function webform_validate_date in Webform 7.3

Same name and namespace in other branches

1. 5.2 components/date.inc \webform_validate_date()
2. 5 components/date.inc \webform_validate_date()
3. 6.3 components/date.inc \webform_validate_date()
4. 6.2 components/date.inc \webform_validate_date()
5. 7.4 components/date.inc \webform_validate_date()

Element validation for Webform date fields.

1 string reference to 'webform_validate_date'

_webform_render_date in components/date.inc

Implements _webform_render_component().

File

components/date.inc, line 284

Webform module date component.

Code

function webform_validate_date($element, $form_state) {

  // Check if the user filled the required fields.
  foreach (array(
    'day',
    'month',
    'year',
  ) as $field_type) {
    if (!is_numeric($element[$field_type]['#value']) && $element['#required']) {
      form_error($element, t('!name field is required.', array(
        '!name' => $element['#title'],
      )));
      return;
    }
  }
  if ($element['month']['#value'] !== '' || $element['day']['#value'] !== '' || $element['year']['#value'] !== '') {

    // Check for a valid date.
    if (!checkdate((int) $element['month']['#value'], (int) $element['day']['#value'], (int) $element['year']['#value'])) {
      form_error($element, t('Entered !name is not a valid date.', array(
        '!name' => $element['#title'],
      )));
      return;
    }

    // Create a timestamp of the entered value for comparison.
    $timestamp = strtotime($element['year']['#value'] . '-' . $element['month']['#value'] . '-' . $element['day']['#value']);
    $format = webform_date_format('short');

    // Flip start and end if needed.
    $date1 = strtotime($element['#start_date']);
    $date2 = strtotime($element['#end_date']);
    if ($date1 !== FALSE && $date2 !== FALSE) {
      $start_date = $date1 < $date2 ? $date1 : $date2;
      $end_date = $date1 > $date2 ? $date1 : $date2;
    }
    else {
      $start_date = $date1;
      $end_date = $date2;
    }

    // Check that the date is after the start date.
    if ($start_date !== FALSE) {
      if ($timestamp < $start_date) {
        form_error($element, t('The entered date must be @start_date or later.', array(
          '@start_date' => date($format, $start_date),
        )));
      }
    }

    // Check that the date is before the end date.
    if ($end_date !== FALSE) {
      if ($timestamp > $end_date) {
        form_error($element, t('The entered date must be @end_date or earlier.', array(
          '@end_date' => date($format, $end_date),
        )));
      }
    }
  }
}