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externallib.php
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<?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/>.
/**
* External course API
*
* @package core_course
* @category external
* @copyright 2009 Petr Skodak
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
defined('MOODLE_INTERNAL') || die;
require_once("$CFG->libdir/externallib.php");
/**
* Course external functions
*
* @package core_course
* @category external
* @copyright 2011 Jerome Mouneyrac
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
* @since Moodle 2.2
*/
class core_course_external extends external_api {
/**
* Returns description of method parameters
*
* @return external_function_parameters
* @since Moodle 2.9 Options available
* @since Moodle 2.2
*/
public static function get_course_contents_parameters() {
return new external_function_parameters(
array('courseid' => new external_value(PARAM_INT, 'course id'),
'options' => new external_multiple_structure (
new external_single_structure(
array(
'name' => new external_value(PARAM_ALPHANUM,
'The expected keys (value format) are:
excludemodules (bool) Do not return modules, return only the sections structure
excludecontents (bool) Do not return module contents (i.e: files inside a resource)
sectionid (int) Return only this section
sectionnumber (int) Return only this section with number (order)
cmid (int) Return only this module information (among the whole sections structure)
modname (string) Return only modules with this name "label, forum, etc..."
modid (int) Return only the module with this id (to be used with modname'),
'value' => new external_value(PARAM_RAW, 'the value of the option,
this param is personaly validated in the external function.')
)
), 'Options, used since Moodle 2.9', VALUE_DEFAULT, array())
)
);
}
/**
* Get course contents
*
* @param int $courseid course id
* @param array $options Options for filtering the results, used since Moodle 2.9
* @return array
* @since Moodle 2.9 Options available
* @since Moodle 2.2
*/
public static function get_course_contents($courseid, $options = array()) {
global $CFG, $DB;
require_once($CFG->dirroot . "/course/lib.php");
//validate parameter
$params = self::validate_parameters(self::get_course_contents_parameters(),
array('courseid' => $courseid, 'options' => $options));
$filters = array();
if (!empty($params['options'])) {
foreach ($params['options'] as $option) {
$name = trim($option['name']);
// Avoid duplicated options.
if (!isset($filters[$name])) {
switch ($name) {
case 'excludemodules':
case 'excludecontents':
$value = clean_param($option['value'], PARAM_BOOL);
$filters[$name] = $value;
break;
case 'sectionid':
case 'sectionnumber':
case 'cmid':
case 'modid':
$value = clean_param($option['value'], PARAM_INT);
if (is_numeric($value)) {
$filters[$name] = $value;
} else {
throw new moodle_exception('errorinvalidparam', 'webservice', '', $name);
}
break;
case 'modname':
$value = clean_param($option['value'], PARAM_PLUGIN);
if ($value) {
$filters[$name] = $value;
} else {
throw new moodle_exception('errorinvalidparam', 'webservice', '', $name);
}
break;
default:
throw new moodle_exception('errorinvalidparam', 'webservice', '', $name);
}
}
}
}
//retrieve the course
$course = $DB->get_record('course', array('id' => $params['courseid']), '*', MUST_EXIST);
if ($course->id != SITEID) {
// Check course format exist.
if (!file_exists($CFG->dirroot . '/course/format/' . $course->format . '/lib.php')) {
throw new moodle_exception('cannotgetcoursecontents', 'webservice', '', null,
get_string('courseformatnotfound', 'error', $course->format));
} else {
require_once($CFG->dirroot . '/course/format/' . $course->format . '/lib.php');
}
}
// now security checks
$context = context_course::instance($course->id, IGNORE_MISSING);
try {
self::validate_context($context);
} catch (Exception $e) {
$exceptionparam = new stdClass();
$exceptionparam->message = $e->getMessage();
$exceptionparam->courseid = $course->id;
throw new moodle_exception('errorcoursecontextnotvalid', 'webservice', '', $exceptionparam);
}
$canupdatecourse = has_capability('moodle/course:update', $context);
//create return value
$coursecontents = array();
if ($canupdatecourse or $course->visible
or has_capability('moodle/course:viewhiddencourses', $context)) {
//retrieve sections
$modinfo = get_fast_modinfo($course);
$sections = $modinfo->get_section_info_all();
//for each sections (first displayed to last displayed)
$modinfosections = $modinfo->get_sections();
foreach ($sections as $key => $section) {
if (!$section->uservisible) {
continue;
}
// This becomes true when we are filtering and we found the value to filter with.
