ActiveModel时间戳字段:时间戳来自哪里?

时间:2009-12-10 20:41:46

标签: ruby-on-rails timestamp activemodel

在Rail模型中,当添加/更新记录时,是否在rails服务器或数据库服务器上按时钟给出时间戳?

1 个答案:

答案 0 :(得分:7)

快速确认Rails source显示它是Rails服务器时间,由Ruby的Time.now方法返回:

private
  def create_with_timestamps #:nodoc:
    if record_timestamps
      current_time = current_time_from_proper_timezone

      write_attribute('created_at', current_time) if respond_to?(:created_at) && created_at.nil?
      write_attribute('created_on', current_time) if respond_to?(:created_on) && created_on.nil?

      write_attribute('updated_at', current_time) if respond_to?(:updated_at) && updated_at.nil?
      write_attribute('updated_on', current_time) if respond_to?(:updated_on) && updated_on.nil?
    end

    create_without_timestamps
  end

  def update_with_timestamps(*args) #:nodoc:
    if record_timestamps && (!partial_updates? || changed?)
      current_time = current_time_from_proper_timezone

      write_attribute('updated_at', current_time) if respond_to?(:updated_at)
      write_attribute('updated_on', current_time) if respond_to?(:updated_on)
    end

    update_without_timestamps(*args)
  end

  def current_time_from_proper_timezone
    self.class.default_timezone == :utc ? Time.now.utc : Time.now
  end