/**
* Delete key(s) matching a regular expression, and/or scope, and/or bundle
*
* @param integer/boolean $bundle_id
* @param string $session_id
* @param integer $site_id
* @param string $regex a regular expression
* @param integer $invalidate Delay until cached item expires (seconds)
* @return boolean
*/
function delete_matching_keys($bundle_id = FALSE, $session_id = NULL, $site_id = 1, $regex = NULL, $invalidate = 0)
{
$deleted = FALSE;
// have keys been deleted from the database?
$clear_static = TRUE;
// attempt to delete corresponding *individual* static cache files?
// Can we clear the entire static cache in one go (to minimize disk access)?
if ($this->EE->config->item('stash_static_cache_enabled') && $regex == NULL && $invalidate == 0) {
if (!$bundle_id || $this->_can_static_cache($bundle_id)) {
if (is_null($session_id) || $session_id === 'site' || $session_id === 'all') {
$this->_delete_dir('/', $site_id);
$clear_static = FALSE;
}
}
}
// clear the db
$this->db->where('site_id', $site_id);
// match a specific bundle
if ($bundle_id) {
$this->db->where('bundle_id', $bundle_id);
}
// match session_id
if (!is_null($session_id)) {
// scope supplied?
if ($session_id === 'user') {
// all user-scoped variables
$this->db->where('session_id !=', '_global');
} elseif ($session_id === 'site') {
// all site-scoped variables
$this->db->where('session_id', '_global');
} else {
// a specific user session
$this->db->where('session_id', $session_id);
}
}
// match key_name regex
if (!is_null($regex)) {
$this->db->where('key_name RLIKE ', $this->db->escape($regex), FALSE);
}
// get matching keys
$query = $this->db->select('id, site_id, key_name, key_label, session_id, bundle_id')->get('stash');
if ($query->num_rows() > 0) {
$deleted = $this->delete_cache($query->result(), $clear_static, $invalidate);
}
if ($deleted) {
// deleted sucessfully, reset the static key cache
self::$keys = array();
}
return $deleted;
}
/**
* Delete key(s) matching a regular expression, and/or scope, and/or bundle
*
* @param integer/boolean $bundle_id
* @param string $session_id
* @param integer $site_id
* @param string $regex a regular expression
* @return boolean
*/
function delete_matching_keys($bundle_id = FALSE, $session_id = NULL, $site_id = 1, $regex = NULL)
{
$deleted = FALSE;
$this->db->where('site_id', $site_id);
// match a specific bundle
if ($bundle_id) {
$this->db->where('bundle_id', $bundle_id);
}
// match session_id
if (!is_null($session_id)) {
// scope supplied?
if ($session_id === 'user') {
// all user-scoped variables
$this->db->where('session_id !=', '_global');
} elseif ($session_id === 'site') {
// all site-scoped variables
$this->db->where('session_id', '_global');
} else {
// a specific user session
$this->db->where('session_id', $session_id);
}
}
// match key_name regex
if (!is_null($regex)) {
$this->db->where('key_name RLIKE ', $this->db->escape($regex), FALSE);
// get matching keys
$query = $this->db->select('id, key_name, key_label, bundle_id, session_id')->get('stash');
if ($query->num_rows() > 0) {
$deleted = $this->delete_cache($query->result(), $site_id);
}
} elseif ($this->db->delete('stash')) {
// -------------------------------------
// 'stash_delete' hook
// -------------------------------------
if ($this->EE->extensions->active_hook('stash_delete') === TRUE) {
$this->EE->extensions->call('stash_delete', array('key_name' => FALSE, 'key_label' => FALSE, 'bundle_id' => $bundle_id, 'session_id' => $session_id, 'site_id' => $site_id));
}
// delete entire static cache for this site if bundle is 'static' or not specified
// and scope is 'site', 'all' or not specified
if (!$bundle_id || $this->_can_static_cache($bundle_id)) {
if (is_null($session_id) || $session_id === 'site' || $session_id === 'all') {
$this->_delete_dir('/', $site_id);
}
}
$deleted = TRUE;
}
if ($deleted) {
// deleted sucessfully, reset the static key cache
self::$keys = array();
}
return $deleted;
}