moodle/enrol/mnet/enrol.php
David Mudrak 152a2273be MDL-22787 MNet: Fixing regressions in auth_mnet caused by changes in enrol_mnet
This smells - IMHO auth_enrol should not do anything with the enrolment
related information. These two plugins seem to be tied too much...
2010-07-17 22:34:12 +00:00

200 lines
7.5 KiB
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/>.
/**
* Implements the XML-RPC methods this plugin publishes to MNet peers
*
* This file must be named enrol.php because current MNet framework has the
* filename hardcoded in XML-RPC path and we want to be compatible with
* Moodle 1.x MNet clients. There is a proposal in MDL-21993 to allow
* map XMP-RPC calls to whatever file, function, class or methods. Once this
* is fixed, this file will be probably renamed to mnetlib.php (which could
* be a common name of a plugin library containing functions/methods callable
* via MNet framework.
*
* @package enrol
* @subpackage mnet
* @copyright 2010 David Mudrak <david@moodle.com>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
defined('MOODLE_INTERNAL') || die();
defined('MNET_SERVER') || die();
/**
* MNet server-side methods that are part of mnetservice_enrol
*
* The weird name of the class tries to follow a pattern
* {plugintype}_{pluginnname}_mnetservice_{servicename}
*
* Class methods are compatible with API 1 of the service used by Moodle 1.x
* and 2.0 peers. The API version might become a part of class name but it is
* not neccessary due to how xml-rcp methods are/will be mapped to php methods.
*/
class enrol_mnet_mnetservice_enrol {
/**
* Returns list of courses that we offer to the caller for remote enrolment of their users
*
* Since Moodle 2.0, courses are made available for MNet peers by creating an instance
* of enrol_mnet plugin for the course. Hidden courses are not returned. If there are two
* instances - one specific for the host and one for 'All hosts', the setting of the specific
* one is used. The id of the peer is kept in customint1, no other custom fields are used.
*
* @uses mnet_remote_client Callable via XML-RPC only
* @return array
*/
public function available_courses() {
global $CFG, $DB;
require_once($CFG->libdir.'/filelib.php');
if (!$client = get_mnet_remote_client()) {
die('Callable via XML-RPC only');
}
// we call our id as 'remoteid' because it will be sent to the peer
// the column aliases are required by MNet protocol API for clients 1.x and 2.0
$sql = "SELECT c.id AS remoteid, c.fullname, c.shortname, c.idnumber, c.summary, c.summaryformat,
c.sortorder, c.startdate, cat.id AS cat_id, cat.name AS cat_name,
cat.description AS cat_description, cat.descriptionformat AS cat_descriptionformat,
e.cost, e.currency, e.roleid AS defaultroleid, r.name AS defaultrolename,
e.customint1
FROM {enrol} e
INNER JOIN {course} c ON c.id = e.courseid
INNER JOIN {course_categories} cat ON cat.id = c.category
INNER JOIN {role} r ON r.id = e.roleid
WHERE e.enrol = 'mnet'
AND (e.customint1 = 0 OR e.customint1 = ?)
AND c.visible = 1
ORDER BY cat.sortorder, c.sortorder, c.shortname";
$rs = $DB->get_recordset_sql($sql, array($client->id));
$courses = array();
foreach ($rs as $course) {
// use the record if it does not exist yet or is host-specific
if (empty($courses[$course->remoteid]) or ($course->customint1 > 0)) {
unset($course->customint1); // the client does not need to know this
$context = get_context_instance(CONTEXT_COURSE, $course->remoteid);
// Rewrite file URLs so that they are correct
$course->summary = file_rewrite_pluginfile_urls($course->summary, 'pluginfile.php', $context->id, 'course', 'summary');
$courses[$course->remoteid] = $course;
}
}
$rs->close();
return array_values($courses); // can not use keys for backward compatibility
}
/**
* TODO: short description.
*
* @return TODO
*/
public function user_enrolments() {
return array();
}
/**
* TODO: short description.
*
* @return TODO
*/
public function enrol_user() {
return false;
}
/**
* TODO: short description.
*
* @return TODO
*/
public function unenrol_user() {
return false;
}
/**
* Returns a list of users from the client server who are enrolled in our course
*
* Suitable instance of enrol_mnet must be created in the course. This method will not
* return any information about the enrolments in courses that are not available for
* remote enrolment, even if their users are enrolled into them via other plugin
* (note the difference from {@link self::user_enrolments()}).
*
* This method will return enrolment information for users from hosts regardless
* the enrolment plugin. It does not matter if the user was enrolled remotely by
* their admin or locally. Once the course is available for remote enrolments, we
* will tell them everything about their users.
*
* In Moodle 1.x the returned array used to be indexed by username. The side effect
* of MDL-19219 fix is that we do not need to use such index and therefore we can
* return all enrolment records. MNet clients 1.x will only use the last record for
* the student, if she is enrolled via multiple plugins.
*
* @uses mnet_remote_client Callable via XML-RPC only
* @param int $courseid ID of our course
* @return array
*/
public function course_enrolments($courseid) {
global $DB;
if (!$client = get_mnet_remote_client()) {
die('Callable via XML-RPC only');
}
// todo 'guest' nevracet
return array(
0 => array(
'username' => 'admina',
'shortname' => 'student',
'name' => 'Student',
'enrol' => 'mnet',
'timemodified' => time(),
),
1 => array(
'username' => 'admina',
'shortname' => 'teacher',
'name' => 'Teacher',
'enrol' => 'manual',
'timemodified' => time(),
),
2 => array(
'username' => 'guest',
'shortname' => 'admin',
'name' => 'Admin',
'enrol' => 'crack',
'timemodified' => time(),
),
3 => array(
'username' => 'usera',
'shortname' => 'student',
'name' => 'Student',
'enrol' => 'mnet',
'timemodified' => time(),
),
4 => array(
'username' => 'doesnotexist',
'shortname' => 'student',
'name' => 'Student',
'enrol' => 'mnet',
'timemodified' => time(),
),
);
}
}