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<?php |
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/** |
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* This file is part of the Version package. |
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* |
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* Copyright (c) Nikola Posa <[email protected]> |
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* |
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* For full copyright and license information, please refer to the LICENSE file, |
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* located at the package root folder. |
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*/ |
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namespace Version; |
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use Countable; |
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use IteratorAggregate; |
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use ArrayIterator; |
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use Version\Exception\InvalidArgumentException; |
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/** |
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* @author Nikola Posa <[email protected]> |
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*/ |
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final class VersionsCollection implements Countable, IteratorAggregate |
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{ |
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const SORT_ASC = 'ASC'; |
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const SORT_DESC = 'DESC'; |
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/** |
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* @var Version[] |
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*/ |
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private $versions = []; |
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/** |
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* @param array $versions |
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*/ |
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public function __construct(array $versions) |
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{ |
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foreach ($versions as $version) { |
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if (is_string($version)) { |
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$version = Version::fromString($version); |
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} elseif (!$version instanceof Version) { |
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throw new InvalidArgumentException(sprintf( |
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'Item in the versions array should be either string or Version instance, %s given', |
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gettype($version) |
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)); |
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} |
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$this->versions[] = $version; |
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} |
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} |
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/** |
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* @param array $versions |
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* @return self |
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*/ |
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public static function fromArray(array $versions) |
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{ |
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return new self($versions); |
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} |
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/** |
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* @return int |
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*/ |
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public function count() |
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{ |
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return count($this->versions); |
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} |
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/** |
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* @return \Iterator |
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*/ |
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public function getIterator() |
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{ |
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return new ArrayIterator($this->versions); |
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} |
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/** |
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* @param string|bool $direction OPTIONAL |
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* @return void |
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*/ |
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public function sort($direction = self::SORT_ASC) |
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{ |
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if (is_bool($direction)) { |
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//backwards-compatibility |
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$direction = (true === $direction) ? self::SORT_DESC : self::SORT_ASC; |
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} |
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usort($this->versions, function (Version $a, Version $b) use ($direction) { |
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$result = $a->compareTo($b); |
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if ($direction == self::SORT_DESC) { |
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$result *= -1; |
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} |
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return $result; |
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}); |
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} |
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} |
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nikolaposa /
version
