public final function Discard(Object\UnitOfWork $UnitOfWork, $ParentEntity)
{
$Domain = $UnitOfWork->GetDomain();
list($CurrentValue, $HasOriginalValue, $OriginalValue) = $this->GetEntityRelationshipData($ParentEntity);
return $this->DiscardRelationshipChanges($Domain, $UnitOfWork, $ParentEntity, $CurrentValue, $HasOriginalValue, $OriginalValue);
}
public function Discard(Object\UnitOfWork $UnitOfWork, $ParentEntity)
{
$Domain = $UnitOfWork->GetDomain();
list($CurrentValue, $HasOriginalValue, $OriginalValue) = $this->GetEntityRelationshipData($ParentEntity);
$OriginalIsValidEntity = $this->IsValidEntity($OriginalValue);
$CurrentIsValidEntity = $this->IsValidEntity($CurrentValue);
$DiscardedRelationship = null;
if (!$CurrentIsValidEntity && !$this->IsOptional) {
throw $this->InvalidEntityAndIsRequired($CurrentValue);
}
if ($OriginalIsValidEntity) {
$DiscardedRelationship = $this->RelationshipType->GetDiscardedRelationship($Domain, $UnitOfWork, $ParentEntity, $OriginalValue);
}
return new Object\RelationshipChange(null, $DiscardedRelationship);
}