TZConvSet::sort

public function sort($property, $direction='ASC')
{
	$map = $this->{$property};
	$fn = $direction == 'ASC' ? 'asort' : 'arsort';
	$fn($map);

	$sortedModels = array();
	foreach ($map as $key => $value)
	{
		$sortedModels[$key] = $this->models[$key];
	}

	$this->models = $sortedModels;

	return $this;
}