woothemes/woocommerce

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includes/wc-product-functions.php

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<?php
/**
 * WooCommerce Product Functions
 *
 * Functions for product specific things.
 *
 * @package WooCommerce\Functions
 * @version 3.0.0
 */

use Automattic\Jetpack\Constants;
use Automattic\WooCommerce\Utilities\NumberUtil;

defined( 'ABSPATH' ) || exit;

/**
 * Standard way of retrieving products based on certain parameters.
 *
 * This function should be used for product retrieval so that we have a data agnostic
 * way to get a list of products.
 *
 * Args and usage: https://github.com/woocommerce/woocommerce/wiki/wc_get_products-and-WC_Product_Query
 *
 * @since  3.0.0
 * @param  array $args Array of args (above).
 * @return array|stdClass Number of pages and an array of product objects if
 *                             paginate is true, or just an array of values.
 */
function wc_get_products( $args ) {
    // Handle some BW compatibility arg names where wp_query args differ in naming.
    $map_legacy = array(
        'numberposts'    => 'limit',
        'post_status'    => 'status',
        'post_parent'    => 'parent',
        'posts_per_page' => 'limit',
        'paged'          => 'page',
    );

    foreach ( $map_legacy as $from => $to ) {
        if ( isset( $args[ $from ] ) ) {
            $args[ $to ] = $args[ $from ];
        }
    }

    $query = new WC_Product_Query( $args );
    return $query->get_products();
}

/**
 * Main function for returning products, uses the WC_Product_Factory class.
 *
 * This function should only be called after 'init' action is finished, as there might be taxonomies that are getting
 * registered during the init action.
 *
 * @since 2.2.0
 *
 * @param mixed $the_product Post object or post ID of the product.
 * @param array $deprecated Previously used to pass arguments to the factory, e.g. to force a type.
 * @return WC_Product|null|false
 */
function wc_get_product( $the_product = false, $deprecated = array() ) {
    if ( ! did_action( 'woocommerce_init' ) || ! did_action( 'woocommerce_after_register_taxonomy' ) || ! did_action( 'woocommerce_after_register_post_type' ) ) {
        /* translators: 1: wc_get_product 2: woocommerce_init 3: woocommerce_after_register_taxonomy 4: woocommerce_after_register_post_type */
        wc_doing_it_wrong( __FUNCTION__, sprintf( __( '%1$s should not be called before the %2$s, %3$s and %4$s actions have finished.', 'woocommerce' ), 'wc_get_product', 'woocommerce_init', 'woocommerce_after_register_taxonomy', 'woocommerce_after_register_post_type' ), '3.9' );
        return false;
    }
    if ( ! empty( $deprecated ) ) {
        wc_deprecated_argument( 'args', '3.0', 'Passing args to wc_get_product is deprecated. If you need to force a type, construct the product class directly.' );
    }
    return WC()->product_factory->get_product( $the_product, $deprecated );
}

/**
 * Get a product object.
 *
 * @see WC_Product_Factory::get_product_classname
 * @since 3.9.0
 * @param string $product_type Product type. If used an invalid type a WC_Product_Simple instance will be returned.
 * @param int    $product_id   Product ID.
 * @return WC_Product
 */
function wc_get_product_object( $product_type, $product_id = 0 ) {
    $classname = WC_Product_Factory::get_product_classname( $product_id, $product_type );

    return new $classname( $product_id );
}

/**
 * Returns whether or not SKUS are enabled.
 *
 * @return bool
 */
function wc_product_sku_enabled() {
    return apply_filters( 'wc_product_sku_enabled', true );
}

/**
 * Returns whether or not product weights are enabled.
 *
 * @return bool
 */
function wc_product_weight_enabled() {
    return apply_filters( 'wc_product_weight_enabled', true );
}

/**
 * Returns whether or not product dimensions (HxWxD) are enabled.
 *
 * @return bool
 */
function wc_product_dimensions_enabled() {
    return apply_filters( 'wc_product_dimensions_enabled', true );
}

/**
 * Clear transient cache for product data.
 *
 * @param int $post_id (default: 0) The product ID.
 */
function wc_delete_product_transients( $post_id = 0 ) {
    // Transient data to clear with a fixed name which may be stale after product updates.
    $transients_to_clear = array(
        'wc_products_onsale',
        'wc_featured_products',
        'wc_outofstock_count',
        'wc_low_stock_count',
    );

    foreach ( $transients_to_clear as $transient ) {
        delete_transient( $transient );
    }

    if ( $post_id > 0 ) {
        // Transient names that include an ID - since they are dynamic they cannot be cleaned in bulk without the ID.
        $post_transient_names = array(
            'wc_product_children_',
            'wc_var_prices_',
            'wc_related_',
            'wc_child_has_weight_',
            'wc_child_has_dimensions_',
        );

        foreach ( $post_transient_names as $transient ) {
            delete_transient( $transient . $post_id );
        }
    }

    // Increments the transient version to invalidate cache.
    WC_Cache_Helper::get_transient_version( 'product', true );

    do_action( 'woocommerce_delete_product_transients', $post_id );
}

/**
 * Function that returns an array containing the IDs of the products that are on sale.
 *
 * @since 2.0
 * @return array
 */
function wc_get_product_ids_on_sale() {
    // Load from cache.
    $product_ids_on_sale = get_transient( 'wc_products_onsale' );

    // Valid cache found.
    if ( false !== $product_ids_on_sale ) {
        return $product_ids_on_sale;
    }

    $data_store          = WC_Data_Store::load( 'product' );
    $on_sale_products    = $data_store->get_on_sale_products();
    $product_ids_on_sale = wp_parse_id_list( array_merge( wp_list_pluck( $on_sale_products, 'id' ), array_diff( wp_list_pluck( $on_sale_products, 'parent_id' ), array( 0 ) ) ) );

    set_transient( 'wc_products_onsale', $product_ids_on_sale, DAY_IN_SECONDS * 30 );

    return $product_ids_on_sale;
}

/**
 * Function that returns an array containing the IDs of the featured products.
 *
 * @since 2.1
 * @return array
 */
function wc_get_featured_product_ids() {
    // Load from cache.
    $featured_product_ids = get_transient( 'wc_featured_products' );

    // Valid cache found.
    if ( false !== $featured_product_ids ) {
        return $featured_product_ids;
    }

    $data_store           = WC_Data_Store::load( 'product' );
    $featured             = $data_store->get_featured_product_ids();
    $product_ids          = array_keys( $featured );
    $parent_ids           = array_values( array_filter( $featured ) );
    $featured_product_ids = array_unique( array_merge( $product_ids, $parent_ids ) );

    set_transient( 'wc_featured_products', $featured_product_ids, DAY_IN_SECONDS * 30 );

    return $featured_product_ids;
}

/**
 * Filter to allow product_cat in the permalinks for products.
 *
 * @param  string  $permalink The existing permalink URL.
 * @param  WP_Post $post WP_Post object.
 * @return string
 */
function wc_product_post_type_link( $permalink, $post ) {
    // Abort if post is not a product.
    if ( 'product' !== $post->post_type ) {
        return $permalink;
    }

