/**
* Returns external backpack settings and badges from this backpack.
*
* This function first checks if badges for the user are cached and
* tries to retrieve them from the cache. Otherwise, badges are obtained
* through curl request to the backpack.
*
* @param int $userid Backpack user ID.
* @param boolean $refresh Refresh badges collection in cache.
* @return null|object Returns null is there is no backpack or object with backpack settings.
*/
function get_backpack_settings($userid, $refresh = false)
{
global $DB;
require_once dirname(dirname(__FILE__)) . '/badges/lib/backpacklib.php';
// Try to get badges from cache first.
$badgescache = cache::make('core', 'externalbadges');
$out = $badgescache->get($userid);
if ($out !== false && !$refresh) {
return $out;
}
// Get badges through curl request to the backpack.
$record = $DB->get_record('badge_backpack', array('userid' => $userid));
if ($record) {
$backpack = new OpenBadgesBackpackHandler($record);
$out = new stdClass();
$out->backpackurl = $backpack->get_url();
if ($collections = $DB->get_records('badge_external', array('backpackid' => $record->id))) {
$out->totalcollections = count($collections);
$out->totalbadges = 0;
$out->badges = array();
foreach ($collections as $collection) {
$badges = $backpack->get_badges($collection->collectionid);
if (isset($badges->badges)) {
$out->badges = array_merge($out->badges, $badges->badges);
$out->totalbadges += count($out->badges);
} else {
$out->badges = array_merge($out->badges, array());
}
}
} else {
$out->totalbadges = 0;
$out->totalcollections = 0;
}
$badgescache->set($userid, $out);
return $out;
}
return null;
}
/**
* Returns external backpack settings and badges from this backpack.
*
* @param int $userid Backpack user ID.
* @return null|object Returns null is there is no backpack or object with backpack settings.
*/
function get_backpack_settings($userid)
{
global $DB;
require_once dirname(dirname(__FILE__)) . '/badges/lib/backpacklib.php';
$record = $DB->get_record('badge_backpack', array('userid' => $userid));
if ($record) {
$backpack = new OpenBadgesBackpackHandler($record);
$out = new stdClass();
$out->backpackurl = $backpack->get_url();
if ($collections = $DB->get_records('badge_external', array('backpackid' => $record->id))) {
$out->totalcollections = count($collections);
$out->totalbadges = 0;
$out->badges = array();
foreach ($collections as $collection) {
$badges = $backpack->get_badges($collection->collectionid);
if (isset($badges->badges)) {
$out->badges = array_merge($out->badges, $badges->badges);
$out->totalbadges += count($out->badges);
} else {
$out->badges = array_merge($out->badges, array());
}
}
} else {
$out->totalbadges = 0;
$out->totalcollections = 0;
}
return $out;
}
return null;
}
