function _image_field_resolution_validate in Drupal 7

Element validate function for resolution fields.

1 string reference to '_image_field_resolution_validate'

image_field_instance_settings_form in modules/image/image.field.inc

Implements hook_field_instance_settings_form().

File

modules/image/image.field.inc, line 171

Implement an image field, based on the file module's file field.

Code

function _image_field_resolution_validate($element, &$form_state) {
  if (!empty($element['x']['#value']) || !empty($element['y']['#value'])) {
    foreach (array(
      'x',
      'y',
    ) as $dimension) {
      $value = $element[$dimension]['#value'];
      if (!is_numeric($value)) {
        form_error($element[$dimension], t('Height and width values must be numeric.'));
        return;
      }
      if (intval($value) == 0) {
        form_error($element[$dimension], t('Both a height and width value must be specified in the !name field.', array(
          '!name' => $element['#title'],
        )));
        return;
      }
    }
    form_set_value($element, intval($element['x']['#value']) . 'x' . intval($element['y']['#value']), $form_state);
  }
  else {
    form_set_value($element, '', $form_state);
  }
}