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<?php |
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/** |
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* @author Gerard van Helden <[email protected]> |
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* @copyright Zicht Online <http://zicht.nl> |
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*/ |
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namespace Zicht\Bundle\UrlBundle\Form\DataTransformer; |
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use Symfony\Component\Form\DataTransformerInterface; |
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use Zicht\Bundle\UrlBundle\Aliasing\Aliasing; |
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use Zicht\Bundle\UrlBundle\Aliasing\Mapper\UrlMapperInterface; |
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/** |
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* Provides a Template Method pattern for implementing different mapping types |
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* |
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* @package Zicht\Bundle\UrlBundle\Form\DataTransformer |
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*/ |
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abstract class AbstractAliasingTransformer implements DataTransformerInterface |
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{ |
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/** @var Aliasing */ |
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protected $aliasing; |
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/** @var int */ |
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protected $mode; |
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/** Mode bit for transform method */ |
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const MODE_TO_PUBLIC = 1; |
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/** Mode bit for reverseTransform method */ |
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const MODE_TO_INTERNAL = 2; |
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/** |
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* AliasToInternalUrlTransformer constructor. |
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* |
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* @param Aliasing $aliasing |
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* @param int $mode |
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*/ |
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public function __construct(Aliasing $aliasing, $mode = self::MODE_TO_PUBLIC|self::MODE_TO_INTERNAL) |
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{ |
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$this->aliasing = $aliasing; |
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$this->mode = $mode; |
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} |
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/** |
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* Transforms a string containing internal urls to string to public urls. |
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* |
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* @param string $data |
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* @return null|string |
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*/ |
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public function transform($data) |
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{ |
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if (self::MODE_TO_PUBLIC === (self::MODE_TO_PUBLIC & $this->mode)) { |
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return $this->map($data, UrlMapperInterface::MODE_INTERNAL_TO_PUBLIC); |
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} else { |
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return $data; |
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} |
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} |
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/** |
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* Tranforms a string containing public urls to string with internal urls. |
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* |
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* @param string $data |
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* @return null|string |
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*/ |
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public function reverseTransform($data) |
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{ |
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if (self::MODE_TO_INTERNAL === (self::MODE_TO_INTERNAL & $this->mode)) { |
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return $this->map($data, UrlMapperInterface::MODE_PUBLIC_TO_INTERNAL); |
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} else { |
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return $data; |
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} |
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} |
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/** |
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* Wraps the doMap to defend for the 'null'-value case |
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* |
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* @param string $data |
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* @param string $mode |
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* @return string |
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*/ |
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final public function map($data, $mode) |
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{ |
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if (null === $data) { |
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return $data; |
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} |
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return $this->doMap($data, $mode); |
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} |
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/** |
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* Implement the actual mapping with the specified mode. |
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* |
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* @param string $data |
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* @param string $mode |
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* @return string |
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*/ |
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abstract protected function doMap($data, $mode); |
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} |
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zicht /
url-bundle
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