I am trying to create an author specific date page. When a users is on my author page, they see the date archive (listed by month) in the sidebar. If the user selects the month, it goes to the date page. I have added the author ID in the URL and parse the URL to get the author ID on the date page. I can display the author ID ($curauth), but my add_filter is not working.
I have placed the following directly above the Loop on my Date page.