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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 2.2
*/
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, 'option name'),
'value' => new external_value(PARAM_RAW, 'the value of the option, this param is personaly validated in the external function.')
)
), 'Options, not used yet, might be used in later version', VALUE_DEFAULT, array())
)
);
}
/**
* Get course contents
*
* @param int $courseid course id
* @param array $options These options are not used yet, might be used in later version
* @return array
* @since Moodle 2.2
*/
public static function get_course_contents($courseid, $options) {
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));
//retrieve the course
$course = $DB->get_record('course', array('id' => $params['courseid']), '*', MUST_EXIST);
//check course format exist
if (!file_exists($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 = get_context_instance(CONTEXT_COURSE, $course->id);
try {
self::validate_context($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);
$sections = get_all_sections($course->id);
//for each sections (first displayed to last displayed)
foreach ($sections as $key => $section) {
$showsection = (has_capability('moodle/course:viewhiddensections', $context) or $section->visible or !$course->hiddensections);
if (!$showsection) {
continue;
}
// reset $sectioncontents
$sectionvalues = array();
$sectionvalues['id'] = $section->id;
$sectionvalues['name'] = get_section_name($course, $section);
$summary = file_rewrite_pluginfile_urls($section->summary, 'webservice/pluginfile.php', $context->id, 'course', 'section', $section->id);
$sectionvalues['visible'] = $section->visible;
$sectionvalues['summary'] = format_text($summary, $section->summaryformat);
$sectioncontents = array();
//for each module of the section
foreach ($modinfo->sections[$section->section] as $cmid) { //matching /course/lib.php:print_section() logic
$cm = $modinfo->cms[$cmid];
// stop here if the module is not visible to the user
if (!$cm->uservisible) {
continue;
}
$module = array();
//common info (for people being able to see the module or availability dates)
$module['id'] = $cm->id;
$module['name'] = format_string($cm->name, true);
$module['modname'] = $cm->modname;
$module['modplural'] = $cm->modplural;
$module['modicon'] = $cm->get_icon_url()->out(false);
$module['indent'] = $cm->indent;
$modcontext = get_context_instance(CONTEXT_MODULE, $cm->id);
if (!empty($cm->showdescription)) {
$module['description'] = $cm->get_content();
}
//url of the module
$url = $cm->get_url();
if ($url) { //labels don't have url
$module['url'] = $cm->get_url()->out();
}
$canviewhidden = has_capability('moodle/course:viewhiddenactivities',
get_context_instance(CONTEXT_MODULE, $cm->id));
//user that can view hidden module should know about the visibility
$module['visible'] = $cm->visible;
//availability date (also send to user who can see hidden module when the showavailabilyt is ON)
if ($canupdatecourse or ($CFG->enableavailability && $canviewhidden && $cm->showavailability)) {
$module['availablefrom'] = $cm->availablefrom;
$module['availableuntil'] = $cm->availableuntil;
}
$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 ($contents = $getcontentfunction($cm, $baseurl)) {
$module['contents'] = $contents;
}
}
//assign result to $sectioncontents
$sectioncontents[] = $module;
}
$sectionvalues['modules'] = $sectioncontents;
// assign result to $coursecontents
$coursecontents[] = $sectionvalues;
}
}
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'),
'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_TEXT, 'activity module name'),
'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'),
'availablefrom' => new external_value(PARAM_INT, 'module availability start date', VALUE_OPTIONAL),
'availableuntil' => new external_value(PARAM_INT, 'module availability en date', 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 2.2
*/
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) {
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 (!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 = get_context_instance(CONTEXT_COURSE, $course->id);
try {
self::validate_context($context);
} catch (Exception $e) {
$exceptionparam = new stdClass();
$exceptionparam->message = $e->getMessage();
$exceptionparam->courseid = $course->id;
