Reply To: Dont save post if sum of all repeater-fields are more than 100?

• John Huebner

• May 28, 2021 at 3:58 am

You need to and an acf/validate_value filter to the sub field, use the field key variant.

// field_XXXXXXX == your sub field key
add_filter('acf/validate_value/key=field_XXXXXXX', 'validate_repeater_sum', 20, 4);
function validate_repeater_sum($valid, $value, $field, $input_name) {
  // field_YYYYYYY == your repeater field key
  $repeater = $_POST['acf']['field_YYYYYYY'];
  $sum = 0;
  foreach ($repeater as $row) {
    $sum += intval($row['field_XXXXXXX']);
  }
  if ($sum > 100) {
    $valid = 'The sum of all '.$field['label'].' fields must not exceed 100';
  }
  return $valid;
}