Question

我刚刚开始使用scala和lift，并且因为将MegaProtoUser中的表单字段合并到向导屏幕而感到有些困惑。

我有以下MegaProtoUser代码：

object User extends User 
  with MongoMetaRecord[User]
  with MetaMegaProtoUser[User] {
    override def skipEmailValidation = true
  }

class User private () extends MongoRecord[User]
  with MegaProtoUser[User] {
    def meta = User

     //protected methods ...

}

我的向导设置如下所示：

object SignupWizard extends Wizard {
  object completeInfo extends WizardVar(false)

  val person = new Screen {

    //Incoroporate MegaProtoUser fields here ...

    override def nextScreen = {
       business
    }
  }

  val business = new Screen {
    val business = field("Business name","")
  }

  def finish() {
    S.notice("Thank you for registering!")
    completeInfo.set(true)
  }

}

我想将MegaProtoUser类中的一些选定（不是全部）字段合并到人员屏幕中，但现在不知道如何使用两者可用的方法执行此操作。非常感谢任何帮助。

Answer 1

AbstractScreen的{{3}}方法可以添加单个字段，也可以添加Record对象中的所有字段。这适用于addFields和LiftScreen。

// assuming you just want to create a new user
object user extends WizardVar(User.createRecord)

val person = new Screen {
  // addFields(() => user.is) would add all fields
  addFields(() => user.is.email)
  addFields(() => user.is.password)
  addFields(() => user.is.timezone)

  override def nextScreen = {
     business
  }
}

将MegaProtoUser中的字段合并到向导屏幕中

1 个答案: