_update_cache_clear

Versions
6
_update_cache_clear($cid = NULL)
7
_update_cache_clear($cid = NULL, $wildcard = FALSE)

Invalidates specific cached data relating to update status.

Parameters

$cid Optional cache ID of the record to clear from the private update module cache. If empty, all records will be cleared from the table.

Related topics

Private update status cache system
We specifically do NOT use the core cache API for saving the fetched data about available updates. It is vitally important that this cache is only cleared when we're populating it after successfully fetching new available update data. Usage of…

▸ 5 functions call _update_cache_clear()

▾ 5 functions call _update_cache_clear()

drush_upgrade_site_upgrade in contributions/drush/commands/core/upgrade.drush.inc
A drush command callback.
update_flush_caches in drupal/modules/update/update.module
Implementation of hook_flush_caches().
update_invalidate_cache in drupal/modules/update/update.module
Invalidates all cached data relating to update status.
update_project_cache in drupal/modules/update/update.compare.inc
Retrieve data from {cache_update} or empty the cache when necessary.
_update_refresh in drupal/modules/update/update.fetch.inc
Fetch project info via XML from a central server.

Code

drupal/modules/update/update.module, line 585

<?php
function _update_cache_clear($cid = NULL) {
  if (empty($cid)) {
    db_query("TRUNCATE TABLE {cache_update}");
  }
  else {
    db_query("DELETE FROM {cache_update} WHERE cid = '%s'", $cid);
  }
}
?>

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