$sectionfound = false;
// Filter by section id.
if (!empty($filters['sectionid'])) {
if ($section->id != $filters['sectionid']) {
continue;
} else {
$sectionfound = true;
}
}
// Filter by section number. Note that 0 is a valid section number.
if (isset($filters['sectionnumber'])) {
if ($key != $filters['sectionnumber']) {
continue;
} else {
$sectionfound = true;
}
}
// reset $sectioncontents
$sectionvalues = array();
$sectionvalues['id'] = $section->id;
$sectionvalues['name'] = get_section_name($course, $section);
$sectionvalues['visible'] = $section->visible;
$options = (object) array('noclean' => true);
list($sectionvalues['summary'], $sectionvalues['summaryformat']) =
external_format_text($section->summary, $section->summaryformat,
$context->id, 'course', 'section', $section->id, $options);
$sectionvalues['section'] = $section->section;
$sectioncontents = array();
//for each module of the section
if (empty($filters['excludemodules']) and !empty($modinfosections[$section->section])) {
foreach ($modinfosections[$section->section] as $cmid) {
$cm = $modinfo->cms[$cmid];
// stop here if the module is not visible to the user
if (!$cm->uservisible) {
continue;
}
// This becomes true when we are filtering and we found the value to filter with.
$modfound = false;
// Filter by cmid.
if (!empty($filters['cmid'])) {
if ($cmid != $filters['cmid']) {
continue;
} else {
$modfound = true;
}
}
// Filter by module name and id.
if (!empty($filters['modname'])) {
if ($cm->modname != $filters['modname']) {
continue;
} else if (!empty($filters['modid'])) {
if ($cm->instance != $filters['modid']) {
continue;
} else {
// Note that if we are only filtering by modname we don't break the loop.
$modfound = true;
}
}
}
$module = array();
$modcontext = context_module::instance($cm->id);
//common info (for people being able to see the module or availability dates)
$module['id'] = $cm->id;
$module['name'] = external_format_string($cm->name, $modcontext->id);
$module['instance'] = $cm->instance;
$module['modname'] = $cm->modname;
$module['modplural'] = $cm->modplural;
$module['modicon'] = $cm->get_icon_url()->out(false);
$module['indent'] = $cm->indent;
if (!empty($cm->showdescription) or $cm->modname == 'label') {
// We want to use the external format. However from reading get_formatted_content(), $cm->content format is always FORMAT_HTML.
list($module['description'], $descriptionformat) = external_format_text($cm->content,
FORMAT_HTML, $modcontext->id, $cm->modname, 'intro', $cm->id);
}
//url of the module
$url = $cm->url;
if ($url) { //labels don't have url
$module['url'] = $url->out(false);
}
$canviewhidden = has_capability('moodle/course:viewhiddenactivities',
context_module::instance($cm->id));
//user that can view hidden module should know about the visibility
$module['visible'] = $cm->visible;
// Availability date (also send to user who can see hidden module).
if ($CFG->enableavailability && ($canviewhidden || $canupdatecourse)) {
$module['availability'] = $cm->availability;
}
$baseurl = 'webservice/pluginfile.php';
//call $modulename_export_contents
//(each module callback take care about checking the capabilities)
require_once($CFG->dirroot . '/mod/' . $cm->modname . '/lib.php');
$getcontentfunction = $cm->modname.'_export_contents';
if (function_exists($getcontentfunction)) {
if (empty($filters['excludecontents']) and $contents = $getcontentfunction($cm, $baseurl)) {
$module['contents'] = $contents;
} else {
$module['contents'] = array();
}
}
//assign result to $sectioncontents
$sectioncontents[] = $module;
// If we just did a filtering, break the loop.
if ($modfound) {
break;
}
}
}
$sectionvalues['modules'] = $sectioncontents;
// assign result to $coursecontents
$coursecontents[] = $sectionvalues;
// Break the loop if we are filtering.
