/// <summary>
/// RolePlayerPositionChangeRule: typeof(ORMSolutions.ORMArchitect.ORMAbstraction.UniquenessIncludesConceptTypeChild)
/// Reorder the columns in a uniqueness constraint when the order changes
/// </summary>
private static void UniquenessConstraintRoleOrderChanged(RolePlayerOrderChangedEventArgs e)
{
Uniqueness uniqueness;
LinkedElementCollection <UniquenessConstraint> constraints;
int constraintCount;
if (null != (uniqueness = e.SourceElement as Uniqueness) &&
e.SourceDomainRole.Id == UniquenessIncludesConceptTypeChild.UniquenessDomainRoleId &&
0 != (constraintCount = (constraints = UniquenessConstraintIsForUniqueness.GetUniquenessConstraint(uniqueness)).Count))
{
LinkedElementCollection <ConceptTypeChild> conceptTypeChildren = uniqueness.ConceptTypeChildCollection;
int conceptTypeChildCount = conceptTypeChildren.Count;
for (int i = 0; i < constraintCount; ++i)
{
LinkedElementCollection <Column> constraintColumns = constraints[i].ColumnCollection;
int constraintColumnCount = constraintColumns.Count;
if (constraintColumnCount == conceptTypeChildCount)
{
constraintColumns.Move(e.OldOrdinal, e.NewOrdinal);
}
else
{
// UNDONE: The question of exactly how many columns are associated with a reference to
// a conceptTypeChild is highly non-trivial. Punt on the issue for now by regenerating
// the model.
ConceptType conceptType = uniqueness.ConceptType;
if (conceptType != null)
{
RebuildAbstractionModel(conceptType.Model);
}
}
}
}
}
/// <summary>
/// DeletingRule: typeof(ORMSolutions.ORMArchitect.ORMAbstraction.UniquenessIncludesConceptTypeChild)
/// Remove a column in a uniqueness constraint when a concept type child is removed from the
/// corresponding abstraction construct
/// </summary>
private static void UniquenessConstraintRoleDeleting(ElementDeletingEventArgs e)
{
UniquenessIncludesConceptTypeChild link = (UniquenessIncludesConceptTypeChild)e.ModelElement;
Uniqueness uniqueness = link.Uniqueness;
LinkedElementCollection <UniquenessConstraint> constraints;
int constraintCount;
if (!uniqueness.IsDeleting &&
!link.ConceptTypeChild.IsDeleting &&
0 != (constraintCount = (constraints = UniquenessConstraintIsForUniqueness.GetUniquenessConstraint(uniqueness)).Count))
{
int removeAtIndex = UniquenessIncludesConceptTypeChild.GetLinksToConceptTypeChildCollection(uniqueness).IndexOf(link);
for (int i = 0; i < constraintCount; ++i)
{
constraints[i].ColumnCollection.RemoveAt(removeAtIndex);
}
}
}