source: moodle/trunk/fuentes/admin/roles/classes/admins_potential_selector.php @ 136

Last change on this file since 136 was 136, checked in by mabarracus, 4 years ago

Ported code to xenial

File size: 3.1 KB
Line 
1<?php
2// This file is part of Moodle - http://moodle.org/
3//
4// Moodle is free software: you can redistribute it and/or modify
5// it under the terms of the GNU General Public License as published by
6// the Free Software Foundation, either version 3 of the License, or
7// (at your option) any later version.
8//
9// Moodle is distributed in the hope that it will be useful,
10// but WITHOUT ANY WARRANTY; without even the implied warranty of
11// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12// GNU General Public License for more details.
13//
14// You should have received a copy of the GNU General Public License
15// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
16
17/**
18 * Potential admin user selector.
19 *
20 * @package    core_role
21 * @copyright  2010 Petr Skoda {@link http://skodak.org}
22 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
23 */
24
25defined('MOODLE_INTERNAL') || die();
26
27require_once($CFG->dirroot.'/user/selector/lib.php');
28
29class core_role_admins_potential_selector extends user_selector_base {
30    /**
31     * Create instance.
32     *
33     * @param string $name control name
34     * @param array $options should have two elements with keys groupid and courseid.
35     */
36    public function __construct($name = null, $options = array()) {
37        global $CFG;
38        if (is_null($name)) {
39            $name = 'addselect';
40        }
41        $options['multiselect'] = false;
42        $options['exclude'] = explode(',', $CFG->siteadmins);
43        parent::__construct($name, $options);
44    }
45
46    public function find_users($search) {
47        global $CFG, $DB;
48        list($wherecondition, $params) = $this->search_sql($search, '');
49
50        $fields      = 'SELECT ' . $this->required_fields_sql('');
51        $countfields = 'SELECT COUNT(1)';
52
53        $sql = " FROM {user}
54                WHERE $wherecondition AND mnethostid = :localmnet";
55
56        // It could be dangerous to make remote users admins and also this could lead to other problems.
57        $params['localmnet'] = $CFG->mnet_localhost_id;
58
59        list($sort, $sortparams) = users_order_by_sql('', $search, $this->accesscontext);
60        $order = ' ORDER BY ' . $sort;
61
62        // Check to see if there are too many to show sensibly.
63        if (!$this->is_validating()) {
64            $potentialcount = $DB->count_records_sql($countfields . $sql, $params);
65            if ($potentialcount > $this->maxusersperpage) {
66                return $this->too_many_results($search, $potentialcount);
67            }
68        }
69
70        $availableusers = $DB->get_records_sql($fields . $sql . $order, array_merge($params, $sortparams));
71
72        if (empty($availableusers)) {
73            return array();
74        }
75
76        if ($search) {
77            $groupname = get_string('potusersmatching', 'core_role', $search);
78        } else {
79            $groupname = get_string('potusers', 'core_role');
80        }
81
82        return array($groupname => $availableusers);
83    }
84
85    protected function get_options() {
86        global $CFG;
87        $options = parent::get_options();
88        $options['file'] = $CFG->admin . '/roles/lib.php';
89        return $options;
90    }
91}
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