api_v3_CaseType - Tweak edge cases

[civicrm-core.git] / Civi / CCase / Events.php

<?php
/*
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 | CiviCRM version 4.5                                                |
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 | Copyright CiviCRM LLC (c) 2004-2014                                |
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*/
namespace Civi\CCase;

class Events {
  /**
   * @var array (int $caseId => bool $active) list of cases for which we are actively firing case-change event
   *
   * We do not want to fire case-change events recursively.
   */
  static $isActive = array();

  /**
   * Following a change to an activity or case, fire the case-change event.
   *
   * @param \Civi\Core\Event\PostEvent $event
   * @throws \CRM_Core_Exception
   */
  public static function fireCaseChange(\Civi\Core\Event\PostEvent $event) {
    $caseId = NULL;
    switch ($event->entity) {
      case 'Activity':
        if (!empty($event->object->case_id)) {
          $caseId = $event->object->case_id;
        }
        break;
      case 'Case':
        $caseId = $event->id;
        break;
      default:
        throw new \CRM_Core_Exception("CRM_Case_Listener does not support entity {$event->entity}");
    }

    if ($caseId && !isset(self::$isActive[$caseId])) {
      self::$isActive[$caseId] = 1;
      $analyzer = new \Civi\CCase\Analyzer($caseId);
      \CRM_Utils_Hook::caseChange($analyzer);
      unset(self::$isActive[$caseId]);
    }
  }

  /**
   * Find any extra listeners declared in XML and pass the event along to them
   *
   * @param Event\CaseChangeEvent $event
   */
  public static function delegateToXmlListeners(\Civi\CCase\Event\CaseChangeEvent $event) {
    $p = new \CRM_Case_XMLProcessor_Process();
    $listeners = $p->getListeners($event->analyzer->getCaseType());
    foreach ($listeners as $listener) {
      /** @var $listener \Civi\CCase\CaseChangeListener */
      $listener->onCaseChange($event);
    }
  }
}