When I try to run (from Play Framework):
import play.api.db.DB
import anorm._
import org.joda.time.DateTime
import AnormExtensions._ // http://stackoverflow.com/a/11975107/11236
import play.api.Play.current
import java.util.Date
var stream = SQL("SELECT amiId, created, version FROM Amis WHERE created = {maxCreated}")
.on("maxCreated" -> new Date(maxCreated.getMillis))
.apply()
val map: Stream[Ami] = stream.map { ami =>
val s: String = ami[String]("amiId")
val date: Date = ami[Date]("created")
// The following line throws a compilation error
var version: Integer = ami[Integer]("version")
new Ami(s, new DateTime(date), version)
}
I get a compilation error : could not find implicit value for parameter c: anorm.Column[Integer]
What's the problem here? If I can read a Date
, why can't I read an Integer
?
问题是我使用java java.lang.Integer
而不是scala.Int
。
Such missing numeric conversion was fixed with release of Play 2.3. You may want upgrade to.
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