woocommerce/includes/wc-product-functions.php

544 lines
15 KiB
PHP

<?php
/**
* WooCommerce Product Functions
*
* Functions for product specific things.
*
* @author WooThemes
* @category Core
* @package WooCommerce/Functions
* @version 2.1.0
*/
/**
* Main function for returning products, uses the WC_Product_Factory class.
*
* @param mixed $the_product Post object or post ID of the product.
* @param array $args (default: array()) Contains all arguments to be used to get this product.
* @return WC_Product
*/
function wc_get_product( $the_product = false, $args = array() ) {
return WC()->product_factory->get_product( $the_product, $args );
}
/**
* Update a product's stock amount
*
* @param int $product_id
* @param int $new_stock_level
*/
function wc_update_product_stock( $product_id, $new_stock_level ) {
$product = wc_get_product( $product_id );
if ( ! metadata_exists( 'post', $product_id, '_stock' ) || $product->get_stock_quantity() !== $new_stock_level ) {
$product->set_stock( $new_stock_level );
}
}
/**
* Update a product's stock status
*
* @param int $product_id
* @param int $status
*/
function wc_update_product_stock_status( $product_id, $status ) {
$product = wc_get_product( $product_id );
$product->set_stock_status( $status );
}
/**
* 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'
);
// Transients that include an ID
$post_transient_names = array(
'wc_product_children_ids_',
'wc_product_total_stock_'
);
if ( $post_id > 0 ) {
foreach( $post_transient_names as $transient ) {
$transients_to_clear[] = $transient . $post_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
* @access public
* @return array
*/
function wc_get_product_ids_on_sale() {
global $wpdb;
// 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;
$on_sale_posts = $wpdb->get_results( "
SELECT post.ID, post.post_parent FROM `$wpdb->posts` AS post
LEFT JOIN `$wpdb->postmeta` AS meta ON post.ID = meta.post_id
LEFT JOIN `$wpdb->postmeta` AS meta2 ON post.ID = meta2.post_id
WHERE post.post_type IN ( 'product', 'product_variation' )
AND post.post_status = 'publish'
AND meta.meta_key = '_sale_price'
AND meta2.meta_key = '_price'
AND CAST( meta.meta_value AS DECIMAL ) >= 0
AND CAST( meta.meta_value AS CHAR ) != ''
AND CAST( meta.meta_value AS DECIMAL ) = CAST( meta2.meta_value AS DECIMAL )
GROUP BY post.ID;
" );
$product_ids_on_sale = array_unique( array_map( 'absint', array_merge( wp_list_pluck( $on_sale_posts, 'ID' ), array_diff( wp_list_pluck( $on_sale_posts, 'post_parent' ), array( 0 ) ) ) ) );
set_transient( 'wc_products_onsale', $product_ids_on_sale, YEAR_IN_SECONDS );
return $product_ids_on_sale;
}
/**
* Function that returns an array containing the IDs of the featured products.
*
* @since 2.1
* @access public
* @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;
$featured = get_posts( array(
'post_type' => array( 'product', 'product_variation' ),
'posts_per_page' => -1,
'post_status' => 'publish',
'meta_query' => array(
array(
'key' => '_visibility',
'value' => array('catalog', 'visible'),
'compare' => 'IN'
),
array(
'key' => '_featured',
'value' => 'yes'
)
),
'fields' => 'id=>parent'
) );
$product_ids = array_keys( $featured );
$parent_ids = array_values( $featured );
$featured_product_ids = array_unique( array_merge( $product_ids, $parent_ids ) );
set_transient( 'wc_featured_products', $featured_product_ids, YEAR_IN_SECONDS );
return $featured_product_ids;
}
/**
* Filter to allow product_cat in the permalinks for products.
*
* @access public
* @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 ( $post->post_type !== 'product' )
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 no terms are assigned to this post, use a string instead (can't leave the placeholder there)
$product_cat = _x( 'uncategorized', 'slug', 'woocommerce' );
} else {
// Replace the placeholder rewrite tag with the first term's slug
$first_term = array_shift( $terms );
$product_cat = $first_term->slug;
}
$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
);
$replace = array_map( 'sanitize_title', $replace );
$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
* @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="' . __( '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
*
* @access public
* @param string $variation
* @param bool $flat (default: false)
* @return string
*/
function wc_get_formatted_variation( $variation, $flat = false ) {
$return = '';
if ( is_array( $variation ) ) {
if ( ! $flat ) {
$return = '<dl class="variation">';
}
$variation_list = array();
foreach ( $variation as $name => $value ) {
if ( ! $value ) {
continue;
}
// If this is a term slug, get the term's nice name
if ( taxonomy_exists( esc_attr( str_replace( 'attribute_', '', $name ) ) ) ) {
$term = get_term_by( 'slug', $value, esc_attr( str_replace( 'attribute_', '', $name ) ) );
if ( ! is_wp_error( $term ) && $term->name )
$value = $term->name;
} else {
$value = ucwords( str_replace( '-', ' ', $value ) );
}
if ( $flat ) {
$variation_list[] = wc_attribute_label( str_replace( 'attribute_', '', $name ) ) . ': ' . rawurldecode( $value );
} else {
$variation_list[] = '<dt>' . wc_attribute_label( str_replace( 'attribute_', '', $name ) ) . ':</dt><dd>' . rawurldecode( $value ) . '</dd>';
}
}
if ( $flat ) {
$return .= implode( ', ', $variation_list );
} else {
$return .= implode( '', $variation_list );
}
if ( ! $flat ) {
$return .= '</dl>';
}
}
return $return;
}
/**
* Function which handles the start and end of scheduled sales via cron.
