Files
ny-exam-platform/lib/DataService.php
T
nxxy335 d2f0908385 feat: 支持单套试卷同一提交人多次刷卷并展示
- DataService::build 新增 aggregateByStudent 按学号聚合:
  dedupe=true 仅保留最新一份;false 则每学号一行(代表成绩取最高分)
  附 attempts(次数) 与 attempts_list(每次提交明细),修正提交人数被多次提交inflate的问题
- api.php dashboard 透传 attempts/attempts_list;statOf 增加 attempts 求和;export 增加刷题次数列
- dashboard.php 成员榜加"刷N次"徽标,点击下钻弹窗看每次提交(时间/成绩/时长/暂存);hero 显示总提交次数
- 主统计页成绩明细同样加"刷N次"徽标与下钻弹窗
- stats 新增 attempts_total
2026-09-09 15:55:06 +08:00

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<?php
/**
* 数据组装:卷王答卷 -> 学号 / 姓名 / 成绩 / 提交时间 / 考试时长
*/
declare(strict_types=1);
class DataService
{
/** 容器型题目(分页、题组、说明)不参与取值 */
private const CONTAINER_TYPES = [
'pagination', 'page', 'group', 'survey', 'divider', 'tree',
];
/** 题目标题可能是富文本,去掉标签便于展示与匹配 */
private static function cleanTitle(string $t): string
{
$t = strip_tags($t);
$t = html_entity_decode($t, ENT_QUOTES | ENT_HTML5, 'UTF-8');
return trim(preg_replace('/\s+/u', ' ', $t) ?? '');
}
/**
* 展平题目树
* @return array<int,array{id:string,title:string,type:string,path:string}>
*/
public static function flattenQuestions(mixed $node, string $path = ''): array
{
$out = [];
if (!is_array($node)) {
return $out;
}
// children 在根或子节点
$self = $node;
$children = (isset($node['children']) && is_array($node['children'])) ? $node['children'] : null;
$id = isset($self['id']) ? (string)$self['id'] : '';
$title = isset($self['title']) ? self::cleanTitle((string)$self['title']) : '';
$type = isset($self['type']) ? (string)$self['type'] : '';
$isRoot = ($path === '');
if (!$isRoot && $id !== '' && !in_array(strtolower($type), self::CONTAINER_TYPES, true)) {
$out[] = [
'id' => $id,
'title' => $title !== '' ? $title : $id,
'type' => $type,
'path' => $path,
];
}
if ($children !== null) {
foreach ($children as $idx => $child) {
$subPath = $path === '' ? (string)($idx + 1) : $path . '-' . ($idx + 1);
foreach (self::flattenQuestions($child, $subPath) as $q) {
$out[] = $q;
}
}
}
return $out;
}
/** 根据关键词猜测"姓名"题 */
public static function guessNameQuestion(array $questions, string $keywords): array
{
$kws = array_values(array_filter(array_map('trim', preg_split('/[,,]/u', $keywords) ?: [])));
$candidates = [];
foreach ($questions as $q) {
$t = (string)$q['title'];
foreach ($kws as $kw) {
if ($kw !== '' && mb_stripos($t, $kw) !== false) {
$candidates[] = $q;
break;
}
}
}
return $candidates;
}
/**
* 组装结果
*/
public static function build(array $cfg, string $projectId, string $nameQid = ''): array
{
$client = new SurveyKingClient($cfg);
$students = Roster::all();
// 姓名 -> 学号 / 班级(规范化)
$studentInfo = [];
foreach ($students as $s) {
$k = ny_norm_name((string)$s['name']);
if ($k !== '') {
$studentInfo[$k] = [
'sid' => (string)$s['sid'],
'cls' => (string)($s['cls'] ?? ''),
'grp' => (string)($s['grp'] ?? ''),
];
}
}
$project = $client->getProject($projectId);
$survey = $project['survey'] ?? null;
if (is_string($survey) && $survey !== '') {
$decoded = json_decode($survey, true);
if (is_array($decoded)) {
$survey = $decoded;
}
}
$questions = self::flattenQuestions($survey);
$keywords = (string)($cfg['name_keywords'] ?? '姓名');
$nameCandidates = self::guessNameQuestion($questions, $keywords);
$autoQid = $nameCandidates[0]['id'] ?? '';
// 指定优先
