How to avoid _matchingData and get a specific value instead - cakephp-3.0

Question

In the Orders Table Model I need the category ids of the products associated with the order
Model/Table/OrdersTable.php
public function updateQuantityForInventoryItems(array $orders_items): void
{
$ordersItemsIds = [];
foreach ($orders_items as $orders_item) {
array_push($ordersItemsIds, $orders_item->product_id);
}
$catIds = $this->find('ordersItemsCategories', ['ordersItemsIds' => $ordersItemsIds])->toArray();
dd($catIds);
$InventoriesTable = TableRegistry::getTableLocator()->get('Inventories');
$InventoriesTable->updateQuantityForInventoryItems('orders', $catIds);
}
public function findOrdersItemsCategories(Query $query, array $options): Query
{
$query = $this->OrdersItems->Products
->find()
->select(['Products.id','CategoriesProducts.category_id'])
->matching(
'CategoriesProducts', function (Query $q) use ($options) {
return $q->where([
'CategoriesProducts.product_id IN' => $options['ordersItemsIds'],
]);
});
return $query->hydrate(false);
}
the generated SQL query
SELECT Products.id AS `Products__id`, CategoriesProducts.category_id AS `CategoriesProducts__category_id` FROM products Products INNER JOIN categories_products CategoriesProducts ON (CategoriesProducts.product_id in (4325,3632) AND Products.id = (CategoriesProducts.product_id))
When I print out the array with dd($catIds); , I get an array with _matchingData
array:4 [▼
0 => array:2 [▼
"id" => 3632
"_matchingData" => array:1 [▼
"CategoriesProducts" => array:1 [▼
"category_id" => 10
]
]
]
1 => ...
]
how do i get category_id under id
(i have already checked that thread How to print _matchingData object value in cakephp 3 but still no success)

Answer 1

got it. i need to alias the category_id to prevent nesting
->select(['category_id' => 'CategoriesProducts.category_id'])