yii2: get relation data in kartik editable widget - yii2

Question

I am using kartik yii2 editable extension to edit inline in gridview.
The extension is working fine.
Please refer this screen-shot link [http://awesomescreenshot.com/00753dvb73][1]
In this screen-shot the source field is a dropdown and I want the value of source instead id its id
My View
use kartik\editable\Editable;
[
'attribute'=>'source',
'format'=>'raw',
'value'=> function($data){
//$s = $data->getBacklog_source();//var_dump($s);exit;
return Editable::widget([
'name'=>'source',
'model'=>$data,
'value'=>$data->source,
'header' => 'Source',
'type'=>'primary',
'size'=> 'sm',
'format' => Editable::FORMAT_BUTTON,
'inputType' => Editable::INPUT_DROPDOWN_LIST,
'data'=>$data->getSource(), // any list of values
'options' => ['class'=>'form-control', 'prompt'=>'Select Source'],
'editableValueOptions'=>['class'=>'text-danger'],
'afterInput' => Html::hiddenInput('id',$data->id),
]);
}
],
The relation I made is:
public function getSource()
{
$source = BacklogSource::find()->all();
return ArrayHelper::map($source, 'id', 'Source');
}
public function getBacklog_complexity()
{
return $this->hasOne(BacklogComplexity::className(), [
'id' => 'complexity'
]);
}
Thanks for help in advance

Answer 1

I got the solution something like this:
[
'attribute'=>'status',
'format'=>'raw',
'value'=> function($data){
$s = BacklogStatus::findOne($data->status);
return Editable::widget([
'name'=>'status',
'model'=>$data,
'value'=>$s->Status,
'header' => 'Status',
'type'=>'primary',
'size'=> 'sm',
'format' => Editable::FORMAT_BUTTON,
'inputType' => Editable::INPUT_DROPDOWN_LIST,
'data'=>$data->getStatus(), // any list of values
'options' => ['class'=>'form-control', 'prompt'=>'Select Source'],
'editableValueOptions'=>['class'=>'text-danger'],
'afterInput' => Html::hiddenInput('id',$data->id),
]);
}
],