program2 exports the playlists

app/cache/video_summary.py

@@ -0,0 +1,26 @@
+# cache/video_summary.py
+import db
+
+def rebuild_video_summary():
+    with db.get_conn() as conn:
+        conn.execute("DROP TABLE IF EXISTS video_summary")
+        conn.execute("""
+            CREATE TABLE video_summary AS
+            SELECT
+                v.file_name,
+                v.raw_file,
+                v.mp4_file,
+                v.record_datetime,
+                v.day_of_week,
+                v.difficulty_level,
+                v.address,
+                GROUP_CONCAT(DISTINCT l.name) AS labels,
+                GROUP_CONCAT(DISTINCT p.name) AS playlists
+            FROM videos v
+            LEFT JOIN video_labels vl ON vl.video_file_name = v.file_name
+            LEFT JOIN labels l ON l.id = vl.label_id
+            LEFT JOIN video_playlists vp ON vp.video_file_name = v.file_name
+            LEFT JOIN playlists p ON p.id = vp.playlist_id
+            GROUP BY v.file_name
+        """)
+        conn.commit()