refs#26028 fix files that create duplicates

modules/edw_document/src/Plugin/Field/FieldWidget/FileMultiLanguageWidget.php

@@ -98,14 +98,15 @@ public static function create(ContainerInterface $container, array $configuratio
  protected function formMultipleElements(FieldItemListInterface $items, array &$form, FormStateInterface $form_state) {
  $fieldName = $this->fieldDefinition->getName();
  $languages = $this->languageManager->getLanguages();
+ $selectedValues = $form_state->getValue($fieldName);
  $currentLangcode = $this->languageManager->getCurrentLanguage()->getId();
-
  /** @var \Drupal\Core\Entity\ContentEntityBase $entity */
  $entity = $items->getEntity();
  $elements = [];
  $elements['#type'] = 'details';
  $elements['#open'] = TRUE;
  $elements['#title'] = $this->fieldDefinition->getLabel();
+ $elements['#element_validate'] = [[$this, 'validate']];
 
  $elements['languages'] = [
  '#type' => 'horizontal_tabs',
@@ -126,17 +127,49 @@ protected function formMultipleElements(FieldItemListInterface $items, array &$f
  $this->singleFieldIsRequired = $this->fieldDefinition->isRequired() && $language->isDefault();
 
  if ($entity->hasTranslation($language->getId())) {
- $translatedField = $entity->getTranslation($language->getId())->get($fieldName);
+ $translatedField = $entity->getTranslation($language->getId())
+ ->get($fieldName);
  $elements['languages'][$language->getId()]['data'] = parent::formMultipleElements($translatedField, $form, $form_state);
+ $this->fixWidgetFileItems($elements, $selectedValues, $language->getId());
  continue;
  }
 
  $elements['languages'][$language->getId()]['data'] = parent::formMultipleElements($this->getEmptyField($items), $form, $form_state);
+ $this->fixWidgetFileItems($elements, $selectedValues, $language->getId());
  }
 
+
  return $elements;
  }
 
+ public function fixWidgetFileItems(array &$element, ?array $selectedValues, $langCode) {
+ if (empty($selectedValues) || array_key_exists($langCode, $selectedValues['languages'])) {
+ return;
+ }
+
+ foreach ($element['languages'][$langCode]['data'] as $key => $item) {
+ if (!is_array($item) || !isset($item['#default_value']['fids'])) {
+ continue;
+ }
+
+ $foundFile = FALSE;
+ foreach ($selectedValues['languages'] as $languageFile) {
+ if ($foundFile) {
+ break;
+ }
+
+ foreach ($languageFile['data'] as $selectedItem) {
+ $commonFids = array_intersect($selectedItem['fids'], $item['#default_value']['fids']);
+ if (!empty($commonFids)) {
+ unset($element['languages'][$langCode]['data'][$key]);
+ $foundFile = TRUE;
+ break;
+ }
+ }
+ }
+ }
+ }
+
  /**
  * {@inheritdoc}
  *
@@ -185,7 +218,8 @@ public function extractFormValues(FieldItemListInterface $items, array $form, Fo
  $entity->getTranslation($langcode) :
  $entity->addTranslation($langcode, $values);
 
- $translationValues = array_column($translation->get($field_name)->getValue(), 'target_id');
+ $translationValues = array_column($translation->get($field_name)
+ ->getValue(), 'target_id');
  if (in_array($item['target_id'], $translationValues)) {
  continue;
  }
@@ -282,6 +316,66 @@ public function extractFormValuesMultiLanguage(FieldItemListInterface $items, ar
  }
  }
 
+ /**
+ * Validates if the same file is added on different languages.
+ *
+ * @param array $element
+ * The widget form element.
+ * @param \Drupal\Core\Form\FormStateInterface $formState
+ * The form state.
+ *
+ * @throws \Drupal\Component\Plugin\Exception\InvalidPluginDefinitionException
+ * @throws \Drupal\Component\Plugin\Exception\PluginNotFoundException
+ */
+ public function validate(array $element, FormStateInterface $formState) {
+ $fileStorage = $this->entityTypeManager->getStorage('file');
+ $value = $formState->getValue($this->fieldDefinition->getName());
+ $userInput = $formState->getUserInput();
+ // Check if there is not an AJAX request.
+ if (!$formState->isSubmitted() || !empty($userInput['_drupal_ajax'])) {
+ return;
+ }
+
+ if (empty($value) || !isset($value['languages'])) {
+ return;
+ }
+
+ $fileLangMap = [];
+ foreach ($value['languages'] as $langCode => $items) {
+ if (!isset($items['data'])) {
+ continue;
+ }
+
+ foreach ($items['data'] as $item) {
+ foreach ($item['fids'] as $fid) {
+ /** @var \Drupal\file\Entity\File $file */
+ $file = $fileStorage->load($fid);
+ $sha = hash_file('sha256', $file->getFileUri());
+ if (!isset($fileLangMap[$sha])) {
+ $fileLangMap[$sha] = [$langCode];
+ continue;
+ }
+
+ if (!in_array($langCode, $fileLangMap[$sha])) {
+ $languages = [
+ $this->languageManager->getLanguage($fileLangMap[$sha][0])
+ ->getName(),
+ ];
+ $languages[] = $this->languageManager->getLanguage($langCode)
+ ->getName();
+
+ $formState->setError($element, $this->t('Same file, %fileName, appears multiple times for different languages: %languages.', [
+ '%fileName' => $file->getFilename(),
+ '%languages' => implode(', ', $languages),
+ ]));
+ return;
+ }
+ }
+ }
+ }
+
+ }
+
  /**
  * {@inheritdoc}
  */