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ðŸ“„ AbstractAddressSchema.php(10.46 KB)
ðŸ“„ AbstractSchema.php(12.83 KB)
ðŸ“„ BatchSchema.php(427 B)
ðŸ“„ BillingAddressSchema.php(4.46 KB)
ðŸ“„ CartCouponSchema.php(3.19 KB)
ðŸ“„ CartExtensionsSchema.php(2.21 KB)
ðŸ“„ CartFeeSchema.php(2.12 KB)
ðŸ“„ CartItemSchema.php(7.56 KB)
ðŸ“„ CartSchema.php(16.22 KB)
ðŸ“„ CartShippingRateSchema.php(11.37 KB)
ðŸ“„ CheckoutOrderSchema.php(752 B)
ðŸ“„ CheckoutSchema.php(14.9 KB)
ðŸ“„ ErrorSchema.php(1.12 KB)
ðŸ“„ ImageAttachmentSchema.php(2.55 KB)
ðŸ“„ ItemSchema.php(11 KB)
ðŸ“„ OrderCouponSchema.php(2.41 KB)
ðŸ“„ OrderFeeSchema.php(2.2 KB)
ðŸ“„ OrderItemSchema.php(2.79 KB)
ðŸ“„ OrderSchema.php(12.74 KB)
ðŸ“„ PatternsSchema.php(673 B)
ðŸ“„ ProductAttributeSchema.php(2.5 KB)
ðŸ“„ ProductBrandSchema.php(3.49 KB)
ðŸ“„ ProductCategorySchema.php(3.5 KB)
ðŸ“„ ProductCollectionDataSchema.php(4.18 KB)
ðŸ“„ ProductReviewSchema.php(6.12 KB)
ðŸ“„ ProductSchema.php(32.48 KB)
ðŸ“„ ShippingAddressSchema.php(2.84 KB)
ðŸ“„ TermSchema.php(2.15 KB)

Editing: ProductSchema.php

<?php
namespace Automattic\WooCommerce\StoreApi\Schemas\V1;

use Automattic\WooCommerce\Enums\ProductType;
use Automattic\WooCommerce\StoreApi\SchemaController;
use Automattic\WooCommerce\StoreApi\Schemas\ExtendSchema;
use Automattic\WooCommerce\StoreApi\Utilities\QuantityLimits;
use Automattic\WooCommerce\Blocks\Utils\ProductAvailabilityUtils;
use Automattic\WooCommerce\Enums\ProductStockStatus;

/**
 * ProductSchema class.
 */
class ProductSchema extends AbstractSchema {
	/**
	 * The schema item name.
	 *
	 * @var string
	 */
	protected $title = 'product';

/**
	 * The schema item identifier.
	 *
	 * @var string
	 */
	const IDENTIFIER = 'product';

/**
	 * Image attachment schema instance.
	 *
	 * @var ImageAttachmentSchema
	 */
	protected $image_attachment_schema;

/**
	 * Constructor.
	 *
	 * @param ExtendSchema     $extend Rest Extending instance.
	 * @param SchemaController $controller Schema Controller instance.
	 */
	public function __construct( ExtendSchema $extend, SchemaController $controller ) {
		parent::__construct( $extend, $controller );
		$this->image_attachment_schema = $this->controller->get( ImageAttachmentSchema::IDENTIFIER );
	}

