737 lines
23 KiB
PHP
737 lines
23 KiB
PHP
<?php
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if ( ! defined( 'ABSPATH' ) ) {
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exit; // Exit if accessed directly
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}
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/**
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* Product Variation Class.
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*
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* The WooCommerce product variation class handles product variation data.
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*
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* @class WC_Product_Variation
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* @version 2.2.0
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* @package WooCommerce/Classes
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* @category Class
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* @author WooThemes
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*/
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class WC_Product_Variation extends WC_Product {
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/** @public int ID of the variation itself. */
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public $variation_id;
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/** @public object Parent Variable product object. */
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public $parent;
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/** @public string Stores the shipping class of the variation. */
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public $variation_shipping_class = '';
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/** @public int Stores the shipping class ID of the variation. */
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public $variation_shipping_class_id = 0;
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/** @public unused vars @deprecated in 2.2 */
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public $variation_has_sku = true;
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public $variation_has_length = true;
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public $variation_has_width = true;
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public $variation_has_height = true;
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public $variation_has_weight = true;
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public $variation_has_tax_class = true;
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public $variation_has_downloadable_files = true;
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/** @private array Data which is only at variation level - no inheritance plus their default values if left blank. */
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protected $variation_level_meta_data = array(
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'downloadable' => 'no',
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'virtual' => 'no',
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'manage_stock' => 'no',
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'sale_price_dates_from' => '',
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'sale_price_dates_to' => '',
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'price' => '',
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'regular_price' => '',
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'sale_price' => '',
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'stock' => 0,
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'stock_status' => 'instock',
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'downloadable_files' => array(),
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);
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/** @private array Data which can be at variation level, otherwise fallback to parent if not set. */
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protected $variation_inherited_meta_data = array(
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'tax_class' => '',
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'backorders' => 'no',
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'sku' => '',
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'weight' => '',
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'length' => '',
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'width' => '',
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'height' => '',
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);
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/**
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* Loads required variation data.
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*
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* @param int $variation ID of the variation to load
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* @param array $args Array of the arguments containing parent product data
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*/
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public function __construct( $variation, $args = array() ) {
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if ( is_object( $variation ) ) {
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$this->variation_id = absint( $variation->ID );
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} else {
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$this->variation_id = absint( $variation );
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}
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/* Get main product data from parent (args) */
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$this->id = ! empty( $args['parent_id'] ) ? intval( $args['parent_id'] ) : wp_get_post_parent_id( $this->variation_id );
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// The post doesn't have a parent id, therefore its invalid and we should prevent this being created.
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if ( empty( $this->id ) ) {
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throw new Exception( sprintf( 'No parent product set for variation #%d', $this->variation_id ), 422 );
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}
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$this->product_type = 'variation';
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$this->parent = ! empty( $args['parent'] ) ? $args['parent'] : wc_get_product( $this->id );
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$this->post = ! empty( $this->parent->post ) ? $this->parent->post : array();
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// The post parent is not a valid variable product so we should prevent this being created.
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if ( ! is_a( $this->parent, 'WC_Product' ) ) {
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throw new Exception( sprintf( 'Invalid parent for variation #%d', $this->variation_id ), 422 );
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}
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}
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/**
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* __isset function.
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*
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* @param mixed $key
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* @return bool
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*/
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public function __isset( $key ) {
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if ( in_array( $key, array( 'variation_data', 'variation_has_stock' ) ) ) {
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return true;
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} elseif ( in_array( $key, array_keys( $this->variation_level_meta_data ) ) ) {
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return metadata_exists( 'post', $this->variation_id, '_' . $key );
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} elseif ( in_array( $key, array_keys( $this->variation_inherited_meta_data ) ) ) {
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return metadata_exists( 'post', $this->variation_id, '_' . $key ) || metadata_exists( 'post', $this->id, '_' . $key );
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} else {
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return metadata_exists( 'post', $this->id, '_' . $key );
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}
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}
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/**
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* Get method returns variation meta data if set, otherwise in most cases the data from the parent.
