Reply To: Validation for Date Range

• John Huebner

• April 26, 2016 at 11:04 pm

Yes, it is

add_filter('acf/validate_value/name=end_date', 'validate_end_date_func', 10, 4);
function validate_end_date_func($valid, $value, $field, $input) {
  if (!$valid) {
    return $valid;
  }
  $repeater_key = 'field_56faad2a333ab';
  $start_key = 'field_56fab49fd51ce';
  $end_key = 'field_56fab4d1d51d0';
  // extract row from input
  $row = preg_replace('/^\s*acf\[[^\]]+\]\[([^\]]+)\].*$/', '\1', $input);
  $start_value = $_POST['acf'][$repeater_key][$row][$start_key];
  $end_value = $value;
  if ($end_value <= $start_value) {
   $valid = 'end value must be greater than start value';
  }
  return $valid
}