/**
	 * Product schema properties.
	 *
	 * @return array
	 */
	public function get_properties() {
		return [
			'id'                  => [
				'description' => __( 'Unique identifier for the resource.', 'woocommerce' ),
				'type'        => 'integer',
				'context'     => [ 'view', 'edit' ],
				'readonly'    => true,
			],
			'name'                => [
				'description' => __( 'Product name.', 'woocommerce' ),
				'type'        => 'string',
				'context'     => [ 'view', 'edit' ],
			],
			'slug'                => [
				'description' => __( 'Product slug.', 'woocommerce' ),
				'type'        => 'string',
				'context'     => [ 'view', 'edit' ],
			],
			'parent'              => [
				'description' => __( 'ID of the parent product, if applicable.', 'woocommerce' ),
				'type'        => 'integer',
				'context'     => [ 'view', 'edit' ],
				'readonly'    => true,
			],
			'type'                => [
				'description' => __( 'Product type.', 'woocommerce' ),
				'type'        => 'string',
				'context'     => [ 'view', 'edit' ],
				'readonly'    => true,
			],
			'variation'           => [
				'description' => __( 'Product variation attributes, if applicable.', 'woocommerce' ),
				'type'        => 'string',
				'context'     => [ 'view', 'edit' ],
			],
			'permalink'           => [
				'description' => __( 'Product URL.', 'woocommerce' ),
				'type'        => 'string',
				'format'      => 'uri',
				'context'     => [ 'view', 'edit' ],
				'readonly'    => true,
			],
			'short_description'   => [
				'description' => __( 'Product short description in HTML format.', 'woocommerce' ),
				'type'        => 'string',
				'context'     => [ 'view', 'edit' ],
			],
			'description'         => [
				'description' => __( 'Product full description in HTML format.', 'woocommerce' ),
				'type'        => 'string',
				'context'     => [ 'view', 'edit' ],
			],
			'on_sale'             => [
				'description' => __( 'Is the product on sale?', 'woocommerce' ),
				'type'        => 'boolean',
				'context'     => [ 'view', 'edit' ],
				'readonly'    => true,
			],
			'sku'                 => [
				'description' => __( 'Unique identifier.', 'woocommerce' ),
				'type'        => 'string',
				'context'     => [ 'view', 'edit' ],
			],
			'prices'              => [
				'description' => __( 'Price data provided using the smallest unit of the currency.', 'woocommerce' ),
				'type'        => 'object',
				'context'     => [ 'view', 'edit' ],
				'readonly'    => true,
				'properties'  => array_merge(
					$this->get_store_currency_properties(),
					[
						'price'         => [
							'description' => __( 'Current product price.', 'woocommerce' ),
							'type'        => 'string',
							'context'     => [ 'view', 'edit' ],
							'readonly'    => true,
						],
						'regular_price' => [
							'description' => __( 'Regular product price.', 'woocommerce' ),
							'type'        => 'string',
							'context'     => [ 'view', 'edit' ],
							'readonly'    => true,
						],
						'sale_price'    => [
							'description' => __( 'Sale product price, if applicable.', 'woocommerce' ),
							'type'        => 'string',
							'context'     => [ 'view', 'edit' ],
							'readonly'    => true,
						],
						'price_range'   => [
							'description' => __( 'Price range, if applicable.', 'woocommerce' ),
							'type'        => [ 'object', 'null' ],
							'context'     => [ 'view', 'edit' ],
							'readonly'    => true,
							'properties'  => [
								'min_amount' => [
									'description' => __( 'Price amount.', 'woocommerce' ),
									'type'        => 'string',
									'context'     => [ 'view', 'edit' ],
									'readonly'    => true,
								],
								'max_amount' => [
									'description' => __( 'Price amount.', 'woocommerce' ),
									'type'        => 'string',
									'context'     => [ 'view', 'edit' ],
									'readonly'    => true,
								],
							],
						],
					]
				),
			],
			'price_html'          => array(
				'description' => __( 'Price string formatted as HTML.', 'woocommerce' ),
				'type'        => 'string',
				'context'     => array( 'view', 'edit' ),
				'readonly'    => true,
			),
			'average_rating'      => [
				'description' => __( 'Reviews average rating.', 'woocommerce' ),
				'type'        => 'string',
				'context'     => [ 'view', 'edit' ],
				'readonly'    => true,
			],
			'review_count'        => [
				'description' => __( 'Amount of reviews that the product has.', 'woocommerce' ),
				'type'        => 'integer',
				'context'     => [ 'view', 'edit' ],
				'readonly'    => true,
			],
			'images'              => [
				'description' => __( 'List of images.', 'woocommerce' ),
				'type'        => 'array',
				'context'     => [ 'view', 'edit' ],
				'items'       => [
					'type'       => 'object',
					'properties' => $this->image_attachment_schema->get_properties(),
				],
			],
			'categories'          => [
				'description' => __( 'List of categories, if applicable.', 'woocommerce' ),
				'type'        => 'array',
				'context'     => [ 'view', 'edit' ],
				'items'       => [
					'type'       => 'object',
					'properties' => [
						'id'   => [
							'description' => __( 'Category ID', 'woocommerce' ),
							'type'        => 'number',
							'context'     => [ 'view', 'edit' ],
							'readonly'    => true,
						],
						'name' => [
