/**
* Callback called by comment::get_comments() and comment::add(). Gives an opportunity to enforce blind-marking.
*
* @param array $comments
* @param stdClass $options
* @return array
* @throws comment_exception
*/
function setasksubmission_comments_comment_display($comments, $options)
{
global $CFG, $DB, $USER;
if ($options->commentarea != 'submission_comments' && $options->commentarea != 'submission_comments_upgrade') {
throw new comment_exception('invalidcommentarea');
}
if (!($submission = $DB->get_record('setask_submission', array('id' => $options->itemid)))) {
throw new comment_exception('invalidcommentitemid');
}
$context = $options->context;
$cm = $options->cm;
$course = $options->courseid;
require_once $CFG->dirroot . '/mod/setask/locallib.php';
$setaskment = new setask($context, $cm, $course);
if ($setaskment->get_instance()->id != $submission->setaskment) {
throw new comment_exception('invalidcontext');
}
if ($setaskment->is_blind_marking() && !empty($comments)) {
// Blind marking is being used, may need to map unique anonymous ids to the comments.
$usermappings = array();
$hiddenuserstr = trim(get_string('hiddenuser', 'setask'));
$guestuser = guest_user();
foreach ($comments as $comment) {
// Anonymize the comments.
if (empty($usermappings[$comment->userid])) {
// The blind-marking information for this commenter has not been generated; do so now.
$anonid = $setaskment->get_uniqueid_for_user($comment->userid);
$commenter = new stdClass();
$commenter->firstname = $hiddenuserstr;
$commenter->lastname = $anonid;
$commenter->picture = 0;
$commenter->id = $guestuser->id;
$commenter->email = $guestuser->email;
$commenter->imagealt = $guestuser->imagealt;
// Temporarily store blind-marking information for use in later comments if necessary.
$usermappings[$comment->userid]->fullname = fullname($commenter);
$usermappings[$comment->userid]->avatar = $setaskment->get_renderer()->user_picture($commenter, array('size' => 18, 'link' => false));
}
// Set blind-marking information for this comment.
$comment->fullname = $usermappings[$comment->userid]->fullname;
$comment->avatar = $usermappings[$comment->userid]->avatar;
$comment->profileurl = null;
}
}
return $comments;
}