public function ResourceFieldInterface::compoundDocumentId in RESTful 7.2

Fetches the embedded identifier(s) for the current resource field, if any.

Parameters

DataInterpreterInterface $interpreter: The data interpreter to get the compound ID.

Return value

string|string[] An identifier or an array of identifiers for cardinality > 1. NULL if there is no identifier to be found.

3 methods override ResourceFieldInterface::compoundDocumentId()

ResourceField::compoundDocumentId in src/Plugin/resource/Field/ResourceField.php

Fetches the embedded identifier(s) for the current resource field, if any.

ResourceFieldEntity::compoundDocumentId in src/Plugin/resource/Field/ResourceFieldEntity.php

Fetches the embedded identifier(s) for the current resource field, if any.

ResourceFieldResource::compoundDocumentId in src/Plugin/resource/Field/ResourceFieldResource.php

Fetches the embedded identifier(s) for the current resource field, if any.

File

src/Plugin/resource/Field/ResourceFieldInterface.php, line 231

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

Class

ResourceFieldInterface

Namespace

Drupal\restful\Plugin\resource\Field

Code

public function compoundDocumentId(DataInterpreterInterface $interpreter);