Profile: Brad Tipper

Problem:
Automatically set post parent with Toolset CRED form using new post relationship

Solution:
You can use new post relationship API function 'toolset_connect_posts' in order to connect two posts in relationship of parent and child in conjunction with the use of cred_save_data hook.

For example:

add_action('cred_save_data','func_custom_post_title',15,2);
function func_custom_post_title($post_id,$form_data) {
    if ($form_data['id']==243) {
         
        toolset_connect_posts('boat-safety-check',$_POST['@boat-safety-check_parent'], $post_id);
    }
}

You can find proposed solution, in this case, with the following reply:
https://toolset.com/forums/topic/automatically-set-post-parent-in-post-form-from-url-parameter/page/2/#post-902786

Relevant Documentation:
=> https://toolset.com/documentation/customizing-sites-using-php/post-relationships-api/#toolset_connect_posts
=> https://toolset.com/documentation/programmer-reference/cred-api/#cred_save_data