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<?php
namespace Drupal\taxonomy\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 Drupal\migrate_drupal\Plugin\MigrateFieldPluginManagerInterface;
use Symfony\Component\DependencyInjection\ContainerInterface;
/**
* Deriver for Drupal 7 taxonomy term migrations based on vocabularies.
*/
class D7TaxonomyTermDeriver 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;
/**
* Already-instantiated field plugins, keyed by ID.
*
* @var \Drupal\migrate_drupal\Plugin\MigrateFieldInterface[]
*/
protected $fieldPluginCache;
/**
* The field plugin manager.
*
* @var \Drupal\migrate_drupal\Plugin\MigrateFieldPluginManagerInterface
*/
protected $fieldPluginManager;
/**
* D7TaxonomyTermDeriver 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 \Drupal\migrate_drupal\Plugin\MigrateFieldPluginManagerInterface $field_manager
* The field plugin manager.
public function __construct($base_plugin_id, MigrateCckFieldPluginManagerInterface $cck_manager, MigrateFieldPluginManagerInterface $field_manager) {
$this->basePluginId = $base_plugin_id;
$this->cckPluginManager = $cck_manager;
$this->fieldPluginManager = $field_manager;
}
/**
* {@inheritdoc}
*/
public static function create(ContainerInterface $container, $base_plugin_id) {
return new static(
$base_plugin_id,
$container->get('plugin.manager.migrate.cckfield'),
$container->get('plugin.manager.migrate.field')
);
}
/**
* {@inheritdoc}
*/
public function getDerivativeDefinitions($base_plugin_definition) {
$fields = [];
try {
$source_plugin = static::getSourcePlugin('d7_field_instance');
$source_plugin->checkRequirements();
// Read all field instance definitions in the source database.
foreach ($source_plugin as $row) {
if ($row->getSourceProperty('entity_type') == 'taxonomy_term') {
$fields[$row->getSourceProperty('bundle')][$row->getSourceProperty('field_name')] = $row->getSource();
}
}
}
catch (RequirementsException $e) {
// If checkRequirements() failed then the field module did not exist and
// we do not have any fields. Therefore, $fields will be empty and below
// we'll create a migration just for the node properties.
}
$vocabulary_source_plugin = static::getSourcePlugin('d7_taxonomy_vocabulary');
try {
$vocabulary_source_plugin->checkRequirements();
}
catch (RequirementsException $e) {
// If the d7_taxonomy_vocabulary requirements failed, that means we do not
// have a Drupal source database configured - there is nothing to
// generate.
return $this->derivatives;
}
try {
foreach ($vocabulary_source_plugin as $row) {
$bundle = $row->getSourceProperty('machine_name');
$values = $base_plugin_definition;
$values['label'] = t('@label (@type)', [
'@label' => $values['label'],
'@type' => $row->getSourceProperty('name'),
]);
$values['source']['bundle'] = $bundle;
$values['destination']['default_bundle'] = $bundle;
/** @var Migration $migration */
$migration = \Drupal::service('plugin.manager.migration')->createStubMigration($values);
if (isset($fields[$bundle])) {
foreach ($fields[$bundle] as $field_name => $info) {
$field_type = $info['type'];
try {
$plugin_id = $this->fieldPluginManager->getPluginIdFromFieldType($field_type, ['core' => 7], $migration);
if (!isset($this->fieldPluginCache[$field_type])) {
$this->fieldPluginCache[$field_type] = $this->fieldPluginManager->createInstance($plugin_id, ['core' => 7], $migration);
$this->fieldPluginCache[$field_type]
->processFieldValues($migration, $field_name, $info);
}
catch (PluginNotFoundException $ex) {
try {
$plugin_id = $this->cckPluginManager->getPluginIdFromFieldType($field_type, ['core' => 7], $migration);
if (!isset($this->cckPluginCache[$field_type])) {
$this->cckPluginCache[$field_type] = $this->cckPluginManager->createInstance($plugin_id, ['core' => 7], $migration);
}
$this->cckPluginCache[$field_type]
->processCckFieldValues($migration, $field_name, $info);
}
catch (PluginNotFoundException $ex) {
$migration->setProcessOfProperty($field_name, $field_name);
}
}
}
}
$this->derivatives[$bundle] = $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 7 source database.
}
return $this->derivatives;
}
}