public function grouped_checkbox($name, $tag_value, $html_attributes = array())
{
$values = $this->get_model_data($name);
$name = substr($name, -2, 2) == '[]' ? $name : $name . '[]';
$checked = is_array($values) ? in_array($tag_value, $values) : $tag_value == $values;
$id = FormTagHelper::sanitize_id($name) . '_' . FormTagHelper::sanitize_id($tag_value);
$html_attributes = array_merge(array('id' => $id), $html_attributes);
return FormTagHelper::checkbox_tag($this->get_field_name($name), $tag_value, $checked, $html_attributes);
}
