Play! 2.0 is a meanie head so we slap that bitch with SquAction, a trait binding session to action thread

SquAction.scala

package controllers

import play.api.mvc._

import org.squeryl._
import org.squeryl.PrimitiveTypeMode._

/**
 * bind a session to each action with this nifty Squeryl trait
 */
trait SquAction {
  
  def SquAction(f: => Request[AnyContent] => Result) = {
    Action(request => inTransaction { f(request) } ) 
  } 
  
}

SquActionUsage.scala

package controllers

object Test extends Controller with SquAction {   

  def logout = SquAction {
	Redirect( routes.Authentication.login ).withNewSession.flashing(
      "notice" -> "Logout was successful."
    )
  }
}