[Summary view]

   1  <?php
   2  
   3  /*
   4   * This file is part of Mustache.php.
   5   *
   6   * (c) 2010-2017 Justin Hileman
   7   *
   8   * For the full copyright and license information, please view the LICENSE
   9   * file that was distributed with this source code.
  10   */
  11  
  12  /**
  13   * A Mustache Template cascading loader implementation, which delegates to other
  14   * Loader instances.
  15   */
  16  class Mustache_Loader_CascadingLoader implements Mustache_Loader
  17  {
  18      private $loaders;
  19  
  20      /**
  21       * Construct a CascadingLoader with an array of loaders.
  22       *
  23       *     $loader = new Mustache_Loader_CascadingLoader(array(
  24       *         new Mustache_Loader_InlineLoader(__FILE__, __COMPILER_HALT_OFFSET__),
  25       *         new Mustache_Loader_FilesystemLoader(__DIR__.'/templates')
  26       *     ));
  27       *
  28       * @param Mustache_Loader[] $loaders
  29       */
  30      public function __construct(array $loaders = array())
  31      {
  32          $this->loaders = array();
  33          foreach ($loaders as $loader) {
  34              $this->addLoader($loader);
  35          }
  36      }
  37  
  38      /**
  39       * Add a Loader instance.
  40       *
  41       * @param Mustache_Loader $loader
  42       */
  43      public function addLoader(Mustache_Loader $loader)
  44      {
  45          $this->loaders[] = $loader;
  46      }
  47  
  48      /**
  49       * Load a Template by name.
  50       *
  51       * @throws Mustache_Exception_UnknownTemplateException If a template file is not found
  52       *
  53       * @param string $name
  54       *
  55       * @return string Mustache Template source
  56       */
  57      public function load($name)
  58      {
  59          foreach ($this->loaders as $loader) {
  60              try {
  61                  return $loader->load($name);
  62              } catch (Mustache_Exception_UnknownTemplateException $e) {
  63                  // do nothing, check the next loader.
  64              }
  65          }
  66  
  67          throw new Mustache_Exception_UnknownTemplateException($name);
  68      }
  69  }