Retrieves the value of the meta before publishing

[Title translated to English]

Hello!

I’m trying to automatically change the title of the articles for a custom post type based on a custom field that contains an ID. With the ID, I get the title to assign to the post. I found the best method for this to work. Unfortunately, I have to update twice for the title changes. It is obvious, when publishing the article, the custom field is not yet registered in the database. I should be able to recover the information before the first publication. Is it possible?

Here is my code:

function alter_title($t) {
  if ('tests' == get_post_type()) {
	  foreach(get_field('fiche') as $post_object):
	   global $title;
	   $title = get_the_title($post_object->ID);
	   endforeach;
  	return $title;
  }

}

if ('tests' == get_post_type()) {
add_filter('pre_post_title','alter_title');
add_filter('pre_post_name','alter_title');
}

[In future please wrap your code with backticks not blockquotes]

Thank You