    // Abort early if the placeholder rewrite tag isn't in the generated URL.
    if ( false === strpos( $permalink, '%' ) ) {
        return $permalink;
    }

    // Get the custom taxonomy terms in use by this post.
    $terms = get_the_terms( $post->ID, 'product_cat' );

    if ( ! empty( $terms ) ) {
        $terms           = wp_list_sort(
            $terms,
            array(
                'parent'  => 'DESC',
                'term_id' => 'ASC',
            )
        );
        $category_object = apply_filters( 'wc_product_post_type_link_product_cat', $terms[0], $terms, $post );
        $product_cat     = $category_object->slug;

        if ( $category_object->parent ) {
            $ancestors = get_ancestors( $category_object->term_id, 'product_cat' );
            foreach ( $ancestors as $ancestor ) {
                $ancestor_object = get_term( $ancestor, 'product_cat' );
                if ( apply_filters( 'woocommerce_product_post_type_link_parent_category_only', false ) ) {
                    $product_cat = $ancestor_object->slug;
                } else {
                    $product_cat = $ancestor_object->slug . '/' . $product_cat;
                }
            }
        }
    } else {
        // If no terms are assigned to this post, use a string instead (can't leave the placeholder there).
        $product_cat = _x( 'uncategorized', 'slug', 'woocommerce' );
    }

    $find = array(
        '%year%',
        '%monthnum%',
        '%day%',
        '%hour%',
        '%minute%',
        '%second%',
        '%post_id%',
        '%category%',
        '%product_cat%',
    );

    $replace = array(
        date_i18n( 'Y', strtotime( $post->post_date ) ),
        date_i18n( 'm', strtotime( $post->post_date ) ),
        date_i18n( 'd', strtotime( $post->post_date ) ),
        date_i18n( 'H', strtotime( $post->post_date ) ),
        date_i18n( 'i', strtotime( $post->post_date ) ),
        date_i18n( 's', strtotime( $post->post_date ) ),
        $post->ID,
        $product_cat,
        $product_cat,
    );

    $permalink = str_replace( $find, $replace, $permalink );

    return $permalink;
}
add_filter( 'post_type_link', 'wc_product_post_type_link', 10, 2 );

/**
 * Get the placeholder image URL either from media, or use the fallback image.
 *
 * @param string $size Thumbnail size to use.
 * @return string
 */
function wc_placeholder_img_src( $size = 'woocommerce_thumbnail' ) {
    $src               = WC()->plugin_url() . '/assets/images/placeholder.png';
    $placeholder_image = get_option( 'woocommerce_placeholder_image', 0 );

    if ( ! empty( $placeholder_image ) ) {
        if ( is_numeric( $placeholder_image ) ) {
            $image = wp_get_attachment_image_src( $placeholder_image, $size );

            if ( ! empty( $image[0] ) ) {
                $src = $image[0];
            }
        } else {
            $src = $placeholder_image;
        }
    }

    return apply_filters( 'woocommerce_placeholder_img_src', $src );
}

/**
 * Get the placeholder image.
 *
 * Uses wp_get_attachment_image if using an attachment ID @since 3.6.0 to handle responsiveness.
 *
 * @param string       $size Image size.
 * @param string|array $attr Optional. Attributes for the image markup. Default empty.
 * @return string
 */
function wc_placeholder_img( $size = 'woocommerce_thumbnail', $attr = '' ) {
    $dimensions        = wc_get_image_size( $size );
    $placeholder_image = get_option( 'woocommerce_placeholder_image', 0 );

    $default_attr = array(
        'class' => 'woocommerce-placeholder wp-post-image',
        'alt'   => __( 'Placeholder', 'woocommerce' ),
    );

    $attr = wp_parse_args( $attr, $default_attr );

    if ( wp_attachment_is_image( $placeholder_image ) ) {
        $image_html = wp_get_attachment_image(
            $placeholder_image,
            $size,
            false,
            $attr
        );
    } else {
        $image      = wc_placeholder_img_src( $size );
        $hwstring   = image_hwstring( $dimensions['width'], $dimensions['height'] );
        $attributes = array();

        foreach ( $attr as $name => $value ) {
            $attribute[] = esc_attr( $name ) . '="' . esc_attr( $value ) . '"';
        }

        $image_html = '<img src="' . esc_url( $image ) . '" ' . $hwstring . implode( ' ', $attribute ) . '/>';
    }

    return apply_filters( 'woocommerce_placeholder_img', $image_html, $size, $dimensions );
}

/**
 * Variation Formatting.
 *
 * Gets a formatted version of variation data or item meta.
 *
 * @param array|WC_Product_Variation $variation Variation object.
 * @param bool                       $flat Should this be a flat list or HTML list? (default: false).
 * @param bool                       $include_names include attribute names/labels in the list.
 * @param bool                       $skip_attributes_in_name Do not list attributes already part of the variation name.
 * @return string
 */
function wc_get_formatted_variation( $variation, $flat = false, $include_names = true, $skip_attributes_in_name = false ) {
    $return = '';

    if ( is_a( $variation, 'WC_Product_Variation' ) ) {
        $variation_attributes = $variation->get_attributes();
        $product              = $variation;
        $variation_name       = $variation->get_name();
    } else {
        $product        = false;
        $variation_name = '';
        // Remove attribute_ prefix from names.
        $variation_attributes = array();
        if ( is_array( $variation ) ) {
            foreach ( $variation as $key => $value ) {
                $variation_attributes[ str_replace( 'attribute_', '', $key ) ] = $value;
            }
        }
    }

    $list_type = $include_names ? 'dl' : 'ul';

    if ( is_array( $variation_attributes ) ) {

        if ( ! $flat ) {
            $return = '<' . $list_type . ' class="variation">';
        }

        $variation_list = array();

        foreach ( $variation_attributes as $name => $value ) {
            // If this is a term slug, get the term's nice name.
            if ( taxonomy_exists( $name ) ) {
                $term = get_term_by( 'slug', $value, $name );
                if ( ! is_wp_error( $term ) && ! empty( $term->name ) ) {
                    $value = $term->name;
                }
            }

