FieldOptionTranslation.php

<?php

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

// cspell:ignore objectid objectindex plid textgroup

/**
 * Drupal 7 i18n field option label 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 = "d7_field_option_translation",
 *   source_module = "i18n_field"
 * )
 */
class FieldOptionTranslation extends Field {
  
  /**
   * {@inheritdoc}
   */
  public function query() {
    $query = parent::query();
    $query->leftJoin('i18n_string', 'i18n', '[i18n].[type] = [fc].[field_name]');
    $query->innerJoin('locales_target', 'lt', '[lt].[lid] = [i18n].[lid]');
    $query->condition('i18n.textgroup', 'field')
      ->condition('objectid', '#allowed_values');
    // Add all i18n and locales_target fields.
    $query->fields('i18n', [
      // All table fields except lid and type.
'textgroup',
      'context',
      'objectid',
      'property',
      'objectindex',
      'format',
    ])
      ->fields('lt');
    $query->addField('fci', 'bundle');
    $query->addField('i18n', 'lid', 'i18n_lid');
    $query->addField('i18n', 'type', 'i18n_type');
    $query->orderBy('i18n.lid');
    return $query;
  }
  
  /**
   * {@inheritdoc}
   */
  public function fields() {
    $fields = [
      'bundle' => $this->t('Entity bundle'),
      'lid' => $this->t('Source string ID'),
      'textgroup' => $this->t('A module defined group of translations'),
      'context' => $this->t('Full string ID'),
      'objectid' => $this->t('Object ID'),
      'property' => $this->t('Object property for this string'),
      'objectindex' => $this->t('Integer value of Object ID'),
      'format' => $this->t('The input format used by this string'),
      'translation' => $this->t('Translation of the option'),
      'language' => $this->t('Language code'),
      'plid' => $this->t('Parent lid'),
      'plural' => $this->t('Plural index number in case of plural strings'),
      'i18n_status' => $this->t('A boolean indicating whether this translation needs to be updated'),
    ];
    return parent::fields() + $fields;
  }
  
  /**
   * {@inheritdoc}
   */
  public function getIds() {
    return parent::getIds() + [
      'language' => [
        'type' => 'string',
      ],
      'property' => [
        'type' => 'string',
      ],
      'bundle' => [
        'type' => 'string',
      ],
    ];
  }

}