PHP FieldItemListInterface::getName方法代码示例

 /**
  * {@inheritdoc}
  */
 public function formElement(FieldItemListInterface $items, $delta, array $element, array &$form, FormStateInterface $form_state)
 {
     // Trick inline_entity_form_form_alter() into attaching the handlers,
     // WidgetSubmit will be needed once extractFormValues fills the $form_state.
     $parents = array_merge($element['#field_parents'], [$items->getName()]);
     $ief_id = sha1(implode('-', $parents));
     $form_state->set(['inline_entity_form', $ief_id], []);
     $element['#type'] = 'fieldset';
     $item = $items->get($delta);
     if ($item->target_id && !$item->entity) {
         $element['warning']['#markup'] = $this->t('Unable to load the referenced entity.');
         return $element;
     }
     $entity = $item->entity;
     $op = $entity ? 'edit' : 'add';
     $language = $items->getParent()->getValue()->language()->getId();
     $parents = array_merge($element['#field_parents'], [$items->getName(), $delta, 'inline_entity_form']);
     $bundle = reset($this->getFieldSetting('handler_settings')['target_bundles']);
     $element['inline_entity_form'] = $this->getInlineEntityForm($op, $bundle, $language, $delta, $parents, $entity);
     if ($op == 'edit') {
         /** @var \Drupal\Core\Entity\ContentEntityInterface $entity */
         if (!$entity->access('update')) {
             // The user isn't allowed to edit the entity, but still needs to see
             // it, to be able to reorder values.
             $element['entity_label'] = ['#type' => 'markup', '#markup' => $entity->label()];
             // Hide the inline form. getInlineEntityForm() still needed to be
             // called because otherwise the field re-ordering doesn't work.
             $element['inline_entity_form']['#access'] = FALSE;
         }
     }
     return $element;
 }

 /**
  * {@inheritdoc}
  */
 public function extractFormValues(FieldItemListInterface $items, array $form, FormStateInterface $form_state)
 {
     if ($this->isDefaultValueWidget($form_state)) {
         $items->filterEmptyItems();
         return;
     }
     $field_name = $this->fieldDefinition->getName();
     $path = array_merge($form['#parents'], array($field_name));
     $submitted_values = $form_state->getValue($path);
     $values = [];
     foreach ($items as $delta => $value) {
         $this->setIefId(sha1($items->getName() . '-ief-single-' . $delta));
         /** @var \Drupal\Core\Entity\EntityInterface $entity */
         if (!($entity = $form_state->get(['inline_entity_form', $this->getIefId(), 'entity']))) {
             return;
         }
         $values[$submitted_values[$delta]['_weight']] = ['entity' => $entity];
     }
     // Sort items base on weights.
     ksort($values);
     $values = array_values($values);
     // Let the widget massage the submitted values.
     $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_name = $this->fieldDefinition->getName();
     $field_state = WidgetBase::getWidgetState($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, $item->_weight);
     }
     WidgetBase::setWidgetState($form['#parents'], $field_name, $form_state, $field_state);
 }

 /**
  * {@inheritdoc}
  */
 protected function formMultipleElements(FieldItemListInterface $items, array &$form, FormStateInterface $form_state)
 {
     // Adjust wrapper identifiers as they are shared between parents and
     // children in nested field collections.
     $form['#wrapper_id'] = Html::getUniqueID($items->getName());
     $elements = parent::formMultipleElements($items, $form, $form_state);
     $elements['#prefix'] = '<div id="' . $form['#wrapper_id'] . '">';
     $elements['#suffix'] = '</div>';
     $elements['add_more']['#ajax']['wrapper'] = $form['#wrapper_id'];
     return $elements;
 }

