Ouzo\Model::nullifyIfEmpty PHP Method

    public function nullifyIfEmpty()
    {
        $fields = func_get_args();
        foreach ($fields as $field) {
            if (isset($this->{$field}) && !is_bool($this->{$field}) && Strings::isBlank($this->{$field})) {
                $this->{$field} = null;
            }
        }
    }