AggregatorItem.php

<?php

namespace Drupal\aggregator\Plugin\migrate\source;

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

/**
 * Drupal aggregator item source from database.
 *
 * @MigrateSource(
 *   id = "aggregator_item",
 *   source_module = "aggregator"
 * )
 */
class AggregatorItem extends DrupalSqlBase {
    
    /**
     * {@inheritdoc}
     */
    public function query() {
        return $this->select('aggregator_item', 'ai')
            ->fields('ai')
            ->orderBy('ai.iid');
    }
    
    /**
     * {@inheritdoc}
     */
    public function fields() {
        return [
            'iid' => $this->t('Primary Key: Unique ID for feed item.'),
            'fid' => $this->t('The {aggregator_feed}.fid to which this item belongs.'),
            'title' => $this->t('Title of the feed item.'),
            'link' => $this->t('Link to the feed item.'),
            'author' => $this->t('Author of the feed item.'),
            'description' => $this->t('Body of the feed item.'),
            'timestamp' => $this->t('Post date of feed item, as a Unix timestamp.'),
            'guid' => $this->t('Unique identifier for the feed item.'),
        ];
    }
    
    /**
     * {@inheritdoc}
     */
    public function getIds() {
        $ids['iid']['type'] = 'integer';
        return $ids;
    }

}