--- /dev/null
+<?php
+
+if ( ! defined( 'ABSPATH' ) ) {
+ exit;
+}
+
+/**
+ * WC_Breadcrumb class.
+ *
+ * @class WC_Breadcrumb
+ * @version 2.3.0
+ * @package WooCommerce/Classes
+ * @category Class
+ * @author WooThemes
+ */
+class WC_Breadcrumb {
+
+ /**
+ * Breadcrumb trail.
+ *
+ * @var array
+ */
+ private $crumbs = array();
+
+ /**
+ * Add a crumb so we don't get lost.
+ *
+ * @param string $name
+ * @param string $link
+ */
+ public function add_crumb( $name, $link = '' ) {
+ $this->crumbs[] = array(
+ strip_tags( $name ),
+ $link,
+ );
+ }
+
+ /**
+ * Reset crumbs.
+ */
+ public function reset() {
+ $this->crumbs = array();
+ }
+
+ /**
+ * Get the breadcrumb.
+ *
+ * @return array
+ */
+ public function get_breadcrumb() {
+ return apply_filters( 'woocommerce_get_breadcrumb', $this->crumbs, $this );
+ }
+
+ /**
+ * Generate breadcrumb trail.
+ *
+ * @return array of breadcrumbs
+ */
+ public function generate() {
+ $conditionals = array(
+ 'is_home',
+ 'is_404',
+ 'is_attachment',
+ 'is_single',
+ 'is_product_category',
+ 'is_product_tag',
+ 'is_shop',
+ 'is_page',
+ 'is_post_type_archive',
+ 'is_category',
+ 'is_tag',
+ 'is_author',
+ 'is_date',
+ 'is_tax',
+ );
+
+ if ( ( ! is_front_page() && ! ( is_post_type_archive() && intval( get_option( 'page_on_front' ) ) === wc_get_page_id( 'shop' ) ) ) || is_paged() ) {
+ foreach ( $conditionals as $conditional ) {
+ if ( call_user_func( $conditional ) ) {
+ call_user_func( array( $this, 'add_crumbs_' . substr( $conditional, 3 ) ) );
+ break;
+ }
+ }
+
+ $this->search_trail();
+ $this->paged_trail();
+
+ return $this->get_breadcrumb();
+ }
+
+ return array();
+ }
+
+ /**
+ * Prepend the shop page to shop breadcrumbs.
+ */
+ private function prepend_shop_page() {
+ $permalinks = wc_get_permalink_structure();
+ $shop_page_id = wc_get_page_id( 'shop' );
+ $shop_page = get_post( $shop_page_id );
+
+ // If permalinks contain the shop page in the URI prepend the breadcrumb with shop
+ if ( $shop_page_id && $shop_page && isset( $permalinks['product_base'] ) && strstr( $permalinks['product_base'], '/' . $shop_page->post_name ) && get_option( 'page_on_front' ) != $shop_page_id ) {
+ $this->add_crumb( get_the_title( $shop_page ), get_permalink( $shop_page ) );
+ }
+ }
+
+ /**
+ * is home trail.
+ */
+ private function add_crumbs_home() {
+ $this->add_crumb( single_post_title( '', false ) );
+ }
+
+ /**
+ * 404 trail.
+ */
+ private function add_crumbs_404() {
+ $this->add_crumb( __( 'Error 404', 'woocommerce' ) );
+ }
+
+ /**
+ * attachment trail.
+ */
+ private function add_crumbs_attachment() {
+ global $post;
+
+ $this->add_crumbs_single( $post->post_parent, get_permalink( $post->post_parent ) );
+ $this->add_crumb( get_the_title(), get_permalink() );
+ }
+
+ /**
+ * Single post trail.
+ *
+ * @param int $post_id
+ * @param string $permalink
+ */
+ private function add_crumbs_single( $post_id = 0, $permalink = '' ) {
+ if ( ! $post_id ) {
+ global $post;
+ } else {
+ $post = get_post( $post_id );
+ }
+
+ if ( 'product' === get_post_type( $post ) ) {
+ $this->prepend_shop_page();
+ if ( $terms = wc_get_product_terms( $post->ID, 'product_cat', array( 'orderby' => 'parent', 'order' => 'DESC' ) ) ) {
+ $main_term = apply_filters( 'woocommerce_breadcrumb_main_term', $terms[0], $terms );
+ $this->term_ancestors( $main_term->term_id, 'product_cat' );
+ $this->add_crumb( $main_term->name, get_term_link( $main_term ) );
+ }
+ } elseif ( 'post' != get_post_type( $post ) ) {
+ $post_type = get_post_type_object( get_post_type( $post ) );
+ $this->add_crumb( $post_type->labels->singular_name, get_post_type_archive_link( get_post_type( $post ) ) );
+ } else {
+ $cat = current( get_the_category( $post ) );
+ if ( $cat ) {
+ $this->term_ancestors( $cat->term_id, 'post_category' );
+ $this->add_crumb( $cat->name, get_term_link( $cat ) );
+ }
+ }
+
+ $this->add_crumb( get_the_title( $post ), $permalink );
+ }
+
+ /**
+ * Page trail.
