moodle/enrol/manual/lib.php

305 lines
11 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
* @subpackage 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 !== $name) {
throw new coding_exception('invalid enrol instance!');
}
if (!enrol_is_enabled($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 enrolment instance manage link.
*
* By defaults looks for manage.php file and tests for manage capability.
*
* @param object $instance
* @return moodle_url;
*/
public function add_course_navigation($instancesnode, stdClass $instance) {
if ($instance->enrol !== 'manual') {
throw new coding_exception('Invalid enrol instance type!');
}
$context = get_context_instance(CONTEXT_COURSE, $instance->courseid);
if (has_capability('enrol/manual:config', $context)) {
$managelink = new moodle_url('/enrol/manual/edit.php', array('courseid'=>$instance->courseid));
$instancesnode->add($this->get_instance_name($instance), $managelink, navigation_node::TYPE_SETTING);
}
}
/**
* Returns edit icons for the page with list of instances
* @param stdClass $instance
* @return array
*/
public function get_action_icons(stdClass $instance) {
global $OUTPUT;
if ($instance->enrol !== 'manual') {
throw new coding_exception('invalid enrol instance!');
}
$context = get_context_instance(CONTEXT_COURSE, $instance->courseid);
$icons = array();
if (has_capability('enrol/manual:manage', $context)) {
$managelink = new moodle_url("/enrol/manual/manage.php", array('enrolid'=>$instance->id));
$icons[] = $OUTPUT->action_icon($managelink, new pix_icon('i/users', get_string('enrolusers', 'enrol_manual'), 'core', array('class'=>'iconsmall')));
}
if (has_capability('enrol/manual:config', $context)) {
$editlink = new moodle_url("/enrol/manual/edit.php", array('courseid'=>$instance->courseid));
$icons[] = $OUTPUT->action_icon($editlink, new pix_icon('i/edit', get_string('edit'), 'core', array('class'=>'icon')));
}
return $icons;
}
/**
* Returns link to page which may be used to add new instance of enrolment plugin in course.
* @param int $courseid
* @return moodle_url page url
*/
public function get_newinstance_link($courseid) {
global $DB;
$context = get_context_instance(CONTEXT_COURSE, $courseid, MUST_EXIST);
if (!has_capability('moodle/course:enrolconfig', $context) or !has_capability('enrol/manual:config', $context)) {
return NULL;
}
if ($DB->record_exists('enrol', array('courseid'=>$courseid, 'enrol'=>'manual'))) {
return NULL;
}
return new moodle_url('/enrol/manual/edit.php', array('courseid'=>$courseid));
}
/**
* Add new instance of enrol plugin with default settings.
* @param object $course
* @return int id of new instance, null if can not be created
*/
public function add_default_instance($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);
}
/**
* Add new instance of enrol plugin.
* @param object $course
* @param array instance fields
* @return int id of new instance, null if can not be created
*/
public function add_instance($course, array $fields = NULL) {
global $DB;
if ($DB->record_exists('enrol', array('courseid'=>$course->id, 'enrol'=>'manual'))) {
// only one instance allowed, sorry
return NULL;
}
return parent::add_instance($course, $fields);
}
/**
* Returns a button to manually enrol users through the manual enrolment plugin.
*
* By default the first manual enrolment plugin instance available in the course is used.
* If no manual enrolment instances exist within the course then false is returned.
*
* This function also adds a quickenrolment JS ui to the page so that users can be enrolled
* via AJAX.
