public static string CheckConcurrency <T>(T entity) where T : class, ICacheable
{
var lup = Dao.Single <T, DateTime>(entity.Id, x => x.LastUpdateTime);
if (entity.LastUpdateTime.CompareTo(lup) == 0)
{
return("");
}
using (var w = WorkspaceFactory.Create())
{
var loaded = w.Single <T>(x => x.Id == entity.Id);
var cr = ValidatorRegistry.GetConcurrencyErrorMessage(entity, loaded);
if (cr.SuggestedOperation == SuggestedOperation.Refresh)
{
RemoveFromEntityCache(entity);
}
return(cr.ErrorMessage);
}
}