function _exif_field_widget_image_field_validate in Exif 7

implementation of #element_validate FAPI Hook

1 string reference to '_exif_field_widget_image_field_validate'

exif_field_widget_settings_form in ./exif.module

Implementation of hook_widget_settings().

File

./exif.module, line 662

Code

function _exif_field_widget_image_field_validate($element, &$form_state) {
  $image_field_settings = $form_state['values']['instance']['widget']['settings']['image_field'];
  if (empty($image_field_settings)) {
    form_error($element, t('you must choose at least one image field to retrieve metadata.'));
  }
}