Proyectos de Subversion Moodle

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<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
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/**
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 * Existing admin user selector.
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 *
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 * @package    core_role
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 * @copyright  2010 Petr Skoda {@link http://skodak.org}
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 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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 */
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defined('MOODLE_INTERNAL') || die();
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require_once($CFG->dirroot.'/user/selector/lib.php');
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class core_role_admins_existing_selector extends user_selector_base {
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    /**
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     * Create instance.
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     *
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     * @param string $name control name
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     * @param array $options should have two elements with keys groupid and courseid.
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     */
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    public function __construct($name = null, $options = array()) {
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        if (is_null($name)) {
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            $name = 'removeselect';
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        }
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        $options['includecustomfields'] = true;
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        parent::__construct($name, $options);
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    }
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    public function find_users($search) {
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        global $DB, $CFG;
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        [$wherecondition, $params] = $this->search_sql($search, 'u');
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        $params = array_merge($params, $this->userfieldsparams);
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        $fields = 'SELECT u.id, ' . $this->userfieldsselects;
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        if ($wherecondition) {
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            $wherecondition = "$wherecondition AND u.id IN ($CFG->siteadmins)";
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        } else {
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            $wherecondition = "u.id IN ($CFG->siteadmins)";
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        }
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        $sql = " FROM {user} u
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                      $this->userfieldsjoin
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                WHERE $wherecondition";
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        [$sort, $sortparams] = users_order_by_sql('u', $search, $this->accesscontext, $this->userfieldsmappings);
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        $params = array_merge($params, $sortparams);
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        // Sort first by email domain and then by normal name order.
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        $order = " ORDER BY " . $DB->sql_substr('email', $DB->sql_position("'@'", 'email'),
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            $DB->sql_length('email') ) .  ", $sort";
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        $availableusers = $DB->get_records_sql($fields . $sql . $order, $params);
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        if (empty($availableusers)) {
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            return array();
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        }
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        $mainadmin = array();
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        $mainadminuser = get_admin();
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        if ($mainadminuser && isset($availableusers[$mainadminuser->id])) {
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            $mainadmin = array($mainadminuser->id => $availableusers[$mainadminuser->id]);
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            unset($availableusers[$mainadminuser->id]);
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        }
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        $result = array();
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        if ($mainadmin) {
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            $result[get_string('mainadmin', 'core_role')] = $mainadmin;
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        }
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        if ($availableusers) {
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            if ($search) {
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                $groupname = get_string('extusersmatching', 'core_role', $search);
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                $result[$groupname] = $availableusers;
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            } else {
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                $groupnameprefix = get_string('extusers', 'core_role');
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                foreach ($availableusers as $user) {
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                    if (isset($user->email)) {
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                        $domain = substr($user->email, strpos($user->email, '@'));
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                        $groupname = "$groupnameprefix $domain";
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                    } else {
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                        $groupname = $groupnameprefix;
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                    }
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                    $result[$groupname][] = $user;
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                }
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            }
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        }
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        return $result;
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    }
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    protected function get_options() {
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        global $CFG;
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        $options = parent::get_options();
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        $options['file'] = $CFG->admin . '/roles/lib.php';
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        return $options;
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    }
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}