Conditional URL Rewrites in WordPress

Question

I'm hosting an event and using WordPress to manage the site. We have a separate table (not WP user table) of attendees and I'd like for each of them to have a page on our site:

example.com/user1, example.com/user2, etc.

I've been reading up about WP_Rewrite but am a bit confused about how to conditionally redirect if the user exists, otherwise go about the normal flow.

Any help in achieving this would be much appreciated, thank you!

Edit:

There is a single one-off page that I'm trying to forward to. Right now, it's accessed with:

example.com/user?username=user1

Answer 1

If i understood your problem, you're going to create a page for each user, so in the permalink structure add tag %postname%, and maybe install no-category base plugin.

Check if the .htaccess it's created with the configuration that wp write for that structure, if it's not you can just copy and paste.