protected function ResourceFieldEntityReference::referencedId in RESTful 7.2

Helper function to get the referenced entity ID.

Parameters

\EntityDrupalWrapper $property_wrapper: The wrapper for the referenced entity.

Return value

mixed The ID.

Overrides ResourceFieldEntity::referencedId

1 call to ResourceFieldEntityReference::referencedId()

ResourceFieldEntityReference::value in src/Plugin/resource/Field/ResourceFieldEntityReference.php

Gets the value for the field given a data source.

1 method overrides ResourceFieldEntityReference::referencedId()

ResourceFieldFileEntityReference::referencedId in src/Plugin/resource/Field/ResourceFieldFileEntityReference.php

Helper function to get the referenced entity ID.

File

src/Plugin/resource/Field/ResourceFieldEntityReference.php, line 233

Contains \Drupal\restful\Plugin\resource\Field\ResourceFieldEntityReference.

Class

ResourceFieldEntityReference

Class ResourceFieldEntityReference.

Namespace

Drupal\restful\Plugin\resource\Field

Code

protected function referencedId($property_wrapper) {
  $identifier = $property_wrapper
    ->getIdentifier();
  if (!$this->referencedIdProperty) {
    return $identifier;
  }
  try {
    return $identifier ? $property_wrapper->{$this->referencedIdProperty}
      ->value() : NULL;
  } catch (\EntityMetadataWrapperException $e) {

    // An exception will be raised for broken entity reference fields.
    return NULL;
  }
}