CREATE TRIGGER ai_hub_location_updates_1
AFTER INSERT ON
    hub_location_updates
FOR EACH ROW
BEGIN

    SELECT debug(
        'TRIGGER ai_hub_location_updates_1',
        NEW.id,
        NEW.update_id,
        NEW.hub_location_id,
        NEW.location
    );

    UPDATE
        updates
    SET
        ucount = ucount + 1
    WHERE
        id = NEW.update_id
    ;

    UPDATE
        updates_pending
    SET
        terms = terms || (
            SELECT
                'hub_location_update:' || x'0A'
                || '  hub_location_uuid:' || COALESCE(topics.uuid, '') || x'0A'
                || '  location:' || COALESCE(NEW.location, '') || x'0A'
            FROM
                topics
            WHERE
                topics.id = NEW.hub_location_id
        )
    WHERE
        update_id = NEW.update_id
    ;

    INSERT OR IGNORE INTO
        hub_locations_tomerge(hub_location_id)
    VALUES
        (NEW.hub_location_id)
    ;

    INSERT INTO
        hub_related_updates(
            update_id,
            hub_id
        )
    SELECT
        NEW.update_id,
        hl.hub_id
    FROM
        hub_locations hl
    WHERE
        id = NEW.hub_location_id
    ;

    UPDATE
        hub_locations_tomerge
    SET
        location = location + (NEW.location IS NOT NULL)
    WHERE
        hub_location_id = NEW.hub_location_id
    ;
END;