if ($sectionfound) {
break;
}
}
}
return $coursecontents;
}
/**
* Returns description of method result value
*
* @return external_description
* @since Moodle 2.2
*/
public static function get_course_contents_returns() {
return new external_multiple_structure(
new external_single_structure(
array(
'id' => new external_value(PARAM_INT, 'Section ID'),
'name' => new external_value(PARAM_TEXT, 'Section name'),
'visible' => new external_value(PARAM_INT, 'is the section visible', VALUE_OPTIONAL),
'summary' => new external_value(PARAM_RAW, 'Section description'),
'summaryformat' => new external_format_value('summary'),
'section' => new external_value(PARAM_INT, 'Section number inside the course', VALUE_OPTIONAL),
'modules' => new external_multiple_structure(
new external_single_structure(
array(
'id' => new external_value(PARAM_INT, 'activity id'),
'url' => new external_value(PARAM_URL, 'activity url', VALUE_OPTIONAL),
'name' => new external_value(PARAM_RAW, 'activity module name'),
'instance' => new external_value(PARAM_INT, 'instance id', VALUE_OPTIONAL),
'description' => new external_value(PARAM_RAW, 'activity description', VALUE_OPTIONAL),
'visible' => new external_value(PARAM_INT, 'is the module visible', VALUE_OPTIONAL),
'modicon' => new external_value(PARAM_URL, 'activity icon url'),
'modname' => new external_value(PARAM_PLUGIN, 'activity module type'),
'modplural' => new external_value(PARAM_TEXT, 'activity module plural name'),
'availability' => new external_value(PARAM_RAW, 'module availability settings', VALUE_OPTIONAL),
'indent' => new external_value(PARAM_INT, 'number of identation in the site'),
'contents' => new external_multiple_structure(
new external_single_structure(
array(
// content info
'type'=> new external_value(PARAM_TEXT, 'a file or a folder or external link'),
'filename'=> new external_value(PARAM_FILE, 'filename'),
'filepath'=> new external_value(PARAM_PATH, 'filepath'),
'filesize'=> new external_value(PARAM_INT, 'filesize'),
'fileurl' => new external_value(PARAM_URL, 'downloadable file url', VALUE_OPTIONAL),
'content' => new external_value(PARAM_RAW, 'Raw content, will be used when type is content', VALUE_OPTIONAL),
'timecreated' => new external_value(PARAM_INT, 'Time created'),
'timemodified' => new external_value(PARAM_INT, 'Time modified'),
'sortorder' => new external_value(PARAM_INT, 'Content sort order'),
// copyright related info
'userid' => new external_value(PARAM_INT, 'User who added this content to moodle'),
'author' => new external_value(PARAM_TEXT, 'Content owner'),
'license' => new external_value(PARAM_TEXT, 'Content license'),
)
), VALUE_DEFAULT, array()
)
)
), 'list of module'
)
)
)
);
}
/**
* Returns description of method parameters
*
* @return external_function_parameters
* @since Moodle 2.3
*/
public static function get_courses_parameters() {
return new external_function_parameters(
array('options' => new external_single_structure(
array('ids' => new external_multiple_structure(
new external_value(PARAM_INT, 'Course id')
, 'List of course id. If empty return all courses
except front page course.',
VALUE_OPTIONAL)
), 'options - operator OR is used', VALUE_DEFAULT, array())
)
);
}
/**
* Get courses
*
* @param array $options It contains an array (list of ids)
* @return array
* @since Moodle 2.2
*/
public static function get_courses($options = array()) {
global $CFG, $DB;
require_once($CFG->dirroot . "/course/lib.php");
//validate parameter
$params = self::validate_parameters(self::get_courses_parameters(),
array('options' => $options));
//retrieve courses
if (!array_key_exists('ids', $params['options'])
or empty($params['options']['ids'])) {
$courses = $DB->get_records('course');
} else {
$courses = $DB->get_records_list('course', 'id', $params['options']['ids']);
}
//create return value
$coursesinfo = array();
foreach ($courses as $course) {
// now security checks
$context = context_course::instance($course->id, IGNORE_MISSING);
$courseformatoptions = course_get_format($course)->get_format_options();
try {
self::validate_context($context);
