Re: How to update data in several models in a single Web Service?

Your statement "the problem with CakePHP is that it only allows a controller to access its own corresponding model's data" is just flat wrong. You can access additional models in a controller by simply adding the model name to the $uses variable in the controller class.

For example, the following allows you to access both the Recipe and User models in the Recipe controller (you can find more in the book at http://book.cakephp.org/2.0/en/controllers.html):

class RecipesController extends AppController {

    public $uses = array('Recipe', 'User');

    .

    public function someAction() {

    .

       $user = $this->User->find('first', array('conditions'=>array('id', $userId)));

    .

    }

}

You can also achieve what you wish by using model associations. See:

 http://book.cakephp.org/2.0/en/models/associations-linking-models-together.html

In your Table1 model class,  you define a $hasMany association with Table2, and in your Table2 model you define a $hasMany association with Table3. You can then access the "lower level" associations by doing a find() on Table1. 

You should also look at the Containable behavior. It makes it easy to define which models are retrieved when a find() is done. Containable is so handy I have put it in my AppModel class so all models have that behavior. See:

http://book.cakephp.org/2.0/en/core-libraries/behaviors/containable.html

All of what you need to do this is described in the book and the examples. Study them. Try them. If you then have trouble, we'll answer your questions.

Ken

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