class UrlAliasFixtures

class UrlAliasFixtures {

  /**
   * Create the tables required for the sample data.
   *
   * @param Drupal\Core\Database\Connection $connection
   *   The connection to use to create the tables.
   */
  public function createTables(Connection $connection) {
    $tables = $this
      ->urlAliasTableDefinition();
    $schema = $connection
      ->schema();
    foreach ($tables as $name => $table) {
      $schema
        ->dropTable($name);
      $schema
        ->createTable($name, $table);
    }
  }

  /**
   * Drop the tables used for the sample data.
   *
   * @param Drupal\Core\Database\Connection $connection
   *   The connection to use to drop the tables.
   */
  public function dropTables(Connection $connection) {
    $tables = $this
      ->urlAliasTableDefinition();
    $schema = $connection
      ->schema();
    foreach ($tables as $name => $table) {
      $schema
        ->dropTable($name);
    }
  }

  /**
   * Returns an array of URL aliases for testing.
   *
   * @return array of URL alias definitions.
   */
  public function sampleUrlAliases() {
    return array(
      array(
        'source' => 'node/1',
        'alias' => 'alias_for_node_1_en',
        'langcode' => 'en',
      ),
      array(
        'source' => 'node/2',
        'alias' => 'alias_for_node_2_en',
        'langcode' => 'en',
      ),
      array(
        'source' => 'node/1',
        'alias' => 'alias_for_node_1_fr',
        'langcode' => 'fr',
      ),
      array(
        'source' => 'node/1',
        'alias' => 'alias_for_node_1_und',
        'langcode' => 'und',
      ),
    );
  }

  /**
   * Returns the table definition for the URL alias fixtures.
   *
   * @return array
   *   Table definitions.
   */
  public function urlAliasTableDefinition() {
    $tables = array();
    module_load_install('system');
    $schema = system_schema();
    $tables['url_alias'] = $schema['url_alias'];
    $tables['key_value'] = $schema['key_value'];
    return $tables;
  }

}