includes/wc-term-functions.php
<?php
/**
* WooCommerce Terms
*
* Functions for handling terms/term meta.
*
* @package WooCommerce\Functions
* @version 2.1.0
*/
defined( 'ABSPATH' ) || exit;
/**
* Change get terms defaults for attributes to order by the sorting setting, or default to menu_order for sortable taxonomies.
*
* @since 3.6.0 Sorting options are now set as the default automatically, so you no longer have to request to orderby menu_order.
*
* @param array $defaults An array of default get_terms() arguments.
* @param array $taxonomies An array of taxonomies.
* @return array
*/
function wc_change_get_terms_defaults( $defaults, $taxonomies ) {
if ( is_array( $taxonomies ) && 1 < count( $taxonomies ) ) {
return $defaults;
}
$taxonomy = is_array( $taxonomies ) ? (string) current( $taxonomies ) : $taxonomies;
$orderby = 'name';
if ( taxonomy_is_product_attribute( $taxonomy ) ) {
$orderby = wc_attribute_orderby( $taxonomy );
} elseif ( in_array( $taxonomy, apply_filters( 'woocommerce_sortable_taxonomies', array( 'product_cat' ) ), true ) ) {
$orderby = 'menu_order';
}
// Change defaults. Invalid values will be changed later @see wc_change_pre_get_terms.
// These are in place so we know if a specific order was requested.
switch ( $orderby ) {
case 'menu_order':
case 'name_num':
case 'parent':
$defaults['orderby'] = $orderby;
break;
}
return $defaults;
}
add_filter( 'get_terms_defaults', 'wc_change_get_terms_defaults', 10, 2 );
/**
* Adds support to get_terms for menu_order argument.
*
* @since 3.6.0
* @param WP_Term_Query $terms_query Instance of WP_Term_Query.
*/
function wc_change_pre_get_terms( $terms_query ) {
$args = &$terms_query->query_vars;
// Put back valid orderby values.
if ( 'menu_order' === $args['orderby'] ) {
$args['orderby'] = 'name';
$args['force_menu_order_sort'] = true;
}
if ( 'name_num' === $args['orderby'] ) {
$args['orderby'] = 'name';
$args['force_numeric_name'] = true;
}
// When COUNTING, disable custom sorting.
if ( 'count' === $args['fields'] ) {
return;
}
// Support menu_order arg used in previous versions.
if ( ! empty( $args['menu_order'] ) ) {
$args['order'] = 'DESC' === strtoupper( $args['menu_order'] ) ? 'DESC' : 'ASC';
$args['force_menu_order_sort'] = true;
}
if ( ! empty( $args['force_menu_order_sort'] ) ) {
$args['orderby'] = 'meta_value_num';
$args['meta_key'] = 'order'; // phpcs:ignore
$terms_query->meta_query->parse_query_vars( $args );
}
}
add_action( 'pre_get_terms', 'wc_change_pre_get_terms', 10, 1 );
/**
* Adjust term query to handle custom sorting parameters.
*
* @param array $clauses Clauses.
* @param array $taxonomies Taxonomies.
* @param array $args Arguments.
* @return array
*/
function wc_terms_clauses( $clauses, $taxonomies, $args ) {
global $wpdb;
// No need to filter when counting.
if ( strpos( $clauses['fields'], 'COUNT(*)' ) !== false ) {
return $clauses;
}
// Force numeric sort if using name_num custom sorting param.
if ( ! empty( $args['force_numeric_name'] ) ) {
$clauses['orderby'] = str_replace( 'ORDER BY t.name', 'ORDER BY t.name+0', $clauses['orderby'] );
}
// For sorting, force left join in case order meta is missing.
if ( ! empty( $args['force_menu_order_sort'] ) ) {
$clauses['join'] = str_replace( "INNER JOIN {$wpdb->termmeta} ON ( t.term_id = {$wpdb->termmeta}.term_id )", "LEFT JOIN {$wpdb->termmeta} ON ( t.term_id = {$wpdb->termmeta}.term_id AND {$wpdb->termmeta}.meta_key='order')", $clauses['join'] );
$clauses['where'] = str_replace( "{$wpdb->termmeta}.meta_key = 'order'", "( {$wpdb->termmeta}.meta_key = 'order' OR {$wpdb->termmeta}.meta_key IS NULL )", $clauses['where'] );
$clauses['orderby'] = 'DESC' === $args['order'] ? str_replace( 'meta_value+0', 'meta_value+0 DESC, t.name', $clauses['orderby'] ) : str_replace( 'meta_value+0', 'meta_value+0 ASC, t.name', $clauses['orderby'] );
}
return $clauses;
}
add_filter( 'terms_clauses', 'wc_terms_clauses', 99, 3 );
/**
* 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 ) ) {
return array();
}
return is_null( $field ) ? $terms : wp_list_pluck( $terms, $field, $index_key );
}
/**
* 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( wp_json_encode( $args ) );
$cache_group = WC_Cache_Helper::get_cache_prefix( 'product_' . $product_id ) . $product_id;
$terms = wp_cache_get( $cache_key, $cache_group );
if ( false !== $terms ) {
return $terms;
}
$terms = wp_get_post_terms( $product_id, $taxonomy, $args );
wp_cache_add( $cache_key, $terms, $cache_group );
return $terms;
}
/**
* Wrapper used to get terms for a product.
