Drupal → Добавляем функции экспорта/импорта для сущностей, созданных с помощью Entity API

/**
 * Implementation of hook_schema().
 */
function mymodule_schema() {
  $schema['myentity'] = array(
    'fields' => array(
      ...
      'status' => array(
        'type' => 'int',
        'not null' => TRUE,
        'default' => 0x01,
        'size' => 'tiny',
        'description' => 'The exportable status of the entity.',
      ),
      'module' => array(
        'type' => 'varchar',
        'length' => 255,
        'not null' => FALSE,
        'description' => 'The name of the providing module if the entity has been defined in code.',
      ),
    ),
  );
  return $schema;
}

/**
 * Implements hook_entity_info()
 */
function mymodule_entity_info() {
  return array(
    'myentity' => array(
      ...
      'exportable' => TRUE,
    ),
  );
}