/**
* 获取未过期的 session 总数
*
* @return int
*/
function getOnlineCount($lifetime = -1)
{
if ($this->lifeTime > 0) {
$lifetime = $this->lifeTime;
} else {
if ($lifetime <= 0) {
$lifetime = (int) ini_get('session.gc_maxlifetime');
if ($lifetime <= 0) {
$lifetime = 1440;
}
}
}
$sql = "SELECT COUNT(*) FROM {$this->tableName}";
if ($this->lifeTime > 0) {
$time = time() - $lifetime;
$sql .= " WHERE {$this->fieldActivity} >= {$time}";
}
return (int) $this->dbo->getOne($sql);
}
/**
* 根据关联表的 counterCache 选项更新统计信息
*
* @param array $row
*/
function _updateCounterCache(&$row)
{
foreach (array_keys($this->links) as $linkKey) {
$link =& $this->links[$linkKey];
/* @var $link FLEA_Db_TableLink */
if ($link->type != BELONGS_TO || !$link->enabled || !$link->counterCache) {
continue;
}
$link->init();
$f = $link->assocTDG->qfield($link->counterCache);
if (isset($row[$link->foreignKey])) {
$fkv = $this->dbo->qstr($row[$link->foreignKey]);
} else {
$pkv = $this->dbo->qstr($row[$this->primaryKey]);
$sql = "SELECT {$link->foreignKey} FROM {$this->qtableName} WHERE {$this->qpk} = {$pkv}";
$fkv = $this->dbo->getOne($sql);
}
$conditions = "{$link->qforeignKey} = {$fkv}";
if ($link->conditions) {
if (is_array($link->conditions)) {
$conditions = FLEA_Db_SqlHelper::parseConditions($link->conditions, $link->assocTDG);
if (is_array($conditions)) {
$conditions = $conditions[0];
}
} else {
$conditions =& $link->conditions;
}
if ($conditions) {
$conditions = "{$link->qforeignKey} = {$fkv} AND {$conditions}";
}
}
$sql = "UPDATE {$link->assocTDG->qtableName} SET {$f} = (SELECT COUNT(*) FROM {$this->qtableName} WHERE {$conditions}) WHERE {$link->assocTDG->qpk} = {$fkv}";
$this->dbo->execute($sql);
}
}