*
* @param course_enrolment_manager $manager
* @return enrol_user_button
*/
public function get_manual_enrol_button(course_enrolment_manager $manager) {
global $CFG;
$instance = null;
$instances = array();
foreach ($manager->get_enrolment_instances() as $tempinstance) {
if ($tempinstance->enrol == 'manual') {
if ($instance === null) {
$instance = $tempinstance;
}
$instances[] = array('id' => $tempinstance->id, 'name' => $this->get_instance_name($tempinstance));
}
}
if (empty($instance)) {
return false;
}
if (!$manuallink = $this->get_manual_enrol_link($instance)) {
return false;
}
$button = new enrol_user_button($manuallink, get_string('enrolusers', 'enrol_manual'), 'get');
$button->class .= ' enrol_manual_plugin';
$startdate = $manager->get_course()->startdate;
$startdateoptions = array();
$timeformat = get_string('strftimedatefullshort');
if ($startdate > 0) {
$today = time();
$today = make_timestamp(date('Y', $today), date('m', $today), date('d', $today), 0, 0, 0);
$startdateoptions[2] = get_string('coursestart') . ' (' . userdate($startdate, $timeformat) . ')';
}
$startdateoptions[3] = get_string('today') . ' (' . userdate($today, $timeformat) . ')' ;
$modules = array('moodle-enrol_manual-quickenrolment', 'moodle-enrol_manual-quickenrolment-skin');
$arguments = array(
'instances' => $instances,
'courseid' => $instance->courseid,
'ajaxurl' => '/enrol/manual/ajax.php',
'url' => $manager->get_moodlepage()->url->out(false),
'optionsStartDate' => $startdateoptions,
'defaultRole' => $instance->roleid,
'disableGradeHistory' => $CFG->disablegradehistory
);
$function = 'M.enrol_manual.quickenrolment.init';
$button->require_yui_module($modules, $function, array($arguments));
$button->strings_for_js(array(
'ajaxoneuserfound',
'ajaxxusersfound',
'ajaxnext25',
'enrol',
'enrolmentoptions',
'enrolusers',
'errajaxfailedenrol',
'errajaxsearch',
'none',
'usersearch',
'unlimitedduration',
'startdatetoday',
'durationdays',
'enrolperiod',
'finishenrollingusers',
'recovergrades'), 'enrol');
$button->strings_for_js('assignroles', 'role');
$button->strings_for_js('startingfrom', 'moodle');
return $button;
}
/**
* Gets an array of the user enrolment actions
*
* @param course_enrolment_manager $manager
* @param stdClass $ue A user enrolment object
* @return array An array of user_enrolment_actions
*/
public function get_user_enrolment_actions(course_enrolment_manager $manager, $ue) {
$actions = array();
$context = $manager->get_context();
$instance = $ue->enrolmentinstance;
$params = $manager->get_moodlepage()->url->params();
$params['ue'] = $ue->id;
if ($this->allow_unenrol($instance) && has_capability("enrol/manual:unenrol", $context)) {
$url = new moodle_url('/enrol/manual/unenroluser.php', $params);
$actions[] = new user_enrolment_action(new pix_icon('t/delete', ''), get_string('unenrol', 'enrol'), $url, array('class'=>'unenrollink', 'rel'=>$ue->id));
}
if ($this->allow_manage($instance) && has_capability("enrol/manual:manage", $context)) {
$url = new moodle_url('/enrol/manual/editenrolment.php', $params);
$actions[] = new user_enrolment_action(new pix_icon('t/edit', ''), get_string('edit'), $url, array('class'=>'editenrollink', 'rel'=>$ue->id));
}
return $actions;
}
/**
* The manual plugin has several bulk operations that can be performed
* @return array
*/
public function get_bulk_operations(course_enrolment_manager $manager) {
global $CFG;
require_once($CFG->dirroot.'/enrol/manual/locallib.php');
$bulkoperations = array(
'editselectedusers' => new enrol_manual_editselectedusers_operation($manager, $this),
'deleteselectedusers' => new enrol_manual_deleteselectedusers_operation($manager, $this)
);
return $bulkoperations;
}
}
/**
* Indicates API features that the enrol plugin supports.
*
* @param string $feature
* @return mixed True if yes (some features may use other values)
*/
function enrol_manual_supports($feature) {
switch($feature) {
case ENROL_RESTORE_TYPE: return ENROL_RESTORE_EXACT;
default: return null;
}
}