							'description' => __( 'Category name', 'woocommerce' ),
							'type'        => 'string',
							'context'     => [ 'view', 'edit' ],
							'readonly'    => true,
						],
						'slug' => [
							'description' => __( 'Category slug', 'woocommerce' ),
							'type'        => 'string',
							'context'     => [ 'view', 'edit' ],
							'readonly'    => true,
						],
						'link' => [
							'description' => __( 'Category link', 'woocommerce' ),
							'type'        => 'string',
							'context'     => [ 'view', 'edit' ],
							'readonly'    => true,
						],
					],
				],
			],
			'tags'                => [
				'description' => __( 'List of tags, if applicable.', 'woocommerce' ),
				'type'        => 'array',
				'context'     => [ 'view', 'edit' ],
				'items'       => [
					'type'       => 'object',
					'properties' => [
						'id'   => [
							'description' => __( 'Tag ID', 'woocommerce' ),
							'type'        => 'number',
							'context'     => [ 'view', 'edit' ],
							'readonly'    => true,
						],
						'name' => [
							'description' => __( 'Tag name', 'woocommerce' ),
							'type'        => 'string',
							'context'     => [ 'view', 'edit' ],
							'readonly'    => true,
						],
						'slug' => [
							'description' => __( 'Tag slug', 'woocommerce' ),
							'type'        => 'string',
							'context'     => [ 'view', 'edit' ],
							'readonly'    => true,
						],
						'link' => [
							'description' => __( 'Tag link.', 'woocommerce' ),
							'type'        => 'string',
							'context'     => [ 'view', 'edit' ],
							'readonly'    => true,
						],
					],
				],
			],
			'brands'              => [
				'description' => __( 'List of brands, if applicable.', 'woocommerce' ),
				'type'        => 'array',
				'context'     => [ 'view', 'edit' ],
				'items'       => [
					'type'       => 'object',
					'properties' => [
						'id'   => [
							'description' => __( 'Brand ID', 'woocommerce' ),
							'type'        => 'number',
							'context'     => [ 'view', 'edit' ],
							'readonly'    => true,
						],
						'name' => [
							'description' => __( 'Brand name', 'woocommerce' ),
							'type'        => 'string',
							'context'     => [ 'view', 'edit' ],
							'readonly'    => true,
						],
						'slug' => [
							'description' => __( 'Brand slug', 'woocommerce' ),
							'type'        => 'string',
							'context'     => [ 'view', 'edit' ],
							'readonly'    => true,
						],
						'link' => [
							'description' => __( 'Brand link', 'woocommerce' ),
							'type'        => 'string',
							'context'     => [ 'view', 'edit' ],
							'readonly'    => true,
						],
					],
				],
			],
			'attributes'          => [
				'description' => __( 'List of attributes (taxonomy terms) assigned to the product. For variable products, these are mapped to variations (see the `variations` field).', 'woocommerce' ),
				'type'        => 'array',
				'context'     => [ 'view', 'edit' ],
				'items'       => [
					'type'       => 'object',
					'properties' => [
						'id'             => [
							'description' => __( 'The attribute ID, or 0 if the attribute is not taxonomy based.', 'woocommerce' ),
							'type'        => 'integer',
							'context'     => [ 'view', 'edit' ],
							'readonly'    => true,
						],
						'name'           => [
							'description' => __( 'The attribute name.', 'woocommerce' ),
							'type'        => 'string',
							'context'     => [ 'view', 'edit' ],
							'readonly'    => true,
						],
						'taxonomy'       => [
							'description' => __( 'The attribute taxonomy, or null if the attribute is not taxonomy based.', 'woocommerce' ),
							'type'        => 'string',
							'context'     => [ 'view', 'edit' ],
							'readonly'    => true,
						],
						'has_variations' => [
							'description' => __( 'True if this attribute is used by product variations.', 'woocommerce' ),
							'type'        => 'boolean',
							'context'     => [ 'view', 'edit' ],
							'readonly'    => true,
						],
						'terms'          => [
							'description' => __( 'List of assigned attribute terms.', 'woocommerce' ),
							'type'        => 'array',
							'context'     => [ 'view', 'edit' ],
							'items'       => [
								'type'       => 'object',
								'properties' => [
									'id'      => [
										'description' => __( 'The term ID, or 0 if the attribute is not a global attribute.', 'woocommerce' ),
										'type'        => 'integer',
										'context'     => [ 'view', 'edit' ],
										'readonly'    => true,
									],
									'name'    => [
										'description' => __( 'The term name.', 'woocommerce' ),
										'type'        => 'string',
										'context'     => [ 'view', 'edit' ],
										'readonly'    => true,
									],
									'slug'    => [
										'description' => __( 'The term slug.', 'woocommerce' ),
										'type'        => 'string',
										'context'     => [ 'view', 'edit' ],
										'readonly'    => true,
									],
									'default' => [
										'description' => __( 'If this is a default attribute', 'woocommerce' ),
										'type'        => 'boolean',
										'context'     => [ 'view', 'edit' ],
										'readonly'    => true,
									],
								],
							],
						],
					],
				],
			],
			'variations'          => [
				'description' => __( 'List of variation IDs, if applicable.', 'woocommerce' ),
