Database 如何在Slick 3.0中设计共享模式？

我正在用slick 3.0设计一把刀。我的问题是，模式中的每个表都有以下3个公共列：

  def id = column[UUID]("id", O.PrimaryKey)
  def createdDate = column[Timestamp]("created_date")
  def updatedDate = column[Timestamp]("updated_date")

是否有一种设计将它们放入trait并从所有其他模式类扩展？我不想重复复制和粘贴这段代码多次

我的一个班是：

class EmailParameterSchema(tag: Tag) extends Table[EmailParameter](tag, "email_parameter") {
  def id = column[UUID]("id", O.PrimaryKey)
  def paramKey = column[String]("param_key")
  def paramValue = column[String]("param_value")
  def emailQueueId = column[UUID]("email_queue_id")
  def createdDate = column[Timestamp]("created_date")
  def updatedDate = column[Timestamp]("updated_date")

  def * = (id, paramKey, paramValue, emailQueueId,createdDate,updatedDate) <> (EmailParameter.tupled, EmailParameter.unapply)
}

---

我已经解决了。这是共享架构：

trait CommonSchema[A] extends Table[A] {
  def id = column[UUID]("id", O.PrimaryKey)
  def createdDate = column[Timestamp]("created_date")
  def updatedDate = column[Timestamp]("updated_date")
}

这就是如何使用它：

class EmailParameterSchema(tag: Tag) extends Table[EmailParameter](tag, "email_parameter") with CommonSchema[EmailParameter]{
  def paramKey = column[String]("param_key")
  def paramValue = column[String]("param_value")
  def emailQueueId = column[UUID]("email_queue_id")

  def * = (id, paramKey, paramValue, emailQueueId,createdDate,updatedDate) <> (EmailParameter.tupled, EmailParameter.unapply)
}