function calendar_part_is_valid in Calendar 7

Same name and namespace in other branches

1. 5.2 calendar.module \calendar_part_is_valid()
2. 5 calendar.module \calendar_part_is_valid()
3. 6.2 calendar.module \calendar_part_is_valid()
4. 7.2 calendar.module \calendar_part_is_valid()

A function to test the validity of various date parts

File

./calendar.module, line 118

Adds calendar filtering and displays to Views.

Code

function calendar_part_is_valid($value, $type) {
  if (!preg_match('/^[0-9]*$/', $value)) {
    return FALSE;
  }
  $value = intval($value);
  if ($value <= 0) {
    return FALSE;
  }
  switch ($type) {
    case 'year':
      if ($value < DATE_MIN_YEAR) {
        return FALSE;
      }
      break;
    case 'month':
      if ($value < 0 || $value > 12) {
        return FALSE;
      }
      break;
    case 'day':
      if ($value < 0 || $value > 31) {
        return FALSE;
      }
      break;
    case 'week':
      if ($value < 0 || $value > 53) {
        return FALSE;
      }
  }
  return TRUE;
}