www.aleph1.co.uk Git - yaffs-website/blob - web/core/modules/content_moderation/src/StateTransitionValidation.php

   1 <?php
   2
   3 namespace Drupal\content_moderation;
   4
   5 use Drupal\Core\Entity\ContentEntityInterface;
   6 use Drupal\Core\Session\AccountInterface;
   7 use Drupal\workflows\Transition;
   8
   9 /**
  10  * Validates whether a certain state transition is allowed.
  11  */
  12 class StateTransitionValidation implements StateTransitionValidationInterface {
  13
  14   /**
  15    * The moderation information service.
  16    *
  17    * @var \Drupal\content_moderation\ModerationInformationInterface
  18    */
  19   protected $moderationInfo;
  20
  21   /**
  22    * Stores the possible state transitions.
  23    *
  24    * @var array
  25    */
  26   protected $possibleTransitions = [];
  27
  28   /**
  29    * Constructs a new StateTransitionValidation.
  30    *
  31    * @param \Drupal\content_moderation\ModerationInformationInterface $moderation_info
  32    *   The moderation information service.
  33    */
  34   public function __construct(ModerationInformationInterface $moderation_info) {
  35     $this->moderationInfo = $moderation_info;
  36   }
  37
  38   /**
  39    * {@inheritdoc}
  40    */
  41   public function getValidTransitions(ContentEntityInterface $entity, AccountInterface $user) {
  42     $workflow = $this->moderationInfo->getWorkflowForEntity($entity);
  43     $current_state = $entity->moderation_state->value ? $workflow->getState($entity->moderation_state->value) : $workflow->getTypePlugin()->getInitialState($workflow, $entity);
  44
  45     return array_filter($current_state->getTransitions(), function(Transition $transition) use ($workflow, $user) {
  46       return $user->hasPermission('use ' . $workflow->id() . ' transition ' . $transition->id());
  47     });
  48   }
  49
  50 }