            // Do not list attributes already part of the variation name.
            if ( '' === $value || ( $skip_attributes_in_name && wc_is_attribute_in_product_name( $value, $variation_name ) ) ) {
                continue;
            }

            if ( $include_names ) {
                if ( $flat ) {
                    $variation_list[] = wc_attribute_label( $name, $product ) . ': ' . rawurldecode( $value );
                } else {
                    $variation_list[] = '<dt>' . wc_attribute_label( $name, $product ) . ':</dt><dd>' . rawurldecode( $value ) . '</dd>';
                }
            } else {
                if ( $flat ) {
                    $variation_list[] = rawurldecode( $value );
                } else {
                    $variation_list[] = '<li>' . rawurldecode( $value ) . '</li>';
                }
            }
        }

        if ( $flat ) {
            $return .= implode( ', ', $variation_list );
        } else {
            $return .= implode( '', $variation_list );
        }

        if ( ! $flat ) {
            $return .= '</' . $list_type . '>';
        }
    }
    return $return;
}

/**
 * Function which handles the start and end of scheduled sales via cron.
 */
function wc_scheduled_sales() {
    $data_store = WC_Data_Store::load( 'product' );

    // Sales which are due to start.
    $product_ids = $data_store->get_starting_sales();
    if ( $product_ids ) {
        do_action( 'wc_before_products_starting_sales', $product_ids );
        foreach ( $product_ids as $product_id ) {
            $product = wc_get_product( $product_id );

            if ( $product ) {
                $sale_price = $product->get_sale_price();

                if ( $sale_price ) {
                    $product->set_price( $sale_price );
                    $product->set_date_on_sale_from( '' );
                } else {
                    $product->set_date_on_sale_to( '' );
                    $product->set_date_on_sale_from( '' );
                }

                $product->save();
            }
        }
        do_action( 'wc_after_products_starting_sales', $product_ids );

        WC_Cache_Helper::get_transient_version( 'product', true );
        delete_transient( 'wc_products_onsale' );
    }

    // Sales which are due to end.
    $product_ids = $data_store->get_ending_sales();
    if ( $product_ids ) {
        do_action( 'wc_before_products_ending_sales', $product_ids );
        foreach ( $product_ids as $product_id ) {
            $product = wc_get_product( $product_id );

            if ( $product ) {
                $regular_price = $product->get_regular_price();
                $product->set_price( $regular_price );
                $product->set_sale_price( '' );
                $product->set_date_on_sale_to( '' );
                $product->set_date_on_sale_from( '' );
                $product->save();
            }
        }
        do_action( 'wc_after_products_ending_sales', $product_ids );

        WC_Cache_Helper::get_transient_version( 'product', true );
        delete_transient( 'wc_products_onsale' );
    }
}
add_action( 'woocommerce_scheduled_sales', 'wc_scheduled_sales' );

/**
 * Get attachment image attributes.
 *
 * @param array $attr Image attributes.
 * @return array
 */
function wc_get_attachment_image_attributes( $attr ) {
    if ( isset( $attr['src'] ) && strstr( $attr['src'], 'woocommerce_uploads/' ) ) {
        $attr['src'] = wc_placeholder_img_src();

        if ( isset( $attr['srcset'] ) ) {
            $attr['srcset'] = '';
        }
    }
    return $attr;
}
add_filter( 'wp_get_attachment_image_attributes', 'wc_get_attachment_image_attributes' );


/**
 * Prepare attachment for JavaScript.
 *
 * @param array $response JS version of a attachment post object.
 * @return array
 */
function wc_prepare_attachment_for_js( $response ) {

    if ( isset( $response['url'] ) && strstr( $response['url'], 'woocommerce_uploads/' ) ) {
        $response['full']['url'] = wc_placeholder_img_src();
        if ( isset( $response['sizes'] ) ) {
            foreach ( $response['sizes'] as $size => $value ) {
                $response['sizes'][ $size ]['url'] = wc_placeholder_img_src();
            }
        }
    }

    return $response;
}
add_filter( 'wp_prepare_attachment_for_js', 'wc_prepare_attachment_for_js' );

/**
 * Track product views.
 */
function wc_track_product_view() {
    if ( ! is_singular( 'product' ) || ! is_active_widget( false, false, 'woocommerce_recently_viewed_products', true ) ) {
        return;
    }

    global $post;

    if ( empty( $_COOKIE['woocommerce_recently_viewed'] ) ) { // @codingStandardsIgnoreLine.
        $viewed_products = array();
    } else {
        $viewed_products = wp_parse_id_list( (array) explode( '|', wp_unslash( $_COOKIE['woocommerce_recently_viewed'] ) ) ); // @codingStandardsIgnoreLine.
    }

    // Unset if already in viewed products list.
    $keys = array_flip( $viewed_products );

    if ( isset( $keys[ $post->ID ] ) ) {
        unset( $viewed_products[ $keys[ $post->ID ] ] );
    }

    $viewed_products[] = $post->ID;

    if ( count( $viewed_products ) > 15 ) {
        array_shift( $viewed_products );
    }

    // Store for session only.
    wc_setcookie( 'woocommerce_recently_viewed', implode( '|', $viewed_products ) );
}

add_action( 'template_redirect', 'wc_track_product_view', 20 );

/**
 * Get product types.
 *
 * @since 2.2
 * @return array
 */
function wc_get_product_types() {
    return (array) apply_filters(
        'product_type_selector',
        array(
            'simple'   => __( 'Simple product', 'woocommerce' ),
            'grouped'  => __( 'Grouped product', 'woocommerce' ),
            'external' => __( 'External/Affiliate product', 'woocommerce' ),
            'variable' => __( 'Variable product', 'woocommerce' ),
        )
    );
}

/**
 * Check if product sku is unique.
 *
 * @since 2.2
 * @param int    $product_id Product ID.
 * @param string $sku Product SKU.
 * @return bool
 */
function wc_product_has_unique_sku( $product_id, $sku ) {
    $data_store = WC_Data_Store::load( 'product' );
    $sku_found  = $data_store->is_existing_sku( $product_id, $sku );

    if ( apply_filters( 'wc_product_has_unique_sku', $sku_found, $product_id, $sku ) ) {
        return false;
    }

    return true;
}

/**
 * Force a unique SKU.
 *
 * @since  3.0.0
 * @param  integer $product_id Product ID.
 */
function wc_product_force_unique_sku( $product_id ) {
    $product     = wc_get_product( $product_id );
    $current_sku = $product ? $product->get_sku( 'edit' ) : '';

    if ( $current_sku ) {
        try {
            $new_sku = wc_product_generate_unique_sku( $product_id, $current_sku );

            if ( $current_sku !== $new_sku ) {
                $product->set_sku( $new_sku );
                $product->save();
            }
        } catch ( Exception $e ) {} // @codingStandardsIgnoreLine.
    }
}

