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<?php
namespace Drupal\node\Plugin\migrate;
use Drupal\Component\Plugin\Derivative\DeriverBase;
use Drupal\Component\Plugin\Exception\PluginNotFoundException;
use Drupal\Core\Database\DatabaseExceptionWrapper;
use Drupal\Core\Plugin\Discovery\ContainerDeriverInterface;
use Drupal\migrate\Exception\RequirementsException;
use Drupal\migrate\Plugin\MigrationDeriverTrait;
use Drupal\migrate_drupal\Plugin\MigrateCckFieldPluginManagerInterface;
use Symfony\Component\DependencyInjection\ContainerInterface;
/**
* Deriver for Drupal 6 node and node revision migrations based on node types.
*/
class D6NodeDeriver extends DeriverBase implements ContainerDeriverInterface {
use MigrationDeriverTrait;
/**
* The base plugin ID this derivative is for.
*
* @var string
*/
protected $basePluginId;
/**
* Already-instantiated cckfield plugins, keyed by ID.
* @var \Drupal\migrate_drupal\Plugin\MigrateCckFieldInterface[]
protected $cckPluginCache;
* The CCK plugin manager.
* @var \Drupal\migrate_drupal\Plugin\MigrateCckFieldPluginManagerInterface
protected $cckPluginManager;
/**
* Whether or not to include translations.
*
* @var bool
*/
protected $includeTranslations;
/**
* D6NodeDeriver constructor.
*
* @param string $base_plugin_id
* The base plugin ID for the plugin ID.
* @param \Drupal\migrate_drupal\Plugin\MigrateCckFieldPluginManagerInterface $cck_manager
* The CCK plugin manager.
* @param bool $translations
* Whether or not to include translations.
public function __construct($base_plugin_id, MigrateCckFieldPluginManagerInterface $cck_manager, $translations) {
$this->basePluginId = $base_plugin_id;
$this->cckPluginManager = $cck_manager;
$this->includeTranslations = $translations;
}
/**
* {@inheritdoc}
*/
public static function create(ContainerInterface $container, $base_plugin_id) {
// Translations don't make sense unless we have content_translation.
return new static(
$base_plugin_id,
$container->get('plugin.manager.migrate.cckfield'),
$container->get('module_handler')->moduleExists('content_translation')
);
}
/**
* Gets the definition of all derivatives of a base plugin.
*
* @param array $base_plugin_definition
* The definition array of the base plugin.
*
* @return array
* An array of full derivative definitions keyed on derivative id.
*
* @see \Drupal\Component\Plugin\Derivative\DeriverBase::getDerivativeDefinition()
*/
public function getDerivativeDefinitions($base_plugin_definition) {
if ($base_plugin_definition['id'] == 'd6_node_translation' && !$this->includeTranslations) {
// Refuse to generate anything.
return $this->derivatives;
}
// Read all CCK field instance definitions in the source database.
$fields = array();
try {
$source_plugin = static::getSourcePlugin('d6_field_instance');
$source_plugin->checkRequirements();
foreach ($source_plugin as $row) {
$fields[$row->getSourceProperty('type_name')][$row->getSourceProperty('field_name')] = $row->getSource();
}
}
catch (RequirementsException $e) {
// If checkRequirements() failed then the content module did not exist and
// we do not have any CCK fields. Therefore, $fields will be empty and
// below we'll create a migration just for the node properties.
}
try {
foreach (static::getSourcePlugin('d6_node_type') as $row) {
$node_type = $row->getSourceProperty('type');
$values = $base_plugin_definition;
$values['label'] = t("@label (@type)", [
'@label' => $values['label'],
'@type' => $node_type,
]);
$values['source']['node_type'] = $node_type;
$values['destination']['default_bundle'] = $node_type;
// If this migration is based on the d6_node_revision migration or
// is for translations of nodes, it should explicitly depend on the
// corresponding d6_node variant.
if (in_array($base_plugin_definition['id'], ['d6_node_revision', 'd6_node_translation'])) {
$values['migration_dependencies']['required'][] = 'd6_node:' . $node_type;
}
$migration = \Drupal::service('plugin.manager.migration')->createStubMigration($values);
if (isset($fields[$node_type])) {
foreach ($fields[$node_type] as $field_name => $info) {
$field_type = $info['type'];
try {
$plugin_id = $this->cckPluginManager->getPluginIdFromFieldType($field_type, ['core' => 6], $migration);
if (!isset($this->cckPluginCache[$field_type])) {
$this->cckPluginCache[$field_type] = $this->cckPluginManager->createInstance($plugin_id, ['core' => 6], $migration);
$this->cckPluginCache[$field_type]
->processCckFieldValues($migration, $field_name, $info);
catch (PluginNotFoundException $ex) {
$migration->setProcessOfProperty($field_name, $field_name);
}
}
}
$this->derivatives[$node_type] = $migration->getPluginDefinition();
}
}
catch (DatabaseExceptionWrapper $e) {
// Once we begin iterating the source plugin it is possible that the
// source tables will not exist. This can happen when the
// MigrationPluginManager gathers up the migration definitions but we do
// not actually have a Drupal 6 source database.
}
return $this->derivatives;
}
}