Author Specific URL’s in WordPress

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here you go:

add_action('init', 'wp_new_flush_rewrite_rules'); //Run this action only ONCE if not you are looking at 2 extra db queries on every page load so dont forget to comment it out
function wp_new_flush_rewrite_rules() {
    global $wp_rewrite; 
    $wp_rewrite->flush_rules();
}

add_action('generate_rewrite_rules', 'new_rewrite_rules');
function new_rewrite_rules( $wp_rewrite ) {

    $post_type="post";

    $new_rules = array(

        'writer/(.+?)/page/?([0-9]{1,})/?$' => 'index.php?post_type=".$post_type."&meta_key=writer&meta_value=".$wp_rewrite->preg_index(1)."&paged='.$wp_rewrite->preg_index(2),
        'writer/(.+?)/?$' => 'index.php?post_type=".$post_type."&meta_key=writer&meta_value=".$wp_rewrite->preg_index(1),

    );

    $wp_rewrite->rules = $new_rules + $wp_rewrite->rules;   
    return $wp_rewrite;

}

add_filter("query_vars', 'add_query_vars');
function add_query_vars( $vars ){
    $vars[] = 'meta_key';
    $vars[] = 'meta_value';
    return $vars;
}

add_action('template_redirect', 'template_redirect_intercept');
function template_redirect_intercept(){

    global $wp_query;

    if ( $wp_query->get('writer') && file_exists( TEMPLATEPATH . '/author.php' ) ){
        $wp_query->is_404 = ''; $wp_query->is_archive = 1; $wp_query->is_post_type_archive = 1; // This is to prevent 404 errors on page 2,3,4 if posts for that page dont exist.
        include( TEMPLATEPATH . '/author.php' );
        exit;
    }

}

it is written to search for the ‘writer’ meta value of a post and display the author.php template.

the url will look like mysite.com/writer/WRITERNAME/
pagination also works so mysite.com/writer/WRITERNAME/page/2/ will work without an issue.

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