ModelCode::validateConnectionId PHP Method

    public function validateConnectionId($attribute, $params)
    {
        if (Yii::app()->hasComponent($this->connectionId) === false || !Yii::app()->getComponent($this->connectionId) instanceof CDbConnection) {
            $this->addError('connectionId', 'An active "' . $this->connectionId . '" connection is required to run this generator.');
        }
    }