Reply To: Check a taxonomy radio field in ACF Save Post

• John Huebner

• March 17, 2019 at 2:43 am

Can you give me a link to this other question I answered?

At this point I can only say what I would do.

When adding the taxonomy field in ACF there are settings for saving and loading terms, I would turn both of these on.

function my_acf_save_post_function($post_id) {
  // get the value of the first taxonomy field
  // I am getting it unformulated
  // which means that it's returning an array of term IDs
  // you might do this differently depending on what you want to do
  get_field('other_tax_field', $post_id, false);
  // check this field for whatever condition you are looking for
  if ($condition) {
    // get the value of the field you want to change
    $other_field = get_field('the other field', $post_id, false);
    // append a term ID value to the value
    // if it does not already exist
    if (!in_array($new_term_id, $other_field)) {
      $other_field[] = $new_term_id;
    }
    // update acf field
    // acf will take care or updating terms because of the settings
    update_field('the other field', $other_field, $post_id);
    
  } 
}