Update app

app/__init__.py

@@ -77,6 +77,57 @@ def create_app():
                 if settings_cols and "public_domain" not in settings_cols:
                     db.session.execute(db.text("ALTER TABLE app_settings ADD COLUMN public_domain VARCHAR(255)"))
                     db.session.commit()
+
+                # DisplayPlaylist: create association table for multi-playlist displays.
+                dp_cols = [
+                    r[1] for r in db.session.execute(db.text("PRAGMA table_info(display_playlist)")).fetchall()
+                ]
+                if not dp_cols:
+                    # Create association table for multi-playlist displays.
+                    # Keep schema compatible with older DBs that include an autoincrement id and position.
+                    db.session.execute(
+                        db.text(
+                            """
+                            CREATE TABLE IF NOT EXISTS display_playlist (
+                                id INTEGER PRIMARY KEY,
+                                display_id INTEGER NOT NULL,
+                                playlist_id INTEGER NOT NULL,
+                                position INTEGER NOT NULL DEFAULT 1,
+                                created_at DATETIME NOT NULL,
+                                UNIQUE(display_id, playlist_id),
+                                FOREIGN KEY(display_id) REFERENCES display (id),
+                                FOREIGN KEY(playlist_id) REFERENCES playlist (id)
+                            )
+                            """
+                        )
+                    )
+                    db.session.commit()
+                else:
+                    # Best-effort column additions for older/newer variants.
+                    if "position" not in dp_cols:
+                        db.session.execute(
+                            db.text("ALTER TABLE display_playlist ADD COLUMN position INTEGER NOT NULL DEFAULT 1")
+                        )
+                        db.session.commit()
+                    if "created_at" not in dp_cols:
+                        # Use CURRENT_TIMESTAMP as a reasonable default for existing rows.
+                        db.session.execute(
+                            db.text(
+                                "ALTER TABLE display_playlist ADD COLUMN created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP"
+                            )
+                        )
+                        db.session.commit()
+                    if "id" not in dp_cols:
+                        # Cannot add PRIMARY KEY via ALTER TABLE; keep nullable for compatibility.
+                        db.session.execute(db.text("ALTER TABLE display_playlist ADD COLUMN id INTEGER"))
+                        db.session.commit()
+                    # Ensure uniqueness index exists (no-op if already present)
+                    db.session.execute(
+                        db.text(
+                            "CREATE UNIQUE INDEX IF NOT EXISTS uq_display_playlist_display_playlist ON display_playlist (display_id, playlist_id)"
+                        )
+                    )
+                    db.session.commit()
         except Exception:
             db.session.rollback()