added some comments

src/main/scala/code/model/BankingData.scala

@@ -358,8 +358,15 @@ trait BankAccount extends MdcLoggable {
     }
   }
 
-  private def viewNotAllowed(view : View ) = Failure("user does not have access to the " + view.name + " view")
-
+  private def viewNotAllowed(view : View ) = Failure(s"${UserNoPermissionAccessView} Current VIEW_ID (${view.viewId.value})")
+
+  /**
+    * 
+    * Check search for the bankaccount private views which the user have access to ++ public views.
+    * @param user a user
+    * @return a list of views, the user can access
+    *         
+    */
   final def permittedViews(user: Box[User]) : List[View] = {
     user match {
       case Full(u) => u.permittedViews(this)

src/main/scala/code/model/User.scala

@@ -77,9 +77,14 @@ trait User {
       Failure("user doesn't have access to any view that allows initiating transactions")
     }
   }
-
-
+
+  /**
+    *  return all the views the user has the access to. 
+    */
   def views: List[View]
+  /**
+    * Check the User have this `view` or not.
+    */
   def permittedView(v: View): Boolean =
     views.contains(v)
 

src/main/scala/code/model/dataAccess/view.scala

@@ -33,6 +33,7 @@ Berlin 13359, Germany
 package code.model.dataAccess
 
 import code.api.APIFailure
+import code.api.util.ErrorMessages
 import code.util.{AccountIdString, UUIDString}
 import net.liftweb.common.{Box, Full}
 import net.liftweb.mapper._
@@ -522,7 +523,7 @@ object ViewImpl extends ViewImpl with LongKeyedMetaMapper[ViewImpl]{
 
   def find(viewUID : ViewIdBankIdAccountId) : Box[ViewImpl] = {
     find(By(permalink_, viewUID.viewId.value) :: accountFilter(viewUID.bankId, viewUID.accountId): _*) ~>
-      APIFailure(s"View with permalink $viewId not found", 404)
+      APIFailure(s"${ErrorMessages.ViewNotFound}. Current ACCOUNT_ID(${viewUID.accountId.value}) and VIEW_ID (${viewUID.viewId.value})", 404)
     //TODO: APIFailures with http response codes belong at a higher level in the code
   }