} catch (Exception $e) {
$exceptionparam = new stdClass();
$exceptionparam->message = $e->getMessage();
$exceptionparam->courseid = $course->id;
throw new moodle_exception('errorcoursecontextnotvalid', 'webservice', '', $exceptionparam);
}
require_capability('moodle/course:view', $context);
$courseinfo = array();
$courseinfo['id'] = $course->id;
$courseinfo['fullname'] = external_format_string($course->fullname, $context->id);
$courseinfo['shortname'] = external_format_string($course->shortname, $context->id);
$courseinfo['displayname'] = external_format_string(get_course_display_name_for_list($course), $context->id);
$courseinfo['categoryid'] = $course->category;
list($courseinfo['summary'], $courseinfo['summaryformat']) =
external_format_text($course->summary, $course->summaryformat, $context->id, 'course', 'summary', 0);
$courseinfo['format'] = $course->format;
$courseinfo['startdate'] = $course->startdate;
if (array_key_exists('numsections', $courseformatoptions)) {
// For backward-compartibility
$courseinfo['numsections'] = $courseformatoptions['numsections'];
}
//some field should be returned only if the user has update permission
$courseadmin = has_capability('moodle/course:update', $context);
if ($courseadmin) {
$courseinfo['categorysortorder'] = $course->sortorder;
$courseinfo['idnumber'] = $course->idnumber;
$courseinfo['showgrades'] = $course->showgrades;
$courseinfo['showreports'] = $course->showreports;
$courseinfo['newsitems'] = $course->newsitems;
$courseinfo['visible'] = $course->visible;
$courseinfo['maxbytes'] = $course->maxbytes;
if (array_key_exists('hiddensections', $courseformatoptions)) {
// For backward-compartibility
$courseinfo['hiddensections'] = $courseformatoptions['hiddensections'];
}
$courseinfo['groupmode'] = $course->groupmode;
$courseinfo['groupmodeforce'] = $course->groupmodeforce;
$courseinfo['defaultgroupingid'] = $course->defaultgroupingid;
$courseinfo['lang'] = $course->lang;
$courseinfo['timecreated'] = $course->timecreated;
$courseinfo['timemodified'] = $course->timemodified;
$courseinfo['forcetheme'] = $course->theme;
$courseinfo['enablecompletion'] = $course->enablecompletion;
$courseinfo['completionnotify'] = $course->completionnotify;
$courseinfo['courseformatoptions'] = array();
foreach ($courseformatoptions as $key => $value) {
$courseinfo['courseformatoptions'][] = array(
'name' => $key,
'value' => $value
);
}
}
if ($courseadmin or $course->visible
or has_capability('moodle/course:viewhiddencourses', $context)) {
$coursesinfo[] = $courseinfo;
}
}
return $coursesinfo;
}
/**
* Returns description of method result value
*
* @return external_description
* @since Moodle 2.2
*/
public static function get_courses_returns() {
return new external_multiple_structure(
new external_single_structure(
array(
'id' => new external_value(PARAM_INT, 'course id'),
'shortname' => new external_value(PARAM_TEXT, 'course short name'),
'categoryid' => new external_value(PARAM_INT, 'category id'),
'categorysortorder' => new external_value(PARAM_INT,
'sort order into the category', VALUE_OPTIONAL),
'fullname' => new external_value(PARAM_TEXT, 'full name'),
'displayname' => new external_value(PARAM_TEXT, 'course display name'),
'idnumber' => new external_value(PARAM_RAW, 'id number', VALUE_OPTIONAL),
'summary' => new external_value(PARAM_RAW, 'summary'),
'summaryformat' => new external_format_value('summary'),
'format' => new external_value(PARAM_PLUGIN,
'course format: weeks, topics, social, site,..'),
'showgrades' => new external_value(PARAM_INT,
'1 if grades are shown, otherwise 0', VALUE_OPTIONAL),
'newsitems' => new external_value(PARAM_INT,
'number of recent items appearing on the course page', VALUE_OPTIONAL),
'startdate' => new external_value(PARAM_INT,
'timestamp when the course start'),
'numsections' => new external_value(PARAM_INT,
'(deprecated, use courseformatoptions) number of weeks/topics',
VALUE_OPTIONAL),
'maxbytes' => new external_value(PARAM_INT,
'largest size of file that can be uploaded into the course',
VALUE_OPTIONAL),
'showreports' => new external_value(PARAM_INT,