				'type'        => 'array',
				'context'     => [ 'view', 'edit' ],
				'items'       => [
					'type'       => 'object',
					'properties' => [
						'id'         => [
							'description' => __( 'The attribute ID, or 0 if the attribute is not taxonomy based.', 'woocommerce' ),
							'type'        => 'integer',
							'context'     => [ 'view', 'edit' ],
							'readonly'    => true,
						],
						'attributes' => [
							'description' => __( 'List of variation attributes.', 'woocommerce' ),
							'type'        => 'array',
							'context'     => [ 'view', 'edit' ],
							'items'       => [
								'type'       => 'object',
								'properties' => [
									'name'  => [
										'description' => __( 'The attribute name.', 'woocommerce' ),
										'type'        => 'string',
										'context'     => [ 'view', 'edit' ],
										'readonly'    => true,
									],
									'value' => [
										'description' => __( 'The assigned attribute.', 'woocommerce' ),
										'type'        => 'string',
										'context'     => [ 'view', 'edit' ],
										'readonly'    => true,
									],
								],
							],
						],
					],
				],
			],
			'grouped_products'    => [
				'description' => __( 'List of grouped product IDs, if applicable.', 'woocommerce' ),
				'type'        => 'array',
				'context'     => [ 'view', 'edit' ],
				'items'       => [
					'description' => __( 'List of grouped product ids.', 'woocommerce' ),
					'type'        => 'integer',
					'context'     => [ 'view', 'edit' ],
					'readonly'    => true,
				],
			],
			'has_options'         => [
				'description' => __( 'Does the product have additional options before it can be added to the cart?', 'woocommerce' ),
				'type'        => 'boolean',
				'context'     => [ 'view', 'edit' ],
				'readonly'    => true,
			],
			'is_purchasable'      => [
				'description' => __( 'Is the product purchasable?', 'woocommerce' ),
				'type'        => 'boolean',
				'context'     => [ 'view', 'edit' ],
				'readonly'    => true,
			],
			'is_in_stock'         => [
				'description' => __( 'Is the product in stock?', 'woocommerce' ),
				'type'        => 'boolean',
				'context'     => [ 'view', 'edit' ],
				'readonly'    => true,
			],
			'is_on_backorder'     => [
				'description' => __( 'Is the product stock backordered? This will also return false if backorder notifications are turned off.', 'woocommerce' ),
				'type'        => 'boolean',
				'context'     => [ 'view', 'edit' ],
				'readonly'    => true,
			],
			'stock_availability'  => [
				'description' => __( 'Information about the product\'s availability.', 'woocommerce' ),
				'type'        => 'object',
				'context'     => [ 'view', 'edit' ],
				'readonly'    => true,
				'properties'  => [
					'text'  => [
						'description' => __( 'Stock availability text.', 'woocommerce' ),
						'type'        => 'string',
						'context'     => [ 'view', 'edit' ],
						'readonly'    => true,
					],
					'class' => [
						'description' => __( 'Stock availability class.', 'woocommerce' ),
						'type'        => 'string',
						'context'     => [ 'view', 'edit' ],
						'readonly'    => true,
					],
				],
			],
			'low_stock_remaining' => [
				'description' => __( 'Quantity left in stock if stock is low, or null if not applicable.', 'woocommerce' ),
				'type'        => [ 'integer', 'null' ],
				'context'     => [ 'view', 'edit' ],
				'readonly'    => true,
			],
			'sold_individually'   => [
				'description' => __( 'If true, only one item of this product is allowed for purchase in a single order.', 'woocommerce' ),
				'type'        => 'boolean',
				'context'     => [ 'view', 'edit' ],
				'readonly'    => true,
			],
			'add_to_cart'         => [
				'description' => __( 'Add to cart button parameters.', 'woocommerce' ),
				'type'        => 'object',
				'context'     => [ 'view', 'edit' ],
				'readonly'    => true,
				'properties'  => [
					'text'        => [
						'description' => __( 'Button text.', 'woocommerce' ),
						'type'        => 'string',
						'context'     => [ 'view', 'edit' ],
						'readonly'    => true,
					],
					'description' => [
						'description' => __( 'Button description.', 'woocommerce' ),
						'type'        => 'string',
						'context'     => [ 'view', 'edit' ],
						'readonly'    => true,
					],
					'url'         => [
						'description' => __( 'Add to cart URL.', 'woocommerce' ),
						'type'        => 'string',
						'context'     => [ 'view', 'edit' ],
						'readonly'    => true,
					],
					'minimum'     => [
						'description' => __( 'The minimum quantity that can be added to the cart.', 'woocommerce' ),
						'type'        => 'integer',
						'context'     => [ 'view', 'edit' ],
						'readonly'    => true,
					],
					'maximum'     => [
						'description' => __( 'The maximum quantity that can be added to the cart.', 'woocommerce' ),
						'type'        => 'integer',
						'context'     => [ 'view', 'edit' ],
						'readonly'    => true,
					],
					'multiple_of' => [
						'description' => __( 'The amount that quantities increment by. Quantity must be an multiple of this value.', 'woocommerce' ),
						'type'        => 'integer',
						'context'     => [ 'view', 'edit' ],
						'readonly'    => true,
						'default'     => 1,
					],
				],
			],
			self::EXTENDING_KEY   => $this->get_extended_schema( self::IDENTIFIER ),
		];
	}

