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How to reference a scala enumeration from another package

I am having trouble understanding why I cannot reference the scala enum type.

The problem is that sometimes I can reference enums:

enum(UserStatus)

and sometimes he complains that he could not find the listing

not found: type UserStatus

Why sometimes I can not refer to the Enumeration class?

The generated source for the enumeration looks fine, and it works fine with the other enumeration that I have, which lives in the same place, the same use ...

Any suggestions?

More details

Generated source for listing:

public final class models.UserStatus extends java.lang.Object{
    public static final scala.Enumeration$Value Busy();
    public static final scala.Enumeration$Value Free();
    public static final scala.Enumeration$ValueSet$ ValueSet();
    public static final scala.Enumeration$Value withName(java.lang.String);
    public static final scala.Enumeration$Value apply(int);
    public static final int maxId();
    public static final scala.Enumeration$ValueSet values();
    public static final java.lang.String toString();
}

I am trying to implement enum mapper for play framework 2.0

def enumFormat[E <: Enumeration](enum: E): Formatter[E#Value] = new Formatter[E#Value] {
  def bind(key: String, data: Map[String, String]) = {
    Formats.stringFormat.bind(key, data).right.flatMap { s =>
      scala.util.control.Exception.allCatch[E#Value]
        .either(enum.withName(s))
        .left.map(e => Seq(FormError(key, "error.enum", Nil)))
    }
  }
  def unbind(key: String, value: E#Value) = Map(key -> value.toString)
}

And this method that calls mapper

def enum[E <: Enumeration](enum: E): Mapping[E#Value] = of(enumFormat(enum))

This means that the converter will automatically convert between enumerations when using form binding

Pseudocode of use.

package models {
  object UserStatus extends Enumeration {
    val Free = Value("free")
    val Busy = Value("busy")
  }

  case class User(
    status: UserStatus.Value = UserStatus.Free
  )
}

package controllers {
  imports models._
  val userForm = Form(
    mapping(
      "status" -> enum(UserStatus)
    )(User.apply)(User.unapply)
  )
}
+3
1

- , Scala .

:

object Foo extends Enumeration {
  val A, B, C = Value
}

Foo , Foo . Java, .

, Foo? Foo.Value ( ).

Foo, , Foo.Value:

object Foo extends Enumeration {
  type Foo = Value    // Type alias
  val A, B, C = Value
}

, Foo.Foo. Foo, :

import Foo._
def bar(foo: Foo): String = foo match {
  case A => "value A"
  case B => "value B"
  case C => "value C"
}

Foo, Foo.

+8

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