diff --git a/src/main/scala/app/ControllerBase.scala b/src/main/scala/app/ControllerBase.scala
index 9af9be7..d92a2b7 100644
--- a/src/main/scala/app/ControllerBase.scala
+++ b/src/main/scala/app/ControllerBase.scala
@@ -5,7 +5,7 @@
 import org.scalatra.json._
 import org.json4s._
 import jp.sf.amateras.scalatra.forms._
-import service.AccountService
+import service._
 
 /**
  * Provides generic features for ScalatraServlet implementations.
@@ -76,6 +76,49 @@
     }
   }
 
+//  /**
+//   * Allows only collaborators and administrators.
+//   */
+//  protected def collaboratorsOnly(action: => Any) = {
+//    {
+//      context.loginAccount match {
+//        case Some(x) if(x.userType == AccountService.Administrator) => action
+//        case Some(x) if(request.getRequestURI.split("/")(1) == x.userName) => action
+//        case Some(x) => {
+//          val paths = request.getRequestURI.split("/")
+//          if(getCollaborators(paths(1), paths(2)).contains(x.userName)){
+//            action
+//          } else {
+//            redirect("/signin")
+//          }
+//        }
+//        case None => redirect("/signin")
+//      }
+//    }
+//  }
+//
+//  /**
+//   * Allows only collaborators and administrators.
+//   */
+//  protected def collaboratorsOnly[T](action: T => Any) = {
+//    (form: T) => {
+//      context.loginAccount match {
+//        case Some(x) if(x.userType == AccountService.Administrator) => action(form)
+//        case Some(x) if(request.getRequestURI.split("/")(1) == x.userName) => action(form)
+//        case Some(x) => {
+//          val paths = request.getRequestURI.split("/")
+//          if(getCollaborators(paths(1), paths(2)).contains(x.userName)){
+//            action(form)
+//          } else {
+//            redirect("/signin")
+//          }
+//        }
+//        case None => redirect("/signin")
+//      }
+//    }
+//  }
+
+
 //  protected def adminOnly()
 
 }