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   1  <?php
   2  
   3  /**
   4   * @package     Joomla.Administrator
   5   * @subpackage  com_messages
   6   *
   7   * @copyright   (C) 2010 Open Source Matters, Inc. <https://www.joomla.org>
   8   * @license     GNU General Public License version 2 or later; see LICENSE.txt
   9   */
  10  
  11  namespace Joomla\Component\Messages\Administrator\Field;
  12  
  13  use Joomla\CMS\Access\Access;
  14  use Joomla\CMS\Factory;
  15  use Joomla\CMS\Form\Field\UserField;
  16  
  17  // phpcs:disable PSR1.Files.SideEffects
  18  \defined('_JEXEC') or die;
  19  // phpcs:enable PSR1.Files.SideEffects
  20  
  21  /**
  22   * Supports a modal select of users that have access to com_messages
  23   *
  24   * @since  1.6
  25   */
  26  class UserMessagesField extends UserField
  27  {
  28      /**
  29       * The form field type.
  30       *
  31       * @var     string
  32       * @since   1.6
  33       */
  34      public $type = 'UserMessages';
  35  
  36      /**
  37       * Method to get the filtering groups (null means no filtering)
  38       *
  39       * @return  array|null  array of filtering groups or null.
  40       *
  41       * @since   1.6
  42       */
  43      protected function getGroups()
  44      {
  45          // Compute usergroups
  46          $db = $this->getDatabase();
  47          $query = $db->getQuery(true)
  48              ->select('id')
  49              ->from('#__usergroups');
  50          $db->setQuery($query);
  51  
  52          try {
  53              $groups = $db->loadColumn();
  54          } catch (\RuntimeException $e) {
  55              Factory::getApplication()->enqueueMessage($e->getMessage(), 'notice');
  56  
  57              return null;
  58          }
  59  
  60          foreach ($groups as $i => $group) {
  61              if (Access::checkGroup($group, 'core.admin')) {
  62                  continue;
  63              }
  64  
  65              if (!Access::checkGroup($group, 'core.manage', 'com_messages')) {
  66                  unset($groups[$i]);
  67                  continue;
  68              }
  69  
  70              if (!Access::checkGroup($group, 'core.login.admin')) {
  71                  unset($groups[$i]);
  72              }
  73          }
  74  
  75          return array_values($groups);
  76      }
  77  
  78      /**
  79       * Method to get the users to exclude from the list of users
  80       *
  81       * @return  array|null array of users to exclude or null to to not exclude them
  82       *
  83       * @since   1.6
  84       */
  85      protected function getExcluded()
  86      {
  87          return array(Factory::getUser()->id);
  88      }
  89  }