*
* @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();
}
return apply_filters( 'woocommerce_get_product_terms', _wc_get_cached_product_terms( $product_id, $taxonomy, $args ), $product_id, $taxonomy, $args );
}
/**
* Sort by name (numeric).
*
* @param WP_Post $a First item to compare.
* @param WP_Post $b Second item to compare.
* @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 $a First item to compare.
* @param WP_Post $b Second item to compare.
* @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.
*
* @param array $args Args to control display of dropdown.
*/
function wc_product_dropdown_categories( $args = array() ) {
global $wp_query;
$args = wp_parse_args(
$args,
array(
'pad_counts' => 1,
'show_count' => 1,
'hierarchical' => 1,
'hide_empty' => 1,
'show_uncategorized' => 1,
'orderby' => 'name',
'selected' => isset( $wp_query->query_vars['product_cat'] ) ? $wp_query->query_vars['product_cat'] : '',
'show_option_none' => __( 'Select a category', 'woocommerce' ),
'option_none_value' => '',
'value_field' => 'slug',
'taxonomy' => 'product_cat',
'name' => 'product_cat',
'class' => 'dropdown_product_cat',
)
);
if ( 'order' === $args['orderby'] ) {
$args['orderby'] = 'meta_value_num';
$args['meta_key'] = 'order'; // phpcs:ignore
}
wp_dropdown_categories( $args );
}
/**
* Custom walker for Product Categories.
*
* Previously used by wc_product_dropdown_categories, but wp_dropdown_categories has been fixed in core.
*
* @param mixed ...$args Variable number of parameters to be passed to the walker.
* @return mixed
*/
function wc_walk_category_dropdown_tree( ...$args ) {
if ( ! class_exists( 'WC_Product_Cat_Dropdown_Walker', false ) ) {
include_once WC()->plugin_path() . '/includes/walkers/class-wc-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 $walker->walk( ...$args );
}
/**
* 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 );
/**
* Move a term before the a given element of its hierarchy level.
*
* @param int $the_term Term ID.
* @param int $next_id The id of the next sibling element in save hierarchy level.
* @param string $taxonomy Taxnomy.
* @param int $index Term index (default: 0).
* @param mixed $terms List of terms. (default: null).
* @return int
*/
function wc_reorder_terms( $the_term, $next_id, $taxonomy, $index = 0, $terms = null ) {
if ( ! $terms ) {
$terms = get_terms( $taxonomy, 'hide_empty=0&parent=0&menu_order=ASC' );
}
if ( empty( $terms ) ) {
return $index;
}
$id = intval( $the_term->term_id );
$term_in_level = false; // Flag: is our term to order in this level of terms.
foreach ( $terms as $term ) {
$term_id = intval( $term->term_id );
if ( $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_id === $next_id ) {
$index++;
$index = wc_set_term_order( $id, $index, $taxonomy, true );
}
// Set order.
$index++;
$index = wc_set_term_order( $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_id}&hide_empty=0&menu_order=ASC" );
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 Term ID.
* @param int $index Index.
* @param string $taxonomy Taxonomy.
* @param bool $recursive Recursive (default: false).
* @return int
*/
function wc_set_term_order( $term_id, $index, $taxonomy, $recursive = false ) {
$term_id = (int) $term_id;
$index = (int) $index;
update_term_meta( $term_id, 'order', $index );
if ( ! $recursive ) {
return $index;
}
$children = get_terms( $taxonomy, "parent=$term_id&hide_empty=0&menu_order=ASC" );
foreach ( $children as $term ) {
$index++;
$index = wc_set_term_order( $term->term_id, $index, $taxonomy, true );
}
clean_term_cache( $term_id, $taxonomy );
return $index;
}
/**
* Function for recounting product terms, ignoring hidden products.
*
* @param array $terms List of terms.
* @param object $taxonomy Taxonomy.
* @param bool $callback Callback.
* @param bool $terms_are_term_taxonomy_ids If terms are from term_taxonomy_id column.
*/
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.
$children = get_term_children( $term_id, $taxonomy->name );
if ( $children && ! 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 ) ); // WPCS: unprepared SQL ok.
// Update the count.
update_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 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 List of terms.
* @param string|array $taxonomies Single taxonomy or list of 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' ) ), true ) ) {
return $terms;
}
$o_term_counts = get_transient( 'wc_term_counts' );
$term_counts = $o_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_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 Term ID.
* @param string $taxonomy Taxonomy.
* @return array
*/
function wc_get_term_product_ids( $term_id, $taxonomy ) {
$product_ids = get_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_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_term_meta( $term_id, 'product_ids' );
}
foreach ( $tt_ids as $term_id ) {
delete_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,
)
)
);
}