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<?php |
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namespace BenTools\DoctrineWatcher\Changeset; |
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final class PropertyChangeset |
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{ |
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public const INSERT = 'insert'; |
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public const UPDATE = 'update'; |
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/** |
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* @var mixed |
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*/ |
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protected $newValue; |
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/** |
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* @var mixed |
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*/ |
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protected $oldValue; |
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/** |
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* @var array |
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*/ |
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protected $additions; |
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/** |
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* @var array |
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*/ |
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protected $removals; |
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/** |
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* PropertyChangeset constructor. |
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* |
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* @param mixed $newValue |
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* @param mixed $oldValue |
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*/ |
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public function __construct($oldValue = null, $newValue = null) |
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{ |
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$this->newValue = $newValue; |
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$this->oldValue = $oldValue; |
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} |
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/** |
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* @return mixed |
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*/ |
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public function getOldValue() |
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{ |
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return $this->oldValue; |
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} |
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/** |
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* @return mixed |
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*/ |
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public function getNewValue() |
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{ |
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return $this->newValue; |
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} |
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/** |
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* @return bool |
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*/ |
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public function hasChanges(): bool |
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{ |
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if ($this->canBeComparedAsIterables()) { |
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return $this->hasAdditions() || $this->hasRemovals(); |
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} |
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return $this->oldValue !== $this->newValue; |
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} |
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/** |
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* @return iterable |
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*/ |
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public function getAdditions(): iterable |
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{ |
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if (!$this->canBeComparedAsIterables()) { |
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throw new \RuntimeException(sprintf('%s can only be called on iterable properties changesets.', __METHOD__)); |
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} |
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$this->computeAdditionsAndRemovals(); |
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return $this->additions; |
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} |
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/** |
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* @return iterable |
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*/ |
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public function getRemovals(): iterable |
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{ |
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if (!$this->canBeComparedAsIterables()) { |
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throw new \RuntimeException(sprintf('%s can only be called on iterable properties changesets.', __METHOD__)); |
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} |
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$this->computeAdditionsAndRemovals(); |
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return $this->removals; |
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} |
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/** |
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* @return bool |
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*/ |
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public function hasAdditions(): bool |
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{ |
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if (!$this->canBeComparedAsIterables()) { |
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throw new \RuntimeException(sprintf('%s can only be called on iterable properties changesets.', __METHOD__)); |
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} |
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$this->computeAdditionsAndRemovals(); |
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return [] !== $this->additions; |
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} |
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/** |
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* @return bool |
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*/ |
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public function hasRemovals(): bool |
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{ |
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if (!$this->canBeComparedAsIterables()) { |
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throw new \RuntimeException(sprintf('%s can only be called on iterable properties changesets.', __METHOD__)); |
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} |
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$this->computeAdditionsAndRemovals(); |
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return [] !== $this->removals; |
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} |
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/** |
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* @param $value |
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* @return bool |
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*/ |
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private function isNullOrIterable($value): bool |
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{ |
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return null === $value || \is_iterable($value); |
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} |
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/** |
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* @param $oldValue |
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* @param $newValue |
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* @return bool |
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*/ |
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private function canBeComparedAsIterables(): bool |
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{ |
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return $this->isNullOrIterable($this->oldValue) && $this->isNullOrIterable($this->newValue); |
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} |
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/** |
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* |
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*/ |
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private function computeAdditionsAndRemovals(): void |
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{ |
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if (null !== $this->additions) { |
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return; |
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} |
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$old = iterable_to_array($this->oldValue ?? []); |
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$new = iterable_to_array($this->newValue ?? []); |
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if (!$this->isSequential($old) && !$this->isSequential($new)) { |
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$this->additions = $this->diff($new, $old); |
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$this->removals = $this->diff($old, $new); |
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return; |
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} |
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$this->additions = \array_values($this->diff($new, $old)); |
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$this->removals = \array_values($this->diff($old, $new)); |
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} |
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/** |
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* @param array $array |
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* @return bool |
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*/ |
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private function isSequential(array $array): bool |
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{ |
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return isset($array[0]) && \array_keys($array) === \range(0, \count($array) - 1); |
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} |
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/** |
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* @param array $a |
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* @param array $b |
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* @return array |
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*/ |
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private function diff(array $a, array $b): array |
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{ |
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return \array_filter($a, function ($item) use ($b) { |
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return !\in_array($item, $b, true); |
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}); |
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} |
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} |
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bpolaszek /
doctrine-watcher
