Using has and belongs to many not pulling has many

[jose-tog]

class Category extends MvcModel {
var $table = '{prefix}' . BMSPC_TABLE_PREFIX . 'categories';
var $display_field = 'name';
var $order = 'Category.name ASC';
var $has_many = array('Product');

}

class Product extends MvcModel {
var $table = '{prefix}' . BMSPC_TABLE_PREFIX . 'products';
var $includes = array( 'Category' );
var $display_field = 'style_name';
var $order = 'Product.style_name ASC';
var $has_and_belongs_to_many = array(
'Category' => array(
'join_table' => '{prefix}' . BMSPC_TABLE_PREFIX . 'product_categories',
'fields' => array('id', 'name')
)
);

public function after_find($object) {

}

}

I have a category, product and product_categories tables. Trying to show count of Products that belong to a Category but array of products is coming empty.