New Method get usersInGroup

Author: chmst

administrator/components/com_users/src/Model/GroupModel.php

@@ -21,6 +21,7 @@
 use Joomla\CMS\Object\CMSObject;
 use Joomla\CMS\Plugin\PluginHelper;
 use Joomla\CMS\Table\Table;
+use Joomla\Database\ParameterType;
 use Joomla\String\StringHelper;
 use Joomla\Utilities\ArrayHelper;
 
@@ -344,4 +345,44 @@ protected function generateGroupTitle($parentId, $title)
 
         return $title;
     }
+
+    /**
+     * Method to get all users in a group.
+     *
+     * @param   integer  $groupId  The id of the group.
+     *
+     * @return  array  Returns an array of users on success, an empty array on failure.
+     *
+     * @since   __DEPLOY_VERSION__
+     */
+    public function getUsersInGroup($groupId)
+    {
+        $db = $this->getDatabase();
+
+        // Get the userId's in the group
+        $db->setQuery(
+            $db->getQuery(true)
+                ->select($db->quoteName('user_id'))
+                ->from($db->quoteName('#__user_usergroup_map'))
+                ->where($db->quoteName('group_id') . ' = :id')
+                ->bind(':id', $groupId, ParameterType::INTEGER)
+        );
+
+        $group = $db->loadColumn(); 
+
+        if (empty($group)) {
+            // No users in the group
+            return [];
+        }
+
+        // Get the users information of the users in the group
+        $query = $db->getQuery(true)
+            ->select($db->quoteName(['id', 'name', 'username', 'email', 'block', 'sendEmail', 'params']))
+            ->from($db->quoteName('#__users'))
+            ->whereIn($db->quoteName('id'), $group);
+
+        $db->setQuery($query);
+
+        return $db->loadObjectList();
+    }
 }