/**
 * Recursively appends a suffix until a unique SKU is found.
 *
 * @since  3.0.0
 * @param  integer $product_id Product ID.
 * @param  string  $sku Product SKU.
 * @param  integer $index An optional index that can be added to the product SKU.
 * @return string
 */
function wc_product_generate_unique_sku( $product_id, $sku, $index = 0 ) {
    $generated_sku = 0 < $index ? $sku . '-' . $index : $sku;

    if ( ! wc_product_has_unique_sku( $product_id, $generated_sku ) ) {
        $generated_sku = wc_product_generate_unique_sku( $product_id, $sku, ( $index + 1 ) );
    }

    return $generated_sku;
}

/**
 * Get product ID by SKU.
 *
 * @since  2.3.0
 * @param  string $sku Product SKU.
 * @return int
 */
function wc_get_product_id_by_sku( $sku ) {
    $data_store = WC_Data_Store::load( 'product' );
    return $data_store->get_product_id_by_sku( $sku );
}

/**
 * Get attributes/data for an individual variation from the database and maintain it's integrity.
 *
 * @since  2.4.0
 * @param  int $variation_id Variation ID.
 * @return array
 */
function wc_get_product_variation_attributes( $variation_id ) {
    // Build variation data from meta.
    $all_meta                = get_post_meta( $variation_id );
    $parent_id               = wp_get_post_parent_id( $variation_id );
    $parent_attributes       = array_filter( (array) get_post_meta( $parent_id, '_product_attributes', true ) );
    $found_parent_attributes = array();
    $variation_attributes    = array();

    // Compare to parent variable product attributes and ensure they match.
    foreach ( $parent_attributes as $attribute_name => $options ) {
        if ( ! empty( $options['is_variation'] ) ) {
            $attribute                 = 'attribute_' . sanitize_title( $attribute_name );
            $found_parent_attributes[] = $attribute;
            if ( ! array_key_exists( $attribute, $variation_attributes ) ) {
                $variation_attributes[ $attribute ] = ''; // Add it - 'any' will be asumed.
            }
        }
    }

    // Get the variation attributes from meta.
    foreach ( $all_meta as $name => $value ) {
        // Only look at valid attribute meta, and also compare variation level attributes and remove any which do not exist at parent level.
        if ( 0 !== strpos( $name, 'attribute_' ) || ! in_array( $name, $found_parent_attributes, true ) ) {
            unset( $variation_attributes[ $name ] );
            continue;
        }
        /**
         * Pre 2.4 handling where 'slugs' were saved instead of the full text attribute.
         * Attempt to get full version of the text attribute from the parent.
         */
        if ( sanitize_title( $value[0] ) === $value[0] && version_compare( get_post_meta( $parent_id, '_product_version', true ), '2.4.0', '<' ) ) {
            foreach ( $parent_attributes as $attribute ) {
                if ( 'attribute_' . sanitize_title( $attribute['name'] ) !== $name ) {
                    continue;
                }
                $text_attributes = wc_get_text_attributes( $attribute['value'] );

                foreach ( $text_attributes as $text_attribute ) {
                    if ( sanitize_title( $text_attribute ) === $value[0] ) {
                        $value[0] = $text_attribute;
                        break;
                    }
                }
            }
        }

        $variation_attributes[ $name ] = $value[0];
    }

    return $variation_attributes;
}

/**
 * Get all product cats for a product by ID, including hierarchy
 *
 * @since  2.5.0
 * @param  int $product_id Product ID.
 * @return array
 */
function wc_get_product_cat_ids( $product_id ) {
    $product_cats = wc_get_product_term_ids( $product_id, 'product_cat' );

    foreach ( $product_cats as $product_cat ) {
        $product_cats = array_merge( $product_cats, get_ancestors( $product_cat, 'product_cat' ) );
    }

    return $product_cats;
}

/**
 * Gets data about an attachment, such as alt text and captions.
 *
 * @since 2.6.0
 *
 * @param int|null        $attachment_id Attachment ID.
 * @param WC_Product|bool $product WC_Product object.
 *
 * @return array
 */
function wc_get_product_attachment_props( $attachment_id = null, $product = false ) {
    $props      = array(
        'title'   => '',
        'caption' => '',
        'url'     => '',
        'alt'     => '',
        'src'     => '',
        'srcset'  => false,
        'sizes'   => false,
    );
    $attachment = get_post( $attachment_id );

    if ( $attachment && 'attachment' === $attachment->post_type ) {
        $props['title']   = wp_strip_all_tags( $attachment->post_title );
        $props['caption'] = wp_strip_all_tags( $attachment->post_excerpt );
        $props['url']     = wp_get_attachment_url( $attachment_id );

        // Alt text.
        $alt_text = array( wp_strip_all_tags( get_post_meta( $attachment_id, '_wp_attachment_image_alt', true ) ), $props['caption'], wp_strip_all_tags( $attachment->post_title ) );

        if ( $product && $product instanceof WC_Product ) {
            $alt_text[] = wp_strip_all_tags( get_the_title( $product->get_id() ) );
        }

        $alt_text     = array_filter( $alt_text );
        $props['alt'] = isset( $alt_text[0] ) ? $alt_text[0] : '';

        // Large version.
        $full_size           = apply_filters( 'woocommerce_gallery_full_size', apply_filters( 'woocommerce_product_thumbnails_large_size', 'full' ) );
        $src                 = wp_get_attachment_image_src( $attachment_id, $full_size );
        $props['full_src']   = $src[0];
        $props['full_src_w'] = $src[1];
        $props['full_src_h'] = $src[2];

        // Gallery thumbnail.
        $gallery_thumbnail                = wc_get_image_size( 'gallery_thumbnail' );
        $gallery_thumbnail_size           = apply_filters( 'woocommerce_gallery_thumbnail_size', array( $gallery_thumbnail['width'], $gallery_thumbnail['height'] ) );
        $src                              = wp_get_attachment_image_src( $attachment_id, $gallery_thumbnail_size );
        $props['gallery_thumbnail_src']   = $src[0];
        $props['gallery_thumbnail_src_w'] = $src[1];
        $props['gallery_thumbnail_src_h'] = $src[2];

        // Thumbnail version.
        $thumbnail_size       = apply_filters( 'woocommerce_thumbnail_size', 'woocommerce_thumbnail' );
        $src                  = wp_get_attachment_image_src( $attachment_id, $thumbnail_size );
        $props['thumb_src']   = $src[0];
        $props['thumb_src_w'] = $src[1];
        $props['thumb_src_h'] = $src[2];

        // Image source.
        $image_size      = apply_filters( 'woocommerce_gallery_image_size', 'woocommerce_single' );
        $src             = wp_get_attachment_image_src( $attachment_id, $image_size );
        $props['src']    = $src[0];
        $props['src_w']  = $src[1];
        $props['src_h']  = $src[2];
        $props['srcset'] = function_exists( 'wp_get_attachment_image_srcset' ) ? wp_get_attachment_image_srcset( $attachment_id, $image_size ) : false;
        $props['sizes']  = function_exists( 'wp_get_attachment_image_sizes' ) ? wp_get_attachment_image_sizes( $attachment_id, $image_size ) : false;
    }
    return $props;
}

