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- <?php
- /*
- * This file is part of the Symfony package.
- *
- * (c) Fabien Potencier <fabien@symfony.com>
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
- namespace Symfony\Component\Templating\Loader;
- use Symfony\Component\Templating\Storage\Storage;
- use Symfony\Component\Templating\TemplateReferenceInterface;
- /**
- * ChainLoader is a loader that calls other loaders to load templates.
- *
- * @author Fabien Potencier <fabien@symfony.com>
- */
- class ChainLoader extends Loader
- {
- protected $loaders = array();
- /**
- * Constructor.
- *
- * @param LoaderInterface[] $loaders An array of loader instances
- */
- public function __construct(array $loaders = array())
- {
- foreach ($loaders as $loader) {
- $this->addLoader($loader);
- }
- }
- /**
- * Adds a loader instance.
- *
- * @param LoaderInterface $loader A Loader instance
- */
- public function addLoader(LoaderInterface $loader)
- {
- $this->loaders[] = $loader;
- }
- /**
- * Loads a template.
- *
- * @param TemplateReferenceInterface $template A template
- *
- * @return Storage|bool false if the template cannot be loaded, a Storage instance otherwise
- */
- public function load(TemplateReferenceInterface $template)
- {
- foreach ($this->loaders as $loader) {
- if (false !== $storage = $loader->load($template)) {
- return $storage;
- }
- }
- return false;
- }
- /**
- * Returns true if the template is still fresh.
- *
- * @param TemplateReferenceInterface $template A template
- * @param int $time The last modification time of the cached template (timestamp)
- *
- * @return bool
- */
- public function isFresh(TemplateReferenceInterface $template, $time)
- {
- foreach ($this->loaders as $loader) {
- return $loader->isFresh($template, $time);
- }
- return false;
- }
- }
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