重写自定义Wordpress网站的URL

I am trying to rewrite the URL:

/community-videos/?builder=20

to

/community-videos/builder-name

The Builder Name is not stored in the database, so I believe I have to manually set the builder name in the .htaccess, unless I'm mistaken.

I tried the following, but no results:

RewriteEngine On
RewriteCond %{QUERY_STRING} builder=20$
RewriteRule (.*) /community-videos/builder-name? [R=301,L]

I'm a bit lost, so any help is appreciated.

Have you changed your Permalink settings? Using the Custom Structure option you can use a post's slug or some other data to create the URL. It seems like the "Post name" option may be what you're looking for. Log into WordPress and go to Settings > Permalinks. And be sure to remove that stuff from your .htaccess.

See this page for the possible tags you can use to structure your URLs: http://codex.wordpress.org/Using_Permalinks