Yii2 ActiveRecord cache

Question

How to use ActiveRecotd cache for Yii 2? I did\'t find any examples in official docs. In Google I found 2 examples, first is:

$db = self::getDb();
$object =          


        

Answer 1

I too am having trouble with this. Here's my workaround for the time being for a hasOne() relationship.

public function getGroup()
{
    if(isset(static::$_getGroup[$this->id])) {
        return static::$_getGroup[$this->id];
    }
    $Group = $this->hasOne(BillChargesGroup::className(), ['id' => 'group_id'])->one();
    static::$_getGroup[$this->id] = $Group;
    return $Group;
}

I only want to cache data for the current request, so this works. However because I'm using ->one(); it does not return the ActiveQuery object if we call $model->getGroup() (which I found is good for extending queries)

Unfortunately if I do return the ActiveQuery object, Yii2 does some "magic" on it and always does a SELECT * which I can't control.