Shortcut.php

<?php

namespace Drupal\shortcut\Plugin\migrate\source\d7;

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

/**
 * Drupal 7 shortcut links source from database.
 *
 * @MigrateSource(
 *   id = "d7_shortcut",
 *   source_module = "shortcut"
 * )
 */
class Shortcut extends DrupalSqlBase {
    
    /**
     * {@inheritdoc}
     */
    public function query() {
        return $this->select('menu_links', 'ml')
            ->fields('ml', [
            'mlid',
            'menu_name',
            'link_path',
            'link_title',
            'weight',
        ])
            ->condition('hidden', '0')
            ->condition('menu_name', 'shortcut-set-%', 'LIKE')
            ->orderBy('ml.mlid');
    }
    
    /**
     * {@inheritdoc}
     */
    public function fields() {
        return [
            'mlid' => $this->t("The menu.mlid primary key for this menu item (= shortcut link)."),
            'menu_name' => $this->t("The menu name (= set name) for this shortcut link."),
            'link_path' => $this->t("The link for this shortcut."),
            'link_title' => $this->t("The title for this shortcut."),
            'weight' => $this->t("The weight for this shortcut"),
        ];
    }
    
    /**
     * {@inheritdoc}
     */
    public function getIds() {
        $ids['mlid']['type'] = 'integer';
        return $ids;
    }

}