• John Huebner

• June 13, 2016 at 8:15 am

So, you have a couple of choices, the first is to construct an array with all of the fields that you want to check and update. This array will need to look something like this so that you have field names and keys, you will need the field keys for updating the field.

$fields = array(
  'field_name' => 'field_key',
  'field_name' => 'field_key',
  'field_name' => 'field_key',
  'field_name' => 'field_key',
  'field_name' => 'field_key'
)

then you can loop through this array and test for values, get values and update values.

or you can do something like this, see comments about what’s going on

/* Load Defaults from options page and user page*/
function update_save($post_id) {
  // Get Post Type From POST ID
  $post_type = get_post_type($post_id); 
  
  // you should check the post type is your post type and return if not
  if ($post_type != 'your-post-type') {
    return;
  }
  
  // Check to see if draft or pending
  if (get_post_status ( $post_id ) == 'draft' || get_post_status ( $post_id ) == 'pending') {
  
    $post_author_id = 'user_'.get_post_field( 'post_author', $post_id );
    
    // acf_get_fields() is an internal ACF funciton
    // that will return all fields in a field group
    // repeater fields will be nested in $field['sub_fields']
    // this is the only way to get a list of all of the fields
    // if some of them do not have values
    $group_key = 'group_57007d5b46c49';
    $fields = acf_get_fields($group_key);
    
    foreach ($fields as $field) {
      $replace = get_field($field['name'], $post_id);
      if (!empty($relace)) {
        // field has a value
        // go to the next field
        continue;
      }
      $default_value = get_field($field['name'], $post_author_id);
      if (empty($default_value)) {
        $default_value = get_field($field['name'], 'options');  
      }
      update_field($field['key'], $default_value);
    }
  } else {
  }
}
add_action('acf/save_post', 'update_save', 50); //Trigger after every save containing ACF fields

let me know if you have any questions.