Issue #3080522 by paulvandenburg, JoshaHubbers: PDO exception after module upgrades

<?php

/**

 * @file

 * Installation and uninstallation functions.

 */

/**

 * Fix problem with redirect update to add status field.

 */

function dvg_domain_prefix_update_7001() {

  $domains = domain_domains();

  $tables_to_alter = array('redirect');

  foreach ($domains as $domain) {

    $tables_to_alter[] = 'domain_' . $domain['domain_id'] . '_redirect';

  }

  foreach ($tables_to_alter as $table) {

    if (db_table_exists($table) && !db_field_exists($table, 'status')) {

      db_add_field($table, 'status', array(

        'type' => 'int',

        'size' => 'small',

        'not null' => TRUE,

        'default' => 1,

        'description' => 'Boolean indicating whether the redirect is enabled (visible to non-administrators).',

      ));

      db_drop_index($table, 'source_language');

      db_add_index($table, 'status_source_language', array(

        'status',

        'source',

        'language',

      ));

    }

  }

}