我正在我的电梯应用程序中开发我的用户类,并开发了两种形式,一种用于用户注册,一种用于用户登录。
我有以下用户类:
class MongoUser private () extends MongoRecord[MongoUser]
with MongoId[MongoUser] {
def meta = MongoUser
object firstname extends StringField(this, "")
object lastname extends StringField(this, "")
object password extends PasswordField(this, "")
object email extends EmailField(this, 90)
object business extends StringField(this, "")
/*
* validation method for checking email is unique
*/
protected def emailUnique(emailVal:String) = {
meta.findAll("email", emailVal) match {
case Nil => Nil
case _ => List(FieldError(email, "Email should be unique"))
}
}
}
以及以下两个屏幕:
object SignupWizard extends Wizard {
object user extends WizardVar(MongoUser.createRecord)
val person = new Screen {
addFields(() => user.is.firstname)
addFields(() => user.is.lastname)
addFields(() => user.is.password)
addFields(() => user.is.email)
override def nextScreen = {
//user.is.save
business
}
}
val business = new Screen {
addFields(() => user.is.business)
}
def finish() {
user.is.save
}
}
/*
*Screen for user login
*/
object LoginScreen extends LiftScreen {
object user extends ScreenVar(MongoUser)
addFields(() => user.is.email)
addFields(() => user.is.password)
def finish() {
S.notice(
user.is.login(
user.email.toString,
user.password.toString).toString)
}
}
我需要确保在 SignupWizard 屏幕中,电子邮件地址是唯一的。我可以通过更改 MongoUser 类中的电子邮件字段来做到这一点,如下所示:
object email extends EmailField(this, 90) {
override def validations = {
emailUnique _ ::
super.validations
}
}
但这现在意味着验证规则也适用于登录,这显然不是我想要的。
问题:在不同屏幕中向我的 MongoUser 字段添加临时验证规则的最有效方法是什么?