wordpress create post from image upload - php

Question

I have some code to create posts from uploading images into the media library, which is working fine:
add_action('add_attachment', 'create_post');
function create_post( $attach_ID ) {
$attachment = get_post( $attach_ID );
$my_post_data = array(
'post_title' => $attachment->post_title,
'post_type' => 'post',
'post_category' => array('0'),
'post_status' => 'publish'
);
$post_id = wp_insert_post( $my_post_data );
// attach media to post
wp_update_post( array(
'ID' => $attach_ID,
'post_parent' => $post_id,
) );
set_post_thumbnail( $post_id, $attach_ID );
return $attach_ID;
}
The catch is that I don't want it to create new posts from an image upload if I'm manually creating a post. In other words, I want the code to create new posts only if I upload images directly into the media library, not when I added images manually into a new post.
Any help is greatly appreciated!

Answer 1

Maybe there is a better way, but you could use the global variable $pagenow.
global $pagenow;
if($pagenow == 'upload.php'){
//your code here
}

Answer 2

I got some help from a developer on Wizpert. He used the below code to make it work
add_action('add_attachment', 'create_post');
function create_post( $attach_ID ) {
$attachment = get_post( $attach_ID );
if(!$attachment->post_parent)
{
$my_post_data = array(
'post_title' => $attachment->post_title,
'post_type' => 'post',
'post_category' => array('0'),
'post_status' => 'publish'
);
$post_id = wp_insert_post( $my_post_data );
// attach media to post
wp_update_post( array(
'ID' => $attach_ID,
'post_parent' => $post_id,
) );
set_post_thumbnail( $post_id, $attach_ID );
return $attach_ID;
}
}