Fix statistics calculation for imported Likert scale responses and support text rating answers
This commit is contained in:
pongpon pitisuk
+43
-5
@@ -45,6 +45,41 @@ switch ($action) {
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jsonResponse(['error' => 'Invalid action'], 400);
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}
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function parseRatingScore($str) {
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$trimmed = trim((string)$str);
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if ($trimmed === '') return null;
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if (is_numeric($trimmed)) {
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$num = (int)$trimmed;
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return ($num >= 1 && $num <= 5) ? $num : null;
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}
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if (preg_match('/^([1-5])\s*[\.\:\-\(\s]/u', $trimmed, $m)) {
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return (int)$m[1];
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}
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if (mb_strpos($trimmed, 'มากที่สุด') !== false || mb_strpos($trimmed, 'ดีมาก') !== false || mb_strpos($trimmed, 'ยอดเยี่ยม') !== false || mb_strpos($trimmed, 'ดีเยี่ยม') !== false || mb_strpos($trimmed, 'เห็นด้วยอย่างยิ่ง') !== false) {
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return 5;
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}
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if (mb_strpos($trimmed, 'น้อยที่สุด') !== false || mb_strpos($trimmed, 'ไม่เห็นด้วยอย่างยิ่ง') !== false) {
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return 1;
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}
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if (mb_strpos($trimmed, 'มาก') !== false || mb_strpos($trimmed, 'ดี') !== false || mb_strpos($trimmed, 'เห็นด้วย') !== false) {
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return 4;
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}
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if (mb_strpos($trimmed, 'ปานกลาง') !== false || mb_strpos($trimmed, 'พอใช้') !== false || mb_strpos($trimmed, 'ไม่แน่ใจ') !== false) {
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return 3;
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}
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if (mb_strpos($trimmed, 'น้อย') !== false || mb_strpos($trimmed, 'ควรปรับปรุง') !== false || mb_strpos($trimmed, 'ต้องปรับปรุง') !== false || mb_strpos($trimmed, 'ไม่เห็นด้วย') !== false) {
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return 2;
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}
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if (mb_strpos($trimmed, 'ปรับปรุง') !== false) {
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return 1;
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}
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return null;
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}
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function getStatsData($surveyId) {
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$db = getDB();
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@@ -78,7 +113,7 @@ function getStatsData($surveyId) {
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$aStmt = $db->prepare("
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SELECT answer_value, COUNT(*) as cnt
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FROM response_answers
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WHERE question_id = ? AND answer_value REGEXP '^[0-9]+$'
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WHERE question_id = ? AND answer_value != ''
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GROUP BY answer_value
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");
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$aStmt->execute([$q['id']]);
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@@ -89,10 +124,13 @@ function getStatsData($surveyId) {
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for ($i = 1; $i <= 5; $i++) $freq[$i] = 0;
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foreach ($freqData as $fd) {
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$val = (int)$fd['answer_value'];
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$rawVal = trim($fd['answer_value']);
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$cnt = (int)$fd['cnt'];
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$val = parseRatingScore($rawVal);
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if ($val >= 1 && $val <= 5) {
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$freq[$val] = (int)$fd['cnt'];
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for ($j = 0; $j < (int)$fd['cnt']; $j++) $values[] = $val;
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$freq[$val] += $cnt;
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for ($j = 0; $j < $cnt; $j++) $values[] = $val;
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}
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}
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@@ -116,7 +154,7 @@ function getStatsData($surveyId) {
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else $q['interpretation'] = 'น้อยที่สุด';
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} elseif (in_array($q['question_type'], ['dropdown', 'checkbox', 'radio'])) {
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$aStmt = $db->prepare("SELECT answer_value, COUNT(*) as cnt FROM response_answers WHERE question_id = ? GROUP BY answer_value ORDER BY cnt DESC");
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$aStmt = $db->prepare("SELECT answer_value, COUNT(*) as cnt FROM response_answers WHERE question_id = ? AND answer_value != '' GROUP BY answer_value ORDER BY cnt DESC");
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$aStmt->execute([$q['id']]);
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$q['frequencies'] = $aStmt->fetchAll();
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}
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@@ -41,7 +41,7 @@ if (!$handle) {
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jsonResponse(['error' => 'ไม่สามารถเปิดไฟล์ CSV ได้'], 500);
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}
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// Check UTF-8 BOM or UTF-16
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// Check UTF-8 BOM
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$bom = fread($handle, 3);
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if ($bom !== "\xEF\xBB\xBF") {
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rewind($handle);
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@@ -61,7 +61,7 @@ $cleanHeaders = array_map(function($h) {
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// Fetch all questions for this survey
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$stmt = $db->prepare("
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SELECT q.id, q.question_text, q.question_type
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SELECT q.id, q.question_text, q.question_type, q.options
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FROM survey_questions q
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JOIN survey_sections s ON q.section_id = s.id
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WHERE s.survey_id = ?
