moodle_local_treestudyplan/classes/local/ungradedscanners/quiz_scanner.php

67 lines
2.5 KiB
PHP
Raw Normal View History

<?php
namespace local_treestudyplan\local\ungradedscanners;
require_once($CFG->dirroot.'/question/engine/states.php'); // for reading question state
class quiz_scanner extends scanner_base {
protected function get_ungraded_submissions(){
// count all users who have one or more questions that still need grading
global $DB;
// First find all question attempts that need grading
$sql = "SELECT qza.id as submissionid, qza.userid as userid, qas.questionattemptid as attempt_id, qas.sequencenumber as sequencenumber
FROM {question_attempt_steps} qas
JOIN {question_attempts} qna ON qas.questionattemptid = qna.id
JOIN {quiz_attempts} qza ON qna.questionusageid = qza.uniqueid
WHERE qas.state = 'needsgrading' AND qza.quiz = {$this->gi->iteminstance}";
$rs = $DB->get_recordset_sql($sql);
$submissions = [];
foreach($rs as $r){
// Now, check if
$maxstate_sql = "SELECT MAX(qas.sequencenumber) FROM {question_attempt_steps} qas WHERE qas.questionattemptid = {$r->attempt_id}";
$max = $DB->get_field_sql($maxstate_sql);
if($r->sequencenumber == $max){
$submissions[$r->userid] = true; // set array index based on user id, to avoid checking if value is in array
}
}
$rs->close();
return array_keys($submissions);
}
public function count_ungraded($course_userids=[]){
$ungraded = $this->get_ungraded_submissions();
if(count($course_userids) > 0){
$ungraded = array_intersect($ungraded,$course_userids);
}
return count($ungraded);
}
public function count_graded($course_userids=[]){
// count all users who submitted one or more finished tests.
global $DB;
$sql = "SELECT DISTINCT g.userid
FROM {grade_grades} g
LEFT JOIN {grade_items} gi on g.itemid = gi.id
WHERE gi.itemmodule = 'quiz' AND gi.iteminstance = {$this->gi->iteminstance}
AND g.finalgrade IS NOT NULL"; // MAy turn out to be needed, dunno
$graded = $DB->get_fieldset_sql($sql);
if(count($course_userids) > 0){
$graded = array_intersect($graded,$course_userids);
}
return count($graded);
}
public function has_ungraded_submission($userid)
{
$ungraded = $this->get_ungraded_submissions();
return in_array($userid,$ungraded);
}
}