Author archive custom posts only?

Question

I am using the function below to try and display custom post type 'direct_blog posts only. However for some reason it is also displaying standard posts and I don't know why?

Your help is much appreciated. Thanks in advance.

   function blogs_custom_author_archives_posts_per_page($query) {

       if (!is_admin() && $query->is_main_query()) {
           if ($query->is_author()) {
                $query->set('post_type', array('direct_blog'));
                $query->set('posts_per_page', 5);
            }
        }
    }
    add_action('pre_get_posts', 'blogs_custom_author_archives_posts_per_page');

Answer 1

You want to only query posts from the post-type direct_blog, but NOT the normal post type?

Than you simply need to remove post from this line:

$query->set('post_type', array('post', 'direct_blog'));

---

Update:

I just tested the following code.

First you need to revisit your function, as you have some errors in it.
In the code in your question, you are missing a closing }!
Than you are also using posts_per_page, but you are missing the "s", in your function it is post_per_page.

So I believe you want something like this:

function my_pre_get_posts( $query ) {

    if (!is_admin() && $query->is_main_query()) {

        if ($query->is_author()) {

            $query->set( 'post_type', array( 'my_type' ));
            $query->set( 'posts_per_page', 5 );

        }
    }
}
add_action( 'pre_get_posts', 'my_pre_get_posts' );

As I said above, this code is working in my WP testsite, Iam not seeing normal posts, just posts from my_type in my author archiv template. So try to change my_type to your post type (make sure that direct_blog is the right slug)