private Notification(SafetyNews safetyNews, NotificationType notificationType)
{
if (safetyNews == null)
{
throw new ArgumentNullException();
}
DateTime = DateTime.Now;
SafetyNews = safetyNews;
Type = notificationType;
}
public static Notification NewSafetyNews(SafetyNews safetyNews)
{
return(new Notification(safetyNews, NotificationType.SafetyNewsPosted));
}
