skeeks\cms\controllers\AdminUserController::actionRoleSearch PHP Method

    public function actionRoleSearch($id, $target, $term = '')
    {
        $authManager = Yii::$app->authManager;
        $avaliable = [];
        $assigned = [];
        foreach ($authManager->getRolesByUser($id) as $role) {
            $type = $role->type;
            $assigned[$type == Item::TYPE_ROLE ? 'Roles' : 'Permissions'][$role->name] = $role->name;
        }
        foreach ($authManager->getRoles() as $role) {
            if (!isset($assigned['Roles'][$role->name])) {
                $avaliable['Roles'][$role->name] = $role->name;
            }
        }
        foreach ($authManager->getPermissions() as $role) {
            if ($role->name[0] !== '/' && !isset($assigned['Permissions'][$role->name])) {
                $avaliable['Permissions'][$role->name] = $role->name;
            }
        }
        $result = [];
        $var = ${$target};
        if (!empty($term)) {
            foreach (['Roles', 'Permissions'] as $type) {
                if (isset($var[$type])) {
                    foreach ($var[$type] as $role) {
                        if (strpos($role, $term) !== false) {
                            $result[$type][$role] = $role;
                        }
                    }
                }
            }
        } else {
            $result = $var;
        }
        return Html::renderSelectOptions('', $result);
    }