Reply To: Required field based on input other fields

• k-Dushi

• March 2, 2019 at 2:07 am

Hmmm… Your code gave me errors so I changed it to this but that didn’t work:

add_filter('acf/validate_value/key=field_5c66e017f8359', 'custom_validate_title', 20, 4);
function custom_validate_title($valid, $value, $field, $input) {
  // title is required if other fields has a value
  if (!empty($_POST['acf']['field_5c6d43781bcb1']))
  if (!empty($_POST['acf']['field_5c66e094f835a'])) 
  if (!empty($_POST['acf']['field_5c66e0d4f835b'])) 
  if (!empty($_POST['acf']['field_5c66e130f835c'])) 
  if (!empty($_POST['acf']['field_5c703c1fd5851'])) {
    // the other fields has a value
    // check value of this field;
    if (empty($value)) {
      $valid = 'This field is required because you have added a value to some other field';
    }
  }
  return $valid;
}