/**
* Validates form data
*/
public function validation($data, $files)
{
global $DB;
$errors = parent::validation($data, $files);
$check = new stdClass();
$check->backpackurl = $data['backpackurl'];
$check->email = $data['email'];
$bp = new OpenBadgesBackpackHandler($check);
$request = $bp->curl_request('user');
if (isset($request->status) && $request->status == 'missing') {
$errors['email'] = get_string('error:nosuchuser', 'badges');
}
return $errors;
}
$reason = get_string('error:requesttimeout', 'badges');
} else {
$reason = get_string('error:requesterror', 'badges', $curl->errno);
}
badges_send_response('failure', $reason);
}
$data = json_decode($result);
if (!isset($data->status) || $data->status != 'okay') {
$reason = isset($data->reason) ? $data->reason : get_string('error:connectionunknownreason', 'badges');
badges_send_response('failure', $reason);
}
// Make sure email matches a backpack.
$check = new stdClass();
$check->backpackurl = BADGE_BACKPACKURL;
$check->email = $data->email;
$bp = new OpenBadgesBackpackHandler($check);
$request = $bp->curl_request('user');
if (isset($request->status) && $request->status == 'missing') {
$reason = get_string('error:backpackemailnotfound', 'badges', $data->email);
badges_send_response('failure', $reason);
} else {
if (empty($request->userId)) {
$reason = get_string('error:backpackdatainvalid', 'badges');
badges_send_response('failure', $reason);
} else {
$backpackuid = $request->userId;
}
}
// Insert record.
$obj = new stdClass();
$obj->userid = $USER->id;
$obj->collectionid = (int) $group;
if (!$DB->record_exists('badge_external', array('backpackid' => $obj->backpackid, 'collectionid' => $obj->collectionid))) {
$DB->insert_record('badge_external', $obj);
}
}
redirect(new moodle_url('/badges/mybadges.php'));
}
}
} else {
// If backpack is not connected, need to connect first.
$form = new edit_backpack_form();
if ($form->is_cancelled()) {
redirect(new moodle_url('/badges/mybadges.php'));
} else {
if ($data = $form->get_data()) {
$bp = new OpenBadgesBackpackHandler($data);
$obj = new stdClass();
$obj->userid = $data->userid;
$obj->email = $data->email;
$obj->backpackurl = $data->backpackurl;
$obj->backpackuid = $bp->curl_request('user')->userId;
$obj->autosync = 0;
$obj->password = '';
$DB->insert_record('badge_backpack', $obj);
redirect(new moodle_url('/badges/mybackpack.php'));
}
}
}
echo $OUTPUT->header();
$form->display();
echo $OUTPUT->footer();
/**
* 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;
}