/**
	 * Convert a WooCommerce product into an object suitable for the response.
	 *
	 * @param \WC_Product $product Product instance.
	 * @return array
	 */
	public function get_item_response( $product ) {
		$availability = ProductAvailabilityUtils::get_product_availability( $product );
		return [
			'id'                  => $product->get_id(),
			'name'                => $this->prepare_html_response( $product->get_title() ),
			'slug'                => $product->get_slug(),
			'parent'              => $product->get_parent_id(),
			'type'                => $product->get_type(),
			'variation'           => $this->prepare_html_response( $product->is_type( ProductType::VARIATION ) ? wc_get_formatted_variation( $product, true, true, false ) : '' ),
			'permalink'           => $product->get_permalink(),
			'sku'                 => $this->prepare_html_response( $product->get_sku() ),
			'short_description'   => $this->prepare_html_response( wc_format_content( wp_kses_post( $product->get_short_description() ) ) ),
			'description'         => $this->prepare_html_response( wc_format_content( wp_kses_post( $product->get_description() ) ) ),
			'on_sale'             => $product->is_on_sale(),
			'prices'              => (object) $this->prepare_product_price_response( $product ),
			'price_html'          => $this->prepare_html_response( $product->get_price_html() ),
			'average_rating'      => (string) $product->get_average_rating(),
			'review_count'        => $product->get_review_count(),
			'images'              => $this->get_images( $product ),
			'categories'          => $this->get_term_list( $product, 'product_cat' ),
			'tags'                => $this->get_term_list( $product, 'product_tag' ),
			'brands'              => $this->get_term_list( $product, 'product_brand' ),
			'attributes'          => $this->get_attributes( $product ),
			'variations'          => $this->get_variations( $product ),
			'grouped_products'    => $this->get_grouped_products( $product ),
			'has_options'         => $product->has_options(),
			'is_purchasable'      => $product->is_purchasable(),
			'is_in_stock'         => $product->is_in_stock(),
			'is_on_backorder'     => ProductStockStatus::ON_BACKORDER === $product->get_stock_status(),
			'low_stock_remaining' => $this->get_low_stock_remaining( $product ),
			'stock_availability'  => (object) array(
				'text'  => $availability['availability'] ?? '',
				'class' => $availability['class'] ?? '',
			),
			'sold_individually'   => $product->is_sold_individually(),
			'add_to_cart'         => (object) array_merge(
				[
					'text'        => $this->prepare_html_response( $product->add_to_cart_text() ),
					'description' => $this->prepare_html_response( $product->add_to_cart_description() ),
					'url'         => $this->prepare_html_response( $product->add_to_cart_url() ),
				],
				( new QuantityLimits() )->get_add_to_cart_limits( $product )
			),
			self::EXTENDING_KEY   => $this->get_extended_data( self::IDENTIFIER, $product ),

