get_field() empty on save_post when bulk editing

• jbonlinea

• December 12, 2021 at 7:08 am

Hi guys

I’ve written a small function that is trigged when saving a a cpt ‘myCPT’

• I first clears the post term of a custom taxnomomy ‘custom-tax’
• then it get the value of an acf relationship field ‘myRelationshipField’
• loop throug the results to
  • get the value of a meta field ‘shadow_term_id’ of the related post ; it actually get the id of a term of my custom-tax
  • and use this value to add this term to the original post

it works nicely in the post editor,

but if Iedit my post from the post list, with the bulk editor, changing post statut for instance, then it delete the terms, and do not re-add them. The relationship is kept, and I can “restore” the terms by saving the post from the editor again.

Do you guys have any clues what’s going on, and how to fix that ?

Thank’s in advance

add_filter( 'save_post', 'change_post_data_before_save', 10, 2 );
//add_filter( 'acf/save_post', 'change_post_data_before_save' ); // nothing happens
function change_post_data_before_save( $post_id, $post ) {	

    if ( 'myCPT' == $post->post_type ) {
      wp_set_object_terms( $post_id , null, 'custom-tax', false );    

      $related_post = get_field('myRelationshipField');

      if($related_post) {

         foreach( $related_post as $related) {
     	      $related_id = $related-> ID;
          	$related_shadow_term_id = (int) get_post_meta( $related_id, 'shadow_term_id', true );
	     		wp_set_object_terms( $post_id , $related_shadow_term_id, 'custom-tax', true );

         };
      };
    };
};

• John Huebner

• April 15, 2022 at 1:42 pm

In this context you must supply the post ID to get the field from

$related_post = get_field('myRelationshipField', $post_id);

• jbonlinea

• April 18, 2022 at 8:42 am

Hi

Spot-on !

This now seems obvious, thanks

In the meantime, I had found an other way to restrict the execution of my fuction on the post edit page by nesting it into this

global $pagenow;
if (( $pagenow == 'post.php' )) { 
  //do your stuff
}