CakePHP find remove fields or recursive find - cakephp

Question

I'm trying to slim down my finds queries, by specifying which fields to use. I don't understand how I can specify specific fields for my HABTM fields.
This is my find:
$lastviewed = $this->Lastviewedproduct->find('all', array(
'fields' => array(
'Lastviewedproduct.id', 'Lastviewedproduct.sessionid', 'Lastviewedproduct.product_id',
'Product.id', 'Product.name', 'Product.slug', 'Product.price',
//'Category.id',
//'Mediafile.*',
),
'conditions' => array(
'Lastviewedproduct.status' => 'active',
'Lastviewedproduct.sessionid' => $this->Session->read('Companyname.sessionid'),
'Product.hidden_on_site' => 0,
'Product.visibility' => 1,
'Product.status' => 'active',
),
'order' => 'Lastviewedproduct.modified DESC',
'limit' => 5,
'recursive' => 2,
));
This is what it returns:
(int) 2 => array(
'Lastviewedproduct' => array(
'id' => '97',
'sessionid' => '14035312318244955',
'product_id' => '2'
),
'Product' => array(
'id' => '2',
'name' => 'blokhut 2',
'slug' => 'blokhut-2',
'price' => '200.00',
'Category' => array(
(int) 0 => array(
'id' => '218',
'zosomodule_id' => '25',
'user_add_id' => '0',
'user_update_id' => '0',
'created' => '2013-11-27 10:00:00',
'modified' => '2013-11-27 10:00:00',
'status' => 'active',
'visibility' => true,
'parent_id' => '2',
'shipment_id' => '1',
'name' => 'Metalen Tuinbergingen ',
'slug' => 'metalen-tuinbergingen-',
'pagetitle' => 'Metalen Tuinbergingen ',
'content' => '<p class="p1"><span class="s1">Metalen tuinbergingen zijn een praktische en kwalitatieve oplossing voor meer bergruimte in uw tuin. Wij hebben diverse merken metalen bergingen zoals </span><span class="s2">Biohort</span><span class="s1"> en </span><span class="s2">Yardmaster</span><span class="s1">. Hier hebben wij tevens ook tuinkasten en opbergboxen van.</span></p>
<p class="p1"><span class="s1"><br /></span></p>
<p class="p1"><span class="s1">Mocht u op zoek zijn naar andere varianten tuinbergingen, bekijk dan ons gehele assortiment </span><span class="s2">tuinbergingen.</span></p>',
'metatitle' => 'Metalen tuinbergingen',
'metadescription' => null,
'discountoffer' => false,
'discount_normal' => '0.00',
'discount_max' => '0.00',
'discount_ideal' => '0.00',
'cost_rembours' => '0.00',
'in_mainmenu' => true,
'hide_sidebar' => false,
'show_block' => true,
'sort_order' => '0',
'ProductsCategory' => array(
'id' => '2',
'created' => '2014-01-01 10:00:00',
'modified' => '2014-01-01 10:00:00',
'product_id' => '2',
'category_id' => '218'
)
)
),
'Mediafile' => array()
)
),
I don't want all these Category fields, but only Category.id, Category.name and Category.slug for example. How do i say that in my find? As you can see I tried adding Category.id in my fields array, but then I get an error. I read something about containable, but I didn't get that working and I don't know if that is the solution.
Thanks in advance for your help!

Answer 1

You can use ContainableBehavior for this task. You should write something like this:
1 attach behavior
permanent
class Lastviewedproduct extends AppModel {
public $actsAs = array('Containable');
....
}
on demand
$this->Lastviewedproduct->Behaviors->load('Containable');
2 specify fields
$this->Lastviewedproduct->find('all', array(
'contain' => array(
'Product' => array(
'Category' => array(
'fields' => array('id','name','slug')
),
),
'Mediafile'
)
));

Answer 2

Add field parameter with relation ship where you give relationship to Category MODEL
public $hasMany = array(
'Category' => array(
'className' => 'Category',
'fields' => array('Category.id','Category.name','Category.slug')
)
);

Answer 3

As Dimitry said above - Containable is the way to go with this:
In your Models/AppModel.php (Create it if it doesn't exist) change the call to have the following:
class AppModel extends Model {
public $actsAs = array('Containable');
}
Then you would do as Dimitry said above - this will allow you to only return the fields you want.
'recursive' => 2
will eventually cause you so much slowness that your app will be painful to use, most people set recursive = 1 in their AppModel and use containable the rest of the time.