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*
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* @param string $key
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* @return mixed
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*/
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public function __get( $key ) {
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if ( in_array( $key, array_keys( $this->variation_level_meta_data ) ) ) {
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$value = get_post_meta( $this->variation_id, '_' . $key, true );
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if ( '' === $value ) {
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$value = $this->variation_level_meta_data[ $key ];
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}
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} elseif ( in_array( $key, array_keys( $this->variation_inherited_meta_data ) ) ) {
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$value = metadata_exists( 'post', $this->variation_id, '_' . $key ) ? get_post_meta( $this->variation_id, '_' . $key, true ) : get_post_meta( $this->id, '_' . $key, true );
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// Handle meta data keys which can be empty at variation level to cause inheritance
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if ( '' === $value && in_array( $key, array( 'sku', 'weight', 'length', 'width', 'height' ) ) ) {
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$value = get_post_meta( $this->id, '_' . $key, true );
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}
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if ( '' === $value ) {
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$value = $this->variation_inherited_meta_data[ $key ];
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}
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} elseif ( 'variation_data' === $key ) {
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return $this->variation_data = wc_get_product_variation_attributes( $this->variation_id );
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} elseif ( 'variation_has_stock' === $key ) {
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return $this->managing_stock();
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} else {
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$value = metadata_exists( 'post', $this->variation_id, '_' . $key ) ? get_post_meta( $this->variation_id, '_' . $key, true ) : parent::__get( $key );
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}
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return $value;
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}
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/**
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* Return the variation ID
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*
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* @since 2.5.0
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* @return int variation (post) ID
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*/
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public function get_id() {
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return $this->variation_id;
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}
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/**
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* Returns whether or not the product post exists.
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*
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* @return bool
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*/
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public function exists() {
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return ! empty( $this->id );
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}
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/**
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* Wrapper for get_permalink. Adds this variations attributes to the URL.
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*
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* @param $item_object item array If a cart or order item is passed, we can get a link containing the exact attributes selected for the variation, rather than the default attributes.
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* @return string
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*/
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public function get_permalink( $item_object = null ) {
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if ( ! empty( $item_object['variation'] ) ) {
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$data = $item_object['variation'];
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} elseif ( ! empty( $item_object['item_meta_array'] ) ) {
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$data_keys = array_map( 'wc_variation_attribute_name', wp_list_pluck( $item_object['item_meta_array'], 'key' ) );
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$data_values = wp_list_pluck( $item_object['item_meta_array'], 'value' );
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$data = array_intersect_key( array_combine( $data_keys, $data_values ), $this->variation_data );
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} else {
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$data = $this->variation_data;
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}
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return add_query_arg( array_map( 'urlencode', array_filter( $data ) ), get_permalink( $this->id ) );
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}
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/**
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* Get the add to url used mainly in loops.
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*
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* @return string
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*/
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public function add_to_cart_url() {
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$variation_data = array_map( 'urlencode', $this->variation_data );
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$url = $this->is_purchasable() && $this->is_in_stock() ? remove_query_arg( 'added-to-cart', add_query_arg( array_merge( array( 'variation_id' => $this->variation_id, 'add-to-cart' => $this->id ), $variation_data ) ) ) : get_permalink( $this->id );
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return apply_filters( 'woocommerce_product_add_to_cart_url', $url, $this );
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}
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/**
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* Get the add to cart button text.
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*
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* @return string
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*/
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public function add_to_cart_text() {
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$text = $this->is_purchasable() && $this->is_in_stock() ? __( 'Add to cart', 'woocommerce' ) : __( 'Read more', 'woocommerce' );
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return apply_filters( 'woocommerce_product_add_to_cart_text', $text, $this );
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}
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/**
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* Checks if this particular variation is visible. Invisible variations are enabled and can be selected, but no price / stock info is displayed.
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* Instead, a suitable 'unavailable' message is displayed.
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* Invisible by default: Disabled variations and variations with an empty price.
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*
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* @return bool
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*/
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public function variation_is_visible() {
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$visible = true;
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if ( get_post_status( $this->variation_id ) != 'publish' ) {
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// Published == enabled checkbox
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$visible = false;
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} elseif ( $this->get_price() === "" ) {
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// Price not set
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$visible = false;
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}
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return apply_filters( 'woocommerce_variation_is_visible', $visible, $this->variation_id, $this->id, $this );
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}
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/**
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* Controls whether this particular variation will appear greyed-out (inactive) or not (active).
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* Used by extensions to make incompatible variations appear greyed-out, etc.
