/**
* Removes tutor from enrolled tutors on Turnitin
*
* @param object $cm The moodle course module object for this instance
* @param object $turnitintool The turnitintool object is for this activity
* @param int $tutor The moodle user id to unenrol
* @return string Returns the output to print to screen
*/
function turnitintool_remove_tiitutor($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);
$tii = new turnitintool_commclass($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'));
if (count($tutors) == 1) {
$return->error = get_string('turnitintutorsremove_errorlast', 'turnitintool');
$return->array = null;
} else {
if ($owner = turnitintool_get_owner($turnitintool->course) and $owner->id == $tutor) {
foreach ($tutors as $tutorobj) {
if ((string) $tutorobj->email != $owner->email) {
$loaderbar->total = $loaderbar->total + 1;
$post->new_teacher_email = (string) $tutorobj->email;
$tii->changeOwner($post, get_string('changingowner', 'turnitintool'));
unset($post->new_teacher_email);
$newowner = turnitintool_get_record_select('user', "email='" . $tutorobj->email . "'");
$tiicourse = turnitintool_get_record('turnitintool_courses', 'courseid', $turnitintool->course);
$tiicourse->ownerid = $newowner->id;
turnitintool_update_record('turnitintool_courses', $tiicourse);
break;
}
}
}
$tii->unenrolUser($post, get_string('turnitintutorsretrieving', 'turnitintool'));
}
if ($tii->getRerror()) {
$return->error = $tii->getRmessage();
$return->array = null;
} else {
$return->array = $tutors;
}
$tii->endSession();
}
return $return;
}
