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<?php |
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declare(strict_types=1); |
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namespace StefanoTree\NestedSet\MoveStrategy; |
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use StefanoTree\Exception\TreeIsBrokenException; |
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use StefanoTree\Exception\ValidationException; |
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class ChildTop extends MoveStrategyAbstract implements MoveStrategyInterface |
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{ |
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/** |
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* {@inheritdoc} |
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*/ |
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protected function canMoveBranch(): void |
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{ |
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if ($this->isTargetNodeInsideSourceBranch()) { |
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throw new ValidationException('Cannot move. Target node is inside source branch.'); |
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} |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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protected function isSourceNodeAtRequiredPosition(): bool |
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{ |
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$source = $this->getSourceNodeInfo(); |
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$target = $this->getTargetNodeInfo(); |
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return ($source->getParentId() == $target->getId() && $target->getLeft() == ($source->getLeft() - 1)) ? true : false; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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protected function updateParentId(): void |
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{ |
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$newParentId = $this->getTargetNodeInfo()->getId(); |
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$this->_updateParentId($this->getSourceNodeInfo(), $newParentId); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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protected function updateLevels(): void |
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{ |
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$source = $this->getSourceNodeInfo(); |
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$levelShift = $this->getTargetNodeInfo()->getLevel() - $source->getLevel() + 1; |
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$this->_updateLevels($source, $levelShift); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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protected function makeHole(): void |
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{ |
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$holeFromIndex = $this->getTargetNodeInfo()->getLeft(); |
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$indexShift = $this->getIndexShift(); |
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$scope = $this->getSourceNodeInfo()->getScope(); |
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$this->_makeHole($holeFromIndex, $indexShift, $scope); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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protected function moveBranchToTheHole(): void |
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{ |
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$source = $this->getSourceNodeInfo(); |
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$target = $this->getTargetNodeInfo(); |
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if ($this->isMovedToRoot() || $this->isMovedUp()) { |
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$leftIndex = $source->getLeft() + $this->getIndexShift(); |
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$rightIndex = $source->getRight() + $this->getIndexShift(); |
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$indexShift = $target->getLeft() - $source->getRight(); |
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} elseif ($this->isMovedDown()) { |
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$leftIndex = $source->getLeft(); |
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$rightIndex = $source->getRight(); |
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$indexShift = $target->getLeft() - $source->getLeft() + 1; |
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} else { |
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throw new TreeIsBrokenException(); |
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} |
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$scope = $source->getScope(); |
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$this->_moveBranchToTheHole($leftIndex, $rightIndex, $indexShift, $scope); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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protected function patchHole(): void |
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{ |
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$source = $this->getSourceNodeInfo(); |
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$fromIndex = $source->getRight(); |
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$indexShift = $this->getIndexShift() * -1; |
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$scope = $source->getScope(); |
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$this->_patchHole($fromIndex, $indexShift, $scope); |
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} |
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} |
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bartko-s /
stefano-tree