'are activity report shown (yes = 1, no =0)', VALUE_OPTIONAL),
'visible' => new external_value(PARAM_INT,
'1: available to student, 0:not available', VALUE_OPTIONAL),
'hiddensections' => new external_value(PARAM_INT,
'(deprecated, use courseformatoptions) How the hidden sections in the course are displayed to students',
VALUE_OPTIONAL),
'groupmode' => new external_value(PARAM_INT, 'no group, separate, visible',
VALUE_OPTIONAL),
'groupmodeforce' => new external_value(PARAM_INT, '1: yes, 0: no',
VALUE_OPTIONAL),
'defaultgroupingid' => new external_value(PARAM_INT, 'default grouping id',
VALUE_OPTIONAL),
'timecreated' => new external_value(PARAM_INT,
'timestamp when the course have been created', VALUE_OPTIONAL),
'timemodified' => new external_value(PARAM_INT,
'timestamp when the course have been modified', VALUE_OPTIONAL),
'enablecompletion' => new external_value(PARAM_INT,
'Enabled, control via completion and activity settings. Disbaled,
not shown in activity settings.',
VALUE_OPTIONAL),
'completionnotify' => new external_value(PARAM_INT,
'1: yes 0: no', VALUE_OPTIONAL),
'lang' => new external_value(PARAM_SAFEDIR,
'forced course language', VALUE_OPTIONAL),
'forcetheme' => new external_value(PARAM_PLUGIN,
'name of the force theme', VALUE_OPTIONAL),
'courseformatoptions' => new external_multiple_structure(
new external_single_structure(
array('name' => new external_value(PARAM_ALPHANUMEXT, 'course format option name'),
'value' => new external_value(PARAM_RAW, 'course format option value')
)),
'additional options for particular course format', VALUE_OPTIONAL
),
), 'course'
)
);
}
/**
* Returns description of method parameters
*
* @return external_function_parameters
* @since Moodle 2.2
*/
public static function create_courses_parameters() {
$courseconfig = get_config('moodlecourse'); //needed for many default values
return new external_function_parameters(
array(
'courses' => new external_multiple_structure(
new external_single_structure(
array(
'fullname' => new external_value(PARAM_TEXT, 'full name'),
'shortname' => new external_value(PARAM_TEXT, 'course short name'),
'categoryid' => new external_value(PARAM_INT, 'category id'),
'idnumber' => new external_value(PARAM_RAW, 'id number', VALUE_OPTIONAL),
'summary' => new external_value(PARAM_RAW, 'summary', VALUE_OPTIONAL),
'summaryformat' => new external_format_value('summary', VALUE_DEFAULT),
'format' => new external_value(PARAM_PLUGIN,
'course format: weeks, topics, social, site,..',
VALUE_DEFAULT, $courseconfig->format),
'showgrades' => new external_value(PARAM_INT,
'1 if grades are shown, otherwise 0', VALUE_DEFAULT,
$courseconfig->showgrades),
'newsitems' => new external_value(PARAM_INT,
'number of recent items appearing on the course page',
VALUE_DEFAULT, $courseconfig->newsitems),
'startdate' => new external_value(PARAM_INT,
'timestamp when the course start', VALUE_OPTIONAL),
'numsections' => new external_value(PARAM_INT,
'(deprecated, use courseformatoptions) number of weeks/topics',
VALUE_OPTIONAL),
'maxbytes' => new external_value(PARAM_INT,
'largest size of file that can be uploaded into the course',
VALUE_DEFAULT, $courseconfig->maxbytes),
'showreports' => new external_value(PARAM_INT,
'are activity report shown (yes = 1, no =0)', VALUE_DEFAULT,
$courseconfig->showreports),
'visible' => new external_value(PARAM_INT,
'1: available to student, 0:not available', VALUE_OPTIONAL),
'hiddensections' => new external_value(PARAM_INT,
'(deprecated, use courseformatoptions) How the hidden sections in the course are displayed to students',
VALUE_OPTIONAL),
'groupmode' => new external_value(PARAM_INT, 'no group, separate, visible',
VALUE_DEFAULT, $courseconfig->groupmode),
'groupmodeforce' => new external_value(PARAM_INT, '1: yes, 0: no',
VALUE_DEFAULT, $courseconfig->groupmodeforce),
'defaultgroupingid' => new external_value(PARAM_INT, 'default grouping id',
VALUE_DEFAULT, 0),
'enablecompletion' => new external_value(PARAM_INT,
'Enabled, control via completion and activity settings. Disabled,
not shown in activity settings.',