+ */
+ private function add_crumbs_page() {
+ global $post;
+
+ if ( $post->post_parent ) {
+ $parent_crumbs = array();
+ $parent_id = $post->post_parent;
+
+ while ( $parent_id ) {
+ $page = get_post( $parent_id );
+ $parent_id = $page->post_parent;
+ $parent_crumbs[] = array( get_the_title( $page->ID ), get_permalink( $page->ID ) );
+ }
+
+ $parent_crumbs = array_reverse( $parent_crumbs );
+
+ foreach ( $parent_crumbs as $crumb ) {
+ $this->add_crumb( $crumb[0], $crumb[1] );
+ }
+ }
+
+ $this->add_crumb( get_the_title(), get_permalink() );
+ $this->endpoint_trail();
+ }
+
+ /**
+ * Product category trail.
+ */
+ private function add_crumbs_product_category() {
+ $current_term = $GLOBALS['wp_query']->get_queried_object();
+
+ $this->prepend_shop_page();
+ $this->term_ancestors( $current_term->term_id, 'product_cat' );
+ $this->add_crumb( $current_term->name );
+ }
+
+ /**
+ * Product tag trail.
+ */
+ private function add_crumbs_product_tag() {
+ $current_term = $GLOBALS['wp_query']->get_queried_object();
+
+ $this->prepend_shop_page();
+ $this->add_crumb( sprintf( __( 'Products tagged “%s”', 'woocommerce' ), $current_term->name ) );
+ }
+
+ /**
+ * Shop breadcrumb.
+ */
+ private function add_crumbs_shop() {
+ if ( get_option( 'page_on_front' ) == wc_get_page_id( 'shop' ) ) {
+ return;
+ }
+
+ $_name = wc_get_page_id( 'shop' ) ? get_the_title( wc_get_page_id( 'shop' ) ) : '';
+
+ if ( ! $_name ) {
+ $product_post_type = get_post_type_object( 'product' );
+ $_name = $product_post_type->labels->singular_name;
+ }
+
+ $this->add_crumb( $_name, get_post_type_archive_link( 'product' ) );
+ }
+
+ /**
+ * Post type archive trail.
+ */
+ private function add_crumbs_post_type_archive() {
+ $post_type = get_post_type_object( get_post_type() );
+
+ if ( $post_type ) {
+ $this->add_crumb( $post_type->labels->singular_name, get_post_type_archive_link( get_post_type() ) );
+ }
+ }
+
+ /**
+ * Category trail.
+ */
+ private function add_crumbs_category() {
+ $this_category = get_category( $GLOBALS['wp_query']->get_queried_object() );
+
+ if ( 0 != $this_category->parent ) {
+ $this->term_ancestors( $this_category->parent, 'post_category' );
+ $this->add_crumb( $this_category->name, get_category_link( $this_category->term_id ) );
+ }
+
+ $this->add_crumb( single_cat_title( '', false ), get_category_link( $this_category->term_id ) );
+ }
+
+ /**
+ * Tag trail.
+ */
+ private function add_crumbs_tag() {
+ $queried_object = $GLOBALS['wp_query']->get_queried_object();
+ $this->add_crumb( sprintf( __( 'Posts tagged “%s”', 'woocommerce' ), single_tag_title( '', false ) ), get_tag_link( $queried_object->term_id ) );
+ }
+
+ /**
+ * Add crumbs for date based archives.
+ */
+ private function add_crumbs_date() {
+ if ( is_year() || is_month() || is_day() ) {
+ $this->add_crumb( get_the_time( 'Y' ), get_year_link( get_the_time( 'Y' ) ) );
+ }
+ if ( is_month() || is_day() ) {
+ $this->add_crumb( get_the_time( 'F' ), get_month_link( get_the_time( 'Y' ), get_the_time( 'm' ) ) );
+ }
+ if ( is_day() ) {
+ $this->add_crumb( get_the_time( 'd' ) );
+ }
+ }
+
+ /**
+ * Add crumbs for taxonomies
+ */
+ private function add_crumbs_tax() {
+ $this_term = $GLOBALS['wp_query']->get_queried_object();
+ $taxonomy = get_taxonomy( $this_term->taxonomy );
+
+ $this->add_crumb( $taxonomy->labels->name );
+
+ if ( 0 != $this_term->parent ) {
+ $this->term_ancestors( $this_term->term_id, $this_term->taxonomy );
+ }
+
+ $this->add_crumb( single_term_title( '', false ), get_term_link( $this_term->term_id, $this_term->taxonomy ) );
+ }
+
+ /**
+ * Add a breadcrumb for author archives.
+ */
+ private function add_crumbs_author() {
+ global $author;
+
+ $userdata = get_userdata( $author );
+ $this->add_crumb( sprintf( __( 'Author: %s', 'woocommerce' ), $userdata->display_name ) );
+ }
+
+ /**
+ * Add crumbs for a term.
+ *
+ * @param int $term_id
+ * @param string $taxonomy
+ */
+ private function term_ancestors( $term_id, $taxonomy ) {
+ $ancestors = get_ancestors( $term_id, $taxonomy );
+ $ancestors = array_reverse( $ancestors );
+
+ foreach ( $ancestors as $ancestor ) {
+ $ancestor = get_term( $ancestor, $taxonomy );
+
+ if ( ! is_wp_error( $ancestor ) && $ancestor ) {
+ $this->add_crumb( $ancestor->name, get_term_link( $ancestor ) );
+ }
+ }
+ }
+
+ /**
+ * Endpoints.
+ */
+ private function endpoint_trail() {
+ // Is an endpoint showing?
+ if ( is_wc_endpoint_url() && ( $endpoint = WC()->query->get_current_endpoint() ) && ( $endpoint_title = WC()->query->get_endpoint_title( $endpoint ) ) ) {
+ $this->add_crumb( $endpoint_title );
+ }
+ }
+
+ /**
+ * Add a breadcrumb for search results.
