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fix(web/group/assignment): db query perf
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Baoshuo Ren 2022-10-21 22:18:10 +08:00
parent b6b8efd5fb
commit 892a56a881
Signed by: baoshuo
GPG Key ID: 00CB9680AB29F51A
1 changed files with 7 additions and 1 deletions
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8
web/app/controllers/group_assignment.php
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@ -78,7 +78,13 @@
foreach ($problem_ids as $problem_id) { foreach ($problem_ids as $problem_id) {
$cond = "submitter = '{$user['username']}' AND problem_id = $problem_id AND submit_time <= '$submission_end_time'"; $cond = "submitter = '{$user['username']}' AND problem_id = $problem_id AND submit_time <= '$submission_end_time'";
$submission = DB::selectFirst("SELECT id, score FROM submissions INNER JOIN (SELECT MAX(score) AS score FROM submissions WHERE $cond) AS max USING (score) WHERE $cond ORDER BY submit_time DESC"); $max_score_query = DB::selectFirst("SELECT MAX(score) AS score FROM submissions WHERE $cond");
if ($max_score_query) {
$max_score = $max_score_query['score'];
} else {
$max_score = 0;
}
$submission = DB::selectFirst("SELECT id, score FROM submissions WHERE $cond AND score = $max_score ORDER BY submit_time DESC LIMIT 1");
if ($submission) { if ($submission) {
$row['scores'][] = [ $row['scores'][] = [