 /**
  * {@inheritdoc}
  */
 public function formElement(FieldItemListInterface $items, $delta, array $element, array &$form, FormStateInterface $form_state)
 {
     if (!$this->canBuildForm($form_state)) {
         return $element;
     }
     $settings = $this->getSettings();
     $target_type = $this->getFieldSetting('target_type');
     // Get the entity type labels for the UI strings.
     $labels = $this->labels();
     // Build a parents array for this element's values in the form.
     $parents = array_merge($element['#field_parents'], array($items->getName(), 'form'));
     // Assign a unique identifier to each IEF widget.
     // Since $parents can get quite long, sha1() ensures that every id has
     // a consistent and relatively short length while maintaining uniqueness.
     $this->setIefId(sha1(implode('-', $parents)));
     // Get the langcode of the parent entity.
     $parent_langcode = $items->getParent()->getValue()->language()->getId();
     // Determine the wrapper ID for the entire element.
     $wrapper = 'inline-entity-form-' . $this->getIefId();
     $element = array('#type' => 'fieldset', '#tree' => TRUE, '#description' => NULL, '#prefix' => '<div id="' . $wrapper . '">', '#suffix' => '</div>', '#ief_id' => $this->getIefId(), '#ief_root' => TRUE) + $element;
     $element['#attached']['library'][] = 'inline_entity_form/widget';
     // Initialize the IEF array in form state.
     if (!$form_state->has(['inline_entity_form', $this->getIefId(), 'settings'])) {
         $form_state->set(['inline_entity_form', $this->getIefId(), 'settings'], $this->getFieldSettings());
     }
     if (!$form_state->has(['inline_entity_form', $this->getIefId(), 'instance'])) {
         $form_state->set(['inline_entity_form', $this->getIefId(), 'instance'], $this->fieldDefinition);
     }
     if (!$form_state->has(['inline_entity_form', $this->getIefId(), 'form'])) {
         $form_state->set(['inline_entity_form', $this->getIefId(), 'form'], NULL);
     }
     if (!$form_state->has(['inline_entity_form', $this->getIefId(), 'array_parents'])) {
         $form_state->set(['inline_entity_form', $this->getIefId(), 'array_parents'], $parents);
     }
     $entities = $form_state->get(['inline_entity_form', $this->getIefId(), 'entities']);
     if (!isset($entities)) {
         // Load the entities from the $items array and store them in the form
         // state for further manipulation.
         $form_state->set(['inline_entity_form', $this->getIefId(), 'entities'], array());
         if (count($items)) {
             foreach ($items as $delta => $item) {
                 if ($item->entity && is_object($item->entity)) {
                     $form_state->set(['inline_entity_form', $this->getIefId(), 'entities', $delta], array('entity' => $item->entity, '_weight' => $delta, 'form' => NULL, 'needs_save' => FALSE));
                 }
             }
         }
         $entities = $form_state->get(['inline_entity_form', $this->getIefId(), 'entities']);
     }
     // Remove any leftover data from removed entity references.
     foreach ($entities as $key => $value) {
         if (!isset($value) || !isset($value['entity'])) {
             unset($entities[$key]);
         }
     }
     // Build the "Multiple value" widget.
     // TODO - does this belong in #element_validate?
     $element['#element_validate'] = [[get_class($this), 'updateRowWeights']];
     // Add the required element marker & validation.
     if ($element['#required']) {
         $element['#element_validate'][] = [get_class($this), 'requiredField'];
     }
     $element['entities'] = array('#tree' => TRUE, '#theme' => 'inline_entity_form_entity_table', '#entity_type' => $target_type);
     // Get the fields that should be displayed in the table.
     $target_bundles = $this->getTargetBundles();
     $fields = $this->iefHandler->tableFields($target_bundles);
     $context = array('parent_entity_type' => $this->fieldDefinition->getTargetEntityTypeId(), 'parent_bundle' => $this->fieldDefinition->getTargetBundle(), 'field_name' => $this->fieldDefinition->getName(), 'entity_type' => $target_type, 'allowed_bundles' => $target_bundles);
     $this->moduleHandler->alter('inline_entity_form_table_fields', $fields, $context);
     $element['entities']['#table_fields'] = $fields;
     $weight_delta = max(ceil(count($entities) * 1.2), 50);
     foreach ($entities as $key => $value) {
         // Data used by theme_inline_entity_form_entity_table().
         /** @var \Drupal\Core\Entity\EntityInterface $entity */
         $entity = $value['entity'];
         $element['entities'][$key]['#entity'] = $value['entity'];
         $element['entities'][$key]['#needs_save'] = $value['needs_save'];
         // Handle row weights.
         $element['entities'][$key]['#weight'] = $value['_weight'];
         // First check to see if this entity should be displayed as a form.
         if (!empty($value['form'])) {
             $element['entities'][$key]['title'] = array();
             $element['entities'][$key]['delta'] = array('#type' => 'value', '#value' => $value['_weight']);
             // Add the appropriate form.
             if ($value['form'] == 'edit') {
                 $element['entities'][$key]['form'] = ['#type' => 'container', '#attributes' => ['class' => ['ief-form', 'ief-form-row']], 'inline_entity_form' => $this->getInlineEntityForm($value['form'], $parent_langcode, $key, array_merge($parents, ['inline_entity_form', 'entities', $key, 'form']), $entity->bundle(), $entity)];
                 $element['entities'][$key]['form']['inline_entity_form']['#process'] = [['\\Drupal\\inline_entity_form\\Element\\InlineEntityForm', 'processEntityForm'], [get_class($this), 'addIefSubmitCallbacks'], [get_class($this), 'buildEntityFormActions']];
             } elseif ($value['form'] == 'remove') {
                 $element['entities'][$key]['form'] = ['#type' => 'container', '#attributes' => ['class' => ['ief-form', 'ief-form-row']], '#parents' => array_merge($parents, ['entities', $key, 'form']), '#entity' => $entity, '#ief_id' => $this->getIefId(), '#ief_row_delta' => $key];
                 $this->buildRemoveForm($element['entities'][$key]['form']);
             }
         } else {
             $row =& $element['entities'][$key];
             $row['title'] = array();
             $row['delta'] = array('#type' => 'weight', '#delta' => $weight_delta, '#default_value' => $value['_weight'], '#attributes' => array('class' => array('ief-entity-delta')));
             // Add an actions container with edit and delete buttons for the entity.
             $row['actions'] = array('#type' => 'container', '#attributes' => array('class' => array('ief-entity-operations')));
             // Make sure entity_access is not checked for unsaved entities.
             $entity_id = $entity->id();
//.........这里部分代码省略.........