];
	}

/**
	 * Get list of product images.
	 *
	 * @param \WC_Product $product Product instance.
	 * @return array
	 */
	protected function get_images( \WC_Product $product ) {
		$attachment_ids = array_merge( [ $product->get_image_id() ], $product->get_gallery_image_ids() );

return array_values( array_filter( array_map( [ $this->image_attachment_schema, 'get_item_response' ], $attachment_ids ) ) );
	}

/**
	 * Gets remaining stock amount for a product.
	 *
	 * @param \WC_Product $product Product instance.
	 * @return integer|null
	 */
	protected function get_remaining_stock( \WC_Product $product ) {
		if ( is_null( $product->get_stock_quantity() ) ) {
			return null;
		}
		return $product->get_stock_quantity();
	}

/**
	 * If a product has low stock, return the remaining stock amount for display.
	 *
	 * @param \WC_Product $product Product instance.
	 * @return integer|null
	 */
	protected function get_low_stock_remaining( \WC_Product $product ) {
		$remaining_stock = $this->get_remaining_stock( $product );
		$stock_format    = get_option( 'woocommerce_stock_format' );

// Don't show the low stock badge if the settings doesn't allow it.
		if ( 'no_amount' === $stock_format ) {
			return null;
		}

// Show the low stock badge if the remaining stock is below or equal to the threshold.
		if ( ! is_null( $remaining_stock ) && $remaining_stock <= wc_get_low_stock_amount( $product ) ) {
			return max( $remaining_stock, 0 );
		}

return null;
	}

/**
	 * Returns true if the given attribute is valid.
	 *
	 * @param mixed $attribute Object or variable to check.
	 * @return boolean
	 */
	protected function filter_valid_attribute( $attribute ) {
		return is_a( $attribute, '\WC_Product_Attribute' );
	}

/**
	 * Returns true if the given attribute is valid and used for variations.
	 *
	 * @param mixed $attribute Object or variable to check.
	 * @return boolean
	 */
	protected function filter_variation_attribute( $attribute ) {
		return $this->filter_valid_attribute( $attribute ) && $attribute->get_variation();
	}

/**
	 * Get variation IDs and attributes from the DB.
	 *
	 * @param \WC_Product $product Product instance.
	 * @returns array
	 */
	protected function get_variations( \WC_Product $product ) {
		$variation_ids = $product->is_type( ProductType::VARIABLE ) ? $product->get_visible_children() : [];

if ( ! count( $variation_ids ) ) {
			return [];
		}

/**
		 * Gets default variation data which applies to all of this products variations.
		 */
		$attributes                  = array_filter( $product->get_attributes(), [ $this, 'filter_variation_attribute' ] );
		$default_variation_meta_data = array_reduce(
			$attributes,
			function ( $defaults, $attribute ) use ( $product ) {
				$meta_key              = wc_variation_attribute_name( $attribute->get_name() );
				$defaults[ $meta_key ] = [
					'name'  => wc_attribute_label( $attribute->get_name(), $product ),
					'value' => null,
				];
				return $defaults;
			},
			[]
		);
		$default_variation_meta_keys = array_keys( $default_variation_meta_data );

/**
		 * Gets individual variation data from the database, using cache where possible.
		 */
		$cache_group   = 'product_variation_meta_data';
		$cache_value   = wp_cache_get( $product->get_id(), $cache_group );
		$last_modified = get_the_modified_date( 'U', $product->get_id() );

if ( false === $cache_value || $last_modified !== $cache_value['last_modified'] ) {
			global $wpdb;
			// phpcs:disable WordPress.DB.PreparedSQL.NotPrepared
			$variation_meta_data = $wpdb->get_results(
				"
				SELECT post_id as variation_id, meta_key as attribute_key, meta_value as attribute_value
				FROM {$wpdb->postmeta}
				WHERE post_id IN (" . implode( ',', array_map( 'esc_sql', $variation_ids ) ) . ")
				AND meta_key IN ('" . implode( "','", array_map( 'esc_sql', $default_variation_meta_keys ) ) . "')
			"
			);
			// phpcs:enable

wp_cache_set(
				$product->get_id(),
				[
					'last_modified' => $last_modified,
					'data'          => $variation_meta_data,
				],
				$cache_group
			);
		} else {
			$variation_meta_data = $cache_value['data'];
		}

