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