has error in doc? i'm not sure - phalcon

Question

http://docs.phalconphp.com/en/0.6.0/reference/phql.html
Usage Example
To better explain how PHQL works consider the following example. We have two models “Cars” and “Brands”:
<?php
class Cars extends Phalcon\Mvc\Model
{
public $id;
public $name;
public $brand_id;
public $price;
public $year;
public $style;
/**
* This model is mapped to the table sample_cars
*/
public function getSource()
{
return 'sample_cars';
}
/**
* A car only has a Brand, but a Brand have many Cars
*/
public function initialize()
{
$this->belongsTo('brand_id', 'Brands', 'id');
}
}
And every Car has a Brand, so a Brand has many Cars:
<?php
class Brands extends Phalcon\Mvc\Model
{
public $id;
public $name;
/**
* The model Brands is mapped to the "sample_brands" table
*/
public function getSource()
{
return 'sample_brands';
}
/**
* A Brand can have many Cars
*/
public function initialize()
{
$this->hasMany('id', 'Brands', 'brand_id'); // here
}
}

Answer 1

You are correct. The relationship should have been hasMany on Cars not Brands. The corrected example is below
http://docs.phalconphp.com/en/latest/reference/phql.html
<?php
class Cars extends Phalcon\Mvc\Model
{
public $id;
public $name;
public $brand_id;
public $price;
public $year;
public $style;
/**
* This model is mapped to the table sample_cars
*/
public function getSource()
{
return 'sample_cars';
}
/**
* A car only has a Brand, but a Brand have many Cars
*/
public function initialize()
{
$this->belongsTo('brand_id', 'Brands', 'id');
}
}
And every Car has a Brand, so a Brand has many Cars:
<?php
class Brands extends Phalcon\Mvc\Model
{
public $id;
public $name;
/**
* The model Brands is mapped to the "sample_brands" table
*/
public function getSource()
{
return 'sample_brands';
}
/**
* A Brand can have many Cars
*/
public function initialize()
{
$this->hasMany('id', 'Cars', 'brand_id');
}
}