throw new moodle_exception(
get_string('errorcoursecontextnotvalid', 'webservice', $exceptionparam));
}
require_capability('moodle/course:view', $context);
$courseinfo = array();
$courseinfo['id'] = $course->id;
$courseinfo['fullname'] = $course->fullname;
$courseinfo['shortname'] = $course->shortname;
$courseinfo['categoryid'] = $course->category;
$courseinfo['summary'] = $course->summary;
$courseinfo['summaryformat'] = $course->summaryformat;
$courseinfo['format'] = $course->format;
$courseinfo['startdate'] = $course->startdate;
$courseinfo['numsections'] = $course->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;
$courseinfo['hiddensections'] = $course->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['completionstartonenrol'] = $course->completionstartonenrol;
$courseinfo['completionnotify'] = $course->completionnotify;
}
if ($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'),
'idnumber' => new external_value(PARAM_RAW, 'id number', VALUE_OPTIONAL),
'summary' => new external_value(PARAM_RAW, 'summary'),
'summaryformat' => new external_value(PARAM_INT,
'the summary text Moodle format'),
'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, 'number of weeks/topics'),
'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,
'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),
'completionstartonenrol' => new external_value(PARAM_INT,
'1: begin tracking a student\'s progress in course completion
after course enrolment. 0: does not',
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),
), 'course'
)
);
}
/**
* Returns description of method parameters
*
* @return external_function_parameters
* @since Moodle 2.3
*/
public static function create_categories_parameters() {
return new external_function_parameters(
array(
'categories' => new external_multiple_structure(
new external_single_structure(
array(
'name' => new external_value(PARAM_TEXT, 'new category name'),
'parent' => new external_value(PARAM_INT,
'the parent category id inside which the new category will be created'),
'idnumber' => new external_value(PARAM_RAW,
'the new category idnumber', VALUE_OPTIONAL),
'description' => new external_value(PARAM_RAW,
'the new category description', VALUE_OPTIONAL),
'theme' => new external_value(PARAM_THEME,
'the new category theme. This option must be enabled on moodle',
VALUE_OPTIONAL),
)
)
)
)
);
}
/**
* Create categories
*
* @param array $categories - see create_categories_parameters() for the array structure
* @return array - see create_categories_returns() for the array structure
* @since Moodle 2.3
*/
public static function create_categories($categories) {
global $CFG, $DB;
require_once($CFG->dirroot . "/course/lib.php");
$params = self::validate_parameters(self::create_categories_parameters(),
array('categories' => $categories));
$transaction = $DB->start_delegated_transaction();
$createdcategories = array();
foreach ($params['categories'] as $category) {
if ($category['parent']) {
if (!$DB->record_exists('course_categories', array('id' => $category['parent']))) {
throw new moodle_exception('unknowcategory');
}
$context = context_coursecat::instance($category['parent']);
} else {
$context = context_system::instance();
}
self::validate_context($context);
require_capability('moodle/category:manage', $context);
// Check id number.
if (!empty($category['idnumber'])) { // Same as in course/editcategory_form.php .
if (textlib::strlen($category['idnumber'])>100) {
throw new moodle_exception('idnumbertoolong');
}
if ($existing = $DB->get_record('course_categories', array('idnumber' => $category['idnumber']))) {
if ($existing->id) {
throw new moodle_exception('idnumbertaken');
}
}
}
// Check name.
if (textlib::strlen($category['name'])>30) {
throw new moodle_exception('categorytoolong');
}
$newcategory = new stdClass();
$newcategory->name = $category['name'];
$newcategory->parent = $category['parent'];
$newcategory->idnumber = $category['idnumber'];
$newcategory->sortorder = 999; // Same as in the course/editcategory.php .
// Format the description.
if (!empty($category['description'])) {
$newcategory->description = $category['description'];
}
$newcategory->descriptionformat = FORMAT_HTML;
if (isset($category['theme']) and !empty($CFG->allowcategorythemes)) {
$newcategory->theme = $category['theme'];
}
$newcategory = create_course_category($newcategory);
// Populate special fields.
