public void PreviousMustNotBeInUse()
{
RuleFor(x => x)
.Must(x =>
{
var chains = _evidenceDatastore.ByClaim(x.ClaimId);
var allPrevIds = chains.SelectMany(chain => chain.Select(evidence => evidence.PreviousId));
return(!allPrevIds.Contains(x.PreviousId));
})
.When(x => !string.IsNullOrEmpty(x.PreviousId))
.WithMessage("Previous evidence already in use");
}
public IEnumerable <IEnumerable <T> > ByClaim(string claimId)
{
return(_filter.Filter(_datastore.ByClaim(claimId)));
}