Reply To: Create/update post title from ACF fields

• boriskamp1991

• January 29, 2015 at 11:01 pm

Elliot! you’re a hero!
Stupid of me not to think about debugging first! You were right on point about that $target_product was not a single, but an array of post objects!
so using this updated variable $review_target_product = $target_product['0']->ID; made my code work!

For anyone interested in the future, this is all the code I used to construct my post titles in my functions.php

//Auto add and update Title field:
  function my_post_title_updater( $post_id ) {

    $my_post = array();
    $my_post['ID'] = $post_id;

    $manufacturer           = get_field('manufacturer');
    $target_product         = get_field('target_product');
    $review_target_product  = $target_product['0']->ID;
    $manufacturer_target    = get_field('manufacturer', $review_target_product);

    if ( get_post_type() == 'manufacturer' ) {
      $my_post['post_title'] = get_field('manufacturer_name');
    } elseif ( get_post_type() == 'products' ) {
      $my_post['post_title'] = get_field('kitName') . ' (' . get_field('manufacturer_name', $manufacturer->ID) . ' ' . get_field('kitNumber') . ')';
    } elseif ( get_post_type() == 'reviews' ) {
       $my_post['post_title'] = get_field('kitName', $review_target_product) . ' (' . get_field('manufacturer_name', $manufacturer_target) . ' ' . get_field('kitNumber', $review_target_product) . ')';
    }

    // Update the post into the database
    wp_update_post( $my_post );

  }
   
  // run after ACF saves the $_POST['fields'] data
  add_action('acf/save_post', 'my_post_title_updater', 20);