drupal/modules/user/user.install

<?php
// $Id$

/**
 * Implementation of hook_schema().
 */
function user_schema() {
  $schema['authmap'] = array(
    'description' => t('Stores distributed authentication mapping.'),
    'fields' => array(
      'aid' => array(
        'description' => t('Primary Key: Unique authmap ID.'),
        'type' => 'serial',
        'unsigned' => TRUE,
        'not null' => TRUE,
      ),
      'uid' => array(
        'type' => 'int',
        'not null' => TRUE,
        'default' => 0,
        'description' => t("User's {users}.uid."),
      ),
      'authname' => array(
        'type' => 'varchar',
        'length' => 128,
        'not null' => TRUE,
        'default' => '',
        'description' => t('Unique authentication name.'),
      ),
      'module' => array(
        'type' => 'varchar',
        'length' => 128,
        'not null' => TRUE,
        'default' => '',
        'description' => t('Module which is controlling the authentication.'),
      ),
    ),
    'unique keys' => array(
      'authname' => array('authname'),
    ),
    'primary key' => array('aid'),
  );

  $schema['role_permission'] = array(
    'description' => t('Stores the permissions assigned to user roles.'),
    'fields' => array(
      'rid' => array(
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
        'description' => t('Foreign Key: {role}.rid.'),
      ),
      'permission' => array(
        'type' => 'varchar',
        'length' => 64,
        'not null' => TRUE,
        'default' => '',
        'description' => t('A single permission granted to the role identified by rid.'),
      ),
    ),
    'primary key' => array('rid', 'permission'),
    'indexes' => array(
      'permission' => array('permission'),
    ),
  );

  $schema['role'] = array(
    'description' => t('Stores user roles.'),
    'fields' => array(
      'rid' => array(
        'type' => 'serial',
        'unsigned' => TRUE,
        'not null' => TRUE,
        'description' => t('Primary Key: Unique role ID.'),
      ),
      'name' => array(
        'type' => 'varchar',
        'length' => 64,
        'not null' => TRUE,
        'default' => '',
        'description' => t('Unique role name.'),
      ),
    ),
    'unique keys' => array(
      'name' => array('name'),
    ),
    'primary key' => array('rid'),
  );

  $schema['users'] = array(
    'description' => t('Stores user data.'),
    'fields' => array(
      'uid' => array(
        'type' => 'serial',
        'unsigned' => TRUE,
        'not null' => TRUE,
        'description' => t('Primary Key: Unique user ID.'),
      ),
      'name' => array(
        'type' => 'varchar',
        'length' => 60,
        'not null' => TRUE,
        'default' => '',
        'description' => t('Unique user name.'),
      ),
      'pass' => array(
        'type' => 'varchar',
        'length' => 128,
        'not null' => TRUE,
        'default' => '',
        'description' => t("User's password (hashed)."),
      ),
      'mail' => array(
        'type' => 'varchar',
        'length' => 64,
        'not null' => FALSE,
        'default' => '',
        'description' => t("User's email address."),
      ),
      'theme' => array(
        'type' => 'varchar',
        'length' => 255,
        'not null' => TRUE,
        'default' => '',
        'description' => t("User's default theme."),
      ),
      'signature' => array(
        'type' => 'varchar',
        'length' => 255,
        'not null' => TRUE,
        'default' => '',
        'description' => t("User's signature."),
      ),
      'created' => array(
        'type' => 'int',
        'not null' => TRUE,
        'default' => 0,
        'description' => t('Timestamp for when user was created.'),
      ),
      'access' => array(
        'type' => 'int',
        'not null' => TRUE,
        'default' => 0,
        'description' => t('Timestamp for previous time user accessed the site.'),
      ),
      'login' => array(
        'type' => 'int',
        'not null' => TRUE,
        'default' => 0,
        'description' => t("Timestamp for user's last login."),
      ),
      'status' => array(
        'type' => 'int',
        'not null' => TRUE,
        'default' => 0,
        'size' => 'tiny',
        'description' => t('Whether the user is active(1) or blocked(0).'),
      ),
      'timezone' => array(
        'type' => 'varchar',
        'length' => 8,
        'not null' => FALSE,
        'description' => t("User's timezone."),
      ),
      'language' => array(
        'type' => 'varchar',
        'length' => 12,
        'not null' => TRUE,
        'default' => '',
        'description' => t("User's default language."),
      ),
      'picture' => array(
        'type' => 'varchar',
        'length' => 255,
        'not null' => TRUE,
        'default' => '',
        'description' => t("Path to the user's uploaded picture."),
      ),
      'init' => array(
        'type' => 'varchar',
        'length' => 64,
        'not null' => FALSE,
        'default' => '',
        'description' => t('Email address used for initial account creation.'),
      ),
      'data' => array(
        'type' => 'text',
        'not null' => FALSE,
        'size' => 'big',
        'serialize' => TRUE,
        'description' => t('A serialized array of name value pairs that are related to the user. Any form values posted during user edit are stored and are loaded into the $user object during user_load(). Use of this field is discouraged and it will likely disappear in a future version of Drupal.'),
      ),
    ),
    'indexes' => array(
      'access' => array('access'),
      'created' => array('created'),
      'mail' => array('mail'),
    ),
    'unique keys' => array(
      'name' => array('name'),
    ),
    'primary key' => array('uid'),
  );

