comment.inc in Drupal-to-Drupal data migration 7.2

Base class for migrating comments into Drupal.

File

comment.inc

<?php

/**
 * @file
 * Base class for migrating comments into Drupal.
 */

/**
 * Base class for all comment migrations - handles commonalities across all
 * supported source Drupal versions.
 *
 * In addition to the arguments supported by DrupalMigration, the following
 * must be passed in the $arguments array:
 *
 * source_type - Drupal 6 content type machine name.
 * destination_type - Drupal 7 entity machine name (@todo: set automatically)
 * node_migration - The node migration machine name for source_type
 *
 * The following optional arguments may be passed:
 *
 * user_migration - Machine name of a user migration, used to establish
 *   dependencies and a sourceMigration for the uid mapping.
 * node_migration - Machine name of the parent node migration.
 * default_uid - Drupal 7 (destination) uid of the user account to use as
 *   the default.
 */
abstract class DrupalCommentMigration extends DrupalMigration {
  protected $sourceType;
  protected $destinationType;
  protected $nodeMigration;

  /**
   * @param array $arguments
   */
  public function __construct(array $arguments) {
    $this->sourceType = $arguments['source_type'];
    $this->destinationType = $arguments['destination_type'];
    if (!empty($arguments['node_migration'])) {
      $this->nodeMigration = $arguments['node_migration'];
      $this->dependencies[] = $this->nodeMigration;
    }
    if (!empty($arguments['user_migration'])) {
      $user_migration = $arguments['user_migration'];
      $this->dependencies[] = $user_migration;
    }
    parent::__construct($arguments);
    $this->sourceFields += $this->version
      ->getSourceFields('comment', 'comment_node_' . $this->sourceType);

    // Create our three main objects - source, destination, and map
    $this->source = new MigrateSourceSQL($this
      ->query($this->sourceType), $this->sourceFields, NULL, $this->sourceOptions);
    $this->destination = new MigrateDestinationComment('comment_node_' . $this->destinationType);
    $this->map = new MigrateSQLMap($this->machineName, array(
      'cid' => array(
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
        'description' => 'Source comment ID',
        'alias' => 'c',
      ),
    ), MigrateDestinationComment::getKeySchema(), $this->mapConnection);

    /**
     * Setup common mappings.
     */
    $this
      ->addSimpleMappings(array(
      'subject',
      'hostname',
      'thread',
      'name',
      'mail',
      'homepage',
    ));
    if (isset($arguments['machine_name'])) {
      $this
        ->addFieldMapping('pid', 'pid')
        ->sourceMigration($arguments['machine_name']);
    }
    else {
      $this
        ->addFieldMapping('pid', 'pid');
    }
    if (!empty($this->nodeMigration)) {
      $this
        ->addFieldMapping('nid', 'nid')
        ->sourceMigration($this->nodeMigration);
    }
    else {
      $this
        ->addFieldMapping('nid', 'nid');
    }
    if (isset($arguments['default_uid'])) {
      $default_uid = $arguments['default_uid'];
    }
    else {
      $default_uid = 0;
    }
    if (isset($user_migration)) {
      $this
        ->addFieldMapping('uid', 'uid')
        ->sourceMigration($user_migration)
        ->defaultValue($default_uid);
    }
    else {
      $this
        ->addFieldMapping('uid')
        ->defaultValue($default_uid);
    }
  }

}

Classes

Name	Description
DrupalCommentMigration	Base class for all comment migrations - handles commonalities across all supported source Drupal versions.