Scala / Play错误@Overloaded方法值[tuple]无法应用于：请参阅下面的代码
def getPropertyFromRequest(implicit request: Request[AnyContent]): (Property, Option[ObjectId], Option[ObjectId], Option[ObjectId]) = {
val p =
Form(tuple(
"desc" -> text,
"url" -> text,
"image" -> text,
"price" -> text,
"sqft" -> text,
"address2" -> text,
"lotsize" -> text,
"taxes" -> text,
"status" -> optional(text),
"maint" -> text,
"address" -> text,
"mls" -> text,
"baths" -> text,
"beds" -> text,
"partial_baths" -> text,
"propertyId" -> optional(text),
"snoopId" -> optional(text),
"year_built" -> text,
"groupId" -> optional(text) //upon adding this, error show up
)).bindFromRequest().fold(
errors => {Logger.error(errors.toString())
throw new Error("could not parse form")},
success => success
)
val a = GeoCoder.create(p._11 + " " + p._6)
val property = Property(url = p._2,
description = p._1,
image = p._3,
price = parseAmount(p._4).toDouble,
sqft = p._5,
lotSize = p._7,
taxes = parseAmount(p._8),
status = PropertyStatus.ACTIVE,
maintenance = parseAmount(p._10),
mls = p._12,
baths = try{p._13.toDouble}catch{case e => 0},
beds = try{p._14.toInt}catch{case e=> 0},
partialBaths = try{p._15.toInt}catch{case e => 0},
address = a,
yearBuilt = Some(p._18))
( property, p._16.map(new ObjectId(_)) ,p._17.map(new ObjectId(_)), p._19.map(new ObjectId(_)) )
}
注意：此代码工作正常，但在元组列表中添加 groupID 时，会显示错误 . 根据我的研究，元组只有22max元素，但是这个元素多达19个，所以不确定是什么时候发生的 .
提前致谢
1 回答
Forms中的
tuple方法仅重载最多18个元组 .我不知道为什么Play在18点停止，它似乎是22的仲裁 .
有几个工作 . 为更大的arity元组编写自己的
tuple方法，或者使用嵌套的映射器 .