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<?php |
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/** |
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* Created by Marcin. |
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* Date: 16.06.2018 |
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* Time: 13:58 |
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*/ |
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namespace Mrcnpdlk\Lib\UrlSearchParser\Criteria; |
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use ArrayIterator; |
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use IteratorAggregate; |
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use Mrcnpdlk\Lib\UrlSearchParser\Exception\DuplicateParamException; |
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use Mrcnpdlk\Lib\UrlSearchParser\Exception\EmptyParamException; |
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use Traversable; |
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/** |
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* Class Sort |
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*/ |
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class Sort implements IteratorAggregate |
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{ |
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public const DIRECTION_ASC = 'ASC'; |
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public const DIRECTION_DESC = 'DESC'; |
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public const DELIMITER = ','; |
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public const DESC_IDENTIFIER = '-'; |
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/** |
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* @var \Mrcnpdlk\Lib\UrlSearchParser\Criteria\SortParam[] |
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*/ |
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private $sortParams = []; |
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/** |
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* Sort constructor. |
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* |
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* @param string|null $sortString |
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* |
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* @throws \Mrcnpdlk\Lib\UrlSearchParser\Exception\DuplicateParamException |
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* @throws \Mrcnpdlk\Lib\UrlSearchParser\Exception\EmptyParamException |
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* @throws \Mrcnpdlk\Lib\UrlSearchParser\Exception\InvalidParamException |
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*/ |
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public function __construct(string $sortString = null) |
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{ |
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/** |
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* @var string[] |
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* @var string $param |
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*/ |
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$tParams = $sortString ? explode(self::DELIMITER, $sortString) : []; |
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foreach ($tParams as $param) { |
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if (empty($param)) { |
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throw new EmptyParamException(sprintf('Empty SORT param')); |
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} |
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if (self::DESC_IDENTIFIER === $param[0]) { |
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$param = substr($param, 1); |
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if (empty($param)) { |
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throw new EmptyParamException(sprintf('Empty SORT param')); |
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} |
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$this->appendParam(new SortParam($param, self::DIRECTION_DESC)); |
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} else { |
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$this->appendParam(new SortParam($param, self::DIRECTION_ASC)); |
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} |
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} |
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} |
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/** |
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* @param \Mrcnpdlk\Lib\UrlSearchParser\Criteria\SortParam $sortParam |
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* |
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* @throws \Mrcnpdlk\Lib\UrlSearchParser\Exception\DuplicateParamException |
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* |
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* @return \Mrcnpdlk\Lib\UrlSearchParser\Criteria\Sort |
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*/ |
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public function appendParam(SortParam $sortParam): Sort |
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{ |
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if ($this->isExists($sortParam->param)) { |
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throw new DuplicateParamException(sprintf('Duplicate Sort param `%s`', $sortParam->param)); |
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} |
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$this->sortParams[] = $sortParam; |
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return $this; |
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} |
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/** |
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* @param string $paramName |
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* |
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* @return \Mrcnpdlk\Lib\UrlSearchParser\Criteria\SortParam[] |
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*/ |
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public function getByParamName(string $paramName): array |
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{ |
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$params = []; |
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foreach ($this->sortParams as $param) { |
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if ($param->param === $paramName) { |
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$params[] = $param; |
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} |
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} |
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return $params; |
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} |
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/** |
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* Retrieve an external iterator |
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* |
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* @see http://php.net/manual/en/iteratoraggregate.getiterator.php |
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* |
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* @return Traversable An instance of an object implementing <b>Iterator</b> or |
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* <b>Traversable</b> |
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* |
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* @since 5.0.0 |
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*/ |
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public function getIterator(): Traversable |
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{ |
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return new ArrayIterator($this->sortParams); |
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} |
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/** |
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* @param string $paramName |
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* |
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* @return bool |
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*/ |
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public function isExists(string $paramName): bool |
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{ |
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foreach ($this->sortParams as $param) { |
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if ($param->param === $paramName) { |
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return true; |
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} |
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} |
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return false; |
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} |
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/** |
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* @param \Mrcnpdlk\Lib\UrlSearchParser\Criteria\SortParam $sortParam |
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* |
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* @throws \Mrcnpdlk\Lib\UrlSearchParser\Exception\DuplicateParamException |
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* |
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* @return \Mrcnpdlk\Lib\UrlSearchParser\Criteria\Sort |
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*/ |
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public function replaceParam(SortParam $sortParam): Sort |
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{ |
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$isChanged = false; |
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foreach ($this->sortParams as &$param) { |
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if ($param->param === $sortParam->param) { |
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$param->direction = $sortParam->direction; |
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$isChanged = true; |
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} |
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} |
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unset($param); |
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if (!$isChanged) { |
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$this->appendParam($sortParam); |
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} |
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return $this; |
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} |
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/** |
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* @return \Mrcnpdlk\Lib\UrlSearchParser\Criteria\SortParam[] |
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*/ |
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public function toArray(): array |
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{ |
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return $this->sortParams; |
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} |
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} |
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mrcnpdlk /
url-search-parser