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* Other possible uses: prevent out-of-stock variations from being selected.
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*
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* @return bool
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*/
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public function variation_is_active() {
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return apply_filters( 'woocommerce_variation_is_active', true, $this );
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}
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/**
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* Returns false if the product cannot be bought.
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* Override abstract method so that: i) Disabled variations are not be purchasable by admins. ii) Enabled variations are not purchasable if the parent product is not purchasable.
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*
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* @return bool
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*/
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public function is_purchasable() {
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// Published == enabled checkbox
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if ( get_post_status( $this->variation_id ) != 'publish' ) {
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$purchasable = false;
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} else {
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$purchasable = parent::is_purchasable();
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}
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return apply_filters( 'woocommerce_variation_is_purchasable', $purchasable, $this );
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}
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/**
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* Returns whether or not the variations parent is visible.
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*
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* @return bool
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*/
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public function parent_is_visible() {
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return $this->is_visible();
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}
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/**
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* Get variation ID.
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*
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* @return int
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*/
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public function get_variation_id() {
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return absint( $this->variation_id );
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}
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/**
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* Get variation attribute values.
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*
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* @return array of attributes and their values for this variation
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*/
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public function get_variation_attributes() {
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return $this->variation_data;
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}
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/**
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* Check if all variation's attributes are set.
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*
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* @return boolean
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*/
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public function has_all_attributes_set() {
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$set = true;
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// undefined attributes have null strings as array values
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foreach ( $this->get_variation_attributes() as $att ) {
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if ( ! $att ) {
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$set = false;
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break;
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}
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}
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return $set;
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}
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/**
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* Get variation price HTML. Prices are not inherited from parents.
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*
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* @return string containing the formatted price
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*/
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public function get_price_html( $price = '' ) {
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$display_price = $this->get_display_price();
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$display_regular_price = $this->get_display_price( $this->get_regular_price() );
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$display_sale_price = $this->get_display_price( $this->get_sale_price() );
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if ( $this->get_price() !== '' ) {
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if ( $this->is_on_sale() ) {
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$price = apply_filters( 'woocommerce_variation_sale_price_html', '<del>' . wc_price( $display_regular_price ) . '</del> <ins>' . wc_price( $display_sale_price ) . '</ins>' . $this->get_price_suffix(), $this );
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} elseif ( $this->get_price() > 0 ) {
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$price = apply_filters( 'woocommerce_variation_price_html', wc_price( $display_price ) . $this->get_price_suffix(), $this );
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} else {
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$price = apply_filters( 'woocommerce_variation_free_price_html', __( 'Free!', 'woocommerce' ), $this );
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}
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} else {
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$price = apply_filters( 'woocommerce_variation_empty_price_html', '', $this );
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}
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return apply_filters( 'woocommerce_get_variation_price_html', $price, $this );
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}
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/**
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* Gets the main product image ID.
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*
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* @return int
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*/
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public function get_image_id() {
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if ( $this->variation_id && has_post_thumbnail( $this->variation_id ) ) {
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$image_id = get_post_thumbnail_id( $this->variation_id );
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} elseif ( has_post_thumbnail( $this->id ) ) {
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$image_id = get_post_thumbnail_id( $this->id );
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} elseif ( ( $parent_id = wp_get_post_parent_id( $this->id ) ) && has_post_thumbnail( $parent_id ) ) {
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$image_id = get_post_thumbnail_id( $parent_id );
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} else {
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$image_id = 0;
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}
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return $image_id;
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}
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/**
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* Gets the main product image.
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*
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* @param string $size (default: 'shop_thumbnail')
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* @param bool True to return $placeholder if no image is found, or false to return an empty string.
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* @return string
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*/
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public function get_image( $size = 'shop_thumbnail', $attr = array(), $placeholder = true ) {
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if ( $this->variation_id && has_post_thumbnail( $this->variation_id ) ) {
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$image = get_the_post_thumbnail( $this->variation_id, $size, $attr );
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} elseif ( has_post_thumbnail( $this->id ) ) {
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$image = get_the_post_thumbnail( $this->id, $size, $attr );
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} elseif ( ( $parent_id = wp_get_post_parent_id( $this->id ) ) && has_post_thumbnail( $parent_id ) ) {
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$image = get_the_post_thumbnail( $parent_id, $size , $attr );
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} elseif ( $placeholder ) {
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$image = wc_placeholder_img( $size );
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} else {
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$image = '';
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}
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return $image;
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}
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/**
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* Returns whether or not the product (or variation) is stock managed.
