/**
* {@inheritdoc}
*/
protected function viewValue(FieldItemInterface $item)
{
$value = $item->value;
if ($this->getSetting('filemime_image') && $value) {
$file_icon = ['#theme' => 'image__file_icon', '#file' => $item->getEntity()];
return $file_icon;
}
return $value;
}
/**
* Helper function to get Edit and Delete links for an item.
*/
protected function getEditLinks(FieldItemInterface $item)
{
$links = '';
if ($item->getEntity()->access('update', \Drupal::currentUser())) {
$links = '(' . \Drupal::l(t('Edit'), Url::FromRoute('entity.field_collection_item.edit_form', array('field_collection_item' => $item->value)));
$links .= '|' . \Drupal::l(t('Delete'), Url::FromRoute('entity.field_collection_item.delete_form', array('field_collection_item' => $item->value)));
$links .= ')';
}
return $links;
}
/**
* Returns the array of options for the widget.
*
* @param \Drupal\Core\Field\FieldItemInterface $item
* The field item.
*
* @return array
* The array of options for the widget.
*/
protected function getOptions(FieldItemInterface $item)
{
if (!isset($this->options)) {
// Limit the settable options for the current user account.
$options = $item->getSettableOptions(\Drupal::currentUser());
// Add an empty option if the widget needs one.
if ($empty_option = $this->getEmptyOption()) {
switch ($this->getPluginId()) {
case 'options_buttons':
$label = t('N/A');
break;
case 'options_select':
$label = $empty_option == static::OPTIONS_EMPTY_NONE ? t('- None -') : t('- Select a value -');
break;
}
$options = array('_none' => $label) + $options;
}
$module_handler = \Drupal::moduleHandler();
$context = array('fieldDefinition' => $this->fieldDefinition, 'entity' => $item->getEntity());
$module_handler->alter('options_list', $options, $context);
array_walk_recursive($options, array($this, 'sanitizeLabel'));
// Options might be nested ("optgroups"). If the widget does not support
// nested options, flatten the list.
if (!$this->supportsGroups()) {
$options = $this->flattenOptions($options);
}
$this->options = $options;
}
return $this->options;
}
/**
* Returns the key value collection that should be used for the given entity.
* @return string
*/
protected function getCollection()
{
return 'pathauto_state.' . $this->parent->getEntity()->getEntityTypeId();
}
/**
* Get a translated version of the field item instance.
*
* To indicate that a field item applies to one translation of an entity and
* not another, the property path must originate with a translation of the
* entity. This is the reason for using target_instances, from which the
* property path can be traversed up to the root.
*
* @param \Drupal\Core\Field\FieldItemInterface $field_item
* The untranslated field item instance.
* @param $langcode
* The langcode.
*
* @return \Drupal\Core\Field\FieldItemInterface
* The translated field item instance.
*/
protected function createTranslatedInstance(FieldItemInterface $item, $langcode)
{
// Remove the untranslated item that was created for the default language
// by FieldNormalizer::denormalize().
$items = $item->getParent();
$delta = $item->getName();
unset($items[$delta]);
// Instead, create a new item for the entity in the requested language.
$entity = $item->getEntity();
$entity_translation = $entity->hasTranslation($langcode) ? $entity->getTranslation($langcode) : $entity->addTranslation($langcode);
$field_name = $item->getFieldDefinition()->getName();
return $entity_translation->get($field_name)->appendItem();
}
/**
* {@inheritdoc}
*/
public function viewFieldItem(FieldItemInterface $item, $display = array())
{
$entity = $item->getEntity();
$field_name = $item->getFieldDefinition()->getName();
// Clone the entity since we are going to modify field values.
$clone = clone $entity;
// Push the item as the single value for the field, and defer to viewField()
// to build the render array for the whole list.
$clone->{$field_name}->setValue(array($item->getValue()));
$elements = $this->viewField($clone->{$field_name}, $display);
// Extract the part of the render array we need.
$output = isset($elements[0]) ? $elements[0] : array();
if (isset($elements['#access'])) {
$output['#access'] = $elements['#access'];
}
return $output;
}
/**
* Get a translated version of the field item instance.
*
* To indicate that a field item applies to one translation of an entity and
* not another, the property path must originate with a translation of the
* entity. This is the reason for using target_instances, from which the
* property path can be traversed up to the root.
*
* @param \Drupal\Core\Field\FieldItemInterface $field_item
* The untranslated field item instance.
* @param $langcode
* The langcode.
*
* @return \Drupal\Core\Field\FieldItemInterface
* The translated field item instance.
*/
protected function createTranslatedInstance(FieldItemInterface $field_item, $langcode)
{
$field_items = $field_item->getParent();
// Remove the untranslated instance from the field's list of items.
$field_items->offsetUnset($field_item->getName());
// Get the entity in the requested language and the field's item list from
// that.
$entity_translation = $field_item->getEntity()->getTranslation($langcode);
$field_items_translation = $entity_translation->get($field_item->getFieldDefinition()->getName());
// Create a new instance and return it.
$count = $field_items_translation->isEmpty() ? 0 : $field_items_translation->count();
return $field_items_translation->get($count);
}
/**
* Gets the relation URI of the field containing an item.
*
* The relation URI is used as a property key when building the HAL structure.
*
* @param FieldItemInterface $field_item
* The field item that is being normalized.
*
* @return string
* The relation URI of the field.
*/
protected function getFieldRelationUri(FieldItemInterface $field_item)
{
$field_name = $field_item->getParent()->getName();
$entity = $field_item->getEntity();
return $this->linkManager->getRelationUri($entity->getEntityTypeId(), $entity->bundle(), $field_name);
}
