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<?php |
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namespace Nayjest\Collection\Extended; |
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use mp; |
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/** |
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* Implementation of methods added in ObjectCollectionReadInterface. |
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* |
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* ObjectCollectionTrait requires implementation of \Nayjest\Collection\CollectionReadInterface. |
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*/ |
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trait ObjectCollectionTrait |
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{ |
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/** |
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* @param callable $callback |
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* @param array|null $optionalArguments |
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* @return static |
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*/ |
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abstract public function find(callable $callback, array $optionalArguments = null); |
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/** |
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* @param callable $callback |
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* @param array|null $optionalArguments |
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* @return static |
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*/ |
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abstract public function filter(callable $callback, array $optionalArguments = null); |
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/** |
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* @param callable $compareFunction |
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* @return static |
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*/ |
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abstract public function sort(callable $compareFunction); |
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/** |
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* @param string $className |
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* |
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* @return mixed |
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*/ |
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public function findByType($className) |
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{ |
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return $this->find('is_a', [$className]); |
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} |
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/** |
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* @param string $className |
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* @return static |
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*/ |
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public function filterByType($className) |
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{ |
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return $this->filter('is_a', [$className]); |
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} |
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/** |
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* @param string $propertyName |
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* @param $value |
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* @param bool $useGetters |
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* @return static |
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*/ |
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public function filterByProperty($propertyName, $value, $useGetters = false) |
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{ |
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return $this->filter( |
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$this->getPropertyComparator($propertyName, $value, $useGetters) |
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); |
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} |
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/** |
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* @param string $propertyName |
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* @param $value |
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* @param bool $useGetters |
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* @return mixed |
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*/ |
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public function findByProperty($propertyName, $value, $useGetters = false) |
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{ |
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return $this->find( |
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$this->getPropertyComparator($propertyName, $value, $useGetters) |
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); |
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} |
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/** |
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* @param string $propertyName |
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* @return static |
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*/ |
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public function sortByProperty($propertyName) |
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{ |
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return $this->sort(function ($itemA, $itemB) use ($propertyName) { |
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$a = mp\getValue($itemA, $propertyName, 0); |
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$b = mp\getValue($itemB, $propertyName, 0); |
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if ($a < $b) { |
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return -1; |
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} |
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return ($a > $b) ? 1 : 0; |
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}); |
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} |
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private function getPropertyComparator($propertyName, $value, $useGetters) |
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{ |
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if ($useGetters) { |
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return function ($item) use ($propertyName, $value) { |
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// NAN used as default because NAN !== NAN |
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return mp\getValue($item, $propertyName, NAN) === $value; |
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}; |
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} else { |
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return function ($item) use ($propertyName, $value) { |
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return isset($item->{$propertyName}) && $item->{$propertyName} === $value; |
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}; |
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} |
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} |
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/** |
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* Returns array indexed by specified property of collection elements. |
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* If there is few elements with same property value, last will be used. |
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* |
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* @param string $propertyName |
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* @return array|object[] |
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*/ |
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public function indexByProperty($propertyName) |
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{ |
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$results = []; |
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foreach($this as $item) { |
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$key = mp\getValue($item, $propertyName); |
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if ($key) { |
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$results[$key] = $item; |
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} |
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} |
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return $results; |
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} |
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} |
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Nayjest /
Collection
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