$pickedQid = $nameQid !== '' ? $nameQid : $autoQid;
$candidateIds = [];
if ($pickedQid !== '') {
$candidateIds[] = $pickedQid;
}
foreach ($nameCandidates as $q) {
if (!in_array($q['id'], $candidateIds, true)) {
$candidateIds[] = $q['id'];
}
}
$answers = $client->listAnswers($projectId);
$includeTemp = !empty($cfg['include_temp_save']);
$dedupe = !empty($cfg['dedupe']);
$rawRows = []; // 已匹配学号的原始 row(每条 = 一次提交)
$unmatched = [];
foreach ($answers as $a) {
$tempSave = isset($a['tempSave']) ? (int)$a['tempSave'] : 1;
if (!$includeTemp && $tempSave === 0) {
continue; // 跳过暂存
}
$answerMap = isset($a['answer']) && is_array($a['answer']) ? $a['answer'] : [];
// 姓名:优先关键词命中的题目 -> 全量扫描能匹配名单的答案 -> 登录用户名
$name = '';
foreach ($candidateIds as $qid) {
if (isset($answerMap[$qid])) {
$v = ny_flatten_value($answerMap[$qid]);
if ($v !== '') {
$name = $v;
break;
}
}
}
if ($name === '') {
foreach ($questions as $q) {
$qid = (string)$q['id'];
if (!array_key_exists($qid, $answerMap)) {
continue;
}
$v = ny_flatten_value($answerMap[$qid]);
if ($v !== '' && isset($nameMap[ny_norm_name($v)])) {
$name = $v;
break;
}
}
}
if ($name === '' && $questions === []) {
foreach ($answerMap as $v) {
$s = ny_flatten_value($v);
if ($s !== '' && isset($nameMap[ny_norm_name($s)])) {
$name = $s;
break;
}
}
}
if ($name === '') {
$name = ny_str($a['createByName'] ?? '');
}
if ($name === '') {
$name = '(未填写姓名)';
}
// 成绩
$score = null;
if (isset($a['examScore']) && is_numeric($a['examScore'])) {
$score = (float)$a['examScore'];
}
// 提交时间
$ts = ny_to_timestamp($a['createAt'] ?? null);
if ($ts === 0) {
$ts = ny_to_timestamp($a['updateAt'] ?? null);
}
// 考试时长
$ai = $a['metaInfo']['answerInfo'] ?? [];
$start = is_array($ai) ? (int)($ai['startTime'] ?? 0) : 0;
$end = is_array($ai) ? (int)($ai['endTime'] ?? 0) : 0;
$dur = null;
if ($start > 0 && $end > $start) {
$dur = (int)round(($end - $start) / 1000);
}
$key = ny_norm_name($name);
$info = $studentInfo[$key] ?? null;
$sid = $info['sid'] ?? '';
$cls = $info['cls'] ?? '';
$grp = $info['grp'] ?? '';
$row = [
'sid' => $sid,
'name' => $name,
'cls' => $cls,
'grp' => $grp,
'score' => $score,
'submit_ts' => $ts,
'submit_at' => $ts > 0 ? date('Y-m-d H:i:s', $ts) : '-',
'duration' => $dur,
'duration_txt'=> ny_format_duration($dur),
'answer_id' => ny_str($a['id'] ?? ''),
'matched' => $sid !== '',
'temp_save' => $tempSave === 0,
];
if ($sid === '') {
$unmatched[] = $row;
continue;
}
$rawRows[] = $row;
}
// 按学号聚合:dedupe=true 仅保留最新一份;false 则每名一行(代表=最高分)
// 并附带 attempts(次数) / attempts_list(每次提交明细),供看板展示"多次刷题"
$agg = self::aggregateByStudent($rawRows, $dedupe);
$rows = $agg['rows'];
$attemptsTotal = $agg['attempts_total'];
// 成绩明细默认按提交时间降序(最新在前),学号作为次级排序
usort($rows, static function (array $x, array $y): int {
$d = ($y['submit_ts'] ?? 0) <=> ($x['submit_ts'] ?? 0);
if ($d !== 0) {
return $d;
}
$a = (string)$x['sid'];
$b = (string)$y['sid'];
if (is_numeric($a) && is_numeric($b)) {
return $a <=> $b;
}
return strnatcmp($a, $b);
});
// 缺考名单
$submittedSids = [];
foreach ($rows as $r) {
$submittedSids[(string)$r['sid']] = true;
}
$absent = [];
foreach ($students as $s) {
if (!isset($submittedSids[(string)$s['sid']])) {
$absent[] = [
'sid' => (string)$s['sid'],
'name' => (string)$s['name'],
'cls' => (string)($s['cls'] ?? ''),