VALUE_OPTIONAL),
'completionnotify' => new external_value(PARAM_INT,
'1: yes 0: no', VALUE_OPTIONAL),
'lang' => new external_value(PARAM_SAFEDIR,
'forced course language', VALUE_OPTIONAL),
'forcetheme' => new external_value(PARAM_PLUGIN,
'name of the force theme', VALUE_OPTIONAL),
'courseformatoptions' => new external_multiple_structure(
new external_single_structure(
array('name' => new external_value(PARAM_ALPHANUMEXT, 'course format option name'),
'value' => new external_value(PARAM_RAW, 'course format option value')
)),
'additional options for particular course format', VALUE_OPTIONAL),
)
), 'courses to create'
)
)
);
}
/**
* Create courses
*
* @param array $courses
* @return array courses (id and shortname only)
* @since Moodle 2.2
*/
public static function create_courses($courses) {
global $CFG, $DB;
require_once($CFG->dirroot . "/course/lib.php");
require_once($CFG->libdir . '/completionlib.php');
$params = self::validate_parameters(self::create_courses_parameters(),
array('courses' => $courses));
$availablethemes = core_component::get_plugin_list('theme');
$availablelangs = get_string_manager()->get_list_of_translations();
$transaction = $DB->start_delegated_transaction();
foreach ($params['courses'] as $course) {
// Ensure the current user is allowed to run this function
$context = context_coursecat::instance($course['categoryid'], IGNORE_MISSING);
try {
self::validate_context($context);
} catch (Exception $e) {
$exceptionparam = new stdClass();
$exceptionparam->message = $e->getMessage();
$exceptionparam->catid = $course['categoryid'];
throw new moodle_exception('errorcatcontextnotvalid', 'webservice', '', $exceptionparam);
}
require_capability('moodle/course:create', $context);
// Make sure lang is valid
if (array_key_exists('lang', $course) and empty($availablelangs[$course['lang']])) {
throw new moodle_exception('errorinvalidparam', 'webservice', '', 'lang');
}
// Make sure theme is valid
if (array_key_exists('forcetheme', $course)) {
if (!empty($CFG->allowcoursethemes)) {
if (empty($availablethemes[$course['forcetheme']])) {
throw new moodle_exception('errorinvalidparam', 'webservice', '', 'forcetheme');
} else {
$course['theme'] = $course['forcetheme'];
}
}
}
//force visibility if ws user doesn't have the permission to set it
$category = $DB->get_record('course_categories', array('id' => $course['categoryid']));
if (!has_capability('moodle/course:visibility', $context)) {
$course['visible'] = $category->visible;
}
//set default value for completion
$courseconfig = get_config('moodlecourse');
if (completion_info::is_enabled_for_site()) {
if (!array_key_exists('enablecompletion', $course)) {
$course['enablecompletion'] = $courseconfig->enablecompletion;
}
} else {
$course['enablecompletion'] = 0;
}
$course['category'] = $course['categoryid'];
// Summary format.
$course['summaryformat'] = external_validate_format($course['summaryformat']);
if (!empty($course['courseformatoptions'])) {
foreach ($course['courseformatoptions'] as $option) {
$course[$option['name']] = $option['value'];
}
}
//Note: create_course() core function check shortname, idnumber, category
$course['id'] = create_course((object) $course)->id;
$resultcourses[] = array('id' => $course['id'], 'shortname' => $course['shortname']);
}
$transaction->allow_commit();
return $resultcourses;
}
/**
* Returns description of method result value
*
* @return external_description
* @since Moodle 2.2
*/
public static function create_courses_returns() {
return new external_multiple_structure(
new external_single_structure(
array(
'id' => new external_value(PARAM_INT, 'course id'),
'shortname' => new external_value(PARAM_TEXT, 'short name'),
)
)
);
}
/**
* Update courses
*
* @return external_function_parameters
* @since Moodle 2.5
*/
public static function update_courses_parameters() {
return new external_function_parameters(
array(
'courses' => new external_multiple_structure(
new external_single_structure(
array(
'id' => new external_value(PARAM_INT, 'ID of the course'),
'fullname' => new external_value(PARAM_TEXT, 'full name', VALUE_OPTIONAL),
