www.aleph1.co.uk Git - yaffs-website/blob - web/core/lib/Drupal/Core/Cache/CacheableResponseTrait.php

   1 <?php
   2
   3 namespace Drupal\Core\Cache;
   4
   5 /**
   6  * Provides an implementation of CacheableResponseInterface.
   7  *
   8  * @see \Drupal\Core\Cache\CacheableResponseInterface
   9  */
  10 trait CacheableResponseTrait {
  11
  12   /**
  13    * The cacheability metadata.
  14    *
  15    * @var \Drupal\Core\Cache\CacheableMetadata
  16    */
  17   protected $cacheabilityMetadata;
  18
  19   /**
  20    * {@inheritdoc}
  21    */
  22   public function addCacheableDependency($dependency) {
  23     // A trait doesn't have a constructor, so initialize the cacheability
  24     // metadata if that hasn't happened yet.
  25     if (!isset($this->cacheabilityMetadata)) {
  26       $this->cacheabilityMetadata = new CacheableMetadata();
  27     }
  28
  29     $this->cacheabilityMetadata = $this->cacheabilityMetadata->merge(CacheableMetadata::createFromObject($dependency));
  30
  31     return $this;
  32   }
  33
  34   /**
  35    * {@inheritdoc}
  36    */
  37   public function getCacheableMetadata() {
  38     // A trait doesn't have a constructor, so initialize the cacheability
  39     // metadata if that hasn't happened yet.
  40     if (!isset($this->cacheabilityMetadata)) {
  41       $this->cacheabilityMetadata = new CacheableMetadata();
  42     }
  43
  44     return $this->cacheabilityMetadata;
  45   }
  46
  47 }