'grp' => (string)($s['grp'] ?? ''),
];
}
}
usort($absent, static function (array $x, array $y): int {
$a = (string)$x['sid'];
$b = (string)$y['sid'];
if (is_numeric($a) && is_numeric($b)) {
return $a <=> $b;
}
return strnatcmp($a, $b);
});
// 统计
$scores = array_values(array_filter(array_map(static fn($r) => $r['score'], $rows), static fn($v) => $v !== null));
$durs = array_values(array_filter(array_map(static fn($r) => $r['duration'], $rows), static fn($v) => $v !== null));
$stats = [
'roster_total' => count($students),
'submitted' => count($rows),
'absent' => count($absent),
'unmatched' => count($unmatched),
'submit_rate' => count($students) > 0 ? round(count($rows) / count($students) * 100, 1) : 0,
'avg_score' => $scores !== [] ? round(array_sum($scores) / count($scores), 2) : null,
'max_score' => $scores !== [] ? max($scores) : null,
'min_score' => $scores !== [] ? min($scores) : null,
'avg_duration' => $durs !== [] ? (int)round(array_sum($durs) / count($durs)) : null,
'answer_total' => count($answers),
'attempts_total'=> $attemptsTotal,
];
return [
'project' => [
'id' => ny_str($project['id'] ?? $projectId),
'name' => ny_str($project['name'] ?? ''),
'mode' => ny_str($project['mode'] ?? ''),
],
'questions' => $questions,
'name_qid' => $pickedQid,
'name_candidates' => array_map(static fn($q) => ['id' => $q['id'], 'title' => $q['title']], $nameCandidates),
'rows' => $rows,
'absent' => $absent,
'unmatched' => $unmatched,
'stats' => $stats,
'roster' => $students,
'roster_count' => count($students),
'updated_at' => date('Y-m-d H:i:s'),
];
}
/**
* 按学号聚合一次提交的答卷记录,解决"同人多次刷卷"在看板中被当成多个人的问题。
* - dedupe=true:每学号仅保留提交时间最新的一份(原行为)
* - dedupe=false:每学号一行,代表成绩取最高分,附 attempts(次数) / attempts_list(每次提交明细)
*
* @param array $rows 已匹配学号的原始 row(每条 = 一次提交)
* @return array{rows:array, attempts_total:int}
*/
public static function aggregateByStudent(array $rows, bool $dedupe): array
{
$bySid = [];
foreach ($rows as $r) {
$bySid[(string)($r['sid'] ?? '')][] = $r;
}
$agg = [];
$attemptsTotal = 0;
foreach ($bySid as $sid => $list) {
$attemptsTotal += count($list);
// 升序:旧 -> 新
$sorted = $list;
usort($sorted, static function (array $x, array $y): int {
return ($x['submit_ts'] ?? 0) <=> ($y['submit_ts'] ?? 0);
});
$attemptsList = array_map(static function (array $a): array {
return [
'submit_at' => $a['submit_at'],
'submit_ts' => $a['submit_ts'],
'score' => $a['score'],
'duration' => $a['duration'],
'duration_txt' => $a['duration_txt'],
'answer_id' => $a['answer_id'],
'temp_save' => $a['temp_save'],
];
}, $sorted);
if ($dedupe) {
// 仅保留提交时间最新的一份(明细列表也只留这一份,与"只保留最新"语义一致)
$row = $sorted[count($sorted) - 1];
$row['attempts'] = 1;
$row['best_score'] = $row['score'];
$row['attempts_list'] = [$attemptsList[count($attemptsList) - 1]];
} else {
// 代表成绩取最高分(null 成绩不参与比较,全部为 null 时回退为最近一份)
$best = null;
$bestScore = null;
foreach ($sorted as $a) {
if ($a['score'] !== null && ($bestScore === null || $a['score'] > $bestScore)) {
$bestScore = $a['score'];
$best = $a;
}
}
if ($best === null) {
$best = $sorted[count($sorted) - 1];
}
$row = $best;
$row['attempts'] = count($list);
$row['best_score'] = $bestScore;
$row['attempts_list'] = $attemptsList;
}
$agg[] = $row;
}
return ['rows' => $agg, 'attempts_total' => $attemptsTotal];
}
}