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<?php
if ( ! defined( 'ABSPATH' ) ) {
exit;
}
/**
* WooCommerce Product Functions
*
* Functions for product specific things.
*
* @author WooThemes
* @category Core
* @package WooCommerce/Functions
* @version 3.0.0
*/
/**
* 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.
*
* @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, $deprecated = array() ) {
if ( ! did_action( 'woocommerce_init' ) ) {
/* translators: 1: wc_get_product 2: woocommerce_init */
wc_doing_it_wrong( __FUNCTION__, sprintf( __( '%1$s should not be called before the %2$s action.', 'woocommerce' ), 'wc_get_product', 'woocommerce_init' ), '2.5' );
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 );
}
/**
* 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 all transients cache for product data.
*
* @param int $post_id (default: 0)
*/
function wc_delete_product_transients( $post_id = 0 ) {
// Core transients
$transients_to_clear = array(
'wc_products_onsale',
'wc_featured_products',
'wc_outofstock_count',
'wc_low_stock_count',
);
// Transient names that include an ID
$post_transient_names = array(
'wc_product_children_',
'wc_var_prices_',
'wc_related_',
'wc_child_has_weight_',
'wc_child_has_dimensions_',
);
if ( $post_id > 0 ) {
foreach ( $post_transient_names as $transient ) {
$transients_to_clear[] = $transient . $post_id;
}
// Does this product have a parent?
$product = wc_get_product( $post_id );
if ( $product && $product->get_parent_id() > 0 ) {
wc_delete_product_transients( $product->get_parent_id() );
}
}
// Delete transients
foreach ( $transients_to_clear as $transient ) {
delete_transient( $transient );
}
// 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
* @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 ) ) {
if ( function_exists( 'wp_list_sort' ) ) {
$terms = wp_list_sort( $terms, 'term_id', 'ASC' );
} else {
usort( $terms, '_usort_terms_by_ID' );
}
$category_object = apply_filters( 'wc_product_post_type_link_product_cat', $terms[0], $terms, $post );
$category_object = get_term( $category_object, 'product_cat' );
$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' );
$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 for products etc.
*
* @access public
* @return string
*/
function wc_placeholder_img_src() {
return apply_filters( 'woocommerce_placeholder_img_src', WC()->plugin_url() . '/assets/images/placeholder.png' );
}
/**
* Get the placeholder image.
*
* @access public
*
* @param string $size
*
* @return string
*/
function wc_placeholder_img( $size = 'shop_thumbnail' ) {
$dimensions = wc_get_image_size( $size );
return apply_filters( 'woocommerce_placeholder_img', '<img src="' . wc_placeholder_img_src() . '" alt="' . esc_attr__( 'Placeholder', 'woocommerce' ) . '" width="' . esc_attr( $dimensions['width'] ) . '" class="woocommerce-placeholder wp-post-image" height="' . esc_attr( $dimensions['height'] ) . '" />', $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 (default: false) Should this be a flat list or HTML list?
* @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 ) {
foreach ( $product_ids as $product_id ) {
if ( $product = wc_get_product( $product_id ) ) {
$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();
}
}
delete_transient( 'wc_products_onsale' );
}
// Sales which are due to end
$product_ids = $data_store->get_ending_sales();
if ( $product_ids ) {
foreach ( $product_ids as $product_id ) {
if ( $product = wc_get_product( $product_id ) ) {
$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();
}
}
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.
*
* @access public
* @param array $attr
* @return array
*/
function wc_get_attachment_image_attributes( $attr ) {
if ( strstr( $attr['src'][0], 'woocommerce_uploads/' ) ) {
$attr['src'][0] = wc_placeholder_img_src();
}
return $attr;
}
add_filter( 'wp_get_attachment_image_attributes', 'wc_get_attachment_image_attributes' );
/**
* Prepare attachment for JavaScript.
*
* @access public
* @param array $response
* @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'] ) ) {
$viewed_products = array();
} else {
$viewed_products = (array) explode( '|', $_COOKIE['woocommerce_recently_viewed'] );
}
if ( ! in_array( $post->ID, $viewed_products ) ) {
$viewed_products[] = $post->ID;
}
if ( sizeof( $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
* @param string $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;
} else {
return true;
}
}
/**
* Force a unique SKU.
*
* @since 3.0.0
* @param integer $product_id
*/
function wc_product_force_unique_sku( $product_id ) {
$product = wc_get_product( $product_id );
if ( $product && ( $current_sku = $product->get_sku( 'edit' ) ) ) {
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 ) {}
}
}
/**
* Recursively appends a suffix until a unique SKU is found.
*
* @since 3.0.0
* @param integer $product_id
* @param string $sku
* @param integer $index
* @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 attibutes/data for an individual variation from the database and maintain it's integrity.
* @param revisit?
* @since 2.4.0
* @param int $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 ) ) {
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
* @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 $attachment_id
* @param object $product
*
* @return array
*/
function wc_get_product_attachment_props( $attachment_id = null, $product = false ) {
$props = array(
'title' => '',
'caption' => '',
'url' => '',
'alt' => '',
'src' => '',
'srcset' => false,
'sizes' => false,
);
if ( $attachment = get_post( $attachment_id ) ) {
$props['title'] = trim( strip_tags( $attachment->post_title ) );
$props['caption'] = trim( strip_tags( $attachment->post_excerpt ) );
$props['url'] = wp_get_attachment_url( $attachment_id );
$props['alt'] = trim( strip_tags( get_post_meta( $attachment_id, '_wp_attachment_image_alt', true ) ) );
// Large version.
