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<?php |
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namespace Blackmine\Collection; |
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use Blackmine\Model\ParentableInterface; |
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use Blackmine\Tool\Inflect; |
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class HierarchyCollection extends IdentityCollection |
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{ |
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protected array $orphans = []; |
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public function __construct(array $elements = [], protected string $parent_field = "id") |
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{ |
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parent::__construct($elements); |
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} |
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public function findBy(string $field, mixed $value, bool $recursive = false): mixed |
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{ |
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foreach ($this->getElements() as $identity) { |
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$getter = "get" . ucfirst(Inflect::camelize($field)); |
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if ($identity->$getter() === $value) { |
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return $identity; |
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} |
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if ($recursive) { |
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$children = $identity->getChildren(); |
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if ($children instanceof self) { |
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return $children->findBy($field, $value, $recursive); |
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} |
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} |
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} |
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return null; |
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} |
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public function replaceBy(string $field, ParentableInterface $value, bool $recursive = false): void |
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{ |
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foreach ($this->getElements() as $element) { |
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$getter = "get" . ucfirst(Inflect::camelize($field)); |
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if ($element->$getter() === $value->$getter()) { |
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$idx = $this->indexOf($element); |
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$this->set($idx, $value); |
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return; |
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} |
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if ($recursive) { |
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$children = $element->getChildren(); |
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if ($children instanceof self) { |
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$children->replaceBy($field, $value, $recursive); |
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} |
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} |
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} |
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} |
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/** |
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* @param ParentableInterface $element |
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*/ |
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public function add($element) |
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{ |
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$has_parent = $element->getParent(); |
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if ($has_parent) { |
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$getter = "get" . ucfirst(Inflect::camelize($this->parent_field)); |
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$parent = $this->findBy($this->parent_field, $element->getParent()?->$getter(), true); |
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if ($parent) { |
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$parent->addChild($element); |
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$this->replaceBy($this->parent_field, $parent, true); |
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} else { |
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$this->orphans[$element->$getter()] = $element; |
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} |
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} else { |
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parent::add($element); |
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if (!empty($this->orphans)) { |
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foreach ($this->orphans as $id => $orphan) { |
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$this->add($orphan); |
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unset($this->orphans[$id]); |
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} |
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} |
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} |
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} |
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public function addDirect(ParentableInterface $element): void |
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{ |
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parent::add($element); |
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} |
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} |
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diego-ninja /
blackmine
