Helper::isFieldFilterable

static function isFieldFilterable(array $field = array(), array $values = array())
{
	$id = $field['id'];
	$codeKey = 'sender_segment_filter';
	if (isset($field[$codeKey]) && $field[$codeKey] === false)
	{
		return false;
	}

	if (!isset($values[$id]) || (!$values[$id] && !is_numeric($values[$id])))
	{
		return false;
	}

	return true;
}