}
//complete course data with site name and course content
$courseids = array();
$courseimagenumbers = array();
//number of screenshots of all courses (must be exact same order than $courseids)
if (!empty($courses)) {
foreach ($courses as $tmpcourse) {
$courseids[] = $tmpcourse->id;
}
$courseidslist = implode(',', $courseids);
$sites = $DB->get_records_sql('SELECT site.* FROM {hub_course_directory} course, {hub_site_directory} site WHERE ' . 'course.id IN (' . $courseidslist . ') AND site.id = course.siteid GROUP BY site.id');
foreach ($courses as &$course) {
//get site name for each courses
$course->site = $sites[$course->siteid];
//get course content for each course
$contents = $hub->get_course_contents($course->id);
if (!empty($contents)) {
foreach ($contents as $content) {
$course->contents[] = $content;
}
}
//some information for the YUI imagegallery javascript
$courseimagenumbers[] = $course->screenshots;
}
//add rating information to the course
require_once $CFG->dirroot . '/rating/lib.php';
$ratingoptions = new stdclass();
$ratingoptions->context = context_course::instance(SITEID);
//front page course
$ratingoptions->items = $courses;
$ratingoptions->aggregate = RATING_AGGREGATE_COUNT;
/**
* Get courses
* @return array courses
*/
public static function get_courses($search, $downloadable, $enrollable, $options = array())
{
global $DB, $CFG, $USER;
// Ensure the current user is allowed to run this function
$context = context_system::instance();
self::validate_context($context);
require_capability('local/hub:view', $context);
$params = self::validate_parameters(self::get_courses_parameters(), array('search' => $search, 'downloadable' => $downloadable, 'enrollable' => $enrollable, 'options' => $options));
//retieve siteid
$onlyvisible = true;
$token = optional_param('wstoken', '', PARAM_ALPHANUM);
$localhub = new local_hub();
$communication = $localhub->get_communication(WSSERVER, REGISTEREDSITE, null, $token);
if (!empty($communication)) {
$siteurl = $communication->remoteurl;
if (!empty($siteurl)) {
$site = $localhub->get_site_by_url($siteurl);
if (!empty($site) and !empty($params['options']['allsitecourses'])) {
$params['options']['siteid'] = $site->id;
$onlyvisible = false;
}
}
}
$cleanedoptions = $params['options'];
$cleanedoptions['onlyvisible'] = $onlyvisible;
$cleanedoptions['search'] = $params['search'];
$cleanedoptions['downloadable'] = $params['downloadable'];
$cleanedoptions['enrollable'] = $params['enrollable'];
//sort method
if (!empty($params['options']['orderby'])) {
switch ($params['options']['orderby']) {
case 'newest':
$cleanedoptions['orderby'] = 'timemodified DESC';
break;
case 'eldest':
$cleanedoptions['orderby'] = 'timemodified ASC';
break;
case 'publisher':
$cleanedoptions['orderby'] = 'publishername ASC';
break;
case 'fullname':
$cleanedoptions['orderby'] = 'fullname ASC';
break;
case 'ratingaverage':
$cleanedoptions['orderby'] = 'ratingaverage DESC';
break;
default:
unset($cleanedoptions['orderby']);
break;
}
}
//retrieve the range of courses to return
$maxcourses = get_config('local_hub', 'maxwscourseresult');
if (empty($maxcourses)) {
throw new moodle_exception('nocoursereturn', 'local_hub');
}
$hub = new local_hub();
//the site is requesting all his own course
if (!empty($params['options']['siteid'])) {
$maxcourses = 0;
$limitfrom = 0;
} else {
//the site is doing a normal courses request (not focussed on its own courses)
//the hub server limit the return number of course
$limitfrom = isset($params['options']['givememore']) ? $params['options']['givememore'] : 0;
}
$courses = $hub->get_courses($cleanedoptions, $limitfrom, $maxcourses);
$coursetotal = $hub->get_courses($cleanedoptions, 0, 0, true);
