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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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/** |
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* Trait to save middleware related things as request attributes. |
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*/ |
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trait AttributeTrait |
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{ |
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/** |
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* Store an attribute in the request. |
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* |
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* @param ServerRequestInterface $request |
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* @param string $name |
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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 setAttribute(ServerRequestInterface $request, $name, $value) |
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{ |
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$attributes = $request->getAttribute(Middleware::KEY, []); |
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$attributes[$name] = $value; |
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return $request->withAttribute(Middleware::KEY, $attributes); |
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} |
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/** |
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* Retrieves an attribute from the request. |
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* |
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* @param ServerRequestInterface $request |
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* @param string $name |
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* @param mixed|null $default |
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* |
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* @return mixed|null |
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*/ |
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private static function getAttribute(ServerRequestInterface $request, $name, $default = null) |
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{ |
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$attributes = $request->getAttribute(Middleware::KEY, []); |
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if (isset($attributes[$name])) { |
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return $attributes[$name]; |
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} |
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return $default; |
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} |
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/** |
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* Check whether an attribute exists. |
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* |
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* @param ServerRequestInterface $request |
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* @param string $name |
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* |
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* @return bool |
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*/ |
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private static function hasAttribute(ServerRequestInterface $request, $name) |
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{ |
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$attributes = $request->getAttribute(Middleware::KEY); |
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if (empty($attributes)) { |
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return false; |
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} |
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return array_key_exists($name, $attributes); |
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} |
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} |
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oscarotero /
psr7-middlewares
