<?php

/**
 * @file
 * Defines field schema for the domain reference field.
 */

/**
 * Implements hook_field_schema().
 */
function domain_field_field_schema() {
  $schema = array(
    'columns' => array(
      'domain' => array(
        'type' => 'varchar',
        'length' => '255',
        'not null' => TRUE,
      ),
    ),
    'indexes' => array(
      'domain' => array('domain'),
    ),
    'foreign keys' => array(
      'domain' => array(
        'table' => 'domain',
        'columns' => array('domain' => 'domain'),
      ),
    ),
  );

  return $schema;
}