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@@ -75,16 +75,57 @@ if (empty($questions)) {
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jsonResponse(['error' => 'ไม่พบข้อคำถามในแบบสอบถามนี้'], 400);
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}
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// Map CSV Column Index -> question_id
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$colToQuestionMap = [];
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// Helper: normalize text for comparison
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function normalizeText($str) {
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$str = mb_strtolower($str, 'UTF-8');
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// Remove leading numbers or prefix like "1. ", "ข้อ 1. "
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$str = preg_replace('/^[\d๑-๙]+[\.\)\s\-:\x{00A0}]*/u', '', $str);
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$str = preg_replace('/^[\d๑-๙\.]*[\.\)\s\-:\x{00A0}]*/u', '', $str);
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return trim($str);
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}
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// Helper to parse Likert rating values from numbers or Thai text
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function parseRatingScore($str) {
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$trimmed = trim((string)$str);
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if ($trimmed === '') return null;
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if (is_numeric($trimmed)) {
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$num = (int)$trimmed;
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return ($num >= 1 && $num <= 5) ? $num : null;
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}
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if (preg_match('/^([1-5])\s*[\.\:\-\(\s]/u', $trimmed, $m)) {
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return (int)$m[1];
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}
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if (mb_strpos($trimmed, 'มากที่สุด') !== false || mb_strpos($trimmed, 'ดีมาก') !== false || mb_strpos($trimmed, 'ยอดเยี่ยม') !== false || mb_strpos($trimmed, 'ดีเยี่ยม') !== false || mb_strpos($trimmed, 'เห็นด้วยอย่างยิ่ง') !== false) {
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return 5;
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}
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if (mb_strpos($trimmed, 'น้อยที่สุด') !== false || mb_strpos($trimmed, 'ไม่เห็นด้วยอย่างยิ่ง') !== false) {
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return 1;
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}
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if (mb_strpos($trimmed, 'มาก') !== false || mb_strpos($trimmed, 'ดี') !== false || mb_strpos($trimmed, 'เห็นด้วย') !== false) {
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return 4;
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}
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if (mb_strpos($trimmed, 'ปานกลาง') !== false || mb_strpos($trimmed, 'พอใช้') !== false || mb_strpos($trimmed, 'ไม่แน่ใจ') !== false) {
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return 3;
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}
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if (mb_strpos($trimmed, 'น้อย') !== false || mb_strpos($trimmed, 'ควรปรับปรุง') !== false || mb_strpos($trimmed, 'ต้องปรับปรุง') !== false || mb_strpos($trimmed, 'ไม่เห็นด้วย') !== false) {
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return 2;
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}
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if (mb_strpos($trimmed, 'ปรับปรุง') !== false) {
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return 1;
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}
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return null;
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}
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// Map CSV Column Index -> question_id
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$colToQuestionMap = [];
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$questionsById = [];
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foreach ($questions as $q) {
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$questionsById[$q['id']] = $q;
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}
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foreach ($cleanHeaders as $colIdx => $headerText) {
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if (empty($headerText) || strtolower($headerText) === 'timestamp' || strtolower($headerText) === 'ประทับเวลา') {
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continue;
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@@ -92,11 +133,22 @@ foreach ($cleanHeaders as $colIdx => $headerText) {
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$normHeader = normalizeText($headerText);
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// Extract inside bracket if Google Forms grid header e.g. "Heading [Question]"
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$bracketText = '';
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if (preg_match('/\[(.*?)\]/', $headerText, $m)) {
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$bracketText = normalizeText($m[1]);
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}
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// Try exact or normalized matching against survey questions
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foreach ($questions as $q) {
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$normQText = normalizeText($q['question_text']);
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if ($normHeader === $normQText || strpos($normHeader, $normQText) !== false || strpos($normQText, $normHeader) !== false) {
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if (
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$normHeader === $normQText ||
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($bracketText !== '' && ($bracketText === $normQText || strpos($bracketText, $normQText) !== false || strpos($normQText, $bracketText) !== false)) ||
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strpos($normHeader, $normQText) !== false ||
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strpos($normQText, $normHeader) !== false
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) {
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$colToQuestionMap[$colIdx] = $q['id'];
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break;
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}
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@@ -104,7 +156,7 @@ foreach ($cleanHeaders as $colIdx => $headerText) {
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}
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// Fallback: If column mapping count is low, map columns sequentially to questions
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if (count($colToQuestionMap) === 0) {
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if (count($colToQuestionMap) < count($questions) / 2) {
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$qIdx = 0;
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foreach ($cleanHeaders as $colIdx => $headerText) {
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if (strtolower($headerText) === 'timestamp' || strtolower($headerText) === 'ประทับเวลา') continue;
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@@ -145,6 +197,15 @@ try {
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foreach ($colToQuestionMap as $colIdx => $qId) {
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$val = isset($row[$colIdx]) ? trim($row[$colIdx]) : '';
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if ($val !== '') {
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$targetQ = $questionsById[$qId] ?? null;
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// Normalize rating score if it's a 5-point rating scale question
