correct application of playlists rules

app/cache/video_summary.py

@@ -1,26 +1,9 @@
 # cache/video_summary.py
 import db
+from playlists import playlist_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.execute("DELETE FROM video_summary_materialized;")
+        conn.execute("CREATE TABLE IF NOT EXISTS video_summary_materialized AS SELECT * FROM video_summary;")
         conn.commit()