[英]Scala Play Action.async cant resolve Ok as mvc.AnyContent
以下控制器操作导致错误:
(block: => scala.concurrent.Future[play.api.mvc.SimpleResult])play.api.mvc.Action[play.api.mvc.AnyContent] cannot be applied to (scala.concurrent.Future[Object])".
操作中的每个Future都应该为Ok(),所以我不明白为什么Scala无法正确解析Future。
def form = Action.async {
val checkSetup: Future[Response] = EsClient.execute(new IndexExistsQuery("fbl_indices"))
checkSetup map {
case result if result.status == 200 => Ok("form")
case result => {
val createIndexResult: Future[Response] = EsClient.execute(new FillableSetupQuery())
createIndexResult map {
indexCreated => Ok("form").flashing("success" -> "alles tutti")
} recover {
case e: Throwable => Ok("form error").flashing("message" -> "error indexerzeugung")
}
}
} recover {
case e: Throwable => Ok("form error").flashing("message" -> "error index query")
}
}
完成Errormsg:
overloaded method value async with alternatives: [A](bodyParser: play.api.mvc.BodyParser[A])(block: play.api.mvc.Request[A] => scala.concurrent.Future[play.api.mvc.SimpleResult])play.api.mvc.Action[A] <and> (block: play.api.mvc.Request[play.api.mvc.AnyContent] => scala.concurrent.Future[play.api.mvc.SimpleResult])play.api.mvc.Action[play.api.mvc.AnyContent] <and> (block: => scala.concurrent.Future[play.api.mvc.SimpleResult])play.api.mvc.Action[play.api.mvc.AnyContent] cannot be applied to (scala.concurrent.Future[Object])
我不知道在哪里,但似乎该诉讼中有一个案件未被我的案件结构涵盖。 我将动作重构为此,现在可以正常工作:
def form = Action.async {
EsClient.execute(new IndexExistsQuery("fbl_indices")) flatMap {
index => if (index.status == 200) Future.successful(Ok("form"))
else {
EsClient.execute(new FillableSetupQuery()) map {
indexCreated => Ok("form").flashing("success" -> "alles tutti")
} recover {
case e: Throwable => Ok("form error").flashing("error" -> "error indexerzeugung")
}
}
} recover {
case e: Throwable => Ok("form error").flashing("error" -> "error index query")
}
}
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