codesurf42

// case class Rel3(id: Int, vals: Option[Map[String, Set[Int]]])
val setm1 = Map(1 -> Some(Map("a" -> Set(1,2))))
val setm2 = Map(1 -> Some(Map("a" -> Set(2,3))))
val setm3 = Map(1 -> None)
val setm4 = Map(2 -> Some(Map("b" -> Set(5,6))))

val all = Set(setm1, setm2, setm3, setm4)
import scalaz._
import Scalaz._

codesurf42

case class Rel3(id: Int, vals: Option[Map[String, Set[Int]]])
val setm1 = Set(Rel3(1, Some(Map("a" -> Set(1,2)))))
val setm2 = Set(Rel3(1, Some(Map("a" -> Set(2,3)))))
val setm3 = Set(Rel3(1, None))
val setm4 = Set(Rel3(2, Some(Map("b" -> Set(5,6)))))
val all = (setm1 ++ setm2 ++ setm3 ++ setm4)
all.groupBy(_.id).mapValues(s =>
  //  Rel3(s.head.id, Some(s.flatMap(_.vals).toList.reduce(_|+|_)))).values
  Rel3(s.head.id, Some(s.flatMap(_.vals).toList.reduce((h1, h2) => (h1 ++ h2).map{ case (k,v) => k -> (v ++ h1.getOrElse(k,Set())) })))).values

codesurf42

import java.net.URLDecoder
import play.api.Logger
import play.api.libs.iteratee.Iteratee
import play.api.mvc.{ Result, RequestHeader, Filter }
import play.api.libs.concurrent.Execution.Implicits.defaultContext
import scala.concurrent.Future

object LoggingFilter extends Filter {
  override def apply(nextFilter: (RequestHeader) => Future[Result])(rh: RequestHeader): Future[Result] = {
    val startTime = System.currentTimeMillis()

codesurf42

>> foo = "aaa"                                                                                                                               
=> "aaa"                                                                                                                                     
>> bar = 123
=> 123
>> foo + bar
TypeError: no implicit conversion of Fixnum into String
        from (irb):3:in `+'
        from (irb):3
        from /home/ab/.rbenv/versions/2.0.0-p247/bin/irb:12:in `<main>'