+ */
+ private function search_trail() {
+ if ( is_search() ) {
+ $this->add_crumb( sprintf( __( 'Search results for “%s”', 'woocommerce' ), get_search_query() ), remove_query_arg( 'paged' ) );
+ }
+ }
+
+ /**
+ * Add a breadcrumb for pagination.
+ */
+ private function paged_trail() {
+ if ( get_query_var( 'paged' ) ) {
+ $this->add_crumb( sprintf( __( 'Page %d', 'woocommerce' ), get_query_var( 'paged' ) ) );
+ }
+ }
+}
--- /dev/null
+<?php
+/**
+ * WooCommerce Terms
+ *
+ * Functions for handling terms/term meta.
+ *
+ * @author WooThemes
+ * @category Core
+ * @package WooCommerce/Functions
+ * @version 2.1.0
+ */
+
+if ( ! defined( 'ABSPATH' ) ) {
+ exit; // Exit if accessed directly
+}
+
+/**
+ * Helper to get cached object terms and filter by field using wp_list_pluck().
+ * Works as a cached alternative for wp_get_post_terms() and wp_get_object_terms().
+ *
+ * @since 3.0.0
+ * @param int $object_id Object ID.
+ * @param string $taxonomy Taxonomy slug.
+ * @param string $field Field name.
+ * @param string $index_key Index key name.
+ * @return array
+ */
+function wc_get_object_terms( $object_id, $taxonomy, $field = null, $index_key = null ) {
+ // Test if terms exists. get_the_terms() return false when it finds no terms.
+ $terms = get_the_terms( $object_id, $taxonomy );
+
+ if ( $terms && ! is_wp_error( $terms ) ) {
+ if ( ! is_null( $field ) ) {
+ $terms = wp_list_pluck( $terms, $field, $index_key );
+ }
+ } else {
+ $terms = array();
+ }
+
+ return $terms;
+}
+
+/**
+ * Cached version of wp_get_post_terms().
+ * This is a private function (internal use ONLY).
+ *
+ * @since 3.0.0
+ * @param int $product_id Product ID.
+ * @param string $taxonomy Taxonomy slug.
+ * @param array $args Query arguments.
+ * @return array
+ */
+function _wc_get_cached_product_terms( $product_id, $taxonomy, $args = array() ) {
+ $cache_key = 'wc_' . $taxonomy . md5( json_encode( $args ) );
+ $terms = wp_cache_get( $product_id, $cache_key );
+
+ if ( false !== $terms ) {
+ return $terms;
+ }
+
+ // @codingStandardsIgnoreStart
+ $terms = wp_get_post_terms( $product_id, $taxonomy, $args );
+ // @codingStandardsIgnoreEnd
+
+ wp_cache_add( $product_id, $terms, $cache_key );
+
+ return $terms;
+}
+
+/**
+ * Wrapper for wp_get_post_terms which supports ordering by parent.
+ *
+ * NOTE: At this point in time, ordering by menu_order for example isn't possible with this function. wp_get_post_terms has no.
+ * filters which we can utilise to modify it's query. https://core.trac.wordpress.org/ticket/19094.
+ *
+ * @param int $product_id Product ID.
+ * @param string $taxonomy Taxonomy slug.
+ * @param array $args Query arguments.
+ * @return array
+ */
+function wc_get_product_terms( $product_id, $taxonomy, $args = array() ) {
+ if ( ! taxonomy_exists( $taxonomy ) ) {
+ return array();
+ }
+
+ if ( empty( $args['orderby'] ) && taxonomy_is_product_attribute( $taxonomy ) ) {
+ $args['orderby'] = wc_attribute_orderby( $taxonomy );
+ }
+
+ // Support ordering by parent.
+ if ( ! empty( $args['orderby'] ) && in_array( $args['orderby'], array( 'name_num', 'parent' ) ) ) {
+ $fields = isset( $args['fields'] ) ? $args['fields'] : 'all';
+ $orderby = $args['orderby'];
+
+ // Unset for wp_get_post_terms.
+ unset( $args['orderby'] );
+ unset( $args['fields'] );
+
+ $terms = _wc_get_cached_product_terms( $product_id, $taxonomy, $args );
+
+ switch ( $orderby ) {
+ case 'name_num' :
+ usort( $terms, '_wc_get_product_terms_name_num_usort_callback' );
+ break;
+ case 'parent' :
+ usort( $terms, '_wc_get_product_terms_parent_usort_callback' );
+ break;
+ }
+
+ switch ( $fields ) {
+ case 'names' :
+ $terms = wp_list_pluck( $terms, 'name' );
+ break;
+ case 'ids' :
+ $terms = wp_list_pluck( $terms, 'term_id' );
+ break;
+ case 'slugs' :
+ $terms = wp_list_pluck( $terms, 'slug' );
+ break;
+ }
+ } elseif ( ! empty( $args['orderby'] ) && 'menu_order' === $args['orderby'] ) {
+ // wp_get_post_terms doesn't let us use custom sort order.
+ $args['include'] = wc_get_object_terms( $product_id, $taxonomy, 'term_id' );
+
+ if ( empty( $args['include'] ) ) {
+ $terms = array();
+ } else {
+ // This isn't needed for get_terms.
+ unset( $args['orderby'] );
+
+ // Set args for get_terms.