//load ratings and comments
if (!empty($courses)) {
require_once $CFG->dirroot . '/comment/lib.php';
}
//create result
$coursesresult = array();
foreach ($courses as $course) {
$courseinfo = array();
$courseinfo['id'] = $course->id;
$courseinfo['fullname'] = $course->fullname;
$courseinfo['shortname'] = $course->shortname;
$courseinfo['description'] = $course->description;
$courseinfo['language'] = $course->language;
$courseinfo['publishername'] = $course->publishername;
//return publisher email, privacy and site course id
// only if the request has been done by the site
if (!empty($site) and $course->siteid == $site->id) {
$courseinfo['publisheremail'] = $course->publisheremail;
$courseinfo['privacy'] = $course->privacy;
$courseinfo['sitecourseid'] = $course->sitecourseid;
}
$courseinfo['contributornames'] = $course->contributornames;
$courseinfo['coverage'] = $course->coverage;
$courseinfo['creatorname'] = $course->creatorname;
$courseinfo['licenceshortname'] = $course->licenceshortname;
$courseinfo['subject'] = $course->subject;
$courseinfo['audience'] = $course->audience;
$courseinfo['educationallevel'] = $course->educationallevel;
$courseinfo['creatornotes'] = $course->creatornotes;
$courseinfo['creatornotesformat'] = $course->creatornotesformat;
$courseinfo['enrollable'] = $course->enrollable;
$courseinfo['screenshots'] = $course->screenshots;
$courseinfo['timemodified'] = $course->timemodified;
if (!empty($course->courseurl)) {
$courseinfo['courseurl'] = $course->courseurl;
} else {
if (!empty($course->demourl)) {
//courseurl is mandatory, demo url can be blank
$courseinfo['demourl'] = $course->demourl;
} else {
$courseurl = new moodle_url($CFG->wwwroot, array('sesskey' => sesskey(), 'redirectcourseid' => $course->id));
$courseinfo['demourl'] = $courseurl->out(false);
}
}
//outcomes
if (!empty($course->outcomes)) {
foreach ($course->outcomes as $outcome) {
$courseinfo['outcomes'][] = array('fullname' => $outcome);
}
}
//get content
$contents = $hub->get_course_contents($course->id);
if (!empty($contents)) {
foreach ($contents as $content) {
$tmpcontent = array();
$tmpcontent['moduletype'] = $content->moduletype;
$tmpcontent['modulename'] = $content->modulename;
$tmpcontent['contentcount'] = $content->contentcount;
$courseinfo['contents'][] = $tmpcontent;
}
}
//set ratings
if ($course->ratingcount) {
//$courseinfo['rating']['aggregate'] = (float) $course->ratingaverage;
//the ratings has been changed from scale 0 to 10 to a "Featured" award
$courseinfo['rating']['aggregate'] = HUB_COURSE_RATING_SCALE;
}
$courseinfo['rating']['count'] = (int) $course->ratingcount;
$courseinfo['rating']['scaleid'] = HUB_COURSE_RATING_SCALE;
//get comments
$commentoptions->context = context_course::instance(SITEID);
$commentoptions->area = 'local_hub';
$commentoptions->itemid = $course->id;
$commentoptions->showcount = true;
$commentoptions->component = 'local_hub';
$course->comment = new comment($commentoptions);
$comments = $course->comment->get_comments();
foreach ($comments as $comment) {
$coursecomment = array();
$coursecomment['comment'] = clean_param($comment->content, PARAM_TEXT);
$coursecomment['commentator'] = clean_param($comment->fullname, PARAM_TEXT);
$coursecomment['date'] = $comment->timecreated;
$courseinfo['comments'][] = $coursecomment;
}
//get backup size
$returnthecourse = true;
if (!$course->enrollable) {
if ($hub->backup_exits($course->id)) {
$courseinfo['backupsize'] = $hub->get_backup_size($course->id);
} else {
// We don't return the course when backup file is not found.
$returnthecourse = false;
}
}
if ($returnthecourse) {
$coursesresult[] = $courseinfo;
}
}
return array('courses' => $coursesresult, 'coursetotal' => $coursetotal);
}