Automattic\WooCommerce\Internal\Utilities

ProductUtil::prime_image_caches │ public │ WC 1.0

Prime featured and gallery image attachment caches for a collection of products in a single batched query, instead of priming each product's images separately.

Method of the class: ProductUtil{}

No Hooks.

Returns

null. Nothing (null).

Usage

$ProductUtil = new ProductUtil();
$ProductUtil->prime_image_caches( $products ): void;
$products(array) (required)
Products whose image attachments should be primed. Non-product items are ignored.

ProductUtil::prime_image_caches() code WC 11.0.0

woocommerce/src/Internal/Utilities/ProductUtil.php 
public function prime_image_caches( array $products ): void {
	$products  = array_filter( $products, static fn( $product ) => $product instanceof \WC_Product );
	$featured  = array_map( static fn( $product ) => $product->get_image_id(), $products );
	$gallery   = array_map( static fn( $product ) => $product->get_gallery_image_ids(), $products );
	$image_ids = array_filter( array_unique( array_map( 'intval', array_merge( $featured, ...$gallery ) ) ) );
	if ( ! empty( $image_ids ) ) {
		// Prime caches to reduce future queries.
		_prime_post_caches( $image_ids );
	}
}