Yii CPagination paging mixed data - php

Question

I need to render a view with mixed data in it with a pagination limit of 6 items per page.
In this case I have a Controller that renders a view and passes an array of mixed data such as an array of Catalogs and Products.
$products = new Products;
$productsCriteria = new CDbCriteria;
$catalogs = new Catalogs;
$catalogsCriteria = new CDbCriteria;
$productsCriteria->condition = "status = 1 AND category_id = :category_param";
$productsCriteria->params = array(':category_param' => $id); //$id is passed as a parameter to the action
$productsCriteria->order = "created_on DESC";
$catalogsCriteria->condition = "status = 1 AND category_id = :category_param";
$catalogsCriteria->params = array(':category_param' => $id);
$catalogsCriteria->order = "created_on DESC";
$productsCount = $products->count($productsCriteria);
$catalogsCount = $catalogs->count($catalogsCriteria);
$pages = new CPagination($productsCount + $catalogsCount);
$pages->pageSize = 6;
$pages->applyLimit($productsCriteria);
$pages->applyLimit($catalogsCriteria);
$productResult = $products->findAll($productsCriteria);
$catalogResult = $catalogs->findAll($catalogsCriteria);
$result = array_merge($productResult, $catalogResult);
$this->render('list', array('data' => $result, 'pages' => $pages, 'productsCount' => $productsCount, 'catalogsCount' => $catalogsCount));
This works as it is, but it renders 6 items of each type. It renders 6 Catalogs and then it renders 6 Products per page. What I need is that it renders all of the Catalogs first, 6 per page, regardless of how many pages it needs and then it renders all of the Products, again, 6 per page and regardless of how many pages it needs.
On another note, the Products and Catalogs are in a many to many relationship. I've also tried extracting Products the following way:
$productsCriteria->join = ", catalog_product_relation cpr WHERE status = 1 AND category_id = :category_param AND cpr.product_id != t.id";
I used the
cpr.products_id != t.id
since I need to list Products that don't belong to any Catalog.
I used join since it only appends the string to the criteria without adding any MySQL tokens like condition does.
Merging the two criteria doesn't work since they're different data models.