public CategoryRepository(string connectionString, ILoggingService loggingService)
     : base(connectionString)
 {
     _nhibernate = new SessionHelper(_connectionString);
     _loggingService = loggingService;
 }
 public ProductRepository(string connectionString)
     : base(connectionString)
 {
     _nhibernate = new SessionHelper(_connectionString);
 }