ViewModeBase.php

<?php

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

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

/**
 * A base class for migrations that require view mode info.
 */
abstract class ViewModeBase extends DrupalSqlBase {
    
    /**
     * {@inheritdoc}
     */
    protected function doCount() {
        return count($this->initializeIterator());
    }
    
    /**
     * Get a list of D6 view modes.
     *
     * Drupal 6 supported the following view modes.
     * NODE_BUILD_NORMAL = 0
     * NODE_BUILD_PREVIEW = 1
     * NODE_BUILD_SEARCH_INDEX = 2
     * NODE_BUILD_SEARCH_RESULT = 3
     * NODE_BUILD_RSS = 4
     * NODE_BUILD_PRINT = 5
     * teaser
     * full
     *
     * @return array
     *   The view mode names.
     */
    public function getViewModes() {
        return [
            0,
            1,
            2,
            3,
            4,
            5,
            'teaser',
            'full',
        ];
    }

}