public void Save(Watch entity)
{
if (WatchRepository.Any(w => w.PersonId == entity.PersonId && w.WebResourceId == entity.WebResourceId))
{
throw this.ValidationException(e => e.PersonId, $"Watch already set for this {typeof(Person).Name.SplitUpperCaseBySpace()} and {typeof(WebResource).Name.SplitUpperCaseBySpace()}.");
}
WatchRepository.Save(entity);
}
