if ($submissionid) {
$subinstance = $DB->get_record('vpl_submissions', array('id' => $submissionid));
} else {
$subinstance = $vpl->last_user_submission($userid);
}
} else {
//Download own submission
$vpl->require_capability(VPL_VIEW_CAPABILITY);
$userid = $USER->id;
$grader = FALSE;
if ($submissionid && $vpl->has_capability(VPL_GRADE_CAPABILITY)) {
$subinstance = $DB->get_record('vpl_submissions', array('id' => $submissionid));
} else {
$subinstance = $vpl->last_user_submission($userid);
}
$vpl->password_check();
}
//Check consistence
if (!$subinstance) {
throw new Exception(get_string('nosubmission', VPL));
}
if ($subinstance->vpl != $vpl->get_instance()->id) {
throw new Exception(get_string('invalidcourseid'));
}
$submissionid = $subinstance->id;
if ($vpl->is_inconsistent_user($subinstance->userid, $userid)) {
throw new Exception('vpl submission user inconsistence');
}
if ($vpl->get_instance()->id != $subinstance->vpl) {
throw new Exception('vpl submission vpl inconsistence');
}