/**
 * Get product visibility options.
 *
 * @since 3.0.0
 * @return array
 */
function wc_get_product_visibility_options() {
    return apply_filters(
        'woocommerce_product_visibility_options',
        array(
            'visible' => __( 'Shop and search results', 'woocommerce' ),
            'catalog' => __( 'Shop only', 'woocommerce' ),
            'search'  => __( 'Search results only', 'woocommerce' ),
            'hidden'  => __( 'Hidden', 'woocommerce' ),
        )
    );
}

/**
 * Get product tax class options.
 *
 * @since 3.0.0
 * @return array
 */
function wc_get_product_tax_class_options() {
    $tax_classes           = WC_Tax::get_tax_classes();
    $tax_class_options     = array();
    $tax_class_options[''] = __( 'Standard', 'woocommerce' );

    if ( ! empty( $tax_classes ) ) {
        foreach ( $tax_classes as $class ) {
            $tax_class_options[ sanitize_title( $class ) ] = $class;
        }
    }
    return $tax_class_options;
}

/**
 * Get stock status options.
 *
 * @since 3.0.0
 * @return array
 */
function wc_get_product_stock_status_options() {
    return apply_filters(
        'woocommerce_product_stock_status_options',
        array(
            'instock'     => __( 'In stock', 'woocommerce' ),
            'outofstock'  => __( 'Out of stock', 'woocommerce' ),
            'onbackorder' => __( 'On backorder', 'woocommerce' ),
        )
    );
}

/**
 * Get backorder options.
 *
 * @since 3.0.0
 * @return array
 */
function wc_get_product_backorder_options() {
    return array(
        'no'     => __( 'Do not allow', 'woocommerce' ),
        'notify' => __( 'Allow, but notify customer', 'woocommerce' ),
        'yes'    => __( 'Allow', 'woocommerce' ),
    );
}

/**
 * Get related products based on product category and tags.
 *
 * @since  3.0.0
 * @param  int   $product_id  Product ID.
 * @param  int   $limit       Limit of results.
 * @param  array $exclude_ids Exclude IDs from the results.
 * @return array
 */
function wc_get_related_products( $product_id, $limit = 5, $exclude_ids = array() ) {

    $product_id     = absint( $product_id );
    $limit          = $limit >= -1 ? $limit : 5;
    $exclude_ids    = array_merge( array( 0, $product_id ), $exclude_ids );
    $transient_name = 'wc_related_' . $product_id;
    $query_args     = http_build_query(
        array(
            'limit'       => $limit,
            'exclude_ids' => $exclude_ids,
        )
    );

    $transient     = get_transient( $transient_name );
    $related_posts = $transient && isset( $transient[ $query_args ] ) ? $transient[ $query_args ] : false;

    // We want to query related posts if they are not cached, or we don't have enough.
    if ( false === $related_posts || count( $related_posts ) < $limit ) {

        $cats_array = apply_filters( 'woocommerce_product_related_posts_relate_by_category', true, $product_id ) ? apply_filters( 'woocommerce_get_related_product_cat_terms', wc_get_product_term_ids( $product_id, 'product_cat' ), $product_id ) : array();
        $tags_array = apply_filters( 'woocommerce_product_related_posts_relate_by_tag', true, $product_id ) ? apply_filters( 'woocommerce_get_related_product_tag_terms', wc_get_product_term_ids( $product_id, 'product_tag' ), $product_id ) : array();

        // Don't bother if none are set, unless woocommerce_product_related_posts_force_display is set to true in which case all products are related.
        if ( empty( $cats_array ) && empty( $tags_array ) && ! apply_filters( 'woocommerce_product_related_posts_force_display', false, $product_id ) ) {
            $related_posts = array();
        } else {
            $data_store    = WC_Data_Store::load( 'product' );
            $related_posts = $data_store->get_related_products( $cats_array, $tags_array, $exclude_ids, $limit + 10, $product_id );
        }

        if ( $transient ) {
            $transient[ $query_args ] = $related_posts;
        } else {
            $transient = array( $query_args => $related_posts );
        }

        set_transient( $transient_name, $transient, DAY_IN_SECONDS );
    }

    $related_posts = apply_filters(
        'woocommerce_related_products',
        $related_posts,
        $product_id,
        array(
            'limit'        => $limit,
            'excluded_ids' => $exclude_ids,
        )
    );

    if ( apply_filters( 'woocommerce_product_related_posts_shuffle', true ) ) {
        shuffle( $related_posts );
    }

    return array_slice( $related_posts, 0, $limit );
}

/**
 * Retrieves product term ids for a taxonomy.
 *
 * @since  3.0.0
 * @param  int    $product_id Product ID.
 * @param  string $taxonomy   Taxonomy slug.
 * @return array
 */
function wc_get_product_term_ids( $product_id, $taxonomy ) {
    $terms = get_the_terms( $product_id, $taxonomy );
    return ( empty( $terms ) || is_wp_error( $terms ) ) ? array() : wp_list_pluck( $terms, 'term_id' );
}

/**
 * For a given product, and optionally price/qty, work out the price with tax included, based on store settings.
 *
 * @since  3.0.0
 * @param  WC_Product $product WC_Product object.
 * @param  array      $args Optional arguments to pass product quantity and price.
 * @return float|string Price with tax included, or an empty string if price calculation failed.
 */
function wc_get_price_including_tax( $product, $args = array() ) {
    $args = wp_parse_args(
        $args,
        array(
            'qty'   => '',
            'price' => '',
        )
    );

    $price = '' !== $args['price'] ? max( 0.0, (float) $args['price'] ) : $product->get_price();
    $qty   = '' !== $args['qty'] ? max( 0.0, (float) $args['qty'] ) : 1;

    if ( '' === $price ) {
        return '';
    } elseif ( empty( $qty ) ) {
        return 0.0;
    }

    $line_price   = $price * $qty;
    $return_price = $line_price;

    if ( $product->is_taxable() ) {
        if ( ! wc_prices_include_tax() ) {
            $tax_rates = WC_Tax::get_rates( $product->get_tax_class() );
            $taxes     = WC_Tax::calc_tax( $line_price, $tax_rates, false );

            if ( 'yes' === get_option( 'woocommerce_tax_round_at_subtotal' ) ) {
                $taxes_total = array_sum( $taxes );
            } else {
                $taxes_total = array_sum( array_map( 'wc_round_tax_total', $taxes ) );
            }

            $return_price = NumberUtil::round( $line_price + $taxes_total, wc_get_price_decimals() );
        } else {
            $tax_rates      = WC_Tax::get_rates( $product->get_tax_class() );
            $base_tax_rates = WC_Tax::get_base_tax_rates( $product->get_tax_class( 'unfiltered' ) );

