/**
* Reads cache entry.
*
* @param string $key Cache key name
* @param boolean $nostore Enable to skip in-memory store
*
* @return mixed Cached value
*/
private function read_record($key, $nostore = false)
{
if (!$this->db) {
return null;
}
if ($this->type != 'db') {
$this->load_index();
// Consistency check (#1490390)
if (!in_array($key, $this->index)) {
// we always check if the key exist in the index
// to have data in consistent state. Keeping the index consistent
// is needed for keys delete operation when we delete all keys or by prefix.
} else {
$ckey = $this->ckey($key);
if ($this->type == 'memcache') {
$data = $this->db->get($ckey);
} else {
if ($this->type == 'apc') {
$data = apc_fetch($ckey);
}
}
if ($this->debug) {
$this->debug('get', $ckey, $data);
}
}
if ($data !== false) {
$md5sum = md5($data);
$data = $this->unserialize($data);
if ($nostore) {
return $data;
}
$this->cache_sums[$key] = $md5sum;
$this->cache[$key] = $data;
} else {
$this->cache[$key] = null;
}
} else {
$sql_result = $this->db->query("SELECT `data`, `cache_key` FROM {$this->table}" . " WHERE `cache_key` = ?", $this->prefix . '.' . $key);
if ($sql_arr = $this->db->fetch_assoc($sql_result)) {
if (strlen($sql_arr['data']) > 0) {
$md5sum = md5($sql_arr['data']);
$data = $this->unserialize($sql_arr['data']);
}
$this->db->reset();
if ($nostore) {
return $data;
}
$this->cache[$key] = $data;
$this->cache_sums[$key] = $md5sum;
} else {
$this->cache[$key] = null;
}
}
return $this->cache[$key];
}
/**
* Reads cache entry.
*
* @param string $key Cache key name
* @param boolean $nostore Enable to skip in-memory store
*
* @return mixed Cached value
*/
private function read_record($key, $nostore = false)
{
if (!$this->db) {
return null;
}
if ($this->type != 'db') {
$this->load_index();
// Consistency check (#1490390)
if (!in_array($key, $this->index)) {
// we always check if the key exist in the index
// to have data in consistent state. Keeping the index consistent
// is needed for keys delete operation when we delete all keys or by prefix.
} else {
if ($this->type == 'memcache') {
$data = $this->db->get($this->ckey($key));
} else {
if ($this->type == 'apc') {
$data = apc_fetch($this->ckey($key));
}
}
}
if ($data) {
$md5sum = md5($data);
$data = $this->unserialize($data);
if ($nostore) {
return $data;
}
$this->cache_sums[$key] = $md5sum;
$this->cache[$key] = $data;
} else {
$this->cache[$key] = null;
}
} else {
$sql_result = $this->db->limitquery("SELECT `data`, `cache_key`" . " FROM {$this->table}" . " WHERE `user_id` = ? AND `cache_key` = ?" . " ORDER BY `created` DESC", 0, 1, $this->userid, $this->prefix . '.' . $key);
if ($sql_arr = $this->db->fetch_assoc($sql_result)) {
$key = substr($sql_arr['cache_key'], strlen($this->prefix) + 1);
$md5sum = $sql_arr['data'] ? md5($sql_arr['data']) : null;
if ($sql_arr['data']) {
$data = $this->unserialize($sql_arr['data']);
}
if ($nostore) {
return $data;
}
$this->cache[$key] = $data;
$this->cache_sums[$key] = $md5sum;
} else {
$this->cache[$key] = null;
}
}
return $this->cache[$key];
}
/**
* Reads cache entry.
*
* @param string $key Cache key name
* @param boolean $nostore Enable to skip in-memory store
*
* @return mixed Cached value
*/
private function read_record($key, $nostore = false)
{
if (!$this->db) {
return null;
}
if ($this->type != 'db') {
if ($this->type == 'memcache') {
$data = $this->db->get($this->ckey($key));
} else {
if ($this->type == 'apc') {
$data = apc_fetch($this->ckey($key));
}
}
if ($data) {
$md5sum = md5($data);
$data = $this->unserialize($data);
if ($nostore) {
return $data;
}
$this->cache_sums[$key] = $md5sum;
$this->cache[$key] = $data;
} else {
$this->cache[$key] = null;
}
} else {
$sql_result = $this->db->limitquery("SELECT data, cache_key" . " FROM " . $this->table . " WHERE user_id = ?" . " AND cache_key = ?" . " ORDER BY created DESC", 0, 1, $this->userid, $this->prefix . '.' . $key);
if ($sql_arr = $this->db->fetch_assoc($sql_result)) {
$key = substr($sql_arr['cache_key'], strlen($this->prefix) + 1);
$md5sum = $sql_arr['data'] ? md5($sql_arr['data']) : null;
if ($sql_arr['data']) {
$data = $this->unserialize($sql_arr['data']);
}
if ($nostore) {
return $data;
}
$this->cache[$key] = $data;
$this->cache_sums[$key] = $md5sum;
} else {
$this->cache[$key] = null;
}
}
return $this->cache[$key];
}
/**
* Reads cache entry.
*
* @param string $key Cache key name
* @param boolean $nostore Enable to skip in-memory store
*
* @return mixed Cached value
*/
private function read_record($key, $nostore = false)
{
if (!$this->db) {
return null;
}
if ($this->type != 'db') {
if ($this->type == 'memcache') {
$data = $this->db->get($this->ckey($key));
} else {
if ($this->type == 'apc') {
$data = apc_fetch($this->ckey($key));
}
}
if ($data) {
$md5sum = md5($data);
$data = $this->unserialize($data);
if ($nostore) {
return $data;
}
$this->cache_sums[$key] = $md5sum;
$this->cache[$key] = $data;
} else {
$this->cache[$key] = null;
}
} else {
$sql_result = $this->db->limitquery("SELECT `data`, `cache_key`" . " FROM {$this->table}" . " WHERE `cache_key` = ?" . " ORDER BY `created` DESC", 0, 1, $this->prefix . '.' . $key);
if ($sql_arr = $this->db->fetch_assoc($sql_result)) {
$md5sum = $sql_arr['data'] ? md5($sql_arr['data']) : null;
if ($sql_arr['data']) {
$data = $this->unserialize($sql_arr['data']);
}
if ($nostore) {
return $data;
}
$this->cache[$key] = $data;
$this->cache_sums[$key] = $md5sum;
} else {
$this->cache[$key] = null;
}
}
return $this->cache[$key];
}
