moodle/enrol/manual/lib.php

229 lines
8.6 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/>.
/**
* Manual enrolment plugin main library file.
*
* @package enrol_manual
* @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;
class enrol_manual_plugin extends enrol_plugin {
public function roles_protected() {
// users may tweak the roles later
return false;
}
public function allow_enrol(stdClass $instance) {
// users with enrol cap may unenrol other users manually manually
return true;
}
public function allow_unenrol(stdClass $instance) {
// users with unenrol cap may unenrol other users manually manually
return true;
}
public function allow_manage(stdClass $instance) {
// users with manage cap may tweak period and status
return true;
}
/**
* Returns link to manual enrol UI if exists.
* Does the access control tests automatically.
*
* @param object $instance
* @return moodle_url
*/
public function get_manual_enrol_link($instance) {
$name = $this->get_name();
if ($instance->enrol !== $name) {
throw new coding_exception('invalid enrol instance!');
}
if ($instance->courseid == SITEID) {
return NULL;
}
if (!enrol_is_enabled($name)) {
return NULL;
}
$context = get_context_instance(CONTEXT_COURSE, $instance->courseid, MUST_EXIST);
if (!has_capability('enrol/manual:manage', $context) or !has_capability('enrol/manual:enrol', $context) or !has_capability('enrol/manual:unenrol', $context)) {
return NULL;
}
return new moodle_url('/enrol/manual/manage.php', array('enrolid'=>$instance->id, 'id'=>$instance->courseid));
}
/**
* Returns link to page which may be used to add new instance of enrolment plugin in course.
* @param int $courseid
* @return moodle_url page url
*/
public function get_candidate_link($courseid) {
global $DB;
if (!has_capability('moodle/course:enrolconfig', get_context_instance(CONTEXT_COURSE, $courseid, MUST_EXIST))) {
return NULL;
}
if ($DB->record_exists('enrol', array('courseid'=>$courseid, 'enrol'=>'manual'))) {
return NULL;
}
return new moodle_url('/enrol/manual/addinstance.php', array('sesskey'=>sesskey(), 'id'=>$courseid));
}
/**
* Adds enrol instance UI to course edit form
*
* @param object $instance enrol instance or null if does not exist yet
* @param MoodleQuickForm $mform
* @param object $data
* @param object $context context of existing course or parent category if course does not exist
* @return void
*/
public function course_edit_form($instance, MoodleQuickForm $mform, $data, $context) {
$i = isset($instance->id) ? $instance->id : 0;
$plugin = enrol_get_plugin('manual');
$header = $plugin->get_instance_name($instance);
$config = has_capability('enrol/manual:config', $context);
$mform->addElement('header', 'enrol_manual_header_'.$i, $header);
$options = array(ENROL_INSTANCE_ENABLED => get_string('yes'),
ENROL_INSTANCE_DISABLED => get_string('no'));
$mform->addElement('select', 'enrol_manual_status_'.$i, get_string('status', 'enrol_manual'), $options);
$mform->addHelpButton('enrol_manual_status_'.$i, 'status', 'enrol_manual');
$mform->setDefault('enrol_manual_status_'.$i, $this->get_config('status'));
$mform->setAdvanced('enrol_manual_status_'.$i, $this->get_config('status_adv'));
if (!$config) {
$mform->hardFreeze('enrol_manual_status_'.$i);
}
$mform->addElement('duration', 'enrol_manual_enrolperiod_'.$i, get_string('defaultperiod', 'enrol_manual'), array('optional' => true, 'defaultunit' => 86400));
$mform->setDefault('enrol_manual_enrolperiod_'.$i, $this->get_config('enrolperiod'));
$mform->setAdvanced('enrol_manual_enrolperiod_'.$i, $this->get_config('enrolperiod_adv'));
if (!$config) {
$mform->hardFreeze('enrol_manual_enrolperiod_'.$i);
} else {
$mform->disabledIf('enrol_manual_enrolperiod_'.$i, 'enrol_manual_status_'.$i, 'noteq', ENROL_INSTANCE_ENABLED);
}
if ($instance) {
$roles = get_default_enrol_roles($context, $instance->roleid);
} else {
$roles = get_default_enrol_roles($context, $this->get_config('roleid'));
}
$mform->addElement('select', 'enrol_manual_roleid_'.$i, get_string('defaultrole', 'role'), $roles);
$mform->setDefault('enrol_manual_roleid_'.$i, $this->get_config('roleid'));
$mform->setAdvanced('enrol_manual_roleid_'.$i, $this->get_config('roleid_adv'));
if (!$config) {
$mform->hardFreeze('enrol_manual_roleid_'.$i);
} else {
$mform->disabledIf('enrol_manual_roleid_'.$i, 'enrol_manual_status_'.$i, 'noteq', ENROL_INSTANCE_ENABLED);
}
// now add all values from enrol table
if ($instance) {
foreach($instance as $key=>$val) {
$data->{'enrol_manual_'.$key.'_'.$i} = $val;
}
}
}
/**
* Called after updating/inserting course.
*
* @param bool $inserted true if course just inserted
* @param object $course
* @param object $data form data
* @return void
*/
public function course_updated($inserted, $course, $data) {
global $DB;
$context = get_context_instance(CONTEXT_COURSE, $course->id);
if (has_capability('enrol/manual:config', $context)) {
if ($inserted) {
if (isset($data->enrol_manual_status_0)) {
$fields = array('status'=>$data->enrol_manual_status_0);
if ($fields['status'] == ENROL_INSTANCE_ENABLED) {
$fields['enrolperiod'] = $data->enrol_manual_enrolperiod_0;
$fields['roleid'] = $data->enrol_manual_roleid_0;
} else {
$fields['enrolperiod'] = $this->get_config('enrolperiod');
$fields['roleid'] = $this->get_config('roleid');
}
$this->add_instance($course, $fields);
}
} else {
$instances = $DB->get_records('enrol', array('courseid'=>$course->id, 'enrol'=>'manual'));
foreach ($instances as $instance) {
$i = $instance->id;
if (isset($data->{'enrol_manual_status_'.$i})) {
$instance->status = $data->{'enrol_manual_status_'.$i};
$instance->timemodified = time();
if ($instance->status == ENROL_INSTANCE_ENABLED) {
$instance->enrolperiod = $data->{'enrol_manual_enrolperiod_'.$i};
$instance->roleid = $data->{'enrol_manual_roleid_'.$i};
}
$DB->update_record('enrol', $instance);
}
}
}
} else {
if ($inserted) {
if ($this->get_config('defaultenrol')) {
$this->add_default_instance($course);
}
} else {
// bad luck, user can not change anything
}
}
}
/**
* Add new instance of enrol plugin with default settings.
* @param object $course
* @return int id of new instance
*/
public function add_default_instance($course) {
$fields = array('status'=>$this->get_config('status'), 'enrolperiod'=>$this->get_config('enrolperiod', 0), 'roleid'=>$this->get_config('roleid', 0));
return $this->add_instance($course, $fields);
}
public function cron() {
// TODO: deal with $CFG->longtimenosee
}
}