Taxonomy::rules PHP Method

    public function rules()
    {
        // NOTE: you should only define rules for those attributes that
        // will receive user inputs.
        return array(array('name,description', 'required'), array('lang', 'numerical', 'integerOnly' => true), array('name, type', 'length', 'max' => 255), array('guid', 'safe'), array('taxonomy_id, name, description, type, lang, guid', 'safe', 'on' => 'search'));
    }