            /**
             * If the customer is excempt from VAT, remove the taxes here.
             * Either remove the base or the user taxes depending on woocommerce_adjust_non_base_location_prices setting.
             */
            if ( ! empty( WC()->customer ) && WC()->customer->get_is_vat_exempt() ) { // @codingStandardsIgnoreLine.
                $remove_taxes = apply_filters( 'woocommerce_adjust_non_base_location_prices', true ) ? WC_Tax::calc_tax( $line_price, $base_tax_rates, true ) : WC_Tax::calc_tax( $line_price, $tax_rates, true );

                if ( 'yes' === get_option( 'woocommerce_tax_round_at_subtotal' ) ) {
                    $remove_taxes_total = array_sum( $remove_taxes );
                } else {
                    $remove_taxes_total = array_sum( array_map( 'wc_round_tax_total', $remove_taxes ) );
                }

                $return_price = NumberUtil::round( $line_price - $remove_taxes_total, wc_get_price_decimals() );

                /**
             * The woocommerce_adjust_non_base_location_prices filter can stop base taxes being taken off when dealing with out of base locations.
             * e.g. If a product costs 10 including tax, all users will pay 10 regardless of location and taxes.
             * This feature is experimental @since 2.4.7 and may change in the future. Use at your risk.
             */
            } elseif ( $tax_rates !== $base_tax_rates && apply_filters( 'woocommerce_adjust_non_base_location_prices', true ) ) {
                $base_taxes   = WC_Tax::calc_tax( $line_price, $base_tax_rates, true );
                $modded_taxes = WC_Tax::calc_tax( $line_price - array_sum( $base_taxes ), $tax_rates, false );

                if ( 'yes' === get_option( 'woocommerce_tax_round_at_subtotal' ) ) {
                    $base_taxes_total   = array_sum( $base_taxes );
                    $modded_taxes_total = array_sum( $modded_taxes );
                } else {
                    $base_taxes_total   = array_sum( array_map( 'wc_round_tax_total', $base_taxes ) );
                    $modded_taxes_total = array_sum( array_map( 'wc_round_tax_total', $modded_taxes ) );
                }

                $return_price = NumberUtil::round( $line_price - $base_taxes_total + $modded_taxes_total, wc_get_price_decimals() );
            }
        }
    }
    return apply_filters( 'woocommerce_get_price_including_tax', $return_price, $qty, $product );
}

/**
 * For a given product, and optionally price/qty, work out the price with tax excluded, based on store settings.
 *
 * @since  3.0.0
 * @param  WC_Product $product WC_Product object.
 * @param  array      $args Optional arguments to pass product quantity and price.
 * @return float|string Price with tax excluded, or an empty string if price calculation failed.
 */
function wc_get_price_excluding_tax( $product, $args = array() ) {
    $args = wp_parse_args(
        $args,
        array(
            'qty'   => '',
            'price' => '',
        )
    );

    $price = '' !== $args['price'] ? max( 0.0, (float) $args['price'] ) : $product->get_price();
    $qty   = '' !== $args['qty'] ? max( 0.0, (float) $args['qty'] ) : 1;

    if ( '' === $price ) {
        return '';
    } elseif ( empty( $qty ) ) {
        return 0.0;
    }

    $line_price = $price * $qty;

    if ( $product->is_taxable() && wc_prices_include_tax() ) {
        $tax_rates      = WC_Tax::get_rates( $product->get_tax_class() );
        $base_tax_rates = WC_Tax::get_base_tax_rates( $product->get_tax_class( 'unfiltered' ) );
        $remove_taxes   = apply_filters( 'woocommerce_adjust_non_base_location_prices', true ) ? WC_Tax::calc_tax( $line_price, $base_tax_rates, true ) : WC_Tax::calc_tax( $line_price, $tax_rates, true );
        $return_price   = $line_price - array_sum( $remove_taxes ); // Unrounded since we're dealing with tax inclusive prices. Matches logic in cart-totals class. @see adjust_non_base_location_price.
    } else {
        $return_price = $line_price;
    }

    return apply_filters( 'woocommerce_get_price_excluding_tax', $return_price, $qty, $product );
}

/**
 * Returns the price including or excluding tax, based on the 'woocommerce_tax_display_shop' setting.
 *
 * @since  3.0.0
 * @param  WC_Product $product WC_Product object.
 * @param  array      $args Optional arguments to pass product quantity and price.
 * @return float
 */
function wc_get_price_to_display( $product, $args = array() ) {
    $args = wp_parse_args(
        $args,
        array(
            'qty'   => 1,
            'price' => $product->get_price(),
        )
    );

    $price = $args['price'];
    $qty   = $args['qty'];

    return 'incl' === get_option( 'woocommerce_tax_display_shop' ) ?
        wc_get_price_including_tax(
            $product,
            array(
                'qty'   => $qty,
                'price' => $price,
            )
        ) :
        wc_get_price_excluding_tax(
            $product,
            array(
                'qty'   => $qty,
                'price' => $price,
            )
        );
}

/**
 * Returns the product categories in a list.
 *
 * @param int    $product_id Product ID.
 * @param string $sep (default: ', ').
 * @param string $before (default: '').
 * @param string $after (default: '').
 * @return string
 */
function wc_get_product_category_list( $product_id, $sep = ', ', $before = '', $after = '' ) {
    return get_the_term_list( $product_id, 'product_cat', $before, $sep, $after );
}

/**
 * Returns the product tags in a list.
 *
 * @param int    $product_id Product ID.
 * @param string $sep (default: ', ').
 * @param string $before (default: '').
 * @param string $after (default: '').
 * @return string
 */
function wc_get_product_tag_list( $product_id, $sep = ', ', $before = '', $after = '' ) {
    return get_the_term_list( $product_id, 'product_tag', $before, $sep, $after );
}

/**
 * Callback for array filter to get visible only.
 *
 * @since  3.0.0
 * @param  WC_Product $product WC_Product object.
 * @return bool
 */
function wc_products_array_filter_visible( $product ) {
    return $product && is_a( $product, 'WC_Product' ) && $product->is_visible();
}

/**
 * Callback for array filter to get visible grouped products only.
 *
 * @since  3.1.0
 * @param  WC_Product $product WC_Product object.
 * @return bool
 */
function wc_products_array_filter_visible_grouped( $product ) {
    return $product && is_a( $product, 'WC_Product' ) && ( 'publish' === $product->get_status() || current_user_can( 'edit_product', $product->get_id() ) );
}

/**
 * Callback for array filter to get products the user can edit only.
 *
 * @since  3.0.0
 * @param  WC_Product $product WC_Product object.
 * @return bool
 */
function wc_products_array_filter_editable( $product ) {
    return $product && is_a( $product, 'WC_Product' ) && current_user_can( 'edit_product', $product->get_id() );
}

