (val==val.to_i.to_s)
      val = val.to_i
    end
    val
  end
  def self.current
    @current ||= AppConfig.all
  end
  def self.reload
    @current = nil
  end
end