/**
		 * Merges and formats default variation data with individual variation data.
		 */
		$attributes_by_variation = array_reduce(
			$variation_meta_data,
			function ( $values, $data ) use ( $default_variation_meta_keys ) {
				// The query above only includes the keys of $default_variation_meta_data so we know all of the attributes
				// being processed here apply to this product. However, we need an additional check here because the
				// cache may have been primed elsewhere and include keys from other products.
				// @see AbstractProductGrid::prime_product_variations.
				if ( in_array( $data->attribute_key, $default_variation_meta_keys, true ) ) {
					$values[ $data->variation_id ][ $data->attribute_key ] = $data->attribute_value;
				}
				return $values;
			},
			array_fill_keys( $variation_ids, [] )
		);

$variations = [];

foreach ( $variation_ids as $variation_id ) {
			$attribute_data = $default_variation_meta_data;

foreach ( $attributes_by_variation[ $variation_id ] as $meta_key => $meta_value ) {
				if ( '' !== $meta_value ) {
					$attribute_data[ $meta_key ]['value'] = $meta_value;
				}
			}

$variations[] = (object) [
				'id'         => $variation_id,
				'attributes' => array_values( $attribute_data ),
			];
		}

return $variations;
	}

/**
	 * Get grouped product IDs.
	 *
	 * @param \WC_Product $product Product instance.
	 * @return array
	 */
	protected function get_grouped_products( \WC_Product $product ) {
		if ( $product->is_type( ProductType::GROUPED ) ) {
			return array_map(
				function ( $child ) {
					return $child->get_id();
				},
				$product->get_visible_children(),
			);
		}
		return [];
	}

/**
	 * Get list of product attributes and attribute terms.
	 *
	 * @param \WC_Product $product Product instance.
	 * @return array
	 */
	protected function get_attributes( \WC_Product $product ) {
		$attributes         = array_filter( $product->get_attributes(), [ $this, 'filter_valid_attribute' ] );
		$default_attributes = $product->get_default_attributes();
		$return             = [];

foreach ( $attributes as $attribute_slug => $attribute ) {
			// Only visible or variation attributes will be exposed by this API.
			if ( ! $attribute->get_visible() && ! $attribute->get_variation() ) {
				continue;
			}

$terms = $attribute->is_taxonomy() ? array_map( [ $this, 'prepare_product_attribute_taxonomy_value' ], $attribute->get_terms() ) : array_map( [ $this, 'prepare_product_attribute_value' ], $attribute->get_options() );
			// Custom attribute names are sanitized to be the array keys.
			// So when we do the array_key_exists check below we also need to sanitize the attribute names.

$sanitized_attribute_name = sanitize_key( $attribute->get_name() );

if ( array_key_exists( $sanitized_attribute_name, $default_attributes ) ) {
				foreach ( $terms as $term ) {
					$term->default = $term->slug === $default_attributes[ $sanitized_attribute_name ];
				}
			}

$return[] = (object) [
				'id'             => $attribute->get_id(),
				'name'           => wc_attribute_label( $attribute->get_name(), $product ),
				'taxonomy'       => $attribute->is_taxonomy() ? $attribute->get_name() : null,
				'has_variations' => true === $attribute->get_variation(),
				'terms'          => $terms,
			];
		}

return $return;
	}

/**
	 * Prepare an attribute term for the response.
	 *
	 * @param \WP_Term $term Term object.
	 * @return object
	 */
	protected function prepare_product_attribute_taxonomy_value( \WP_Term $term ) {
		return $this->prepare_product_attribute_value( $term->name, $term->term_id, $term->slug );
	}

/**
	 * Prepare an attribute term for the response.
	 *
	 * @param string $name Attribute term name.
	 * @param int    $id Attribute term ID.
	 * @param string $slug Attribute term slug.
	 * @return object
	 */
	protected function prepare_product_attribute_value( $name, $id = 0, $slug = '' ) {
		return (object) [
			'id'   => (int) $id,
			'name' => $name,
			'slug' => $slug ? $slug : $name,
		];
	}

/**
	 * Get an array of pricing data.
	 *
	 * @param \WC_Product $product Product instance.
	 * @param string      $tax_display_mode If returned prices are incl or excl of tax.
	 * @return array
	 */
	protected function prepare_product_price_response( \WC_Product $product, $tax_display_mode = '' ) {
		$prices           = [];
		$tax_display_mode = $this->get_tax_display_mode( $tax_display_mode );
		$price_function   = $this->get_price_function_from_tax_display_mode( $tax_display_mode );

