nnx-framework / form-comparator

                $diff = new Diff\UpdateCollection($this);

                break;

            case self::INSERT_COLLECTION_MODE:

                $sourceCollection = $this->getSourceElement();

                $prefixPath = $this->getPathToElement();

                if ($sourceCollection instanceof Collection) {

                    $this->collectionElementsDiff = $this->getCollectionDiffService()

                        ->buildDiffInsertedCollection($sourceCollection, $prefixPath);

                } else {

                    throw new Exception\DomainException('Invalid collections');

                }

                $diff = new Diff\InsertCollection($this);

                break;

            case self::DELETE_COLLECTION_MODE:

                $sourceCollection = $this->getSourceElement();

                $prefixPath = $this->getPathToElement();

                $diff = new Diff\InsertCollection($this);

                break;

            case self::DELETE_COLLECTION_MODE:

                $sourceCollection = $this->getSourceElement();

                $prefixPath = $this->getPathToElement();

                if ($sourceCollection instanceof Collection) {

                    $this->collectionElementsDiff = $this->getCollectionDiffService()

                        ->buildDiffDeletedCollection($sourceCollection, $prefixPath);

                } else {

                    throw new Exception\DomainException('Invalid collections');

                }

                $diff = new Diff\DeleteCollection($this);

                break;

            default:

                throw new Exception\DomainException(sprintf('Unknown mode %s', $this->mode));