'shortname' => new external_value(PARAM_TEXT, 'course short name', VALUE_OPTIONAL),
'categoryid' => new external_value(PARAM_INT, 'category id', VALUE_OPTIONAL),
'idnumber' => new external_value(PARAM_RAW, 'id number', VALUE_OPTIONAL),
'summary' => new external_value(PARAM_RAW, 'summary', VALUE_OPTIONAL),
'summaryformat' => new external_format_value('summary', VALUE_OPTIONAL),
'format' => new external_value(PARAM_PLUGIN,
'course format: weeks, topics, social, site,..', VALUE_OPTIONAL),
'showgrades' => new external_value(PARAM_INT,
'1 if grades are shown, otherwise 0', VALUE_OPTIONAL),
'newsitems' => new external_value(PARAM_INT,
'number of recent items appearing on the course page', VALUE_OPTIONAL),
'startdate' => new external_value(PARAM_INT,
'timestamp when the course start', VALUE_OPTIONAL),
'numsections' => new external_value(PARAM_INT,
'(deprecated, use courseformatoptions) number of weeks/topics', VALUE_OPTIONAL),
'maxbytes' => new external_value(PARAM_INT,
'largest size of file that can be uploaded into the course', VALUE_OPTIONAL),
'showreports' => new external_value(PARAM_INT,
'are activity report shown (yes = 1, no =0)', VALUE_OPTIONAL),
'visible' => new external_value(PARAM_INT,
'1: available to student, 0:not available', VALUE_OPTIONAL),
'hiddensections' => new external_value(PARAM_INT,
'(deprecated, use courseformatoptions) How the hidden sections in the course are
displayed to students', VALUE_OPTIONAL),
'groupmode' => new external_value(PARAM_INT, 'no group, separate, visible', VALUE_OPTIONAL),
'groupmodeforce' => new external_value(PARAM_INT, '1: yes, 0: no', VALUE_OPTIONAL),
'defaultgroupingid' => new external_value(PARAM_INT, 'default grouping id', VALUE_OPTIONAL),
'enablecompletion' => new external_value(PARAM_INT,
'Enabled, control via completion and activity settings. Disabled,
not shown in activity settings.', VALUE_OPTIONAL),
'completionnotify' => new external_value(PARAM_INT, '1: yes 0: no', VALUE_OPTIONAL),
'lang' => new external_value(PARAM_SAFEDIR, 'forced course language', VALUE_OPTIONAL),
'forcetheme' => new external_value(PARAM_PLUGIN, 'name of the force theme', VALUE_OPTIONAL),
'courseformatoptions' => new external_multiple_structure(
new external_single_structure(
array('name' => new external_value(PARAM_ALPHANUMEXT, 'course format option name'),
'value' => new external_value(PARAM_RAW, 'course format option value')
)),
'additional options for particular course format', VALUE_OPTIONAL),
)
), 'courses to update'
)
)
);
}
/**
* Update courses
*
* @param array $courses
* @since Moodle 2.5
*/
public static function update_courses($courses) {
global $CFG, $DB;
require_once($CFG->dirroot . "/course/lib.php");
$warnings = array();
$params = self::validate_parameters(self::update_courses_parameters(),
array('courses' => $courses));
$availablethemes = core_component::get_plugin_list('theme');
$availablelangs = get_string_manager()->get_list_of_translations();
foreach ($params['courses'] as $course) {
// Catch any exception while updating course and return as warning to user.
try {
// Ensure the current user is allowed to run this function.
$context = context_course::instance($course['id'], MUST_EXIST);
self::validate_context($context);
$oldcourse = course_get_format($course['id'])->get_course();
require_capability('moodle/course:update', $context);
// Check if user can change category.
if (array_key_exists('categoryid', $course) && ($oldcourse->category != $course['categoryid'])) {
require_capability('moodle/course:changecategory', $context);
$course['category'] = $course['categoryid'];
}
// Check if the user can change fullname.
if (array_key_exists('fullname', $course) && ($oldcourse->fullname != $course['fullname'])) {
require_capability('moodle/course:changefullname', $context);
}
// Check if the user can change shortname.
if (array_key_exists('shortname', $course) && ($oldcourse->shortname != $course['shortname'])) {
require_capability('moodle/course:changeshortname', $context);
}
// Check if the user can change the idnumber.