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if ($targetQ && $targetQ['question_type'] === 'radio' && empty($targetQ['options'])) {
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$score = parseRatingScore($val);
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if ($score !== null) {
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$val = (string)$score;
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}
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}
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$stmtAns = $db->prepare("INSERT INTO response_answers (response_id, question_id, answer_value) VALUES (?, ?, ?)");
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$stmtAns->execute([$responseId, $qId, $val]);
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}
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+76
-15
@@ -28,6 +28,44 @@ if (!isAdmin()) {
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}
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}
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/**
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* Helper to parse Likert rating values from numbers or Thai text
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*/
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function parseRatingScore($str) {
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$trimmed = trim((string)$str);
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if ($trimmed === '') return null;
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if (is_numeric($trimmed)) {
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$num = (int)$trimmed;
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return ($num >= 1 && $num <= 5) ? $num : null;
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}
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if (preg_match('/^([1-5])\s*[\.\:\-\(\s]/u', $trimmed, $m)) {
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return (int)$m[1];
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}
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if (mb_strpos($trimmed, 'มากที่สุด') !== false || mb_strpos($trimmed, 'ดีมาก') !== false || mb_strpos($trimmed, 'ยอดเยี่ยม') !== false || mb_strpos($trimmed, 'ดีเยี่ยม') !== false || mb_strpos($trimmed, 'เห็นด้วยอย่างยิ่ง') !== false) {
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return 5;
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}
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if (mb_strpos($trimmed, 'น้อยที่สุด') !== false || mb_strpos($trimmed, 'ไม่เห็นด้วยอย่างยิ่ง') !== false) {
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return 1;
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}
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if (mb_strpos($trimmed, 'มาก') !== false || mb_strpos($trimmed, 'ดี') !== false || mb_strpos($trimmed, 'เห็นด้วย') !== false) {
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return 4;
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}
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if (mb_strpos($trimmed, 'ปานกลาง') !== false || mb_strpos($trimmed, 'พอใช้') !== false || mb_strpos($trimmed, 'ไม่แน่ใจ') !== false) {
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return 3;
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}
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if (mb_strpos($trimmed, 'น้อย') !== false || mb_strpos($trimmed, 'ควรปรับปรุง') !== false || mb_strpos($trimmed, 'ต้องปรับปรุง') !== false || mb_strpos($trimmed, 'ไม่เห็นด้วย') !== false) {
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return 2;
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}
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if (mb_strpos($trimmed, 'ปรับปรุง') !== false) {
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return 1;
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}
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return null;
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}
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switch ($action) {
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case 'summary':
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getSummary($surveyId);
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@@ -52,24 +90,44 @@ function getSummary($surveyId) {
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$stmt->execute([$surveyId]);
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$surveyInfo = $stmt->fetch();
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// Get overall mean and SD for radio/rating questions
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// Fetch all answers for rating questions in this survey and compute mean/sd
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$stmt = $db->prepare("
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SELECT
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AVG(CAST(ra.answer_value AS DECIMAL(10,2))) as overall_mean,
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STDDEV(CAST(ra.answer_value AS DECIMAL(10,2))) as overall_sd
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SELECT ra.answer_value
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FROM response_answers ra
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JOIN survey_questions sq ON ra.question_id = sq.id
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JOIN survey_sections ss ON sq.section_id = ss.id
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WHERE ss.survey_id = ? AND sq.question_type = 'radio' AND sq.options IS NULL AND ra.answer_value REGEXP '^[0-9]+$'
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WHERE ss.survey_id = ? AND sq.question_type = 'radio' AND sq.options IS NULL
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");
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$stmt->execute([$surveyId]);
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$overall = $stmt->fetch();
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$rows = $stmt->fetchAll(PDO::FETCH_COLUMN);
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$scores = [];
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foreach ($rows as $ans) {
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$sc = parseRatingScore($ans);
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if ($sc !== null) {
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$scores[] = $sc;
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}
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}
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$overallMean = 0;
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$overallSd = 0;
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if (count($scores) > 0) {
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$overallMean = array_sum($scores) / count($scores);
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if (count($scores) > 1) {
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$sumSq = 0;
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foreach ($scores as $s) {
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$sumSq += pow($s - $overallMean, 2);
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}
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$overallSd = sqrt($sumSq / (count($scores) - 1));
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}
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}
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jsonResponse([
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'survey' => $surveyInfo,
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'total_responses' => (int)$total,
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'overall_mean' => $overall['overall_mean'] ? round((float)$overall['overall_mean'], 2) : 0,
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'overall_sd' => $overall['overall_sd'] ? round((float)$overall['overall_sd'], 2) : 0
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'overall_mean' => round($overallMean, 2),
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'overall_sd' => round($overallSd, 2)