+ $args['menu_order'] = isset( $args['order'] ) ? $args['order'] : 'ASC';
+ $args['hide_empty'] = isset( $args['hide_empty'] ) ? $args['hide_empty'] : 0;
+ $args['fields'] = isset( $args['fields'] ) ? $args['fields'] : 'names';
+
+ // Ensure slugs is valid for get_terms - slugs isn't supported.
+ $args['fields'] = ( 'slugs' === $args['fields'] ) ? 'id=>slug' : $args['fields'];
+ $terms = get_terms( $taxonomy, $args );
+ }
+ } else {
+ $terms = _wc_get_cached_product_terms( $product_id, $taxonomy, $args );
+ }
+
+ return apply_filters( 'woocommerce_get_product_terms' , $terms, $product_id, $taxonomy, $args );
+}
+
+/**
+ * Sort by name (numeric).
+ * @param WP_POST object $a
+ * @param WP_POST object $b
+ * @return int
+ */
+function _wc_get_product_terms_name_num_usort_callback( $a, $b ) {
+ $a_name = (float) $a->name;
+ $b_name = (float) $b->name;
+
+ if ( abs( $a_name - $b_name ) < 0.001 ) {
+ return 0;
+ }
+
+ return ( $a_name < $b_name ) ? -1 : 1;
+}
+
+/**
+ * Sort by parent.
+ * @param WP_POST object $a
+ * @param WP_POST object $b
+ * @return int
+ */
+function _wc_get_product_terms_parent_usort_callback( $a, $b ) {
+ if ( $a->parent === $b->parent ) {
+ return 0;
+ }
+ return ( $a->parent < $b->parent ) ? 1 : -1;
+}
+
+/**
+ * WooCommerce Dropdown categories.
+ *
+ * Stuck with this until a fix for https://core.trac.wordpress.org/ticket/13258.
+ * We use a custom walker, just like WordPress does.
+ *
+ * @param array $args
+ * @param int $deprecated_hierarchical
+ * @param int $deprecated_show_uncategorized (default: 1)
+ * @param string $deprecated_orderby
+ *
+ * @return string
+ */
+function wc_product_dropdown_categories( $args = array(), $deprecated_hierarchical = 1, $deprecated_show_uncategorized = 1, $deprecated_orderby = '' ) {
+ global $wp_query;
+
+ if ( ! is_array( $args ) ) {
+ wc_deprecated_argument( 'wc_product_dropdown_categories()', '2.1', 'show_counts, hierarchical, show_uncategorized and orderby arguments are invalid - pass a single array of values instead.' );
+
+ $args['show_count'] = $args;
+ $args['hierarchical'] = $deprecated_hierarchical;
+ $args['show_uncategorized'] = $deprecated_show_uncategorized;
+ $args['orderby'] = $deprecated_orderby;
+ }
+
+ $current_product_cat = isset( $wp_query->query_vars['product_cat'] ) ? $wp_query->query_vars['product_cat'] : '';
+ $defaults = array(
+ 'pad_counts' => 1,
+ 'show_count' => 1,
+ 'hierarchical' => 1,
+ 'hide_empty' => 1,
+ 'show_uncategorized' => 1,
+ 'orderby' => 'name',
+ 'selected' => $current_product_cat,
+ 'menu_order' => false,
+ 'option_select_text' => __( 'Select a category', 'woocommerce' ),
+ );
+
+ $args = wp_parse_args( $args, $defaults );
+
+ if ( 'order' === $args['orderby'] ) {
+ $args['menu_order'] = 'asc';
+ $args['orderby'] = 'name';
+ }
+
+ $terms = get_terms( 'product_cat', apply_filters( 'wc_product_dropdown_categories_get_terms_args', $args ) );
+
+ if ( empty( $terms ) ) {
+ return;
+ }
+
+ $output = "<select name='product_cat' class='dropdown_product_cat'>";
+ $output .= '<option value="" ' . selected( $current_product_cat, '', false ) . '>' . esc_html( $args['option_select_text'] ) . '</option>';
+ $output .= wc_walk_category_dropdown_tree( $terms, 0, $args );
+ if ( $args['show_uncategorized'] ) {
+ $output .= '<option value="0" ' . selected( $current_product_cat, '0', false ) . '>' . esc_html__( 'Uncategorized', 'woocommerce' ) . '</option>';
+ }
+ $output .= "</select>";
+
+ echo $output;
+}
+
+/**
+ * Walk the Product Categories.
+ *
+ * @return mixed
+ */
+function wc_walk_category_dropdown_tree() {
+ $args = func_get_args();
+
+ if ( ! class_exists( 'WC_Product_Cat_Dropdown_Walker', false ) ) {
+ include_once( WC()->plugin_path() . '/includes/walkers/class-product-cat-dropdown-walker.php' );
+ }
+
+ // the user's options are the third parameter
+ if ( empty( $args[2]['walker'] ) || ! is_a( $args[2]['walker'], 'Walker' ) ) {
+ $walker = new WC_Product_Cat_Dropdown_Walker;
+ } else {
+ $walker = $args[2]['walker'];
+ }
+
+ return call_user_func_array( array( &$walker, 'walk' ), $args );
+}
+
+/**
+ * When a term is split, ensure meta data maintained.
