如何从Db输出原始JSON

Question

I'm using common Yii2 ActiveController REST implementaion:

class ResultController extends ActiveController    
{
    public $modelClass = 'app\models\Result';
    public function actionResultList($id)
    {
        /* @var $modelClass \yii\db\BaseActiveRecord */
        $modelClass = $this->modelClass;

        return new ActiveDataProvider...

It works all good for me, except one feature - I've got some JSON stored in my Result->rawJson model as string. When I'm outputting it through this controller it gets escaped with slashes, and angular on frontend treats it as a string. The question is how to tell serializer not to serialize several model fields and pass them 'as is'.

I found only this dirty hack to do it, i've added afterFind in my model class:

public function afterFind()
{
    $this->rawJson= json_decode($this->rawJson);
}

I'll appreciate any help on this, thanks in advance.

Answer 1

I suggest you leave the original attribute untouched and create a new attribute with a getter-setter pair. Assuming that your original attribute is called rawJson:

public function getProcessedJson()
{
    return json_decode($this->rawJson);
}

public function setProcessedJson($value)
{
    $this->rawJson = json_encode($value);
}

Then just add processedJson to your fields() method, and you're good to go.