/**
* {@inheritdoc}
*/
public function extractFormValues(FieldItemListInterface $items, array $form, FormStateInterface $form_state)
{
$field_name = $this->fieldDefinition->getName();
// Extract the values from $form_state->getValues().
$path = array_merge($form['#parents'], array($field_name));
$key_exists = NULL;
$values = NestedArray::getValue($form_state->getValues(), $path, $key_exists);
if ($key_exists) {
// Account for drag-and-drop reordering if needed.
if (!$this->handlesMultipleValues()) {
// Remove the 'value' of the 'add more' button.
unset($values['add_more']);
// The original delta, before drag-and-drop reordering, is needed to
// route errors to the correct form element.
foreach ($values as $delta => &$value) {
$value['_original_delta'] = $delta;
}
usort($values, function ($a, $b) {
return SortArray::sortByKeyInt($a, $b, '_weight');
});
}
// Let the widget massage the submitted values.
foreach ($values as $delta => &$value) {
if (!empty($value['value']) && empty($value['fids'])) {
// ready to save the file
$provider_manager = \Drupal::service('video.provider_manager');
$allowed_providers = $this->getSetting('allowed_providers');
$enabled_providers = $provider_manager->loadDefinitionsFromOptionList($allowed_providers);
if ($provider_matches = $provider_manager->loadApplicableDefinitionMatches($enabled_providers, $value['value'])) {
$definition = $provider_matches['definition'];
$matches = $provider_matches['matches'];
$uri = $definition['stream_wrapper'] . '://' . $matches['id'];
$storage = \Drupal::entityManager()->getStorage('file');
$results = $storage->getQuery()->condition('uri', $uri)->execute();
if (!(count($results) > 0)) {
$user = \Drupal::currentUser();
$file = File::Create(['uri' => $uri, 'filemime' => $definition['mimetype'], 'filesize' => 1, 'uid' => $user->id()]);
$file->save();
unset($values[$delta]);
$values[] = array('fids' => array($file->id()), 'data' => serialize($matches));
} else {
unset($values[$delta]);
$values[] = array('fids' => array(reset($results)), 'data' => serialize($matches));
}
}
}
}
$values = $this->massageFormValues($values, $form, $form_state);
// Assign the values and remove the empty ones.
$items->setValue($values);
$items->filterEmptyItems();
// Put delta mapping in $form_state, so that flagErrors() can use it.
$field_state = static::getWidgetState($form['#parents'], $field_name, $form_state);
foreach ($items as $delta => $item) {
$field_state['original_deltas'][$delta] = isset($item->_original_delta) ? $item->_original_delta : $delta;
unset($item->_original_delta, $item->_weight);
}
static::setWidgetState($form['#parents'], $field_name, $form_state, $field_state);
}
}