$src = wp_get_attachment_image_src( $attachment_id, 'full' );
$props['full_src'] = $src[0];
$props['full_src_w'] = $src[1];
$props['full_src_h'] = $src[2];
// Thumbnail version.
$src = wp_get_attachment_image_src( $attachment_id, 'shop_thumbnail' );
$props['thumb_src'] = $src[0];
$props['thumb_src_w'] = $src[1];
$props['thumb_src_h'] = $src[2];
// Image source.
$src = wp_get_attachment_image_src( $attachment_id, 'shop_single' );
$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, 'shop_single' ) : false;
$props['sizes'] = function_exists( 'wp_get_attachment_image_sizes' ) ? wp_get_attachment_image_sizes( $attachment_id, 'shop_single' ) : false;
// Alt text fallbacks
$props['alt'] = empty( $props['alt'] ) ? $props['caption'] : $props['alt'];
$props['alt'] = empty( $props['alt'] ) ? trim( strip_tags( $attachment->post_title ) ) : $props['alt'];
$props['alt'] = empty( $props['alt'] ) && $product ? trim( strip_tags( get_the_title( $product->ID ) ) ) : $props['alt'];
}
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 min/max price meta query args.
*
* @since 3.0.0
* @param array $args Min price and max price arguments.
* @return array
*/
function wc_get_min_max_price_meta_query( $args ) {
$min = isset( $args['min_price'] ) ? floatval( $args['min_price'] ) : 0;
$max = isset( $args['max_price'] ) ? floatval( $args['max_price'] ) : 9999999999;
/**
* Adjust if the store taxes are not displayed how they are stored.
* Max is left alone because the filter was already increased.
* Kicks in when prices excluding tax are displayed including tax.
*/
if ( wc_tax_enabled() && 'incl' === get_option( 'woocommerce_tax_display_shop' ) && ! wc_prices_include_tax() ) {
$tax_classes = array_merge( array( '' ), WC_Tax::get_tax_classes() );
$class_min = $min;
foreach ( $tax_classes as $tax_class ) {
if ( $tax_rates = WC_Tax::get_rates( $tax_class ) ) {
$class_min = $min - WC_Tax::get_tax_total( WC_Tax::calc_exclusive_tax( $min, $tax_rates ) );
}
}
$min = $class_min;
}
return array(
'key' => '_price',
'value' => array( $min, $max ),
'compare' => 'BETWEEN',
'type' => 'DECIMAL(10,' . wc_get_price_decimals() . ')',
);
}
/**
* 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 array(
'instock' => __( 'In stock', 'woocommerce' ),
'outofstock' => __( 'Out of stock', '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 );
$exclude_ids = array_merge( array( 0, $product_id ), $exclude_ids );
$transient_name = 'wc_related_' . $product_id;
$related_posts = get_transient( $transient_name );
$limit = $limit > 0 ? $limit : 5;
// 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 );
}
set_transient( $transient_name, $related_posts, DAY_IN_SECONDS );
}
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
* @param array $args
* @return float
*/
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 );
$tax_amount = WC_Tax::get_tax_total( $taxes );
$return_price = round( $line_price + $tax_amount, 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() ) {
$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 );
$remove_tax = array_sum( $remove_taxes );
$return_price = round( $line_price - $remove_tax, 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 );
$return_price = round( $line_price - array_sum( $base_taxes ) + array_sum( $modded_taxes ), 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
* @param array $args
* @return float
*/
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;
}
if ( $product->is_taxable() && wc_prices_include_tax() ) {
$tax_rates = WC_Tax::get_base_tax_rates( $product->get_tax_class( 'unfiltered' ) );
$taxes = WC_Tax::calc_tax( $price * $qty, $tax_rates, true );
$price = WC_Tax::round( $price * $qty - array_sum( $taxes ) );
} else {
$price = $price * $qty;
}
return apply_filters( 'woocommerce_get_price_excluding_tax', $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
* @param array $args
* @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
* @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
* @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
* @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
* @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
* @return bool
*/
function wc_products_array_filter_editable( $product ) {
return $product && is_a( $product, 'WC_Product' ) && current_user_can( 'edit_product', $product->get_id() );
}
/**
* Sort an array of products by a value.
* @since 3.0.0
*
* @param array $products
* @param string $orderby
* @param string $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;
default :
shuffle( $products );
break;
}
if ( 'desc' === $order ) {
$products = array_reverse( $products );
}
return $products;
}
/**
* Sort by title.
* @since 3.0.0
* @param WC_Product object $a
* @param WC_Product object $b
* @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 object $a
* @param WC_Product object $b
* @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 object $a
* @param WC_Product object $b
* @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 object $a
* @param WC_Product object $b
* @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 object $a
* @param WC_Product object $b
* @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 object $a
* @param WC_Product object $b
* @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
*/
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;
}