  $schema['users_roles'] = array(
    'description' => t('Maps users to roles.'),
    'fields' => array(
      'uid' => array(
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
        'default' => 0,
        'description' => t('Primary Key: {users}.uid for user.'),
      ),
      'rid' => array(
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
        'default' => 0,
        'description' => t('Primary Key: {role}.rid for role.'),
      ),
    ),
    'primary key' => array('uid', 'rid'),
    'indexes' => array(
      'rid' => array('rid'),
    ),
  );

  return $schema;
}

/**
 * @defgroup user-updates-6.x-to-7.x User updates from 6.x to 7.x
 * @{
 */

/**
 * Increase the length of the password field to accommodate better hashes.
 *
 * Also re-hashes all current passwords to improve security. This may be a
 * lengthy process, and is performed batch-wise.
 */
function user_update_7000(&$sandbox) {
  $ret = array('#finished' => 0);
  // Lower than DRUPAL_HASH_COUNT to make the update run at a reasonable speed.
  $hash_count_log2 = 11;
  // Multi-part update.
  if (!isset($sandbox['user_from'])) {
    db_change_field($ret, 'users', 'pass', 'pass', array('type' => 'varchar', 'length' => 128, 'not null' => TRUE, 'default' => ''));
    $sandbox['user_from'] = 0;
    $sandbox['user_count'] = db_result(db_query("SELECT COUNT(uid) FROM {users}"));
  }
  else {
    require_once DRUPAL_ROOT . '/' . variable_get('password_inc', 'includes/password.inc');
    //  Hash again all current hashed passwords.
    $has_rows = FALSE;
    // Update this many per page load.
    $count = 1000;
    $result = db_query_range("SELECT uid, pass FROM {users} WHERE uid > 0 ORDER BY uid", $sandbox['user_from'], $count);
    while ($account = db_fetch_array($result)) {
       $has_rows = TRUE;
       $new_hash = user_hash_password($account['pass'], $hash_count_log2);
       if ($new_hash) {
         // Indicate an updated password.
         $new_hash  = 'U' . $new_hash;
         db_query("UPDATE {users} SET pass = '%s' WHERE uid = %d", $new_hash, $account['uid']);
       }
    }
    $ret['#finished'] = $sandbox['user_from']/$sandbox['user_count'];
    $sandbox['user_from'] += $count;
    if (!$has_rows) {
      $ret['#finished'] = 1;
      $ret[] = array('success' => TRUE, 'query' => "UPDATE {users} SET pass = 'U' . user_hash_password(pass) WHERE uid > 0");
    }
  }
  return $ret;
}

/**
 * Remove the 'threshold', 'mode' and 'sort' columns from the {user} table.
 *
 * These fields were previously used to store per-user comment settings.
 */

function user_update_7001() {
  $ret = array();
  db_drop_field($ret, 'users', 'threshold');
  db_drop_field($ret, 'users', 'mode');
  db_drop_field($ret, 'users', 'sort');

  return $ret;
}

/**
 * @} End of "defgroup user-updates-6.x-to-7.x"
 * The next series of updates should start at 8000.
 */