/**
* Deletes the cache record(s).
*
* @param string $key Cache key name or pattern
* @param boolean $prefix_mode Enable it to clear all keys starting
* with prefix specified in $key
*/
private function remove_record($key = null, $prefix_mode = false)
{
if (!$this->db) {
return;
}
if ($this->type != 'db') {
$this->load_index();
// Remove all keys
if ($key === null) {
foreach ($this->index as $key) {
$this->delete_record($this->ckey($key));
}
$this->index = array();
} else {
if ($prefix_mode) {
foreach ($this->index as $idx => $k) {
if (strpos($k, $key) === 0) {
$this->delete_record($this->ckey($k));
unset($this->index[$idx]);
}
}
} else {
$this->delete_record($this->ckey($key));
if (($idx = array_search($key, $this->index)) !== false) {
unset($this->index[$idx]);
}
}
}
$this->index_changed = true;
return;
}
// Remove all keys (in specified cache)
if ($key === null) {
$where = " WHERE `cache_key` LIKE " . $this->db->quote($this->prefix . '.%');
} else {
if ($prefix_mode) {
$where = " WHERE `cache_key` LIKE " . $this->db->quote($this->prefix . '.' . $key . '%');
} else {
$where = " WHERE `cache_key` = " . $this->db->quote($this->prefix . '.' . $key);
}
}
$this->db->query("DELETE FROM " . $this->table . $where);
}
/**
* Deletes the cache record(s).
*
* @param string $key Cache key name or pattern
* @param boolean $prefix_mode Enable it to clear all keys starting
* with prefix specified in $key
*/
private function remove_record($key = null, $prefix_mode = false)
{
if (!$this->db) {
return;
}
if ($this->type != 'db') {
$this->load_index();
// Remove all keys
if ($key === null) {
foreach ($this->index as $key) {
$this->delete_record($key, false);
}
$this->index = array();
} else {
if ($prefix_mode) {
foreach ($this->index as $k) {
if (strpos($k, $key) === 0) {
$this->delete_record($k);
}
}
} else {
$this->delete_record($key);
}
}
return;
}
// Remove all keys (in specified cache)
if ($key === null) {
$where = " AND cache_key LIKE " . $this->db->quote($this->prefix . '.%');
} else {
if ($prefix_mode) {
$where = " AND cache_key LIKE " . $this->db->quote($this->prefix . '.' . $key . '%');
} else {
$where = " AND cache_key = " . $this->db->quote($this->prefix . '.' . $key);
}
}
$this->db->query("DELETE FROM " . $this->table . " WHERE user_id = ?" . $where, $this->userid);
}
