Change permalink when page category selected in admin

I decided on a different approach. Keep the default permalinks in admin, then add a rewrite to allow /course:

add_rewrite_rule('^course/([^/]*)/?', 'index.php?event=$matches[1]', 'top'); // single event

Then I can update my theme templates with the course/ urls where needed.

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)