public IQueryable <IDalUser> GetByPredicate(Expression <Func <IDalUser, bool> > f)
 {
     return(_context.Set <User>().Include("Role").Include("Files").Include("Folders").Select(DalMappersExpressions.ToDalUserExpression()).Where(f));
 }
 public IQueryable <IDalUser> GetAll()
 {
     return(_context.Set <User>().Include("Role").Include("Files").Include("Folders").Select(DalMappersExpressions.ToDalUserExpression()));
 }