fix_course_sortorder();
$createdcategories[] = array('id' => $newcategory->id, 'name' => $newcategory->name);
}
$transaction->allow_commit();
return $createdcategories;
}
/**
* Returns description of method parameters
*
* @return external_function_parameters
* @since Moodle 2.3
*/
public static function create_categories_returns() {
return new external_multiple_structure(
new external_single_structure(
array(
'id' => new external_value(PARAM_INT, 'new category id'),
'name' => new external_value(PARAM_TEXT, 'new category name'),
)
)
);
}
/**
* 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_value(PARAM_INT,
'the summary text Moodle format', VALUE_DEFAULT, FORMAT_MOODLE),
'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, 'number of weeks/topics',
VALUE_DEFAULT, $courseconfig->numsections),
'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,
'How the hidden sections in the course are displayed to students',
VALUE_DEFAULT, $courseconfig->hiddensections),
'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),
'completionstartonenrol' => new external_value(PARAM_INT,
'1: begin tracking a student\'s progress in course completion after
course enrolment. 0: does not',
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),
)
), '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 = 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 = get_context_instance(CONTEXT_COURSECAT, $course['categoryid']);
try {
self::validate_context($context);
} catch (Exception $e) {
$exceptionparam = new stdClass();
$exceptionparam->message = $e->getMessage();
$exceptionparam->catid = $course['categoryid'];
throw new moodle_exception(
get_string('errorcatcontextnotvalid', 'webservice', $exceptionparam));
}
require_capability('moodle/course:create', $context);
// Make sure lang is valid
if (key_exists('lang', $course) and empty($availablelangs[$course['lang']])) {
throw new moodle_exception(
get_string('errorinvalidparam', 'webservice', 'lang'));
}
// Make sure theme is valid
if (key_exists('forcetheme', $course)) {
if (!empty($CFG->allowcoursethemes)) {
if (empty($availablethemes[$course['forcetheme']])) {
throw new moodle_exception(
get_string('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 (!key_exists('enablecompletion', $course)) {
$course['enablecompletion'] = $courseconfig->enablecompletion;
}
if (!key_exists('completionstartonenrol', $course)) {
$course['completionstartonenrol'] = $courseconfig->completionstartonenrol;
}
} else {
$course['enablecompletion'] = 0;
$course['completionstartonenrol'] = 0;
}
$course['category'] = $course['categoryid'];
//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'),
)
)
);
}
/**
* Returns description of method parameters
* @return external_function_parameters
*/
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 $courseids A list of course ids
*/
public static function delete_courses($courseids) {
global $CFG, $DB;
require_once($CFG->dirroot."/course/lib.php");
// Parameter validation.
$params = self::validate_parameters(self::delete_courses_parameters(), array('courseids'=>$courseids));
$transaction = $DB->start_delegated_transaction();
foreach ($params['courseids'] as $courseid) {
$course = $DB->get_record('course', array('id'=>$courseid), '*', MUST_EXIST);
// Check if the context is valid.
$coursecontext = context_course::instance($course->id);
self::validate_context($coursecontext);
// Check if the current user has enought permissions.
if (!can_delete_course($courseid)) {
throw new moodle_exception('cannotdeletecategorycourse', 'error', '', format_string($course->fullname)." (id: $courseid)");
}
delete_course($course, false);
}
$transaction->allow_commit();
return null;
}
/**
* Returns description of method result value
* @return external_description
*/
public static function delete_courses_returns() {
return null;
}
/**
* Returns description of method parameters
* @return external_function_parameters
* @since Moodle 2.3
*/
public static function delete_categories_parameters() {
return new external_function_parameters(
array(
'categories' => new external_multiple_structure(
new external_single_structure(
array(
'id' => new external_value(PARAM_INT, 'category id to delete'),
'newparent' => new external_value(PARAM_INT,
'the parent category to move the contents to, if specified', VALUE_OPTIONAL),
'recursive' => new external_value(PARAM_BOOL, '1: recursively delete all contents inside this
category, 0 (default): move contents to newparent or current parent category (except if parent is root)', VALUE_DEFAULT, 0)
)
)
)
)
);
}
/**
* Delete categories
* @param array $categories A list of category ids
* @return array
* @since Moodle 2.3
*/
public static function delete_categories($categories) {
global $CFG, $DB;
require_once($CFG->dirroot . "/course/lib.php");
// Validate parameters.
