first commit

administrator/components/com_messages/src/Field/UserMessagesField.php

@@ -0,0 +1,89 @@
+<?php
+
+/**
+ * @package     Joomla.Administrator
+ * @subpackage  com_messages
+ *
+ * @copyright   (C) 2010 Open Source Matters, Inc. <https://www.joomla.org>
+ * @license     GNU General Public License version 2 or later; see LICENSE.txt
+ */
+
+namespace Joomla\Component\Messages\Administrator\Field;
+
+use Joomla\CMS\Access\Access;
+use Joomla\CMS\Factory;
+use Joomla\CMS\Form\Field\UserField;
+
+// phpcs:disable PSR1.Files.SideEffects
+\defined('_JEXEC') or die;
+// phpcs:enable PSR1.Files.SideEffects
+
+/**
+ * Supports a modal select of users that have access to com_messages
+ *
+ * @since  1.6
+ */
+class UserMessagesField extends UserField
+{
+    /**
+     * The form field type.
+     *
+     * @var     string
+     * @since   1.6
+     */
+    public $type = 'UserMessages';
+
+    /**
+     * Method to get the filtering groups (null means no filtering)
+     *
+     * @return  array|null  array of filtering groups or null.
+     *
+     * @since   1.6
+     */
+    protected function getGroups()
+    {
+        // Compute usergroups
+        $db    = $this->getDatabase();
+        $query = $db->getQuery(true)
+            ->select('id')
+            ->from('#__usergroups');
+        $db->setQuery($query);
+
+        try {
+            $groups = $db->loadColumn();
+        } catch (\RuntimeException $e) {
+            Factory::getApplication()->enqueueMessage($e->getMessage(), 'notice');
+
+            return null;
+        }
+
+        foreach ($groups as $i => $group) {
+            if (Access::checkGroup($group, 'core.admin')) {
+                continue;
+            }
+
+            if (!Access::checkGroup($group, 'core.manage', 'com_messages')) {
+                unset($groups[$i]);
+                continue;
+            }
+
+            if (!Access::checkGroup($group, 'core.login.admin')) {
+                unset($groups[$i]);
+            }
+        }
+
+        return array_values($groups);
+    }
+
+    /**
+     * Method to get the users to exclude from the list of users
+     *
+     * @return  array|null array of users to exclude or null to not exclude them
+     *
+     * @since   1.6
+     */
+    protected function getExcluded()
+    {
+        return [Factory::getUser()->id];
+    }
+}