/**
 * Callback for array filter to get products the user can view only.
 *
 * @since  3.4.0
 * @param  WC_Product $product WC_Product object.
 * @return bool
 */
function wc_products_array_filter_readable( $product ) {
    return $product && is_a( $product, 'WC_Product' ) && current_user_can( 'read_product', $product->get_id() );
}

/**
 * Sort an array of products by a value.
 *
 * @since  3.0.0
 *
 * @param array  $products List of products to be ordered.
 * @param string $orderby Optional order criteria.
 * @param string $order Ascending or descending order.
 *
 * @return array
 */
function wc_products_array_orderby( $products, $orderby = 'date', $order = 'desc' ) {
    $orderby = strtolower( $orderby );
    $order   = strtolower( $order );
    switch ( $orderby ) {
        case 'title':
        case 'id':
        case 'date':
        case 'modified':
        case 'menu_order':
        case 'price':
            usort( $products, 'wc_products_array_orderby_' . $orderby );
            break;
        case 'none':
            break;
        default:
            shuffle( $products );
            break;
    }
    if ( 'desc' === $order ) {
        $products = array_reverse( $products );
    }
    return $products;
}

/**
 * Sort by title.
 *
 * @since  3.0.0
 * @param  WC_Product $a First WC_Product object.
 * @param  WC_Product $b Second WC_Product object.
 * @return int
 */
function wc_products_array_orderby_title( $a, $b ) {
    return strcasecmp( $a->get_name(), $b->get_name() );
}

/**
 * Sort by id.
 *
 * @since  3.0.0
 * @param  WC_Product $a First WC_Product object.
 * @param  WC_Product $b Second WC_Product object.
 * @return int
 */
function wc_products_array_orderby_id( $a, $b ) {
    if ( $a->get_id() === $b->get_id() ) {
        return 0;
    }
    return ( $a->get_id() < $b->get_id() ) ? -1 : 1;
}

/**
 * Sort by date.
 *
 * @since  3.0.0
 * @param  WC_Product $a First WC_Product object.
 * @param  WC_Product $b Second WC_Product object.
 * @return int
 */
function wc_products_array_orderby_date( $a, $b ) {
    if ( $a->get_date_created() === $b->get_date_created() ) {
        return 0;
    }
    return ( $a->get_date_created() < $b->get_date_created() ) ? -1 : 1;
}

/**
 * Sort by modified.
 *
 * @since  3.0.0
 * @param  WC_Product $a First WC_Product object.
 * @param  WC_Product $b Second WC_Product object.
 * @return int
 */
function wc_products_array_orderby_modified( $a, $b ) {
    if ( $a->get_date_modified() === $b->get_date_modified() ) {
        return 0;
    }
    return ( $a->get_date_modified() < $b->get_date_modified() ) ? -1 : 1;
}

/**
 * Sort by menu order.
 *
 * @since  3.0.0
 * @param  WC_Product $a First WC_Product object.
 * @param  WC_Product $b Second WC_Product object.
 * @return int
 */
function wc_products_array_orderby_menu_order( $a, $b ) {
    if ( $a->get_menu_order() === $b->get_menu_order() ) {
        return 0;
    }
    return ( $a->get_menu_order() < $b->get_menu_order() ) ? -1 : 1;
}

/**
 * Sort by price low to high.
 *
 * @since  3.0.0
 * @param  WC_Product $a First WC_Product object.
 * @param  WC_Product $b Second WC_Product object.
 * @return int
 */
function wc_products_array_orderby_price( $a, $b ) {
    if ( $a->get_price() === $b->get_price() ) {
        return 0;
    }
    return ( $a->get_price() < $b->get_price() ) ? -1 : 1;
}

/**
 * Queue a product for syncing at the end of the request.
 *
 * @param int $product_id Product ID.
 */
function wc_deferred_product_sync( $product_id ) {
    global $wc_deferred_product_sync;

    if ( empty( $wc_deferred_product_sync ) ) {
        $wc_deferred_product_sync = array();
    }

    $wc_deferred_product_sync[] = $product_id;
}

/**
 * See if the lookup table is being generated already.
 *
 * @since 3.6.0
 * @return bool
 */
function wc_update_product_lookup_tables_is_running() {
    $table_updates_pending = WC()->queue()->search(
        array(
            'status'   => 'pending',
            'group'    => 'wc_update_product_lookup_tables',
            'per_page' => 1,
        )
    );

    return (bool) count( $table_updates_pending );
}

/**
 * Populate lookup table data for products.
 *
 * @since 3.6.0
 */
function wc_update_product_lookup_tables() {
    global $wpdb;

    $is_cli = Constants::is_true( 'WP_CLI' );

    if ( ! $is_cli ) {
        WC_Admin_Notices::add_notice( 'regenerating_lookup_table' );
    }

    // Note that the table is not yet generated.
    update_option( 'woocommerce_product_lookup_table_is_generating', true );

    // Make a row per product in lookup table.
    $wpdb->query(
        "
        INSERT IGNORE INTO {$wpdb->wc_product_meta_lookup} (`product_id`)
        SELECT
            posts.ID
        FROM {$wpdb->posts} posts
        WHERE
            posts.post_type IN ('product', 'product_variation')
        "
    );

    // List of column names in the lookup table we need to populate.
    $columns = array(
        'min_max_price',
        'stock_quantity',
        'sku',
        'stock_status',
        'average_rating',
        'total_sales',
        'downloadable',
        'virtual',
        'onsale',
        'tax_class',
        'tax_status', // When last column is updated, woocommerce_product_lookup_table_is_generating is updated.
    );

    foreach ( $columns as $index => $column ) {
        if ( $is_cli ) {
            wc_update_product_lookup_tables_column( $column );
        } else {
            WC()->queue()->schedule_single(
                time() + $index,
                'wc_update_product_lookup_tables_column',
                array(
                    'column' => $column,
                ),
                'wc_update_product_lookup_tables'
            );
        }
    }

    // Rating counts are serialised so they have to be unserialised before populating the lookup table.
    if ( $is_cli ) {
        $rating_count_rows = $wpdb->get_results(
            "
            SELECT post_id, meta_value FROM {$wpdb->postmeta}
            WHERE meta_key = '_wc_rating_count'
            AND meta_value != ''
            AND meta_value != 'a:0:{}'
            ",
            ARRAY_A
        );
        wc_update_product_lookup_tables_rating_count( $rating_count_rows );
    } else {
        WC()->queue()->schedule_single(
            time() + 10,
            'wc_update_product_lookup_tables_rating_count_batch',
            array(
                'offset' => 0,
                'limit'  => 50,
            ),
            'wc_update_product_lookup_tables'
        );
    }
}