*
* @access public
* @return void
*/
function wc_scheduled_sales() {
global $wpdb;
// Sales which are due to start
$product_ids = $wpdb->get_col( $wpdb->prepare( "
SELECT postmeta.post_id FROM {$wpdb->postmeta} as postmeta
LEFT JOIN {$wpdb->postmeta} as postmeta_2 ON postmeta.post_id = postmeta_2.post_id
LEFT JOIN {$wpdb->postmeta} as postmeta_3 ON postmeta.post_id = postmeta_3.post_id
WHERE postmeta.meta_key = '_sale_price_dates_from'
AND postmeta_2.meta_key = '_price'
AND postmeta_3.meta_key = '_sale_price'
AND postmeta.meta_value > 0
AND postmeta.meta_value < %s
AND postmeta_2.meta_value != postmeta_3.meta_value
", current_time( 'timestamp' ) ) );
if ( $product_ids ) {
foreach ( $product_ids as $product_id ) {
$sale_price = get_post_meta( $product_id, '_sale_price', true );
if ( $sale_price ) {
update_post_meta( $product_id, '_price', $sale_price );
} else {
// No sale price!
update_post_meta( $product_id, '_sale_price_dates_from', '' );
update_post_meta( $product_id, '_sale_price_dates_to', '' );
}
$parent = wp_get_post_parent_id( $product_id );
// Sync parent
if ( $parent ) {
// We can force variable product prices to sync up by removing their min price meta
delete_post_meta( $parent, '_min_price_variation_id' );
// Grouped products need syncing via a function
$this_product = wc_get_product( $product_id );
if ( $this_product->is_type( 'simple' ) ) {
$this_product->grouped_product_sync();
}
}
}
delete_transient( 'wc_products_onsale' );
}
// Sales which are due to end
$product_ids = $wpdb->get_col( $wpdb->prepare( "
SELECT postmeta.post_id FROM {$wpdb->postmeta} as postmeta
LEFT JOIN {$wpdb->postmeta} as postmeta_2 ON postmeta.post_id = postmeta_2.post_id
LEFT JOIN {$wpdb->postmeta} as postmeta_3 ON postmeta.post_id = postmeta_3.post_id
WHERE postmeta.meta_key = '_sale_price_dates_to'
AND postmeta_2.meta_key = '_price'
AND postmeta_3.meta_key = '_regular_price'
AND postmeta.meta_value > 0
AND postmeta.meta_value < %s
AND postmeta_2.meta_value != postmeta_3.meta_value
", current_time( 'timestamp' ) ) );
if ( $product_ids ) {
foreach ( $product_ids as $product_id ) {
$regular_price = get_post_meta( $product_id, '_regular_price', true );
update_post_meta( $product_id, '_price', $regular_price );
update_post_meta( $product_id, '_sale_price', '' );
update_post_meta( $product_id, '_sale_price_dates_from', '' );
update_post_meta( $product_id, '_sale_price_dates_to', '' );
$parent = wp_get_post_parent_id( $product_id );
// Sync parent
if ( $parent ) {
// We can force variable product price to sync up by removing their min price meta
delete_post_meta( $parent, '_min_variation_price' );
// Grouped products need syncing via a function
$this_product = wc_get_product( $product_id );
if ( $this_product->is_type( 'simple' ) ) {
$this_product->grouped_product_sync();
}
}
}
delete_transient( 'wc_products_onsale' );
}
}
add_action( 'woocommerce_scheduled_sales', 'wc_scheduled_sales' );
/**
* wc_get_attachment_image_attributes function.
*
* @access public
* @param array $attr
* @return array
*/
function wc_get_attachment_image_attributes( $attr ) {
if ( strstr( $attr['src'], 'woocommerce_uploads/' ) ) {
$attr['src'] = wc_placeholder_img_src();
}
return $attr;
}
add_filter( 'wp_get_attachment_image_attributes', 'wc_get_attachment_image_attributes' );
/**
* wc_prepare_attachment_for_js function.
*
* @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' ) )
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 ) {
global $wpdb;
$sku_found = $wpdb->get_var( $wpdb->prepare( "
SELECT $wpdb->posts.ID
FROM $wpdb->posts
LEFT JOIN $wpdb->postmeta ON ( $wpdb->posts.ID = $wpdb->postmeta.post_id )
WHERE $wpdb->posts.post_type IN ( 'product', 'product_variation' )
AND $wpdb->posts.post_status = 'publish'
AND $wpdb->postmeta.meta_key = '_sku' AND $wpdb->postmeta.meta_value = '%s'
AND $wpdb->postmeta.post_id <> %d LIMIT 1
", $sku, $product_id ) );
if ( $sku_found ) {
return false;
} else {
return true;
}
}
/**
* Get product ID by SKU.
*
* @since 2.3.0
* @param string $sku
* @return int
*/
function wc_get_product_id_by_sku( $sku ) {
global $wpdb;
$product_id = $wpdb->get_var( $wpdb->prepare( "SELECT post_id FROM $wpdb->postmeta WHERE meta_key='_sku' AND meta_value='%s' LIMIT 1", $sku ) );
return ( $product_id ) ? intval( $product_id ) : 0;
}