How to correctly transfer data from two tables (yii, active record) to the view?

Question

Yii

Interested in the correct approach to solving the following problem. Let's say I have two tables. In one list of customers, in the other list of customer orders. One-to-many relationship (one customer - many orders).
Let's say there is a view (view, view) in which you need to display data about the client and a list of his orders.
I usually do it like this:

$client = Client::model()->findByPk($id);
$orders = Order::model()->findAll('client_id = :client_id', array(':client_id' => $id);
$data['client'] = $client;
$data['orders'] = $orders;
$this->render('view_name', $data);

After that, in the view itself, it will not be difficult to display all the data.
I'm wondering if my solution is clumsy and there is a more elegant one? I assume that you can set up communication in models and get data even easier. And also worried about how clumsily I give data to the view?

Answer 1

In the customer model

public function relations()
  {
       'orders'=>array(self::BELONGS_TO,'Order','client_id'),            
  }

Usage

$client = Client::model()->findByPk($id);
$this->render('view_name', array('client'=>$client, 'orders'=>$client->orders));

something in this style?

Answer 2

$client = Client::model()->findByPk($id);
$orders = Order::model()->findAll('client_id = :client_id', array(':client_id' => $id);
$this->render('view_name', array('client'=>$client, 'orders'=>$orders));