public bool Add(Arac model)
 {
     using (AracRepository aracRepo = new AracRepository())
     {
         try
         {
             if (aracRepo.Add(model))
             {
                 return(true);
             }
             else
             {
                 return(false);
             }
         }
         catch (Exception ex)
         {
             throw new Exception(ex.Message);
         }
     }
 }