/**
 * Populate lookup table column data.
 *
 * @since 3.6.0
 * @param string $column Column name to set.
 */
function wc_update_product_lookup_tables_column( $column ) {
    if ( empty( $column ) ) {
        return;
    }
    global $wpdb;
    switch ( $column ) {
        case 'min_max_price':
            $wpdb->query(
                "
                UPDATE
                    {$wpdb->wc_product_meta_lookup} lookup_table
                    INNER JOIN (
                        SELECT lookup_table.product_id, MIN( meta_value+0 ) as min_price, MAX( meta_value+0 ) as max_price
                        FROM {$wpdb->wc_product_meta_lookup} lookup_table
                        LEFT JOIN {$wpdb->postmeta} meta1 ON lookup_table.product_id = meta1.post_id AND meta1.meta_key = '_price'
                        WHERE
                            meta1.meta_value <> ''
                        GROUP BY lookup_table.product_id
                    ) as source on source.product_id = lookup_table.product_id
                SET
                    lookup_table.min_price = source.min_price,
                    lookup_table.max_price = source.max_price
                "
            );
            break;
        case 'stock_quantity':
            $wpdb->query(
                "
                UPDATE
                    {$wpdb->wc_product_meta_lookup} lookup_table
                    LEFT JOIN {$wpdb->postmeta} meta1 ON lookup_table.product_id = meta1.post_id AND meta1.meta_key = '_manage_stock'
                    LEFT JOIN {$wpdb->postmeta} meta2 ON lookup_table.product_id = meta2.post_id AND meta2.meta_key = '_stock'
                SET
                    lookup_table.stock_quantity = meta2.meta_value
                WHERE
                    meta1.meta_value = 'yes'
                "
            );
            break;
        case 'sku':
        case 'stock_status':
        case 'average_rating':
        case 'total_sales':
        case 'tax_class':
        case 'tax_status':
            if ( 'total_sales' === $column ) {
                $meta_key = 'total_sales';
            } elseif ( 'average_rating' === $column ) {
                $meta_key = '_wc_average_rating';
            } else {
                $meta_key = '_' . $column;
            }
            $column = esc_sql( $column );
            // phpcs:disable WordPress.DB.PreparedSQL.InterpolatedNotPrepared
            $wpdb->query(
                $wpdb->prepare(
                    "
                    UPDATE
                        {$wpdb->wc_product_meta_lookup} lookup_table
                        LEFT JOIN {$wpdb->postmeta} meta ON lookup_table.product_id = meta.post_id AND meta.meta_key = %s
                    SET
                        lookup_table.`{$column}` = meta.meta_value
                    ",
                    $meta_key
                )
            );
            // phpcs:enable WordPress.DB.PreparedSQL.InterpolatedNotPrepared
            break;
        case 'downloadable':
        case 'virtual':
            $column   = esc_sql( $column );
            $meta_key = '_' . $column;
            // phpcs:disable WordPress.DB.PreparedSQL.InterpolatedNotPrepared
            $wpdb->query(
                $wpdb->prepare(
                    "
                    UPDATE
                        {$wpdb->wc_product_meta_lookup} lookup_table
                        LEFT JOIN {$wpdb->postmeta} meta1 ON lookup_table.product_id = meta1.post_id AND meta1.meta_key = %s
                    SET
                        lookup_table.`{$column}` = IF ( meta1.meta_value = 'yes', 1, 0 )
                    ",
                    $meta_key
                )
            );
            // phpcs:enable WordPress.DB.PreparedSQL.InterpolatedNotPrepared
            break;
        case 'onsale':
            $column   = esc_sql( $column );
            $decimals = absint( wc_get_price_decimals() );

            // phpcs:disable WordPress.DB.PreparedSQL.InterpolatedNotPrepared
            $wpdb->query(
                $wpdb->prepare(
                    "
                    UPDATE
                        {$wpdb->wc_product_meta_lookup} lookup_table
                        LEFT JOIN {$wpdb->postmeta} meta1 ON lookup_table.product_id = meta1.post_id AND meta1.meta_key = '_price'
                        LEFT JOIN {$wpdb->postmeta} meta2 ON lookup_table.product_id = meta2.post_id AND meta2.meta_key = '_sale_price'
                    SET
                        lookup_table.`{$column}` = IF (
                            CAST( meta1.meta_value AS DECIMAL ) >= 0
                            AND CAST( meta2.meta_value AS CHAR ) != ''
                            AND CAST( meta1.meta_value AS DECIMAL( 10, %d ) ) = CAST( meta2.meta_value AS DECIMAL( 10, %d ) )
                        , 1, 0 )
                    ",
                    $decimals,
                    $decimals
                )
            );
            // phpcs:enable WordPress.DB.PreparedSQL.InterpolatedNotPrepared
            break;
    }

    // Final column - mark complete.
    if ( 'tax_status' === $column ) {
        delete_option( 'woocommerce_product_lookup_table_is_generating' );
    }
}
add_action( 'wc_update_product_lookup_tables_column', 'wc_update_product_lookup_tables_column' );

/**
 * Populate rating count lookup table data for products.
 *
 * @since 3.6.0
 * @param array $rows Rows of rating counts to update in lookup table.
 */
function wc_update_product_lookup_tables_rating_count( $rows ) {
    if ( ! $rows || ! is_array( $rows ) ) {
        return;
    }
    global $wpdb;

    foreach ( $rows as $row ) {
        $count = array_sum( (array) maybe_unserialize( $row['meta_value'] ) );
        $wpdb->update(
            $wpdb->wc_product_meta_lookup,
            array(
                'rating_count' => absint( $count ),
            ),
            array(
                'product_id' => absint( $row['post_id'] ),
            )
        );
    }
}

/**
 * Populate a batch of rating count lookup table data for products.
 *
 * @since 3.6.2
 * @param array $offset Offset to query.
 * @param array $limit  Limit to query.
 */
function wc_update_product_lookup_tables_rating_count_batch( $offset = 0, $limit = 0 ) {
    global $wpdb;

    if ( ! $limit ) {
        return;
    }

    $rating_count_rows = $wpdb->get_results(
        $wpdb->prepare(
            "
            SELECT post_id, meta_value FROM {$wpdb->postmeta}
            WHERE meta_key = '_wc_rating_count'
            AND meta_value != ''
            AND meta_value != 'a:0:{}'
            ORDER BY post_id ASC
            LIMIT %d, %d
            ",
            $offset,
            $limit
        ),
        ARRAY_A
    );

    if ( $rating_count_rows ) {
        wc_update_product_lookup_tables_rating_count( $rating_count_rows );
        WC()->queue()->schedule_single(
            time() + 1,
            'wc_update_product_lookup_tables_rating_count_batch',
            array(
                'offset' => $offset + $limit,
                'limit'  => $limit,
            ),
            'wc_update_product_lookup_tables'
        );
    }
}
add_action( 'wc_update_product_lookup_tables_rating_count_batch', 'wc_update_product_lookup_tables_rating_count_batch', 10, 2 );