Proyectos de Subversion Moodle

<?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/>.

/**

 * Existing admin user selector.

 *

 * @package    core_role

 * @copyright  2010 Petr Skoda {@link http://skodak.org}

 * @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');

class core_role_admins_existing_selector extends user_selector_base {

    /**

     * Create instance.

     *

     * @param string $name control name

     * @param array $options should have two elements with keys groupid and courseid.

     */

    public function __construct($name = null, $options = array()) {

        if (is_null($name)) {

            $name = 'removeselect';

        }

        $options['includecustomfields'] = true;

        parent::__construct($name, $options);

    }

    public function find_users($search) {

        global $DB, $CFG;

        [$wherecondition, $params] = $this->search_sql($search, 'u');

        $params = array_merge($params, $this->userfieldsparams);

        $fields = 'SELECT u.id, ' . $this->userfieldsselects;

        if ($wherecondition) {

            $wherecondition = "$wherecondition AND u.id IN ($CFG->siteadmins)";

        } else {

            $wherecondition = "u.id IN ($CFG->siteadmins)";

        }

        $sql = " FROM {user} u

                      $this->userfieldsjoin

                WHERE $wherecondition";

        [$sort, $sortparams] = users_order_by_sql('u', $search, $this->accesscontext, $this->userfieldsmappings);

        $params = array_merge($params, $sortparams);

        // Sort first by email domain and then by normal name order.

        $order = " ORDER BY " . $DB->sql_substr('email', $DB->sql_position("'@'", 'email'),

            $DB->sql_length('email') ) .  ", $sort";

        $availableusers = $DB->get_records_sql($fields . $sql . $order, $params);

        if (empty($availableusers)) {

            return array();

        }

        $mainadmin = array();

        $mainadminuser = get_admin();

        if ($mainadminuser && isset($availableusers[$mainadminuser->id])) {

            $mainadmin = array($mainadminuser->id => $availableusers[$mainadminuser->id]);

            unset($availableusers[$mainadminuser->id]);

        }

        $result = array();

        if ($mainadmin) {

            $result[get_string('mainadmin', 'core_role')] = $mainadmin;

        }

        if ($availableusers) {

            if ($search) {

                $groupname = get_string('extusersmatching', 'core_role', $search);

                $result[$groupname] = $availableusers;

            } else {

                $groupnameprefix = get_string('extusers', 'core_role');

                foreach ($availableusers as $user) {

                    if (isset($user->email)) {

                        $domain = substr($user->email, strpos($user->email, '@'));

                        $groupname = "$groupnameprefix $domain";

                    } else {

                        $groupname = $groupnameprefix;

                    }

                    $result[$groupname][] = $user;

                }

            }

        }

        return $result;

    }

    protected function get_options() {

        global $CFG;

        $options = parent::get_options();

        $options['file'] = $CFG->admin . '/roles/lib.php';

        return $options;

    }

}