+ * @param int $old_term_id
+ * @param int $new_term_id
+ * @param string $term_taxonomy_id
+ * @param string $taxonomy
+ */
+function wc_taxonomy_metadata_update_content_for_split_terms( $old_term_id, $new_term_id, $term_taxonomy_id, $taxonomy ) {
+ global $wpdb;
+
+ if ( get_option( 'db_version' ) < 34370 ) {
+ if ( 'product_cat' === $taxonomy || taxonomy_is_product_attribute( $taxonomy ) ) {
+ $old_meta_data = $wpdb->get_results( $wpdb->prepare( "SELECT meta_key, meta_value FROM {$wpdb->prefix}woocommerce_termmeta WHERE woocommerce_term_id = %d;", $old_term_id ) );
+
+ // Copy across to split term
+ if ( $old_meta_data ) {
+ foreach ( $old_meta_data as $meta_data ) {
+ $wpdb->insert(
+ "{$wpdb->prefix}woocommerce_termmeta",
+ array(
+ 'woocommerce_term_id' => $new_term_id,
+ 'meta_key' => $meta_data->meta_key,
+ 'meta_value' => $meta_data->meta_value,
+ )
+ );
+ }
+ }
+ }
+ }
+}
+add_action( 'split_shared_term', 'wc_taxonomy_metadata_update_content_for_split_terms', 10, 4 );
+
+/**
+ * Migrate data from WC term meta to WP term meta
+ *
+ * When the database is updated to support term meta, migrate WC term meta data across.
+ * We do this when the new version is >= 34370, and the old version is < 34370 (34370 is when term meta table was added).
+ *
+ * @param string $wp_db_version The new $wp_db_version.
+ * @param string $wp_current_db_version The old (current) $wp_db_version.
+ */
+function wc_taxonomy_metadata_migrate_data( $wp_db_version, $wp_current_db_version ) {
+ if ( $wp_db_version >= 34370 && $wp_current_db_version < 34370 ) {
+ global $wpdb;
+ if ( $wpdb->query( "INSERT INTO {$wpdb->termmeta} ( term_id, meta_key, meta_value ) SELECT woocommerce_term_id, meta_key, meta_value FROM {$wpdb->prefix}woocommerce_termmeta;" ) ) {
+ $wpdb->query( "DROP TABLE IF EXISTS {$wpdb->prefix}woocommerce_termmeta" );
+ }
+ }
+}
+add_action( 'wp_upgrade', 'wc_taxonomy_metadata_migrate_data', 10, 2 );
+
+/**
+ * WooCommerce Term Meta API
+ *
+ * WC tables for storing term meta are @deprecated from WordPress 4.4 since 4.4 has its own table.
+ * This function serves as a wrapper, using the new table if present, or falling back to the WC table.
+ *
+ * @param mixed $term_id
+ * @param string $meta_key
+ * @param mixed $meta_value
+ * @param string $prev_value (default: '')
+ * @return bool
+ */
+function update_woocommerce_term_meta( $term_id, $meta_key, $meta_value, $prev_value = '' ) {
+ return function_exists( 'update_term_meta' ) ? update_term_meta( $term_id, $meta_key, $meta_value, $prev_value ) : update_metadata( 'woocommerce_term', $term_id, $meta_key, $meta_value, $prev_value );
+}
+
+/**
+ * WooCommerce Term Meta API
+ *
+ * WC tables for storing term meta are @deprecated from WordPress 4.4 since 4.4 has its own table.
+ * This function serves as a wrapper, using the new table if present, or falling back to the WC table.
+ *
+ * @param mixed $term_id
+ * @param mixed $meta_key
+ * @param mixed $meta_value
+ * @param bool $unique (default: false)
+ * @return bool
+ */
+function add_woocommerce_term_meta( $term_id, $meta_key, $meta_value, $unique = false ) {
+ return function_exists( 'add_term_meta' ) ? add_term_meta( $term_id, $meta_key, $meta_value, $unique ) : add_metadata( 'woocommerce_term', $term_id, $meta_key, $meta_value, $unique );
+}
+
+/**
+ * WooCommerce Term Meta API
+ *
+ * WC tables for storing term meta are @deprecated from WordPress 4.4 since 4.4 has its own table.
+ * This function serves as a wrapper, using the new table if present, or falling back to the WC table.
+ *
+ * @param mixed $term_id
+ * @param string $meta_key
+ * @param string $meta_value (default: '')
+ * @param bool $deprecated (default: false)
+ * @return bool
+ */
+function delete_woocommerce_term_meta( $term_id, $meta_key, $meta_value = '', $deprecated = false ) {
+ return function_exists( 'delete_term_meta' ) ? delete_term_meta( $term_id, $meta_key, $meta_value ) : delete_metadata( 'woocommerce_term', $term_id, $meta_key, $meta_value );
+}
+
+/**
+ * WooCommerce Term Meta API
+ *
+ * WC tables for storing term meta are @deprecated from WordPress 4.4 since 4.4 has its own table.
+ * This function serves as a wrapper, using the new table if present, or falling back to the WC table.
+ *
+ * @param mixed $term_id
+ * @param string $key
+ * @param bool $single (default: true)
+ * @return mixed
+ */
+function get_woocommerce_term_meta( $term_id, $key, $single = true ) {
+ return function_exists( 'get_term_meta' ) ? get_term_meta( $term_id, $key, $single ) : get_metadata( 'woocommerce_term', $term_id, $key, $single );
+}
+
+/**
+ * Move a term before the a given element of its hierarchy level.
