added assorbimento corso

public/userarea/ajax/training_topics/save.php

@@ -1,6 +1,7 @@
 <?php
 require_once(__DIR__ . '/../auth_check.php');
 require_once(__DIR__ . '/../../class/db-functions.php');
+require_once(__DIR__ . '/../../include/training_coverage.php');
 
 header('Content-Type: application/json');
 
@@ -24,16 +25,58 @@ $is_mandatory = isset($_POST['is_mandatory']) && (int)$_POST['is_mandatory'] ===
 $freq = ($freqRaw === '' || $freqRaw === null) ? null : max(0, (int)$freqRaw);
 $rem  = ($remRaw  === '' || $remRaw  === null) ? 30   : max(0, (int)$remRaw);
 
+/* Coperture: corsi assorbiti da questo */
+$coveredIds = isset($_POST['covered_ids']) ? (array)$_POST['covered_ids'] : [];
+$coveredIds = array_values(array_unique(array_filter(array_map('intval', $coveredIds), function ($v) {
+    return $v > 0;
+})));
+
 if ($name === '') {
     echo json_encode(['success' => false, 'message' => 'Il nome del corso è obbligatorio.']);
     exit;
 }
 
+/**
+ * Riscrive le coperture del corso: cancella le vecchie e inserisce le nuove,
+ * scartando auto-copertura e relazioni che creerebbero un ciclo.
+ */
+function saveCoverage(PDO $pdo, int $topicId, array $coveredIds): array
+{
+    $skipped = [];
+
+    $pdo->prepare("DELETE FROM training_topic_coverage WHERE topic_id = :tid")
+        ->execute(['tid' => $topicId]);
+
+    if (!$coveredIds) return $skipped;
+
+    $ins = $pdo->prepare("
+        INSERT IGNORE INTO training_topic_coverage
+            (topic_id, covered_topic_id, inherit_expiry, created_at)
+        VALUES (:tid, :cid, 'own', NOW())
+    ");
+
+    foreach ($coveredIds as $cid) {
+        if ($cid === $topicId) {
+            continue;
+        }
+        if (tc_wouldCreateCycle($pdo, $topicId, $cid)) {
+            $skipped[] = $cid;
+            continue;
+        }
+        $ins->execute(['tid' => $topicId, 'cid' => $cid]);
+    }
+
+    return $skipped;
+}
+
 try {
+    $pdo->beginTransaction();
+
     if ($id > 0) {
         $check = $pdo->prepare("SELECT COUNT(*) FROM training_topics WHERE name = :name AND id <> :id");
         $check->execute(['name' => $name, 'id' => $id]);
         if ((int)$check->fetchColumn() > 0) {
+            $pdo->rollBack();
             echo json_encode(['success' => false, 'message' => 'Esiste già un altro corso con questo nome.']);
             exit;
         }
@@ -61,13 +104,27 @@ try {
             'id'           => $id,
         ]);
 
-        echo json_encode(['success' => true, 'id' => $id]);
+        $skipped = saveCoverage($pdo, $id, $coveredIds);
+        $pdo->commit();
+
+        $msg = $skipped
+            ? 'Corso aggiornato. Alcune coperture sono state ignorate perché avrebbero creato un riferimento circolare.'
+            : null;
+
+        echo json_encode(array_filter([
+            'success' => true,
+            'id'      => $id,
+            'message' => $msg,
+        ], function ($v) {
+            return $v !== null;
+        }));
         exit;
     }
 
     $check = $pdo->prepare("SELECT COUNT(*) FROM training_topics WHERE name = :name");
     $check->execute(['name' => $name]);
     if ((int)$check->fetchColumn() > 0) {
+        $pdo->rollBack();
         echo json_encode(['success' => false, 'message' => 'Esiste già un corso con questo nome.']);
         exit;
     }
@@ -88,7 +145,14 @@ try {
         'is_mandatory' => $is_mandatory,
     ]);
 
-    echo json_encode(['success' => true, 'id' => (int)$pdo->lastInsertId()]);
+    $newId = (int)$pdo->lastInsertId();
+    saveCoverage($pdo, $newId, $coveredIds);
+
+    $pdo->commit();
+    echo json_encode(['success' => true, 'id' => $newId]);
 } catch (Exception $e) {
+    if ($pdo->inTransaction()) {
+        $pdo->rollBack();
+    }
     echo json_encode(['success' => false, 'message' => $e->getMessage()]);
 }