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<?php |
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namespace Psr7Middlewares\Utils; |
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use Psr\Http\Message\ServerRequestInterface; |
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use Psr7Middlewares\Middleware; |
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use RuntimeException; |
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/** |
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* Trait to save middleware related things in the current session. |
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*/ |
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trait StorageTrait |
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{ |
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use AttributeTrait; |
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/** |
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* Init the storage array. |
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* |
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* @param ServerRequestInterface $request |
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* @param array $storage |
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* |
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* @return ServerRequestInterface |
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*/ |
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private static function initStorage(ServerRequestInterface $request, array $storage) |
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{ |
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return self::setAttribute($request, Middleware::STORAGE_KEY, $storage); |
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} |
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/** |
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* Returns the value of a storage array. |
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* |
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* @param ServerRequestInterface $request |
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* @param string|null $key |
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* |
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* @return mixed |
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*/ |
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private static function getStorage(ServerRequestInterface $request, $key = null) |
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{ |
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if (!self::hasAttribute($request, Middleware::STORAGE_KEY)) { |
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throw new RuntimeException('No session storage initialized'); |
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} |
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$storage = self::getAttribute($request, Middleware::STORAGE_KEY); |
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if ($key === null) { |
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return $storage; |
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} |
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return isset($storage[$key]) ? $storage[$key] : null; |
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} |
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/** |
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* Returns the value of a storage array. |
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* |
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* @param ServerRequestInterface $request |
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* @param string $key |
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* @param mixed $value |
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* |
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* @return ServerRequestInterface |
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*/ |
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private static function setStorage(ServerRequestInterface $request, $key, $value) |
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{ |
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if (!self::hasAttribute($request, Middleware::STORAGE_KEY)) { |
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throw new RuntimeException('No session storage initialized'); |
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} |
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$storage = self::getAttribute($request, Middleware::STORAGE_KEY); |
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$storage[$key] = $value; |
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return self::setAttribute($request, Middleware::STORAGE_KEY, $storage); |
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} |
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} |
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oscarotero /
psr7-middlewares