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*
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* @return bool|string Bool if managed at variation level, 'parent' if managed by the parent.
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*/
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public function managing_stock() {
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if ( 'yes' === get_option( 'woocommerce_manage_stock', 'yes' ) ) {
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if ( 'no' === $this->manage_stock ) {
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if ( $this->parent && $this->parent->managing_stock() ) {
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return 'parent';
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}
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} else {
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return true;
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}
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}
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return false;
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}
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/**
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* Returns number of items available for sale from the variation, or parent.
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*
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* @return int
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*/
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public function get_stock_quantity() {
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return apply_filters( 'woocommerce_variation_get_stock_quantity', true === $this->managing_stock() ? wc_stock_amount( $this->stock ) : $this->parent->get_stock_quantity(), $this );
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}
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/**
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* Get total stock - This is the stock of parent and children combined.
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*
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* @return int
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*/
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public function get_total_stock() {
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return $this->get_stock_quantity();
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}
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/**
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* Returns the tax status. Always use parent data.
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*
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* @return string
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*/
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public function get_tax_status() {
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return $this->parent->get_tax_status();
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}
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/**
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* Returns whether or not the product is in stock.
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*
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* @return bool
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*/
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public function is_in_stock() {
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return apply_filters( 'woocommerce_variation_is_in_stock', 'instock' === $this->stock_status, $this );
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}
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/**
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* Set stock level of the product variation.
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*
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* Uses queries rather than update_post_meta so we can do this in one query (to avoid stock issues).
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* We cannot rely on the original loaded value in case another order was made since then.
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*
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* @param int $amount
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* @param string $mode can be set, add, or subtract
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* @return int new stock level
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*/
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public function set_stock( $amount = null, $mode = 'set' ) {
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global $wpdb;
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if ( ! is_null( $amount ) && true === $this->managing_stock() ) {
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// Ensure key exists
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add_post_meta( $this->variation_id, '_stock', 0, true );
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// Update stock in DB directly
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switch ( $mode ) {
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case 'add' :
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$wpdb->query( $wpdb->prepare( "UPDATE {$wpdb->postmeta} SET meta_value = meta_value + %f WHERE post_id = %d AND meta_key='_stock'", $amount, $this->variation_id ) );
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break;
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case 'subtract' :
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$wpdb->query( $wpdb->prepare( "UPDATE {$wpdb->postmeta} SET meta_value = meta_value - %f WHERE post_id = %d AND meta_key='_stock'", $amount, $this->variation_id ) );
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break;
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default :
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$wpdb->query( $wpdb->prepare( "UPDATE {$wpdb->postmeta} SET meta_value = %f WHERE post_id = %d AND meta_key='_stock'", $amount, $this->variation_id ) );
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break;
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}
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// Clear caches
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wp_cache_delete( $this->variation_id, 'post_meta' );
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// Clear total stock transient
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delete_transient( 'wc_product_total_stock_' . $this->id . WC_Cache_Helper::get_transient_version( 'product' ) );
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// Stock status
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$this->check_stock_status();
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// Sync the parent
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WC_Product_Variable::sync( $this->id );
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// Trigger action
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do_action( 'woocommerce_variation_set_stock', $this );
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// If not managing stock and clearing the stock meta, trigger action to indicate that stock has changed (infinite stock)
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} elseif ( '' === $amount ) {
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|
|
if ( false !== get_post_meta( $this->variation_id, '_stock' ) ) {
|
|
|
|
delete_post_meta( $this->variation_id, '_stock' );
|
|
// Trigger action
|
|
do_action( 'woocommerce_variation_set_stock', $this );
|
|
}
|
|
|
|
// If not managing stock and setting stock, apply changes to the parent
|
|
} elseif ( ! is_null( $amount ) ) {
|
|
return $this->parent->set_stock( $amount, $mode );
|
|
}
|
|
|
|
return $this->get_stock_quantity();
|
|
}
|
|
|
|
/**
|
|
* Set stock status.
