<?php
/**
 * @file
 * Install time hooks for user_relationship_privatemsg module.
 */

/***
 * Implements hook_schema().
 */
function user_relationship_privatemsg_schema() {
  $schema['user_relationship_privatemsg'] = array(
    'fields' => array(
      'urpid'   => array(
        'type'     => 'serial',
        'not null' => TRUE,
      ),
      'rtid'   => array(
        'type'     => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
      ),
      'author' => array(
        'type'     => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
      ),
    ),
    'primary key' => array('urpid'),
    'unique keys' => array(
      'rtid_author' => array('rtid', 'author'),
    ),
  );

  return $schema;
}