Drupal migrate content with field translation

ct_test_results.csv

ct_test_results_migration.inc

<?php
/**
 * @file
 * Implements MyFixtures
 */

class CtTestResultsMigration extends MyFixtures {

  /**
   * Implement __construct.
   */
  public function __construct(array $arguments) {

    parent::__construct($arguments);

    // Description.
    $this->description = t('Migrate Ct Test Results from CSV to Ct Test Results');

    // Mapping Table.
    $this->map = new MigrateSQLMap(
      $this->machineName,
      array(
        'id' => array(
          'type' => 'varchar',
          'length' => 255,
          'not null' => TRUE,
          'description' => 'Ct Test Results id',
        ),
      ),
      MigrateDestinationTerm::getKeySchema()
    );

    $source_file = drupal_get_path('module', 'my_migration') . '/data/ct_test_results.csv';

    $columns = array(
      array('id', 'id'),
      array('titolo_en', 'titolo_en'),
      array('titolo_it', 'titolo_it'),
      array('titolo_fr', 'titolo_fr'),
      array('txt_breve', 'txt_breve'),
      array('txt_completo', 'txt_completo'),
    );

    $this->source = new MigrateSourceCSV(
      $source_file,
      $columns,
      array(
        'header_rows' => 1,
        'delimiter' => ',',
        'enclosure' => '"',
      )
    );

    // Set destination.
    $this->destination = new MigrateDestinationNode('quiz_textual_results');

    $this->addFieldMapping('title_field', 'titolo_en');
    $this->addFieldMapping('field_quiz_text_res_testo_breve', 'txt_breve');
    $this->addFieldMapping('field_quiz_text_res_testo_breve:language')->defaultValue(array('en', 'it', 'fr', 'en-en'));
    $this->addFieldMapping('field_quiz_text_res_testo_compl', 'txt_completo');
    $this->addFieldMapping('field_quiz_text_res_testo_compl:language')->defaultValue(array('en', 'it', 'fr', 'en-en'));
    $this->addFieldMapping('field_quiz_text_res_testo_compl:format')->defaultValue('filtered_html');

    $this->addFieldMapping('uid')->defaultValue(1);
    $this->addFieldMapping('language')->defaultValue('en');
    $this->addFieldMapping('is_new')->defaultValue(TRUE);

    $this->addUnmigratedDestinations(array());
  }

  public function prepareRow($row) {
    $row->language = array('en', 'it', 'fr', 'en-en');
    $row->txt_breve = array($row->txt_breve, $row->txt_breve, $row->txt_breve, $row->txt_breve);
    $row->txt_completo = array($row->txt_completo, $row->txt_completo, $row->txt_completo, $row->txt_completo);
    return TRUE;
  }

  /**
   * Prepare fields.
   */
  public function prepare($entity, stdClass $row) {

    $entity->language = 'en';
    $entity->title_field['en'][0]['value'] = $row->titolo_en;
    $entity->title_field['en-en'][0]['value'] = $row->titolo_en;
    $entity->title_field['it'][0]['value'] = $row->titolo_it;
    $entity->title_field['fr'][0]['value'] = $row->titolo_fr;
    $entity->translations = (object) array(
      'original' => 'en',
      'data' => array(
        'en-en' => array(
          'entity_type' => 'node',
          'entity_id' => NULL,
          'language' => 'en-en',
          'source' => 'en',
          'uid' => '1',
          'status' => '1',
          'translate' => '0',
        ),
        'en' => array(
          'entity_type' => 'node',
          'entity_id' => NULL,
          'language' => 'en',
          'source' => '',
          'uid' => '1',
          'status' => '1',
          'translate' => '0',
        ),
        'it' => array(
          'entity_type' => 'node',
          'entity_id' => NULL,
          'language' => 'it',
          'source' => 'en',
          'uid' => '1',
          'status' => '1',
          'translate' => '0',
        ),
        'fr' => array(
          'entity_type' => 'node',
          'entity_id' => NULL,
          'language' => 'fr',
          'source' => 'en',
          'uid' => '1',
          'status' => '1',
          'translate' => '0',
        ),
      ),
    );
  }
}