/**
* {@inheritdoc}
*/
public function rewind()
{
if (null === $this->stmt) {
$this->stmt = $this->prepare($this->sql, $this->params);
}
if (0 !== $this->key) {
$this->stmt->execute();
$this->data = $this->stmt->fetch(\PDO::FETCH_ASSOC);
$this->key = 0;
}
}