public static function ImageItem::validateDefaultImageForm in Drupal 8

Same name and namespace in other branches

1. 9 core/modules/image/src/Plugin/Field/FieldType/ImageItem.php \Drupal\image\Plugin\Field\FieldType\ImageItem::validateDefaultImageForm()

Validates the managed_file element for the default Image form.

This function ensures the fid is a scalar value and not an array. It is assigned as a #element_validate callback in \Drupal\image\Plugin\Field\FieldType\ImageItem::defaultImageForm().

Parameters

array $element: The form element to process.

\Drupal\Core\Form\FormStateInterface $form_state: The form state.

File

core/modules/image/src/Plugin/Field/FieldType/ImageItem.php, line 478

Class

ImageItem

Plugin implementation of the 'image' field type.

Namespace

Drupal\image\Plugin\Field\FieldType

Code

public static function validateDefaultImageForm(array &$element, FormStateInterface $form_state) {

  // Consolidate the array value of this field to a single FID as #extended
  // for default image is not TRUE and this is a single value.
  if (isset($element['fids']['#value'][0])) {
    $value = $element['fids']['#value'][0];

    // Convert the file ID to a uuid.
    if ($file = \Drupal::entityTypeManager()
      ->getStorage('file')
      ->load($value)) {
      $value = $file
        ->uuid();
    }
  }
  else {
    $value = '';
  }
  $form_state
    ->setValueForElement($element, $value);
}