app = __import__("superset.app", fromlist=["create_app"]).create_app()

with app.app_context():
    from superset.extensions import db
    from superset.models.slice import Slice
    charts = db.session.query(Slice).all()
    for sl in charts:
        try:
            sl.query_context = sl.get_query_context()
            db.session.add(sl)
            print("saved", sl.id, (sl.slice_name or "")[:50])
        except Exception as e:
            print("err", sl.id, e)
    db.session.commit()
    print("committed", len(charts), "charts")