这个WP_Query Object 不支持通过检索帖子author_meta 因此pre_get_posts hook. 下一个最好的办法是快速WP_User_Query 并通过特定的author_meta 然后将我们的查询限制为仅从这些作者那里获取帖子。下面是它的样子：

/**
 * Modify Queries 
 *
 * @param WP_Query Object $query
 */
function theme_pgp( $query ) {

    // If we\'re on admin side, return
    if( is_admin() ) {
        return;
    }

    // Only apply to main queries
    if( $query->is_main_query() ) {

        // Get all users with a Company field
        $users = new WP_User_Query( array(
            \'meta_key\'      => \'company\',
            \'meta_value\'    => \'company1\',
            \'fields\'        => \'ID\',
        ) );
        $authors = $users->get_results();

        if( ! empty( $authors ) ) {
            $query->set( \'author__in\', $authors );
        }
    }
}
add_action( \'pre_get_posts\', \'theme_pgp\' );