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[yaffs-website] / web / core / modules / file / src / Plugin / migrate / process / d6 / FieldFile.php

diff --git a/web/core/modules/file/src/Plugin/migrate/process/d6/FieldFile.php b/web/core/modules/file/src/Plugin/migrate/process/d6/FieldFile.php
new file mode 100644 (file)
index 0000000..3b907a3
--- /dev/null
+++ b/web/core/modules/file/src/Plugin/migrate/process/d6/FieldFile.php
@@ -0,0 +1,92 @@
+<?php
+
+namespace Drupal\file\Plugin\migrate\process\d6;
+
+use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
+use Drupal\migrate\Plugin\MigrationInterface;
+use Drupal\migrate\MigrateExecutableInterface;
+use Drupal\migrate\Plugin\MigrateProcessInterface;
+use Drupal\migrate\ProcessPluginBase;
+use Drupal\migrate\Row;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+
+/**
+ * @MigrateProcessPlugin(
+ *   id = "d6_field_file"
+ * )
+ */
+class FieldFile extends ProcessPluginBase implements ContainerFactoryPluginInterface {
+
+  /**
+   * The migration process plugin, configured for lookups in d6_file.
+   *
+   * @var \Drupal\migrate\Plugin\MigrateProcessInterface
+   */
+  protected $migrationPlugin;
+
+  /**
+   * Constructs a FieldFile plugin instance.
+   *
+   * @param array $configuration
+   *   The plugin configuration.
+   * @param string $plugin_id
+   *   The plugin ID.
+   * @param mixed $plugin_definition
+   *   The plugin definition.
+   * @param \Drupal\migrate\Plugin\MigrationInterface $migration
+   *   The current migration.
+   * @param \Drupal\migrate\Plugin\MigrateProcessInterface $migration_plugin
+   *   An instance of the 'migration' process plugin.
+   */
+  public function __construct(array $configuration, $plugin_id, $plugin_definition, MigrationInterface $migration, MigrateProcessInterface $migration_plugin) {
+    parent::__construct($configuration, $plugin_id, $plugin_definition);
+    $this->migration = $migration;
+    $this->migrationPlugin = $migration_plugin;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition, MigrationInterface $migration = NULL) {
+    // Configure the migration process plugin to look up migrated IDs from
+    // a d6 file migration.
+    $migration_plugin_configuration = $configuration + [
+      'migration' => 'd6_file',
+      'source' => ['fid'],
+    ];
+
+    return new static(
+      $configuration,
+      $plugin_id,
+      $plugin_definition,
+      $migration,
+      $container->get('plugin.manager.migrate.process')->createInstance('migration', $migration_plugin_configuration, $migration)
+    );
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function transform($value, MigrateExecutableInterface $migrate_executable, Row $row, $destination_property) {
+    $options = unserialize($value['data']);
+
+    // Try to look up the ID of the migrated file. If one cannot be found, it
+    // means the file referenced by the current field item did not migrate for
+    // some reason -- file migration is notoriously brittle -- and we do NOT
+    // want to send invalid file references into the field system (it causes
+    // fatals), so return an empty item instead.
+    if ($fid = $this->migrationPlugin->transform($value['fid'], $migrate_executable, $row, $destination_property)) {
+      return [
+        'target_id' => $fid,
+        'display' => $value['list'],
+        'description' => isset($options['description']) ? $options['description'] : '',
+        'alt' => isset($options['alt']) ? $options['alt'] : '',
+        'title' => isset($options['title']) ? $options['title'] : '',
+      ];
+    }
+    else {
+      return [];
+    }
+  }
+
+}