/**
* Destruct.
*/
public function __destruct()
{
if (!self::$dbo) {
return;
}
static::$debug or self::$dbo->setQuery('DROP DATABASE IF EXISTS ' . self::$dbo->quoteName(static::$dbname))->execute();
self::$dbo = null;
}
/**
* gc
*
* @param string $past
*
* @return bool
*/
public function gc($past)
{
$query = $this->db->getQuery(true);
$query->delete($this->db->quoteName($this->options['table']))->where($this->db->quoteName($this->options['time_col']) . ' < ' . $this->db->quote((int) $past));
// Remove expired sessions from the database.
$this->db->setQuery($query);
return (bool) $this->db->execute();
}
/**
* getFilterFields
*
* @return array
*/
public function getSelectFields()
{
$fields = array();
$i = 0;
foreach ($this->tables as $alias => $table) {
$columns = $this->db->getTable($table['name'])->getColumns();
foreach ($columns as $column) {
$prefix = $table['prefix'];
if ($i === 0) {
$prefix = $prefix === null ? false : true;
} else {
$prefix = $prefix === null ? true : false;
}
if ($prefix === true) {
$fields[] = $this->db->quoteName("{$alias}.{$column} AS {$alias}_{$column}");
} else {
$fields[] = $this->db->quoteName("{$alias}.{$column} AS {$column}");
}
}
$i++;
}
return $fields;
}
/**
* Quick quote name.
*
* @param string $value
*
* @return mixed
*/
public function qn($value)
{
return $this->db->quoteName($value);
}