|
|
*
|
|
* @param string $status
|
|
*/
|
|
public function set_stock_status( $status ) {
|
|
$status = 'outofstock' === $status ? 'outofstock' : 'instock';
|
|
|
|
// Sanity check
|
|
if ( true === $this->managing_stock() ) {
|
|
if ( ! $this->backorders_allowed() && $this->get_stock_quantity() <= get_option( 'woocommerce_notify_no_stock_amount' ) ) {
|
|
$status = 'outofstock';
|
|
}
|
|
} elseif ( 'parent' === $this->managing_stock() ) {
|
|
if ( ! $this->parent->backorders_allowed() && $this->parent->get_stock_quantity() <= get_option( 'woocommerce_notify_no_stock_amount' ) ) {
|
|
$status = 'outofstock';
|
|
}
|
|
}
|
|
|
|
if ( update_post_meta( $this->variation_id, '_stock_status', $status ) ) {
|
|
do_action( 'woocommerce_variation_set_stock_status', $this->variation_id, $status );
|
|
|
|
WC_Product_Variable::sync_stock_status( $this->id );
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Reduce stock level of the product.
|
|
*
|
|
* @param int $amount (default: 1) Amount to reduce by
|
|
* @return int stock level
|
|
*/
|
|
public function reduce_stock( $amount = 1 ) {
|
|
if ( true === $this->managing_stock() ) {
|
|
return $this->set_stock( $amount, 'subtract' );
|
|
} else {
|
|
return $this->parent->reduce_stock( $amount );
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Increase stock level of the product.
|
|
*
|
|
* @param int $amount (default: 1) Amount to increase by
|
|
* @return int stock level
|
|
*/
|
|
public function increase_stock( $amount = 1 ) {
|
|
if ( true === $this->managing_stock() ) {
|
|
return $this->set_stock( $amount, 'add' );
|
|
} else {
|
|
return $this->parent->increase_stock( $amount );
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Returns whether or not the product needs to notify the customer on backorder.
|
|
*
|
|
* @return bool
|
|
*/
|
|
public function backorders_require_notification() {
|
|
if ( true === $this->managing_stock() ) {
|
|
return parent::backorders_require_notification();
|
|
} else {
|
|
return $this->parent->backorders_require_notification();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Is on backorder?
|
|
*
|
|
* @param int $qty_in_cart (default: 0)
|
|
* @return bool
|
|
*/
|
|
public function is_on_backorder( $qty_in_cart = 0 ) {
|
|
if ( true === $this->managing_stock() ) {
|
|
return parent::is_on_backorder( $qty_in_cart );
|
|
} else {
|
|
return $this->parent->managing_stock() && $this->parent->backorders_allowed() && ( $this->parent->get_stock_quantity() - $qty_in_cart ) < 0;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Returns whether or not the product has enough stock for the order.
|
|
*
|
|
* @param mixed $quantity
|
|
* @return bool
|
|
*/
|
|
public function has_enough_stock( $quantity ) {
|
|
if ( true === $this->managing_stock() ) {
|
|
return parent::has_enough_stock( $quantity );
|
|
} else {
|
|
return $this->parent->has_enough_stock( $quantity );
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Get the shipping class, and if not set, get the shipping class of the parent.
|
|
*
|
|
* @return string
|
|
*/
|
|
public function get_shipping_class() {
|
|
if ( ! $this->variation_shipping_class ) {
|
|
$classes = get_the_terms( $this->variation_id, 'product_shipping_class' );
|
|
|
|
if ( $classes && ! is_wp_error( $classes ) ) {
|
|
$this->variation_shipping_class = current( $classes )->slug;
|
|
} else {
|
|
$this->variation_shipping_class = parent::get_shipping_class();
|
|
}
|
|
}
|
|
return $this->variation_shipping_class;
|
|
}
|
|
|
|
/**
|
|
* Returns the product shipping class ID.
|
|
*
|
|
* @return int
|
|
*/
|
|
public function get_shipping_class_id() {
|
|
if ( ! $this->variation_shipping_class_id ) {
|
|
$classes = get_the_terms( $this->variation_id, 'product_shipping_class' );
|
|
|
|
if ( $classes && ! is_wp_error( $classes ) ) {
|
|
$this->variation_shipping_class_id = current( $classes )->term_id;
|
|
} else {
|
|
$this->variation_shipping_class_id = parent::get_shipping_class_id();
|
|
}
|
|
}
|
|
return absint( $this->variation_shipping_class_id );
|
|
}
|
|
|
|
/**
|
|
* Get formatted variation data with WC < 2.4 back compat and proper formatting of text-based attribute names.
