public bool CreateServer(ServerModel model)
{
//return System.Operation.Create(() =>
//{
var isExists = _context.Servers.Where(c => c.ServerID == model.ServerID).FirstOrDefault();
if (isExists != null)
{
throw new Exception("user email already exist");
}
var entity = model.Create(model);
_context.Servers.Add(entity);
_context.SaveChanges();
return(true);
//});
}