+ *
+ * @param int $the_term
+ * @param int $next_id the id of the next sibling element in save hierarchy level
+ * @param string $taxonomy
+ * @param int $index (default: 0)
+ * @param mixed $terms (default: null)
+ * @return int
+ */
+function wc_reorder_terms( $the_term, $next_id, $taxonomy, $index = 0, $terms = null ) {
+ if ( ! $terms ) {
+ $terms = get_terms( $taxonomy, 'menu_order=ASC&hide_empty=0&parent=0' );
+ }
+ if ( empty( $terms ) ) {
+ return $index;
+ }
+
+ $id = $the_term->term_id;
+
+ $term_in_level = false; // flag: is our term to order in this level of terms
+
+ foreach ( $terms as $term ) {
+
+ if ( $term->term_id == $id ) { // our term to order, we skip
+ $term_in_level = true;
+ continue; // our term to order, we skip
+ }
+ // the nextid of our term to order, lets move our term here
+ if ( null !== $next_id && $term->term_id == $next_id ) {
+ $index++;
+ $index = wc_set_term_order( $id, $index, $taxonomy, true );
+ }
+
+ // set order
+ $index++;
+ $index = wc_set_term_order( $term->term_id, $index, $taxonomy );
+
+ /**
+ * After a term has had it's order set.
+ */
+ do_action( 'woocommerce_after_set_term_order', $term, $index, $taxonomy );
+
+ // if that term has children we walk through them
+ $children = get_terms( $taxonomy, "parent={$term->term_id}&menu_order=ASC&hide_empty=0" );
+ if ( ! empty( $children ) ) {
+ $index = wc_reorder_terms( $the_term, $next_id, $taxonomy, $index, $children );
+ }
+ }
+
+ // no nextid meaning our term is in last position
+ if ( $term_in_level && null === $next_id ) {
+ $index = wc_set_term_order( $id, $index + 1, $taxonomy, true );
+ }
+
+ return $index;
+}
+
+/**
+ * Set the sort order of a term.
+ *
+ * @param int $term_id
+ * @param int $index
+ * @param string $taxonomy
+ * @param bool $recursive (default: false)
+ * @return int
+ */
+function wc_set_term_order( $term_id, $index, $taxonomy, $recursive = false ) {
+
+ $term_id = (int) $term_id;
+ $index = (int) $index;
+
+ // Meta name
+ if ( taxonomy_is_product_attribute( $taxonomy ) ) {
+ $meta_name = 'order_' . esc_attr( $taxonomy );
+ } else {
+ $meta_name = 'order';
+ }
+
+ update_woocommerce_term_meta( $term_id, $meta_name, $index );
+
+ if ( ! $recursive ) {
+ return $index;
+ }
+
+ $children = get_terms( $taxonomy, "parent=$term_id&menu_order=ASC&hide_empty=0" );
+
+ foreach ( $children as $term ) {
+ $index++;
+ $index = wc_set_term_order( $term->term_id, $index, $taxonomy, true );
+ }
+
+ clean_term_cache( $term_id, $taxonomy );
+
+ return $index;
+}
+
+/**
+ * Add term ordering to get_terms.
+ *
+ * It enables the support a 'menu_order' parameter to get_terms for the product_cat taxonomy.
+ * By default it is 'ASC'. It accepts 'DESC' too.
+ *
+ * To disable it, set it ot false (or 0).
+ *
+ * @param array $clauses
+ * @param array $taxonomies
+ * @param array $args
+ * @return array
+ */
+function wc_terms_clauses( $clauses, $taxonomies, $args ) {
+ global $wpdb;
+
+ // No sorting when menu_order is false.
+ if ( isset( $args['menu_order'] ) && ( false === $args['menu_order'] || 'false' === $args['menu_order'] ) ) {
+ return $clauses;
+ }
+
+ // No sorting when orderby is non default.
+ if ( isset( $args['orderby'] ) && 'name' !== $args['orderby'] ) {
+ return $clauses;
+ }
+
+ // No sorting in admin when sorting by a column.
+ if ( is_admin() && isset( $_GET['orderby'] ) ) {
+ return $clauses;
+ }
+
+ // No need to filter counts
+ if ( strpos( 'COUNT(*)', $clauses['fields'] ) !== false ) {
+ return $clauses;
+ }
+
+ // WordPress should give us the taxonomies asked when calling the get_terms function. Only apply to categories and pa_ attributes.
+ $found = false;
+
+ foreach ( (array) $taxonomies as $taxonomy ) {
+ if ( taxonomy_is_product_attribute( $taxonomy ) || in_array( $taxonomy, apply_filters( 'woocommerce_sortable_taxonomies', array( 'product_cat' ) ) ) ) {
+ $found = true;
+ break;
+ }
+ }
+
+ if ( ! $found ) {
+ return $clauses;
+ }
+
+ // Meta name.
+ if ( ! empty( $taxonomies[0] ) && taxonomy_is_product_attribute( $taxonomies[0] ) ) {
+ $meta_name = 'order_' . esc_attr( $taxonomies[0] );
+ } else {
+ $meta_name = 'order';
+ }
+
+ // Query fields.
+ $clauses['fields'] = $clauses['fields'] . ', tm.meta_value';
+
+ // Query join.
+ if ( get_option( 'db_version' ) < 34370 ) {
+ $clauses['join'] .= " LEFT JOIN {$wpdb->woocommerce_termmeta} AS tm ON (t.term_id = tm.woocommerce_term_id AND tm.meta_key = '" . esc_sql( $meta_name ) . "') ";
+ } else {
+ $clauses['join'] .= " LEFT JOIN {$wpdb->termmeta} AS tm ON (t.term_id = tm.term_id AND tm.meta_key = '" . esc_sql( $meta_name ) . "') ";
+ }
+
+ // Default to ASC.
