Problem In \yii\jui\datepicker

Yii 2.0 General Discussions
1

I need get some code:


$('#date').datepicker({ beforeShowDay: available });

but when I use:


\yii\jui\DatePicker::widget([

         'language' => 'ru',

         'model' => new QualityScoreParsers(),

         'attribute' => 'date',

         'clientOptions' => [

             'dateFormat' => 'yy-mm-dd',

         ],

     ]);

I get


 "beforeShowDay": "available"

and it generate jquery error.

How can I get code without quotes ?