// If we have a variable product, get the price from the variations (this will use the min value).
		if ( $product->is_type( ProductType::VARIABLE ) ) {
			$regular_price = $product->get_variation_regular_price();
			$sale_price    = $product->get_variation_sale_price();
		} else {
			$regular_price = $product->get_regular_price();
			$sale_price    = $product->get_sale_price();
		}

$prices['price']         = $this->prepare_money_response( $price_function( $product ), wc_get_price_decimals() );
		$prices['regular_price'] = $this->prepare_money_response( $price_function( $product, [ 'price' => $regular_price ] ), wc_get_price_decimals() );
		$prices['sale_price']    = $this->prepare_money_response( $price_function( $product, [ 'price' => $sale_price ] ), wc_get_price_decimals() );
		$prices['price_range']   = $this->get_price_range( $product, $tax_display_mode );

return $this->prepare_currency_response( $prices );
	}

/**
	 * WooCommerce can return prices including or excluding tax; choose the correct method based on tax display mode.
	 *
	 * @param string $tax_display_mode Provided tax display mode.
	 * @return string Valid tax display mode.
	 */
	protected function get_tax_display_mode( $tax_display_mode = '' ) {
		return in_array( $tax_display_mode, [ 'incl', 'excl' ], true ) ? $tax_display_mode : get_option( 'woocommerce_tax_display_shop' );
	}

/**
	 * WooCommerce can return prices including or excluding tax; choose the correct method based on tax display mode.
	 *
	 * @param string $tax_display_mode If returned prices are incl or excl of tax.
	 * @return string Function name.
	 */
	protected function get_price_function_from_tax_display_mode( $tax_display_mode ) {
		return 'incl' === $tax_display_mode ? 'wc_get_price_including_tax' : 'wc_get_price_excluding_tax';
	}

/**
	 * Get price range from certain product types.
	 *
	 * @param \WC_Product $product Product instance.
	 * @param string      $tax_display_mode If returned prices are incl or excl of tax.
	 * @return object|null
	 */
	protected function get_price_range( \WC_Product $product, $tax_display_mode = '' ) {
		$tax_display_mode = $this->get_tax_display_mode( $tax_display_mode );

if ( $product->is_type( ProductType::VARIABLE ) ) {
			$prices = $product->get_variation_prices( true );

if ( ! empty( $prices['price'] ) && ( min( $prices['price'] ) !== max( $prices['price'] ) ) ) {
				return (object) [
					'min_amount' => $this->prepare_money_response( min( $prices['price'] ), wc_get_price_decimals() ),
					'max_amount' => $this->prepare_money_response( max( $prices['price'] ), wc_get_price_decimals() ),
				];
			}
		}

if ( $product->is_type( ProductType::GROUPED ) ) {
			$children       = $product->get_visible_children();
			$price_function = 'incl' === $tax_display_mode ? 'wc_get_price_including_tax' : 'wc_get_price_excluding_tax';

foreach ( $children as $child ) {
				if ( '' !== $child->get_price() ) {
					$child_prices[] = $price_function( $child );
				}
			}

if ( ! empty( $child_prices ) ) {
				return (object) [
					'min_amount' => $this->prepare_money_response( min( $child_prices ), wc_get_price_decimals() ),
					'max_amount' => $this->prepare_money_response( max( $child_prices ), wc_get_price_decimals() ),
				];
			}
		}

return null;
	}

/**
	 * Returns a list of terms assigned to the product.
	 *
	 * @param \WC_Product $product Product object.
	 * @param string      $taxonomy Taxonomy name.
	 * @return array Array of terms (id, name, slug).
	 */
	protected function get_term_list( \WC_Product $product, $taxonomy = '' ) {
		if ( ! $taxonomy ) {
			return [];
		}

$terms = get_the_terms( $product->get_id(), $taxonomy );

if ( ! $terms || is_wp_error( $terms ) ) {
			return [];
		}

$return           = [];
		$default_category = (int) get_option( 'default_product_cat', 0 );

foreach ( $terms as $term ) {
			$link = get_term_link( $term, $taxonomy );

if ( is_wp_error( $link ) ) {
				continue;
			}

if ( $term->term_id === $default_category ) {
				continue;
			}

$return[] = (object) [
				'id'   => $term->term_id,
				'name' => $term->name,
				'slug' => $term->slug,
				'link' => $link,
			];
		}

return $return;
	}
}

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