Chris@0: <?php
Chris@0: 
Chris@0: namespace Drupal\taxonomy;
Chris@0: 
Chris@0: use Drupal\Core\Entity\ContentEntityForm;
Chris@18: use Drupal\Core\Entity\EntityConstraintViolationListInterface;
Chris@0: use Drupal\Core\Form\FormStateInterface;
Chris@0: 
Chris@0: /**
Chris@0:  * Base for handler for taxonomy term edit forms.
Chris@14:  *
Chris@14:  * @internal
Chris@0:  */
Chris@0: class TermForm extends ContentEntityForm {
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   public function form(array $form, FormStateInterface $form_state) {
Chris@0:     $term = $this->entity;
Chris@18:     $vocab_storage = $this->entityTypeManager->getStorage('taxonomy_vocabulary');
Chris@18:     /** @var \Drupal\taxonomy\TermStorageInterface $taxonomy_storage */
Chris@18:     $taxonomy_storage = $this->entityTypeManager->getStorage('taxonomy_term');
Chris@0:     $vocabulary = $vocab_storage->load($term->bundle());
Chris@0: 
Chris@0:     $parent = array_keys($taxonomy_storage->loadParents($term->id()));
Chris@0:     $form_state->set(['taxonomy', 'parent'], $parent);
Chris@0:     $form_state->set(['taxonomy', 'vocabulary'], $vocabulary);
Chris@0: 
Chris@0:     $form['relations'] = [
Chris@0:       '#type' => 'details',
Chris@0:       '#title' => $this->t('Relations'),
Chris@18:       '#open' => $taxonomy_storage->getVocabularyHierarchyType($vocabulary->id()) == VocabularyInterface::HIERARCHY_MULTIPLE,
Chris@0:       '#weight' => 10,
Chris@0:     ];
Chris@0: 
Chris@0:     // \Drupal\taxonomy\TermStorageInterface::loadTree() and
Chris@0:     // \Drupal\taxonomy\TermStorageInterface::loadParents() may contain large
Chris@0:     // numbers of items so we check for taxonomy.settings:override_selector
Chris@0:     // before loading the full vocabulary. Contrib modules can then intercept
Chris@0:     // before hook_form_alter to provide scalable alternatives.
Chris@0:     if (!$this->config('taxonomy.settings')->get('override_selector')) {
Chris@14:       $exclude = [];
Chris@14:       if (!$term->isNew()) {
Chris@14:         $parent = array_keys($taxonomy_storage->loadParents($term->id()));
Chris@14:         $children = $taxonomy_storage->loadTree($vocabulary->id(), $term->id());
Chris@0: 
Chris@14:         // A term can't be the child of itself, nor of its children.
Chris@14:         foreach ($children as $child) {
Chris@14:           $exclude[] = $child->tid;
Chris@14:         }
Chris@14:         $exclude[] = $term->id();
Chris@0:       }
Chris@0: 
Chris@0:       $tree = $taxonomy_storage->loadTree($vocabulary->id());
Chris@0:       $options = ['<' . $this->t('root') . '>'];
Chris@0:       if (empty($parent)) {
Chris@0:         $parent = [0];
Chris@0:       }
Chris@0: 
Chris@0:       foreach ($tree as $item) {
Chris@0:         if (!in_array($item->tid, $exclude)) {
Chris@0:           $options[$item->tid] = str_repeat('-', $item->depth) . $item->name;
Chris@0:         }
Chris@0:       }
Chris@0: 
Chris@0:       $form['relations']['parent'] = [
Chris@0:         '#type' => 'select',
Chris@0:         '#title' => $this->t('Parent terms'),
Chris@0:         '#options' => $options,
Chris@0:         '#default_value' => $parent,
Chris@0:         '#multiple' => TRUE,
Chris@0:       ];
Chris@0:     }
Chris@0: 
Chris@0:     $form['relations']['weight'] = [
Chris@0:       '#type' => 'textfield',
Chris@0:       '#title' => $this->t('Weight'),
Chris@0:       '#size' => 6,
Chris@0:       '#default_value' => $term->getWeight(),
Chris@0:       '#description' => $this->t('Terms are displayed in ascending order by weight.'),
Chris@0:       '#required' => TRUE,
Chris@0:     ];
Chris@0: 
Chris@0:     $form['vid'] = [
Chris@0:       '#type' => 'value',
Chris@0:       '#value' => $vocabulary->id(),
Chris@0:     ];
Chris@0: 
Chris@0:     $form['tid'] = [
Chris@0:       '#type' => 'value',
Chris@0:       '#value' => $term->id(),
Chris@0:     ];
Chris@0: 
Chris@0:     return parent::form($form, $form_state);
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   public function validateForm(array &$form, FormStateInterface $form_state) {
Chris@0:     parent::validateForm($form, $form_state);
Chris@0: 
Chris@0:     // Ensure numeric values.
