public function build($string = '', $groupSeparator = ',', $viewSeparator = ':')
    {
        // Clear options data
        $this->options = array();

        // Split string into groups and iterate them
        foreach (explode($groupSeparator, $string) as $group) {
            // Split group into view -> value
            $group = explode($viewSeparator, $group);

            // Get value
            $value = $group[0];

            // Get view or set value
            $view = isset($group[1]) ? $group[1] : $group[0];

            // Add option
            $this->options[$value] = $view;
        }

        // Generate options html
        $optionsHTML = '';
        foreach ($this->options as $k => $v) {
            $optionsHTML .= '<option value="' . $k . '"' .
                ($v == $this->value() ? ' selected' : '') . '>' . $v . '</option>';
        }
        // Save select HTML
        $this->optionsHTML = $optionsHTML;

//        // Chaining
//        return $this;
    }