/**
* Returns a list of mapped properties for the passed content entity.
*
* @param \Drupal\Core\Entity\EntityInterface $entity
* A content entity.
*
* @return array
* An array of mappings between predicates and field properties. All
* fields, and properties of the entity and the fields, that are available
* will be returned.
*/
public function getEntityTypeMappedProperties(EntityInterface $entity)
{
$bundle = $entity->bundle();
$properties = [];
// Collect impacted fields.
$definitions = $this->entityManager->getFieldDefinitions($entity->getEntityTypeId(), $bundle);
$base_field_definitions = $this->entityManager->getBaseFieldDefinitions($entity->getEntityTypeId());
$rdf_bundle_entity = $this->entityManager->getStorage($entity->getEntityType()->getBundleEntityType())->load($bundle);
/** @var \Drupal\Core\Field\BaseFieldDefinition $field_definition */
foreach ($definitions as $field_name => $field_definition) {
/** @var \Drupal\field\Entity\FieldStorageConfig $storage_definition */
$storage_definition = $field_definition->getFieldStorageDefinition();
if (!$storage_definition instanceof FieldStorageConfig) {
continue;
}
foreach ($storage_definition->getColumns() as $column => $column_info) {
if ($property = $storage_definition->getThirdPartySetting('rdf_entity', 'mapping_' . $column, FALSE)) {
$properties['by_field'][$field_name][$column] = $property;
$properties['flat'][$property] = $property;
}
}
}
foreach ($base_field_definitions as $field_name => $base_field_definition) {
$field_data = $rdf_bundle_entity->getThirdPartySetting('rdf_entity', 'mapping_' . $field_name, FALSE);
if (!$field_data) {
continue;
}
foreach ($field_data as $column => $predicate) {
if (empty($predicate)) {
continue;
}
$properties['by_field'][$field_name][$column] = $predicate;
$properties['flat'][$predicate] = $predicate;
}
}
return $properties;
}
