cakephp - cake - Confused about how to count data -

i know question simple. fail find in google. i'm new cake afterall.

for example have 2 model: product , category.

in product index want show list of available categories , amount of products in category. below:

food (10) beverages (7) ... 

i looped available categories, not sure how count it. below loop:

<?php foreach($categories $c): ?>     <li> ... <?php echo $this->$c->product->find('count') ?> </li> <?php endforeach; ?> // ... part echo-ing category name 

i tried many variations , keep getting error arrayhelper not found or producthelper not found

anyone have solution?

thanks

edit

this productcontroller code before added foreach loop suggested.

public function index() {             //the first 2 lines default cake bake         $this->product->recursive = 0;         $this->set('products', $this->paginate());         $categories = $this->product->category->find('all');         $this->set('categories', $categories);     } 

you trying call model in view file, instead add product count array controller itself, like, example code be: in controller:

$categories = $this->product->category->find('all',array('recursive'=>-1)); foreach($categories $key => $category){   $categories[$key]['productcount'] = $this->product->find('count',    array(      'conditions'=>array('product.category_id'=>$category['category']['id'])    )   ); } 

where productcount can replaced name of product