Update Saqel Platform: 2026-09-02 01:23:51

backend/app/Controllers/VideoController.php

@@ -392,6 +392,17 @@ class VideoController
             $lesson = Database::selectOne("SELECT * FROM lessons WHERE id = ? LIMIT 1", [(int)$rawId]);
         } elseif (!empty($rawId)) {
             $lesson = Database::selectOne("SELECT * FROM lessons WHERE title LIKE ? OR local_path LIKE ? OR markdown_content LIKE ? LIMIT 1", ["%{$rawId}%", "%{$rawId}%", "%{$rawId}%"]);
+            // Flutter curriculum lessons use the manifest slug (e.g. u1_l1_*),
+            // while the database stores the canonical lesson title.
+            if (!$lesson) {
+                $manifestLesson = CurriculumService::findLessonById($rawId);
+                if ($manifestLesson && !empty($manifestLesson['title'])) {
+                    $lesson = Database::selectOne(
+                        "SELECT * FROM lessons WHERE title = ? OR markdown_content LIKE ? LIMIT 1",
+                        [$manifestLesson['title'], '%' . ($manifestLesson['file'] ?? '') . '%']
+                    );
+                }
+            }
         }
 
         if (!$lesson) {

backend/app/Services/CurriculumService.php

@@ -192,6 +192,25 @@ class CurriculumService
         return [];
     }
 
+    /** Resolve a manifest lesson slug to its canonical title/file. */
+    public static function findLessonById(string $lessonId): ?array
+    {
+        $walk = function ($node) use (&$walk, $lessonId): ?array {
+            if (!is_array($node)) return null;
+            if (isset($node['lessons']) && is_array($node['lessons'])) {
+                foreach ($node['lessons'] as $lesson) {
+                    if (is_array($lesson) && (string)($lesson['id'] ?? '') === $lessonId) return $lesson;
+                }
+            }
+            foreach ($node as $value) {
+                $found = $walk($value);
+                if ($found !== null) return $found;
+            }
+            return null;
+        };
+        return $walk(self::getCurriculumTree());
+    }
+
     /**
      * Save/Update Complete Curriculum Tree Manifest
      */