Category id filter to Magento 2 products collection

Question

I want to add category id filter to Magento 2 product collection but it doesn't filter the collection in required manner. I am trying in below way:

$collection = $this->_productCollectionFactory->create()->addAttributeToSelect('*')
            ->joinField('category_id', 'catalog_category_product', 'category_id', 'product_id=entity_id', null, 'left')
            ->addFieldToFilter('category_id', ['nin' => 25]);

I don't want any product from category id 25 to be included in collection.

Answer 1

You can use

addCategoriesFilter(['nin' => $categories]);

Code

$collection = $this->_productCollectionFactory->create()
$collection->addCategoriesFilter(['nin' => 25]);