<?php

// $Id: update.install,v 1.4.2.2 2009/01/06 15:46:38 goba Exp $

/**

 * Implementation of hook_install().

 */

function update_install() {

  // Create cache table.

  drupal_install_schema('update');

  // Remove stale variables from update_status 5.x contrib, if any.

  _update_remove_update_status_variables();

}

/**

 * Implementation of hook_uninstall().

 */

function update_uninstall() {

  // Remove cache table.

  drupal_uninstall_schema('update');

  // Clear any variables that might be in use

  $variables = array(

    'update_check_frequency',

    'update_fetch_url',

    'update_last_check',

    'update_notification_threshold',

    'update_notify_emails',

  );

  foreach ($variables as $variable) {

    variable_del($variable);

  }

  menu_rebuild();

}

/**

 * Implementation of hook_schema().

 */

function update_schema() {

  $schema['cache_update'] = drupal_get_schema_unprocessed('system', 'cache');

  $schema['cache_update']['description'] = 'Cache table for the Update module to store information about available releases, fetched from central server.';

  return $schema;

}

/**

 * Private helper to clear out stale variables from update_status 5.x contrib.

 *

 * @see update_install()

 * @see update_update_6000()

 */

function _update_remove_update_status_variables() {

  variable_del('update_status_settings');

  variable_del('update_status_notify_emails');

  variable_del('update_status_check_frequency');

  variable_del('update_status_notification_threshold');

  variable_del('update_status_last');

  variable_del('update_status_fetch_url');

}

/**

 * Clear out stale variables from update_status.

 */

function update_update_6000() {

  _update_remove_update_status_variables();

  return array();

}