public static Answer FindByDrug(Drug d, Question q)
{
if (d == null || !d.ID.HasValue || q == null || !q.ID.HasValue)
return null;
return FindByDrug(d.ID.Value, q.ID.Value);
}
public static IList<Link> FindByDrug(Drug d, Question q)
{
if (d == null || d.ID == null || q == null || q.ID == null)
return null;
return FindByDrug(d.ID.Value, q.ID.Value);
}
public static IList<Question> FindByParent(Question q)
{
if (q == null || !q.ID.HasValue)
return new List<Question>();
return FindByParent(q.ID.Value);
}