Display posts on parent post if author coincides

Question

On a website, I have 4 article authors. I want to display each author's posts on his own custom post page.

I have come up with this piece of code:

<ul class="author-posts">
  <?php $catquery = new WP_Query( 'cat=7&posts_per_page=30&order=DESC&author_name=john' );
    while($catquery->have_posts()) : $catquery->the_post();
   ?>
    <li class="author-post"><?php the_content();?></li>
<?php endwhile;?>

The problem with the code above is that only one author's name is john.

So the WP_Query does not display terry's posts.

If every parent page (actually, a custom post) has an author, how do I store the parent page's author in a variable so that I can show on it only the posts belonging to the current author?

Thank you!

Answer 1

I found it (easy one):

In functions.php:

// Allow author for custom post
function allowShowAuthor()
{
  add_post_type_support( 'cust_post-type', 'author' );
}

add_action('init','allowShowAuthor');

In the content template:

<ul class="author-posts">
 <?php
        $current_page_author = get_the_author();
        $catquery = new WP_Query( 'cat=7&posts_per_page=30&order=DESC&author_name=' . $current_page_author );
    while($catquery->have_posts()) : $catquery->the_post();
   ?>
    <li class="author-post"><?php the_content();?></li>
<?php endwhile;?>