Chris@0:     if ($form_state->hasValue('weight') && !is_numeric($form_state->getValue('weight'))) {
Chris@0:       $form_state->setErrorByName('weight', $this->t('Weight value must be numeric.'));
Chris@0:     }
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   public function buildEntity(array $form, FormStateInterface $form_state) {
Chris@0:     $term = parent::buildEntity($form, $form_state);
Chris@0: 
Chris@0:     // Prevent leading and trailing spaces in term names.
Chris@0:     $term->setName(trim($term->getName()));
Chris@0: 
Chris@0:     // Assign parents with proper delta values starting from 0.
Chris@0:     $term->parent = array_keys($form_state->getValue('parent'));
Chris@0: 
Chris@0:     return $term;
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@18:   protected function getEditedFieldNames(FormStateInterface $form_state) {
Chris@18:     return array_merge(['parent', 'weight'], parent::getEditedFieldNames($form_state));
Chris@18:   }
Chris@18: 
Chris@18:   /**
Chris@18:    * {@inheritdoc}
Chris@18:    */
Chris@18:   protected function flagViolations(EntityConstraintViolationListInterface $violations, array $form, FormStateInterface $form_state) {
Chris@18:     // Manually flag violations of fields not handled by the form display. This
Chris@18:     // is necessary as entity form displays only flag violations for fields
Chris@18:     // contained in the display.
Chris@18:     // @see ::form()
Chris@18:     foreach ($violations->getByField('parent') as $violation) {
Chris@18:       $form_state->setErrorByName('parent', $violation->getMessage());
Chris@18:     }
Chris@18:     foreach ($violations->getByField('weight') as $violation) {
Chris@18:       $form_state->setErrorByName('weight', $violation->getMessage());
Chris@18:     }
Chris@18: 
Chris@18:     parent::flagViolations($violations, $form, $form_state);
Chris@18:   }
Chris@18: 
Chris@18:   /**
Chris@18:    * {@inheritdoc}
Chris@18:    */
Chris@0:   public function save(array $form, FormStateInterface $form_state) {
Chris@0:     $term = $this->entity;
Chris@0: 
Chris@0:     $result = $term->save();
Chris@0: 
Chris@18:     $edit_link = $term->toLink($this->t('Edit'), 'edit-form')->toString();
Chris@18:     $view_link = $term->toLink()->toString();
Chris@0:     switch ($result) {
Chris@0:       case SAVED_NEW:
Chris@17:         $this->messenger()->addStatus($this->t('Created new term %term.', ['%term' => $view_link]));
Chris@0:         $this->logger('taxonomy')->notice('Created new term %term.', ['%term' => $term->getName(), 'link' => $edit_link]);
Chris@0:         break;
Chris@0:       case SAVED_UPDATED:
Chris@17:         $this->messenger()->addStatus($this->t('Updated term %term.', ['%term' => $view_link]));
Chris@0:         $this->logger('taxonomy')->notice('Updated term %term.', ['%term' => $term->getName(), 'link' => $edit_link]);
Chris@0:         break;
Chris@0:     }
Chris@0: 
Chris@0:     $current_parent_count = count($form_state->getValue('parent'));
Chris@0:     // Root doesn't count if it's the only parent.
Chris@0:     if ($current_parent_count == 1 && $form_state->hasValue(['parent', 0])) {
Chris@0:       $form_state->setValue('parent', []);
Chris@0:     }
Chris@0: 
Chris@0:     $form_state->setValue('tid', $term->id());
Chris@0:     $form_state->set('tid', $term->id());
Chris@0:   }
Chris@0: 
Chris@0: }