diff core/modules/node/src/Plugin/migrate/D6NodeDeriver.php @ 0:4c8ae668cc8c

Initial import (non-working)

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/core/modules/node/src/Plugin/migrate/D6NodeDeriver.php	Wed Nov 29 16:09:58 2017 +0000
@@ -0,0 +1,198 @@
+<?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 Drupal\migrate_drupal\Plugin\MigrateFieldPluginManagerInterface;
+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;
+
+  /**
+   * 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;
+
+  /**
+   * 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 \Drupal\migrate_drupal\Plugin\MigrateFieldPluginManagerInterface $field_manager
+   *   The field plugin manager.
+   * @param bool $translations
+   *   Whether or not to include translations.
+   */
+  public function __construct($base_plugin_id, MigrateCckFieldPluginManagerInterface $cck_manager, MigrateFieldPluginManagerInterface $field_manager, $translations) {
+    $this->basePluginId = $base_plugin_id;
+    $this->cckPluginManager = $cck_manager;
+    $this->fieldPluginManager = $field_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('plugin.manager.migrate.field'),
+      $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;
+    }
+
+    $node_types = static::getSourcePlugin('d6_node_type');
+    try {
+      $node_types->checkRequirements();
+    }
+    catch (RequirementsException $e) {
+      // If the d6_node_type requirements failed, that means we do not have a
+      // Drupal source database configured - there is nothing to generate.
+      return $this->derivatives;
+    }
+
+    // Read all field instance definitions in the source database.
+    $fields = [];
+    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 fields. Therefore, $fields will be empty and
+      // below we'll create a migration just for the node properties.
+    }
+
+    try {
+      foreach ($node_types 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;
+        }
+
+        /** @var \Drupal\migrate\Plugin\Migration $migration */
+        $migration = \Drupal::service('plugin.manager.migration')->createStubMigration($values);
+        if (isset($fields[$node_type])) {
+          foreach ($fields[$node_type] as $field_name => $info) {
+            $field_type = $info['type'];
+            try {
+              $plugin_id = $this->fieldPluginManager->getPluginIdFromFieldType($field_type, ['core' => 6], $migration);
+              if (!isset($this->fieldPluginCache[$field_type])) {
+                $this->fieldPluginCache[$field_type] = $this->fieldPluginManager->createInstance($plugin_id, ['core' => 6], $migration);
+              }
+              $this->fieldPluginCache[$field_type]
+                ->processFieldValues($migration, $field_name, $info);
+            }
+            catch (PluginNotFoundException $ex) {
+              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;
+  }
+
+}