function search_api_location_validate_distance in Search API Location 7.2

Helper function for validating a distance input.

1 string reference to 'search_api_location_validate_distance'

search_api_location_page_form_search_api_page_search_form_alter in search_api_location_page/search_api_location_page.module

Implements hook_form_FORM_ID_alter().

File

./search_api_location.module, line 72

Provides location based search functionality for the Search API.

Code

function search_api_location_validate_distance(array $element, array &$form_state) {
  $value = $element['#value'];
  if ($value != '' && !is_numeric($value) || (double) $value < 0) {
    form_error($element, t('%name must be a non-negative number.', array(
      '%name' => $element['#title'],
    )));
  }
}