private static CascadeOn Cleanup(CascadeOn cascade)
{
bool hasAll = cascade.Has(CascadeOn.All) || cascade.Has(AnyButOrphans);
if (hasAll && cascade.Has(CascadeOn.DeleteOrphans))
{
return(CascadeOn.All | CascadeOn.DeleteOrphans);
}
if (hasAll)
{
return(CascadeOn.All);
}
return(cascade);
}
public static CascadeOn Exclude(this CascadeOn source, CascadeOn value)
{
if (source.Has(CascadeOn.All) && !value.Has(CascadeOn.All))
{
return(Cleanup(((source & ~CascadeOn.All) | AnyButOrphans) & ~value));
}
return(Cleanup(source & ~value));
}
private static Cascade IncludeIfNeeded(CascadeOn source, CascadeOn valueToCheck, Cascade destination)
{
return(source.Has(valueToCheck) ? destination.Include(ConvertSingleValue(valueToCheck)) : destination);
}