|
|
*
|
|
* @return string
|
|
*/
|
|
public function get_formatted_variation_attributes( $flat = false ) {
|
|
$variation_data = $this->get_variation_attributes();
|
|
$attributes = $this->parent->get_attributes();
|
|
$description = array();
|
|
$return = '';
|
|
|
|
if ( is_array( $variation_data ) ) {
|
|
|
|
if ( ! $flat ) {
|
|
$return = '<dl class="variation">';
|
|
}
|
|
|
|
foreach ( $attributes as $attribute ) {
|
|
|
|
// Only deal with attributes that are variations
|
|
if ( ! $attribute['is_variation'] ) {
|
|
continue;
|
|
}
|
|
|
|
$variation_selected_value = isset( $variation_data[ 'attribute_' . sanitize_title( $attribute['name'] ) ] ) ? $variation_data[ 'attribute_' . sanitize_title( $attribute['name'] ) ] : '';
|
|
$description_name = esc_html( wc_attribute_label( $attribute['name'] ) );
|
|
$description_value = __( 'Any', 'woocommerce' );
|
|
|
|
// Get terms for attribute taxonomy or value if its a custom attribute
|
|
if ( $attribute['is_taxonomy'] ) {
|
|
|
|
$post_terms = get_the_terms( $this->id, $attribute['name'] );
|
|
|
|
foreach ( $post_terms as $term ) {
|
|
if ( $variation_selected_value === $term->slug ) {
|
|
$description_value = esc_html( apply_filters( 'woocommerce_variation_option_name', $term->name ) );
|
|
}
|
|
}
|
|
} else {
|
|
|
|
$options = wc_get_text_attributes( $attribute['value'] );
|
|
|
|
foreach ( $options as $option ) {
|
|
|
|
if ( sanitize_title( $variation_selected_value ) === $variation_selected_value ) {
|
|
if ( sanitize_title( $option ) !== $variation_selected_value ) {
|
|
continue;
|
|
}
|
|
} else {
|
|
if ( $variation_selected_value !== $option ) {
|
|
continue;
|
|
}
|
|
}
|
|
|
|
$description_value = esc_html( apply_filters( 'woocommerce_variation_option_name', $option ) );
|
|
}
|
|
}
|
|
|
|
if ( $flat ) {
|
|
$description[] = $description_name . ': ' . rawurldecode( $description_value );
|
|
} else {
|
|
$description[] = '<dt>' . $description_name . ':</dt><dd>' . rawurldecode( $description_value ) . '</dd>';
|
|
}
|
|
}
|
|
|
|
if ( $flat ) {
|
|
$return .= implode( ', ', $description );
|
|
} else {
|
|
$return .= implode( '', $description );
|
|
}
|
|
|
|
if ( ! $flat ) {
|
|
$return .= '</dl>';
|
|
}
|
|
}
|
|
|
|
return $return;
|
|
}
|
|
|
|
/**
|
|
* Get product name with extra details such as SKU, price and attributes. Used within admin.
|
|
*
|
|
* @return string Formatted product name, including attributes and price
|
|
*/
|
|
public function get_formatted_name() {
|
|
if ( $this->get_sku() ) {
|
|
$identifier = $this->get_sku();
|
|
} else {
|
|
$identifier = '#' . $this->variation_id;
|
|
}
|
|
|
|
$formatted_attributes = $this->get_formatted_variation_attributes( true );
|
|
$extra_data = ' – ' . $formatted_attributes . ' – ' . wc_price( $this->get_price() );
|
|
|
|
return sprintf( __( '%1$s – %2$s%3$s', 'woocommerce' ), $identifier, $this->get_title(), $extra_data );
|
|
}
|
|
|
|
/**
|
|
* Get product variation description.
|
|
*
|
|
* @return string
|
|
*/
|
|
public function get_variation_description() {
|
|
return wpautop( do_shortcode( wp_kses_post( get_post_meta( $this->variation_id, '_variation_description', true ) ) ) );
|
|
}
|
|
}
|