How to convert string to array yii2

Question

I have a Product model and Product controller:

public function actionGet($id) {
    Yii::$app->response->format = Yii\web\Response::FORMAT_JSON;
    return ['product' => Product::findOne($id)];
}

In my DB, I got products.images column, there's an array with images:

["product.png", "product2.jpg"]

When I do an request to /products/get?id=1, I have a response with the string images, but I need an array with images. How to convert images to array in Product model? Thanks in advance!

Kalu · Accepted Answer · 2018-05-31 13:01:46Z

2

You can't save this ["product.png", "product2.jpg"] as an array in the DB. This is just text.

You can however save a json string rep of your array. ie:

public function beforeSave($insert)
{
    if(isset($this->images) && is_array($this->images))
      $this->images = \yii\helpers\Json::encode($this->images);
    return parent::beforeSave($insert);
}

Then you can decode this using afterFind:

public function afterFind()
{
    if(isset($this->images)
        $this->images = \yii\helpers\Json::decode($this->images);
    return parent::afterFind();
}

edited May 31, 2018 at 13:01

answered May 31, 2018 at 11:39

Kalu

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2 Comments

Alexxosipov Over a year ago

afterSave() method requires $changedAttribute array. What should I pass here?

Insane Skull Over a year ago

@Alexxosipov It will be beforeSave() not afterSave(). Change to parent::beforeSave()

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