woocommerce/includes/wc-product-functions.php

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<?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 get_product( $the_product = false, $args = array() ) {
return WC()->product_factory->get_product( $the_product, $args );
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}
/**
* 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 = get_product( $product_id );
if ( $product->is_type( 'variation' ) )
$product->set_stock( $new_stock_level, true );
else
$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 = 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 );
}
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/**
* Clear all transients cache for product data.
*
* @param int $post_id (default: 0)
*/
function wc_delete_product_transients( $post_id = 0 ) {
global $wpdb;
if ( wp_using_ext_object_cache() ) {
wp_cache_flush(); // There isn't a reliable method of looking up the names, so flush the cache.
return;
}
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$post_id = absint( $post_id );
// Clear core transients
$transients_to_clear = array(
'wc_products_onsale',
'wc_hidden_product_ids',
'wc_hidden_product_ids_search',
'wc_attribute_taxonomies',
'wc_term_counts'
);
// Clear transients for which we don't have the name
$wpdb->query( "DELETE FROM `$wpdb->options` WHERE `option_name` LIKE ('_transient_wc_uf_pid_%') OR `option_name` LIKE ('_transient_timeout_wc_uf_pid_%')" );
$wpdb->query( "DELETE FROM `$wpdb->options` WHERE `option_name` LIKE ('_transient_wc_ln_count_%') OR `option_name` LIKE ('_transient_timeout_wc_ln_count_%')" );
$wpdb->query( "DELETE FROM `$wpdb->options` WHERE `option_name` LIKE ('_transient_wc_ship_%') OR `option_name` LIKE ('_transient_timeout_wc_ship_%')" );
$wpdb->query( "DELETE FROM `$wpdb->options` WHERE `option_name` LIKE ('_transient_wc_products_will_display_%') OR `option_name` LIKE ('_transient_timeout_wc_products_will_display_%')" );
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// Clear product specific transients
$post_transient_names = array(
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'wc_product_children_ids_',
'wc_product_total_stock_',
'wc_average_rating_',
'wc_rating_count_'
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);
if ( $post_id > 0 ) {
foreach( $post_transient_names as $transient ) {
$transients_to_clear[] = $transient . $post_id;
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}
} else {
foreach( $post_transient_names as $transient ) {
$wpdb->query( $wpdb->prepare( "DELETE FROM `$wpdb->options` WHERE `option_name` LIKE %s OR `option_name` LIKE %s", '_transient_' . $transient . '%', '_transient_timeout_' . $transient . '%' ) );
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}
}
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// Delete transients
foreach( $transients_to_clear as $transient ) {
delete_transient( $transient );
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}
do_action( 'woocommerce_delete_product_transients', $post_id );
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}
/**
* 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() {
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global $wpdb;
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// Load from cache
$product_ids_on_sale = get_transient( 'wc_products_onsale' );
// Valid cache found
if ( false !== $product_ids_on_sale )
return $product_ids_on_sale;
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$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' )
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AND post.post_status = 'publish'
AND meta.meta_key = '_sale_price'
AND meta2.meta_key = '_price'
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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 )
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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 ) ) ) ) );
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set_transient( 'wc_products_onsale', $product_ids_on_sale, YEAR_IN_SECONDS );
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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 ) );
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set_transient( 'wc_featured_products', $featured_product_ids, YEAR_IN_SECONDS );
return $featured_product_ids;
}
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/**
* Filter to allow product_cat in the permalinks for products.
*
* @access public
* @param string $permalink The existing permalink URL.
* @param object $post
* @return string
*/
function wc_product_post_type_link( $permalink, $post ) {
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// 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 );
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/**
* 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' );
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}
/**
* Get the placeholder image
*
* @access public
* @return string
*/
function wc_placeholder_img( $size = 'shop_thumbnail' ) {
$dimensions = wc_get_image_size( $size );
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return apply_filters('woocommerce_placeholder_img', '<img src="' . wc_placeholder_img_src() . '" alt="Placeholder" width="' . esc_attr( $dimensions['width'] ) . '" class="woocommerce-placeholder wp-post-image" height="' . esc_attr( $dimensions['height'] ) . '" />' );
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}
/**
* Variation Formatting
*
* Gets a formatted version of variation data or item meta
*
* @access public
* @param string $variation (default: '')
* @param bool $flat (default: false)
* @return string
*/
function wc_get_formatted_variation( $variation = '', $flat = false ) {
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if ( is_array( $variation ) ) {
if ( ! $flat )
$return = '<dl class="variation">';
else
$return = '';
$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;
}
if ( $flat )
$variation_list[] = wc_attribute_label(str_replace('attribute_', '', $name)).': '.$value;
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else
$variation_list[] = '<dt>'.wc_attribute_label(str_replace('attribute_', '', $name)).':</dt><dd>'.$value.'</dd>';
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}
if ( $flat )
$return .= implode( ', ', $variation_list );
else
$return .= implode( '', $variation_list );
if ( ! $flat )
$return .= '</dl>';
return $return;
}
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return '';
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}
/**
* Function which handles the start and end of scheduled sales via cron.
*
* @access public
* @return void
*/
function wc_scheduled_sales() {
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global $wpdb;
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// 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', '' );
}
wc_delete_product_transients( $product_id );
$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' );
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// Grouped products need syncing via a function
$this_product = get_product( $product_id );
if ( $this_product->is_type( 'simple' ) )
$this_product->grouped_product_sync();
wc_delete_product_transients( $parent );
}
}
}
// 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', '' );
wc_delete_product_transients( $product_id );
$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 = get_product( $product_id );
if ( $this_product->is_type( 'simple' ) )
$this_product->grouped_product_sync();
wc_delete_product_transients( $parent );
}
}
}
}
add_action( 'woocommerce_scheduled_sales', 'wc_scheduled_sales' );
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/**
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* wc_get_attachment_image_attributes function.
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*
* @access public
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* @param array $attr
* @return array
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*/
function wc_get_attachment_image_attributes( $attr ) {
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if ( strstr( $attr['src'], 'woocommerce_uploads/' ) )
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$attr['src'] = wc_placeholder_img_src();
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return $attr;
}
add_filter( 'wp_get_attachment_image_attributes', 'wc_get_attachment_image_attributes' );
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/**
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* wc_prepare_attachment_for_js function.
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*
* @access public
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* @param array $response
* @return array
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*/
function wc_prepare_attachment_for_js( $response ) {
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if ( isset( $response['url'] ) && strstr( $response['url'], 'woocommerce_uploads/' ) ) {
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$response['full']['url'] = wc_placeholder_img_src();
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if ( isset( $response['sizes'] ) ) {
foreach( $response['sizes'] as $size => $value ) {
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$response['sizes'][ $size ]['url'] = wc_placeholder_img_src();
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}
}
}
return $response;
}
add_filter( 'wp_prepare_attachment_for_js', 'wc_prepare_attachment_for_js' );
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/**
* Track product views
*/
function wc_track_product_view() {
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if ( ! is_singular( 'product' ) )
return;
global $post, $product;
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 ) );
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}
add_action( 'template_redirect', 'wc_track_product_view', 20 );