/**
* Initialise the current iteration pointer
*/
protected function initCurrent()
{
$row = $this->res->current();
if ($row) {
$this->current = $this->newItem($row);
} else {
$this->current = false;
}
}
function rewind()
{
$this->res->rewind();
$this->key = 0;
$this->setCurrent($this->res->current());
}