function EntityContentBase::fields

Overrides Entity::fields

File

core/modules/migrate/src/Plugin/migrate/destination/EntityContentBase.php, line 423

Class

EntityContentBase

Provides destination class for all content entities lacking a specific class.

Namespace

Code

public function fields() : array {
    $entity_type = $this->storage
        ->getEntityType();
    // Retrieving fields from a non-fieldable content entity will return a
    // LogicException. Return an empty list of fields instead.
    if (!$entity_type->entityClassImplements(FieldableEntityInterface::class)) {
        return [];
    }
    // Try to determine the bundle to use when getting fields.
    $bundle_info = $this->entityTypeBundleInfo
        ->getBundleInfo($entity_type->id());
    if (!empty($this->configuration['default_bundle'])) {
        // If the migration destination configuration specifies a default_bundle,
        // then use that.
        $bundle = $this->configuration['default_bundle'];
        if (!isset($bundle_info[$bundle])) {
            throw new MigrateException(sprintf("The default_bundle value '%s' is not a valid bundle for the destination entity type '%s'.", $bundle, $entity_type->id()));
        }
    }
    elseif (count($bundle_info) === 1) {
        // If the destination entity type has only one bundle, use that.
        $bundle = array_key_first($bundle_info);
    }
    if (isset($bundle)) {
        // If we have a bundle, get all the fields.
        $field_definitions = $this->entityFieldManager
            ->getFieldDefinitions($entity_type->id(), $bundle);
    }
    else {
        // Without a bundle, we can only get the base fields.
        $field_definitions = $this->entityFieldManager
            ->getBaseFieldDefinitions($entity_type->id());
    }
    $fields = [];
    foreach ($field_definitions as $field_name => $definition) {
        $fields[$field_name] = (string) $definition->getLabel();
    }
    return $fields;
}