refactored export functionality

2026-05-22 14:17:02 +02:00
parent 52d4ef42dc
commit 2616238dc8
6 changed files with 206 additions and 157 deletions
--- a/lib/questionnaire_reachability.php
+++ b/lib/questionnaire_reachability.php
@ -0,0 +1,155 @@
+<?php
+/**
+ * Branching walk for questionnaire exports/results (matches app all-in-one logic).
+ * Only questions on the active path from current answers are "reachable".
+ */
+
+function qrb_load_path_questions(PDO $pdo, string $questionnaireId): array {
+    $stmt = $pdo->prepare("
+        SELECT questionID, defaultText, type, orderIndex, configJson
+        FROM question
+        WHERE questionnaireID = :qn
+        ORDER BY orderIndex
+    ");
+    $stmt->execute([':qn' => $questionnaireId]);
+    $path = [];
+
+    foreach ($stmt->fetchAll(PDO::FETCH_ASSOC) as $row) {
+        $parts = explode('__', $row['questionID']);
+        $shortId = end($parts);
+        $config = json_decode($row['configJson'] ?? '{}', true) ?: [];
+
+        $options = [];
+        $ao = $pdo->prepare("
+            SELECT defaultText, nextQuestionId
+            FROM answer_option
+            WHERE questionID = :qid
+            ORDER BY orderIndex
+        ");
+        $ao->execute([':qid' => $row['questionID']]);
+        foreach ($ao->fetchAll(PDO::FETCH_ASSOC) as $opt) {
+            $options[] = [
+                'text'           => $opt['defaultText'],
+                'nextQuestionId' => $opt['nextQuestionId'] ?? '',
+            ];
+        }
+
+        $symptoms = [];
+        if (!empty($config['symptoms']) && is_array($config['symptoms'])) {
+            $symptoms = $config['symptoms'];
+        }
+
+        $path[] = [
+            'questionID' => $row['questionID'],
+            'shortId'    => $shortId,
+            'type'       => $row['type'] ?? '',
+            'storageKey' => $row['defaultText'] !== '' ? $row['defaultText'] : $shortId,
+            'options'    => $options,
+            'symptoms'   => $symptoms,
+            'isLastPage' => ($row['type'] ?? '') === 'last_page',
+        ];
+    }
+
+    return $path;
+}
+
+/**
+ * @param array<string, array> $answerMap keyed by full questionID
+ * @return array<string, bool> reachable full questionIDs
+ */
+function qrb_reachable_question_ids(PDO $pdo, string $questionnaireId, array $answerMap, array $optionTextMap): array {
+    $path = qrb_load_path_questions($pdo, $questionnaireId);
+    $reachable = [];
+    $shortToIndex = [];
+    foreach ($path as $idx => $q) {
+        $shortToIndex[$q['shortId']] = $idx;
+    }
+
+    $i = 0;
+    $count = count($path);
+    while ($i < $count) {
+        $q = $path[$i];
+        if ($q['isLastPage']) {
+            $i++;
+            continue;
+        }
+
+        $reachable[$q['questionID']] = true;
+
+        $nextTarget = qrb_resolve_next_target($q, $answerMap, $optionTextMap);
+        if ($nextTarget !== null) {
+            foreach ($path as $pq) {
+                if ($pq['isLastPage'] && $pq['shortId'] === $nextTarget) {
+                    break 2;
+                }
+            }
+            if (isset($shortToIndex[$nextTarget])) {
+                $i = $shortToIndex[$nextTarget];
+            } else {
+                $i++;
+            }
+        } elseif (qrb_has_branching_options($q) && !qrb_has_branch_answer($q, $answerMap, $optionTextMap)) {
+            break;
+        } else {
+            $i++;
+        }
+    }
+
+    return $reachable;
+}
+
+function qrb_resolve_next_target(array $q, array $answerMap, array $optionTextMap): ?string {
+    $answer = $answerMap[$q['questionID']] ?? null;
+    if ($answer === null) {
+        return null;
+    }
+
+    $selectedText = qrb_answer_display_value($answer, $optionTextMap);
+    if ($selectedText === null || $selectedText === '') {
+        return null;
+    }
+
+    foreach ($q['options'] as $opt) {
+        if ($opt['text'] === $selectedText && $opt['nextQuestionId'] !== '') {
+            return $opt['nextQuestionId'];
+        }
+    }
+
+    return null;
+}
+
+function qrb_has_branching_options(array $q): bool {
+    foreach ($q['options'] as $opt) {
+        if ($opt['nextQuestionId'] !== '') {
+            return true;
+        }
+    }
+    return false;
+}
+
+function qrb_has_branch_answer(array $q, array $answerMap, array $optionTextMap): bool {
+    $answer = $answerMap[$q['questionID']] ?? null;
+    if ($answer === null) {
+        return false;
+    }
+    $v = qrb_answer_display_value($answer, $optionTextMap);
+    return $v !== null && $v !== '';
+}
+
+function qrb_answer_display_value(array $answer, array $optionTextMap): ?string {
+    if (!empty($answer['answerOptionID']) && isset($optionTextMap[$answer['answerOptionID']])) {
+        return $optionTextMap[$answer['answerOptionID']];
+    }
+    if (isset($answer['freeTextValue']) && $answer['freeTextValue'] !== '') {
+        return (string)$answer['freeTextValue'];
+    }
+    if (isset($answer['numericValue']) && $answer['numericValue'] !== null && $answer['numericValue'] !== '') {
+        return (string)$answer['numericValue'];
+    }
+    return null;
+}
+
+function qrb_format_cell(array $answer, array $optionTextMap): string {
+    $v = qrb_answer_display_value($answer, $optionTextMap);
+    return $v ?? '';
+}