moodle/admin/roles/classes/assign_user_selector_base.php

<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.

/**
 * Library code used by the roles administration interfaces.
 *
 * @package    core_role
 * @copyright  1999 onwards Martin Dougiamas (http://dougiamas.com)
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

defined('MOODLE_INTERNAL') || die();

require_once($CFG->dirroot.'/user/selector/lib.php');

/**
 * Base class to avoid duplicating code.
 */
abstract class core_role_assign_user_selector_base extends user_selector_base {
    protected $roleid;
    protected $context;

    /**
     * @param string $name control name
     * @param array $options should have two elements with keys groupid and courseid.
     */
    public function __construct($name, $options) {
        global $CFG;
        if (isset($options['context'])) {
            $this->context = $options['context'];
        } else {
            $this->context = context::instance_by_id($options['contextid']);
        }
        $options['accesscontext'] = $this->context;
        parent::__construct($name, $options);
        $this->roleid = $options['roleid'];
        require_once($CFG->dirroot . '/group/lib.php');
    }

    protected function get_options() {
        global $CFG;
        $options = parent::get_options();
        $options['file'] = $CFG->admin . '/roles/lib.php';
        $options['roleid'] = $this->roleid;
        $options['contextid'] = $this->context->id;
        return $options;
    }
}