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]);
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}
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@@ -114,11 +172,11 @@ function getDetail($surveyId) {
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];
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if ($q['question_type'] === 'radio' && empty($q['options'])) {
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// Calculate mean, SD, frequency for rating questions (1-5)
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// Rating scale question (1-5)
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$aStmt = $db->prepare("
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SELECT answer_value, COUNT(*) as cnt
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FROM response_answers
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WHERE question_id = ? AND answer_value REGEXP '^[0-9]+$'
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WHERE question_id = ? AND answer_value != ''
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GROUP BY answer_value
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ORDER BY answer_value
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");
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@@ -134,11 +192,14 @@ function getDetail($surveyId) {
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}
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foreach ($freqData as $fd) {
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$val = (int)$fd['answer_value'];
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$rawVal = trim($fd['answer_value']);
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$cnt = (int)$fd['cnt'];
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$val = parseRatingScore($rawVal);
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if ($val >= 1 && $val <= 5) {
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$frequencies[$val]['count'] = (int)$fd['cnt'];
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$totalAnswers += (int)$fd['cnt'];
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for ($j = 0; $j < (int)$fd['cnt']; $j++) {
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$frequencies[$val]['count'] += $cnt;
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$totalAnswers += $cnt;
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for ($j = 0; $j < $cnt; $j++) {
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$values[] = $val;
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}
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}
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@@ -193,7 +254,7 @@ function getDetail($surveyId) {
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$aStmt = $db->prepare("
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SELECT answer_value, COUNT(*) as cnt
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FROM response_answers
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WHERE question_id = ?
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WHERE question_id = ? AND answer_value != ''
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GROUP BY answer_value
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ORDER BY cnt DESC
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");
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+29
-11
@@ -24,44 +24,62 @@
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}
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}
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</script>
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<link rel="stylesheet" href="css/style.css?v=6">
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<link rel="stylesheet" href="css/style.css?v=9">
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<style>
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body { background-color: var(--bg-color); font-family: 'Noto Sans Thai', sans-serif; }
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.stats-view-container {
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max-width: 1200px;
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margin: 0 auto;
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padding: 100px 20px 60px;
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padding: 90px 16px 60px;
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}
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.stats-header {
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position: fixed;
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top: 0;
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left: 0;
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right: 0;
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height: var(--header-height);
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background: rgba(255, 255, 255, 0.95);
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min-height: var(--header-height);
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background: rgba(255, 255, 255, 0.96);
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backdrop-filter: blur(12px);
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border-bottom: 3px solid #fbbf24;
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display: flex;
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align-items: center;
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justify-content: space-between;
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padding: 0 40px;
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padding: 10px 24px;
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z-index: 1000;
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box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
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gap: 12px;
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flex-wrap: wrap;
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}
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.stats-title {
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font-size: 1.25rem;
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font-size: 1.15rem;
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font-weight: 800;
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color: #1e3a8a;
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white-space: nowrap;
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overflow: hidden;
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text-overflow: ellipsis;
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max-width: 600px;
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}
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@media (max-width: 768px) {
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.stats-header {
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padding: 10px 12px;
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}
|
||||
.stats-title {
|
||||
max-width: 220px;
|
||||
font-size: 1rem;
|
||||
}
|
||||
.stats-view-container {
|
||||
padding: 120px 10px 40px;
|
||||
}
|
||||
}
|
||||
</style>
|
||||
</head>
|
||||
<body class="font-thai">
|
||||
<header class="stats-header">
|
||||
<div class="d-flex items-center gap-16">
|
||||
<button class="btn btn-ghost btn-sm" onclick="window.close()">✕ ปิด</button>
|
||||
<div class="d-flex items-center gap-12 overflow-hidden">
|
||||
<button class="btn btn-ghost btn-sm" onclick="window.close()">✕ <span class="hidden sm:inline">ปิด</span></button>
|
||||
<div class="stats-title" id="statsSurveyTitle">กำลังโหลดผลสถิติ...</div>
|
||||
</div>
|
||||
<div id="statsActions" class="d-flex gap-12">
|
||||
<div id="statsActions" class="d-flex gap-8 flex-wrap">
|
||||
<!-- Buttons will be rendered here -->
|
||||
</div>
|
||||
</header>
|
||||
@@ -75,7 +93,7 @@
|
||||
</div>
|
||||
</main>
|
||||
|
||||
<script src="js/app.js"></script>
|
||||
<script src="js/stats.js"></script>
|
||||
<script src="js/app.js?v=9"></script>
|
||||
<script src="js/stats.js?v=9"></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
Reference in New Issue
Block a user