ImageCachePreset.php

<?php

namespace Drupal\image\Plugin\migrate\source\d6;

use Drupal\migrate_drupal\Plugin\migrate\source\DrupalSqlBase;
use Drupal\migrate\Row;

/**
 * Drupal 6 imagecache presets source from database.
 *
 * For available configuration keys, refer to the parent classes.
 *
 * @see \Drupal\migrate\Plugin\migrate\source\SqlBase
 * @see \Drupal\migrate\Plugin\migrate\source\SourcePluginBase
 *
 * @MigrateSource(
 *   id = "d6_imagecache_presets",
 *   source_module = "imagecache"
 * )
 */
class ImageCachePreset extends DrupalSqlBase {
  
  /**
   * {@inheritdoc}
   */
  public function query() {
    $query = $this->select('imagecache_preset', 'icp')
      ->fields('icp');
    return $query;
  }
  
  /**
   * {@inheritdoc}
   */
  public function fields() {
    $fields = [
      'presetid' => $this->t('Preset ID'),
      'presetname' => $this->t('Preset Name'),
    ];
    return $fields;
  }
  
  /**
   * {@inheritdoc}
   */
  public function getIds() {
    $ids['presetid']['type'] = 'integer';
    return $ids;
  }
  
  /**
   * {@inheritdoc}
   */
  public function prepareRow(Row $row) {
    $actions = [];
    $results = $this->select('imagecache_action', 'ica')
      ->fields('ica')
      ->condition('presetid', $row->getSourceProperty('presetid'))
      ->execute();
    foreach ($results as $key => $result) {
      $actions[$key] = $result;
      $actions[$key]['data'] = unserialize($result['data']);
    }
    $row->setSourceProperty('actions', $actions);
    return parent::prepareRow($row);
  }

}