DrupalDatabaseCache::isValidBin
function DrupalDatabaseCache::isValidBin
DrupalDatabaseCache::isValidBin()
Checks if $this->bin represents a valid cache table.
This check is required to ensure that non-cache tables are not truncated accidentally when calling cache_clear_all().
Return value
boolean
File
- includes/cache.inc, line 568
- Functions and interfaces for cache handling.
Class
- DrupalDatabaseCache
- Defines a default cache implementation.
Code
function isValidBin() { if ($this->bin == 'cache' || substr($this->bin, 0, 6) == 'cache_') { // Skip schema check for bins with standard table names. return TRUE; } // These fields are required for any cache table. $fields = array('cid', 'data', 'expire', 'created', 'serialized'); // Load the table schema. $schema = drupal_get_schema($this->bin); // Confirm that all fields are present. return isset($schema['fields']) && !array_diff($fields, array_keys($schema['fields'])); }
© 2001–2016 by the original authors
Licensed under the GNU General Public License, version 2 and later.
Drupal is a registered trademark of Dries Buytaert.
https://api.drupal.org/api/drupal/includes!cache.inc/function/DrupalDatabaseCache::isValidBin/7.x