+ if ( ! isset( $args['menu_order'] ) || ! in_array( strtoupper( $args['menu_order'] ), array( 'ASC', 'DESC' ) ) ) {
+ $args['menu_order'] = 'ASC';
+ }
+
+ $order = "ORDER BY tm.meta_value+0 " . $args['menu_order'];
+
+ if ( $clauses['orderby'] ) {
+ $clauses['orderby'] = str_replace( 'ORDER BY', $order . ',', $clauses['orderby'] );
+ } else {
+ $clauses['orderby'] = $order;
+ }
+
+ // Grouping.
+ if ( strstr( $clauses['fields'], 'tr.object_id' ) ) {
+ $clauses['orderby'] = ' GROUP BY t.term_id, tr.object_id ' . $clauses['orderby'];
+ } else {
+ $clauses['orderby'] = ' GROUP BY t.term_id ' . $clauses['orderby'];
+ }
+
+ return $clauses;
+}
+
+add_filter( 'terms_clauses', 'wc_terms_clauses', 99, 3 );
+
+/**
+ * Function for recounting product terms, ignoring hidden products.
+ *
+ * @param array $terms
+ * @param string $taxonomy
+ * @param bool $callback
+ * @param bool $terms_are_term_taxonomy_ids
+ */
+function _wc_term_recount( $terms, $taxonomy, $callback = true, $terms_are_term_taxonomy_ids = true ) {
+ global $wpdb;
+
+ // Standard callback.
+ if ( $callback ) {
+ _update_post_term_count( $terms, $taxonomy );
+ }
+
+ $exclude_term_ids = array();
+ $product_visibility_term_ids = wc_get_product_visibility_term_ids();
+
+ if ( $product_visibility_term_ids['exclude-from-catalog'] ) {
+ $exclude_term_ids[] = $product_visibility_term_ids['exclude-from-catalog'];
+ }
+
+ if ( 'yes' === get_option( 'woocommerce_hide_out_of_stock_items' ) && $product_visibility_term_ids['outofstock'] ) {
+ $exclude_term_ids[] = $product_visibility_term_ids['outofstock'];
+ }
+
+ $query = array(
+ 'fields' => "
+ SELECT COUNT( DISTINCT ID ) FROM {$wpdb->posts} p
+ ",
+ 'join' => '',
+ 'where' => "
+ WHERE 1=1
+ AND p.post_status = 'publish'
+ AND p.post_type = 'product'
+
+ ",
+ );
+
+ if ( count( $exclude_term_ids ) ) {
+ $query['join'] .= " LEFT JOIN ( SELECT object_id FROM {$wpdb->term_relationships} WHERE term_taxonomy_id IN ( " . implode( ',', array_map( 'absint', $exclude_term_ids ) ) . " ) ) AS exclude_join ON exclude_join.object_id = p.ID";
+ $query['where'] .= " AND exclude_join.object_id IS NULL";
+ }
+
+ // Pre-process term taxonomy ids.
+ if ( ! $terms_are_term_taxonomy_ids ) {
+ // We passed in an array of TERMS in format id=>parent.
+ $terms = array_filter( (array) array_keys( $terms ) );
+ } else {
+ // If we have term taxonomy IDs we need to get the term ID.
+ $term_taxonomy_ids = $terms;
+ $terms = array();
+ foreach ( $term_taxonomy_ids as $term_taxonomy_id ) {
+ $term = get_term_by( 'term_taxonomy_id', $term_taxonomy_id, $taxonomy->name );
+ $terms[] = $term->term_id;
+ }
+ }
+
+ // Exit if we have no terms to count.
+ if ( empty( $terms ) ) {
+ return;
+ }
+
+ // Ancestors need counting.
+ if ( is_taxonomy_hierarchical( $taxonomy->name ) ) {
+ foreach ( $terms as $term_id ) {
+ $terms = array_merge( $terms, get_ancestors( $term_id, $taxonomy->name ) );
+ }
+ }
+
+ // Unique terms only.
+ $terms = array_unique( $terms );
+
+ // Count the terms.
+ foreach ( $terms as $term_id ) {
+ $terms_to_count = array( absint( $term_id ) );
+
+ if ( is_taxonomy_hierarchical( $taxonomy->name ) ) {
+ // We need to get the $term's hierarchy so we can count its children too
+ if ( ( $children = get_term_children( $term_id, $taxonomy->name ) ) && ! is_wp_error( $children ) ) {
+ $terms_to_count = array_unique( array_map( 'absint', array_merge( $terms_to_count, $children ) ) );
+ }
+ }
+
+ // Generate term query
+ $term_query = $query;
+ $term_query['join'] .= " INNER JOIN ( SELECT object_id FROM {$wpdb->term_relationships} INNER JOIN {$wpdb->term_taxonomy} using( term_taxonomy_id ) WHERE term_id IN ( " . implode( ',', array_map( 'absint', $terms_to_count ) ) . " ) ) AS include_join ON include_join.object_id = p.ID";
+
+ // Get the count
+ $count = $wpdb->get_var( implode( ' ', $term_query ) );
+
+ // Update the count
+ update_woocommerce_term_meta( $term_id, 'product_count_' . $taxonomy->name, absint( $count ) );
+ }
+
+ delete_transient( 'wc_term_counts' );
+}
+
+/**
+ * Recount terms after the stock amount changes.