if (array_key_exists('idnumber', $course) && ($oldcourse->idnumber != $course['idnumber'])) {
require_capability('moodle/course:changeidnumber', $context);
}
// Check if user can change summary.
if (array_key_exists('summary', $course) && ($oldcourse->summary != $course['summary'])) {
require_capability('moodle/course:changesummary', $context);
}
// Summary format.
if (array_key_exists('summaryformat', $course) && ($oldcourse->summaryformat != $course['summaryformat'])) {
require_capability('moodle/course:changesummary', $context);
$course['summaryformat'] = external_validate_format($course['summaryformat']);
}
// Check if user can change visibility.
if (array_key_exists('visible', $course) && ($oldcourse->visible != $course['visible'])) {
require_capability('moodle/course:visibility', $context);
}
// Make sure lang is valid.
if (array_key_exists('lang', $course) && empty($availablelangs[$course['lang']])) {
throw new moodle_exception('errorinvalidparam', 'webservice', '', 'lang');
}
// Make sure theme is valid.
if (array_key_exists('forcetheme', $course)) {
if (!empty($CFG->allowcoursethemes)) {
if (empty($availablethemes[$course['forcetheme']])) {
throw new moodle_exception('errorinvalidparam', 'webservice', '', 'forcetheme');
} else {
$course['theme'] = $course['forcetheme'];
}
}
}
// Make sure completion is enabled before setting it.
if (array_key_exists('enabledcompletion', $course) && !completion_info::is_enabled_for_site()) {
$course['enabledcompletion'] = 0;
}
// Make sure maxbytes are less then CFG->maxbytes.
if (array_key_exists('maxbytes', $course)) {
$course['maxbytes'] = get_max_upload_file_size($CFG->maxbytes, $course['maxbytes']);
}
if (!empty($course['courseformatoptions'])) {
foreach ($course['courseformatoptions'] as $option) {
if (isset($option['name']) && isset($option['value'])) {
$course[$option['name']] = $option['value'];
}
}
}
// Update course if user has all required capabilities.
update_course((object) $course);
} catch (Exception $e) {
$warning = array();
$warning['item'] = 'course';
$warning['itemid'] = $course['id'];
if ($e instanceof moodle_exception) {
$warning['warningcode'] = $e->errorcode;
} else {
$warning['warningcode'] = $e->getCode();
}
$warning['message'] = $e->getMessage();
$warnings[] = $warning;
}
}
$result = array();
$result['warnings'] = $warnings;
return $result;
}
/**
* Returns description of method result value
*
* @return external_description
* @since Moodle 2.5
*/
public static function update_courses_returns() {
return new external_single_structure(
array(
'warnings' => new external_warnings()
)
);
}
/**
* Returns description of method parameters
*
* @return external_function_parameters
* @since Moodle 2.2
*/
public static function delete_courses_parameters() {
return new external_function_parameters(
array(
'courseids' => new external_multiple_structure(new external_value(PARAM_INT, 'course ID')),
)
);
}
/**
* Delete courses
*
* @param array $courseids A list of course ids
* @since Moodle 2.2
*/
public static function delete_courses($courseids) {
global $CFG, $DB;
require_once($CFG->dirroot."/course/lib.php");
// Parameter validation.
$params = self::validate_parameters(self::delete_courses_parameters(), array('courseids'=>$courseids));
$warnings = array();
foreach ($params['courseids'] as $courseid) {
$course = $DB->get_record('course', array('id' => $courseid));
if ($course === false) {
$warnings[] = array(
'item' => 'course',
'itemid' => $courseid,
'warningcode' => 'unknowncourseidnumber',
'message' => 'Unknown course ID ' . $courseid
);
continue;
}
// Check if the context is valid.
$coursecontext = context_course::instance($course->id);
self::validate_context($coursecontext);
// Check if the current user has permission.
if (!can_delete_course($courseid)) {
$warnings[] = array(
'item' => 'course',
'itemid' => $courseid,
'warningcode' => 'cannotdeletecourse',
'message' => 'You do not have the permission to delete this course' . $courseid
);
continue;
}
if (delete_course($course, false) === false) {
$warnings[] = array(
'item' => 'course',
'itemid' => $courseid,
'warningcode' => 'cannotdeletecategorycourse',
'message' => 'Course ' . $courseid . ' failed to be deleted'
);
continue;
}