$params = self::validate_parameters(self::delete_categories_parameters(), array('categories' => $categories));
foreach ($params['categories'] as $category) {
if (!$deletecat = $DB->get_record('course_categories', array('id' => $category['id']))) {
throw new moodle_exception('unknowcategory');
}
$context = context_coursecat::instance($deletecat->id);
require_capability('moodle/category:manage', $context);
self::validate_context($context);
self::validate_context(get_category_or_system_context($deletecat->parent));
if ($category['recursive']) {
// If recursive was specified, then we recursively delete the category's contents.
category_delete_full($deletecat, false);
} else {
// In this situation, we don't delete the category's contents, we either move it to newparent or parent.
// If the parent is the root, moving is not supported (because a course must always be inside a category).
// We must move to an existing category.
if (!empty($category['newparent'])) {
if (!$DB->record_exists('course_categories', array('id' => $category['newparent']))) {
throw new moodle_exception('unknowcategory');
}
$newparent = $category['newparent'];
} else {
$newparent = $deletecat->parent;
}
// This operation is not allowed. We must move contents to an existing category.
if ($newparent == 0) {
throw new moodle_exception('movecatcontentstoroot');
}
$parentcontext = get_category_or_system_context($newparent);
require_capability('moodle/category:manage', $parentcontext);
self::validate_context($parentcontext);
category_delete_move($deletecat, $newparent, false);
}
}
}
/**
* Returns description of method parameters
* @return external_function_parameters
* @since Moodle 2.3
*/
public static function delete_categories_returns() {
return null;
}
}
/**
* Deprecated course external functions
*
* @package core_course
* @copyright 2009 Petr Skodak
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
* @since Moodle 2.0
* @deprecated Moodle 2.2 MDL-29106 - Please do not use this class any more.
* @todo MDL-31194 This will be deleted in Moodle 2.5.
* @see core_course_external
*/
class moodle_course_external extends external_api {
/**
* Returns description of method parameters
*
* @return external_function_parameters
* @since Moodle 2.0
* @deprecated Moodle 2.2 MDL-29106 - Please do not call this function any more.
* @todo MDL-31194 This will be deleted in Moodle 2.5.
* @see core_course_external::get_courses_parameters()
*/
public static function get_courses_parameters() {
return core_course_external::get_courses_parameters();
}
/**
* Get courses
*
* @param array $options
* @return array
* @since Moodle 2.0
* @deprecated Moodle 2.2 MDL-29106 - Please do not call this function any more.
* @todo MDL-31194 This will be deleted in Moodle 2.5.
* @see core_course_external::get_courses()
*/
public static function get_courses($options) {
return core_course_external::get_courses($options);
}
/**
* Returns description of method result value
*
* @return external_description
* @since Moodle 2.0
* @deprecated Moodle 2.2 MDL-29106 - Please do not call this function any more.
* @todo MDL-31194 This will be deleted in Moodle 2.5.
* @see core_course_external::get_courses_returns()
*/
public static function get_courses_returns() {
return core_course_external::get_courses_returns();
}
/**
* Returns description of method parameters
*
* @return external_function_parameters
* @since Moodle 2.0
* @deprecated Moodle 2.2 MDL-29106 - Please do not call this function any more.
* @todo MDL-31194 This will be deleted in Moodle 2.5.
* @see core_course_external::create_courses_parameters()
*/
public static function create_courses_parameters() {
return core_course_external::create_courses_parameters();
}
/**
* Create courses
*
* @param array $courses
* @return array courses (id and shortname only)
* @since Moodle 2.0
* @deprecated Moodle 2.2 MDL-29106 - Please do not call this function any more.
* @todo MDL-31194 This will be deleted in Moodle 2.5.
* @see core_course_external::create_courses()
*/
public static function create_courses($courses) {
return core_course_external::create_courses($courses);
}
/**
* Returns description of method result value
*
* @return external_description
* @since Moodle 2.0
* @deprecated Moodle 2.2 MDL-29106 - Please do not call this function any more.
* @todo MDL-31194 This will be deleted in Moodle 2.5.
* @see core_course_external::create_courses_returns()
*/
public static function create_courses_returns() {
return core_course_external::create_courses_returns();
}
}
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