/**
* Adds / Deletes a tutor to the list enrolled on the Turnitin Class
*
* @param object $cm The moodle course module object for this instance
* @param object $turnitintool The turnitintool object is for this activity
* @param int $tutor The moodle user id to unenrol
* @return string Returns the output to print to screen
*/
function turnitintool_add_tiitutor($cm, $turnitintool, $tutor)
{
$return = null;
if (has_capability('mod/turnitintool:grade', turnitintool_get_context('MODULE', $cm->id))) {
$loaderbar = new turnitintool_loaderbarclass(4);
$thisuser = turnitintool_get_moodleuser($tutor);
$thisuid = turnitintool_getUID($thisuser);
if (is_null($thisuid)) {
$tii = new turnitintool_commclass($thisuid, $thisuser->firstname, $thisuser->lastname, $thisuser->email, 2, $loaderbar);
$tii->startSession();
turnitintool_usersetup($thisuser, get_string('userprocess', 'turnitintool'), $tii, $loaderbar);
$tii->endSession();
$thisuid = turnitintool_getUID($thisuser);
}
$tii = new turnitintool_commclass($thisuid, $thisuser->firstname, $thisuser->lastname, $thisuser->email, 2, $loaderbar);
$tii->startSession();
$post = new stdClass();
$post->cid = turnitintool_getCID($turnitintool->course);
$post->ctl = turnitintool_getCTL($turnitintool->course);
$return = new stdClass();
$return->error = null;
$return->array = null;
$tutors = $tii->getTutors($post, get_string('turnitintutorsretrieving', 'turnitintool'));
$tii->enrolTutor($post, get_string('turnitintutorsadding', 'turnitintool'));
if ($tii->getRerror()) {
$return->error = $tii->getRmessage();
$return->array = null;
} else {
$return->array = $tutors;
}
$tii->endSession();
}
return $return;
}