+ *
+ * @param int $product_id
+ */
+function wc_recount_after_stock_change( $product_id ) {
+ if ( 'yes' !== get_option( 'woocommerce_hide_out_of_stock_items' ) ) {
+ return;
+ }
+
+ $product_terms = get_the_terms( $product_id, 'product_cat' );
+
+ if ( $product_terms ) {
+ $product_cats = array();
+
+ foreach ( $product_terms as $term ) {
+ $product_cats[ $term->term_id ] = $term->parent;
+ }
+
+ _wc_term_recount( $product_cats, get_taxonomy( 'product_cat' ), false, false );
+ }
+
+ $product_terms = get_the_terms( $product_id, 'product_tag' );
+
+ if ( $product_terms ) {
+ $product_tags = array();
+
+ foreach ( $product_terms as $term ) {
+ $product_tags[ $term->term_id ] = $term->parent;
+ }
+
+ _wc_term_recount( $product_tags, get_taxonomy( 'product_tag' ), false, false );
+ }
+}
+add_action( 'woocommerce_product_set_stock_status', 'wc_recount_after_stock_change' );
+
+
+/**
+ * Overrides the original term count for product categories and tags with the product count.
+ * that takes catalog visibility into account.
+ *
+ * @param array $terms
+ * @param string|array $taxonomies
+ * @return array
+ */
+function wc_change_term_counts( $terms, $taxonomies ) {
+ if ( is_admin() || is_ajax() ) {
+ return $terms;
+ }
+
+ if ( ! isset( $taxonomies[0] ) || ! in_array( $taxonomies[0], apply_filters( 'woocommerce_change_term_counts', array( 'product_cat', 'product_tag' ) ) ) ) {
+ return $terms;
+ }
+
+ $term_counts = $o_term_counts = get_transient( 'wc_term_counts' );
+
+ foreach ( $terms as &$term ) {
+ if ( is_object( $term ) ) {
+ $term_counts[ $term->term_id ] = isset( $term_counts[ $term->term_id ] ) ? $term_counts[ $term->term_id ] : get_woocommerce_term_meta( $term->term_id, 'product_count_' . $taxonomies[0] , true );
+
+ if ( '' !== $term_counts[ $term->term_id ] ) {
+ $term->count = absint( $term_counts[ $term->term_id ] );
+ }
+ }
+ }
+
+ // Update transient
+ if ( $term_counts != $o_term_counts ) {
+ set_transient( 'wc_term_counts', $term_counts, DAY_IN_SECONDS * 30 );
+ }
+
+ return $terms;
+}
+add_filter( 'get_terms', 'wc_change_term_counts', 10, 2 );
+
+/**
+ * Return products in a given term, and cache value.
+ *
+ * To keep in sync, product_count will be cleared on "set_object_terms".
+ *
+ * @param int $term_id
+ * @param string $taxonomy
+ * @return array
+ */
+function wc_get_term_product_ids( $term_id, $taxonomy ) {
+ $product_ids = get_woocommerce_term_meta( $term_id, 'product_ids', true );
+
+ if ( false === $product_ids || ! is_array( $product_ids ) ) {
+ $product_ids = get_objects_in_term( $term_id, $taxonomy );
+ update_woocommerce_term_meta( $term_id, 'product_ids', $product_ids );
+ }
+
+ return $product_ids;
+}
+
+/**
+ * When a post is updated and terms recounted (called by _update_post_term_count), clear the ids.
+ * @param int $object_id Object ID.
+ * @param array $terms An array of object terms.
+ * @param array $tt_ids An array of term taxonomy IDs.
+ * @param string $taxonomy Taxonomy slug.
+ * @param bool $append Whether to append new terms to the old terms.
+ * @param array $old_tt_ids Old array of term taxonomy IDs.
+ */
+function wc_clear_term_product_ids( $object_id, $terms, $tt_ids, $taxonomy, $append, $old_tt_ids ) {
+ foreach ( $old_tt_ids as $term_id ) {
+ delete_woocommerce_term_meta( $term_id, 'product_ids' );
+ }
+ foreach ( $tt_ids as $term_id ) {
+ delete_woocommerce_term_meta( $term_id, 'product_ids' );
+ }
+}
+add_action( 'set_object_terms', 'wc_clear_term_product_ids', 10, 6 );
+
+/**
+ * Get full list of product visibilty term ids.
+ *
+ * @since 3.0.0
+ * @return int[]
+ */
+function wc_get_product_visibility_term_ids() {
+ if ( ! taxonomy_exists( 'product_visibility' ) ) {
+ wc_doing_it_wrong( __FUNCTION__, 'wc_get_product_visibility_term_ids should not be called before taxonomies are registered (woocommerce_after_register_post_type action).', '3.1' );
+ return array();
+ }
+ return array_map( 'absint', wp_parse_args(
+ wp_list_pluck(
+ get_terms( array(
+ 'taxonomy' => 'product_visibility',
+ 'hide_empty' => false,
+ ) ),
+ 'term_taxonomy_id',
+ 'name'
+ ),
+ array(
+ 'exclude-from-catalog' => 0,
+ 'exclude-from-search' => 0,
+ 'featured' => 0,
+ 'outofstock' => 0,
+ 'rated-1' => 0,
+ 'rated-2' => 0,
+ 'rated-3' => 0,
+ 'rated-4' => 0,
+ 'rated-5' => 0,
+ )
+ ) );
+}
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