 /**
  * {@inheritdoc}
  */
 public function formElement(FieldItemListInterface $items, $delta, array $element, array &$form, FormStateInterface $form_state)
 {
     /** @var \Drupal\commerce_product\Entity\ProductInterface $product */
     $product = $form_state->get('product');
     $variations = $this->variationStorage->loadEnabled($product);
     if (count($variations) === 0) {
         // Nothing to purchase, tell the parent form to hide itself.
         $form_state->set('hide_form', TRUE);
         $element['variation'] = ['#type' => 'value', '#value' => 0];
         return $element;
     } elseif (count($variations) === 1) {
         // Preselect the only possible variation.
         // @todo Limit this behavior to products with no attributes instead.
         $selected_variation = reset($variations);
         $element['variation'] = ['#type' => 'value', '#value' => $selected_variation->id()];
         return $element;
     }
     // Build the full attribute form.
     $wrapper_id = Html::getUniqueId('commerce-product-add-to-cart-form');
     $form += ['#wrapper_id' => $wrapper_id, '#prefix' => '<div id="' . $wrapper_id . '">', '#suffix' => '</div>'];
     $parents = array_merge($element['#field_parents'], [$items->getName(), $delta]);
     $user_input = (array) NestedArray::getValue($form_state->getUserInput(), $parents);
     $selected_variation = $this->selectVariationFromUserInput($variations, $user_input);
     $element['variation'] = ['#type' => 'value', '#value' => $selected_variation->id()];
     $element['attributes'] = ['#type' => 'container', '#attributes' => ['class' => ['attribute-widgets']]];
     foreach ($this->getAttributeInfo($selected_variation, $variations) as $field_name => $attribute) {
         $element['attributes'][$field_name] = ['#type' => $attribute['type'], '#title' => $attribute['title'], '#options' => $attribute['values'], '#required' => $attribute['required'], '#default_value' => $selected_variation->getAttributeId($field_name), '#ajax' => ['callback' => [get_class($this), 'ajaxRefresh'], 'wrapper' => $form['#wrapper_id']]];
         // Convert the _none option into #empty_value.
         if (isset($element['attributes'][$field_name]['options']['_none'])) {
             if (!$element['attributes'][$field_name]['#required']) {
                 $element['attributes'][$field_name]['#empty_value'] = '';
             }
             unset($element['attributes'][$field_name]['options']['_none']);
         }
         // 1 required value -> Disable the element to skip unneeded ajax calls.
         if ($attribute['required'] && count($attribute['values']) === 1) {
             $element['attributes'][$field_name]['#disabled'] = TRUE;
         }
     }
     return $element;
 }