Cakephp模型链接查询问题

Question

This are my models:

User hasmany Photos

Photo belongto User

Really simple One to many relation.

In the controller i would like to see all the Photos of one User.

$this->User->id = $id
$this->User->Photos->read()

That not working and i know that if i use

$cond=array(
    'conditions' => array('UserId =' => $id),
    'recursive' => -1 
    );
$relationsFrom = $this->User->Photos->find('all', $cond);

Can I do this query without using find with the conditions? I give the foreign key when i've linked the models. Why have I to write again? I remember that in Ruby on Rails User.Photos give me all the photos of the User.

Thanks

Answer 1

Why don't you use Containable behavior? It will select the related models for you in the way that you want. It will select the related fields based on your relationships

Answer 2

I can tell you why it works like that but not why it was designed to work like that:

The object $this->User->Photos is an instance of the Photo model class that has no special reference to the User model that references it. You can use $this->User->Photos just like you could use new Photo .

CakePHP's database layer revolves around methods that take queries encoded as arrays, translate them to SQL, and return the result as arrays of data. It does not build a query object like some ORMs do.