function FileWidget::processMultiple
Same name in other branches
- 8.9.x core/modules/file/src/Plugin/Field/FieldWidget/FileWidget.php \Drupal\file\Plugin\Field\FieldWidget\FileWidget::processMultiple()
- 10 core/modules/file/src/Plugin/Field/FieldWidget/FileWidget.php \Drupal\file\Plugin\Field\FieldWidget\FileWidget::processMultiple()
- 11.x core/modules/file/src/Plugin/Field/FieldWidget/FileWidget.php \Drupal\file\Plugin\Field\FieldWidget\FileWidget::processMultiple()
Form API callback: Processes a group of file_generic field elements.
Adds the weight field to each row so it can be ordered and adds a new Ajax wrapper around the entire group so it can be replaced all at once.
This method on is assigned as a #process callback in formMultipleElements() method.
File
-
core/
modules/ file/ src/ Plugin/ Field/ FieldWidget/ FileWidget.php, line 464
Class
- FileWidget
- Plugin implementation of the 'file_generic' widget.
Namespace
Drupal\file\Plugin\Field\FieldWidgetCode
public static function processMultiple($element, FormStateInterface $form_state, $form) {
$element_children = Element::children($element, TRUE);
$count = count($element_children);
// Count the number of already uploaded files, in order to display new
// items in \Drupal\file\Element\ManagedFile::uploadAjaxCallback().
if (!$form_state->isRebuilding()) {
$count_items_before = 0;
foreach ($element_children as $children) {
if (!empty($element[$children]['#default_value']['fids'])) {
$count_items_before++;
}
}
$form_state->set('file_upload_delta_initial', $count_items_before);
}
foreach ($element_children as $delta => $key) {
if ($key != $element['#file_upload_delta']) {
$description = static::getDescriptionFromElement($element[$key]);
$element[$key]['_weight'] = [
'#type' => 'weight',
'#title' => $description ? new TranslatableMarkup('Weight for @title', [
'@title' => $description,
]) : new TranslatableMarkup('Weight for new file'),
'#title_display' => 'invisible',
'#delta' => $count,
'#default_value' => $delta,
];
}
else {
// The title needs to be assigned to the upload field so that validation
// errors include the correct widget label.
$element[$key]['#title'] = $element['#title'];
$element[$key]['_weight'] = [
'#type' => 'hidden',
'#default_value' => $delta,
];
}
}
// Add a new wrapper around all the elements for Ajax replacement.
$element['#prefix'] = '<div id="' . $element['#id'] . '-ajax-wrapper">';
$element['#suffix'] = '</div>';
return $element;
}
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