Wordpress Get author Posts - php

Question

Wonder if someone can help; its seems a bit complicated to me;
Baisically I've added this function in my wordpress site, so people can change the author's name;
add_filter( 'the_author', 'guest_author_name' );
add_filter( 'get_the_author_display_name', 'guest_author_name' );
function guest_author_name( $name ) {
global $post;
$author = get_post_meta( $post->ID, 'author_name', true );
if ( $author )
$name = $author;
return $name;
}
But now I want to add some code to show a list of posts from the current posts author but its returning the original author not the author that the top function changed it to; below is the function I'm using to do this, is this possible to change?
function get_related_author_posts() {
global $authordata, $post;
$authors_posts = get_posts( array( 'author' => $author_name->ID, 'post__not_in' => array( $post->ID ), 'posts_per_page' => 3 ) );
$output = '<div class="morepost"><h3>More posts from this author</h3>';
foreach ( $authors_posts as $authors_post ) {
$output .= '<li>' . apply_filters( 'the_title', $authors_post->post_title, $authors_post->ID ) . '</li>';
}
$output .= '</ul></div>';
return $output;
}
then this;
<?php echo get_related_author_posts(); ?>
Know its a bit complicated, if anyone can help that be great
D
This is what Ive come up with so far but could someone show me where I'm going wrong with this code
<?php $author = get_post_meta( $post->ID, 'author_name', true ); $args
= array(
'meta_query' => array (
array(
'key' => 'author_name',
'value' => $author
)
), 'post__not_in' => array( $post->ID ), 'posts_per_page' => 3 ); ?> <?php if ( $wp_query->have_posts() ) : ?> <?php while ( $wp_query->have_posts() ) : $wp_query->the_post(); ?> DO something
<?php endwhile; ?> NOT POSTS <?php endif; ?>

Answer 1

You need to get post based on the author meta value,
So get the virtual author name first for that post,
$author = get_post_meta( $post->ID, 'author_name', true );
Now get all posts based on this value,
$args = array(
'meta_query' => array(
array(
'key' => 'author_name',
'value' => $author
)
),
'post__not_in' => array( $post->ID )
'posts_per_page' => 3
);
$posts = get_posts($args);