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<?php |
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namespace Xsolve\Associate\AssociationPath; |
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class AssociationPath |
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{ |
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/** |
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* @var string[] |
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*/ |
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protected $associationNames; |
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/** |
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* @param string[] $associationNames |
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*/ |
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public function __construct(array $associationNames) |
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{ |
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$this->associationNames = $associationNames; |
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} |
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/** |
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* @return string[] |
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*/ |
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public function getAssociationNames() |
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{ |
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return $this->associationNames; |
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} |
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/** |
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* @return int |
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*/ |
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public function getDepth() |
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{ |
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return count($this->associationNames); |
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} |
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/** |
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* @param self $anotherAssociationPath |
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* |
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* @return self |
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* |
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* @throws \Exception |
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*/ |
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public function getRelativeTo(self $anotherAssociationPath): self |
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{ |
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if ( |
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$anotherAssociationPath->getDepth() > $this->getDepth() |
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|| !$this->isPartiallyEqual($anotherAssociationPath) |
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) { |
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throw new \Exception(); |
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} |
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return new self(array_slice($this->associationNames, $anotherAssociationPath->getDepth())); |
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} |
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/** |
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* @return bool |
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*/ |
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public function isRoot(): bool |
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{ |
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return empty($this->associationNames); |
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} |
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/** |
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* @param AssociationPath $anotherAssociationPath |
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* |
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* @return bool |
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*/ |
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public function isPartiallyEqual(self $anotherAssociationPath): bool |
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{ |
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$minDepth = min($this->getDepth(), $anotherAssociationPath->getDepth()); |
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return |
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array_slice($this->associationNames, 0, $minDepth) |
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=== array_slice($anotherAssociationPath->associationNames, 0, $minDepth); |
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} |
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/** |
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* @param AssociationPath $anotherAssociationPath |
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* |
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* @return bool |
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*/ |
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public function isEqual(self $anotherAssociationPath): bool |
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{ |
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return $this->associationNames === $anotherAssociationPath->associationNames; |
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} |
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/** |
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* @param self $associationPath1 |
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* @param self $associationPath2 |
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* |
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* @return int |
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* |
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* @throws \Exception |
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*/ |
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public static function compare(self $associationPath1, self $associationPath2): int |
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{ |
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if ($associationPath1->isEqual($associationPath2)) { |
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return 0; |
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} |
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$comparison = $associationPath1->getDepth() <=> $associationPath2->getDepth(); |
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if (0 !== $comparison) { |
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return $comparison; |
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} |
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$i = 0; |
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$iMax = $associationPath1->getDepth(); |
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while ($i < $iMax) { |
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$comparison = $associationPath1->associationNames[$i] <=> $associationPath2->associationNames[$i]; |
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if (0 !== $comparison) { |
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return $comparison; |
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} |
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$i += 1; |
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} |
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throw new \Exception(); |
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} |
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/** |
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* @return string |
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*/ |
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public function __toString() |
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{ |
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return implode('.', $this->associationNames); |
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} |
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} |
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xsolve-pl /
xsolve-associate
