513 lines
15 KiB
PHP
513 lines
15 KiB
PHP
<?php
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/**
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* WooCommerce product variation class.
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*
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* @package WooCommerce/Classes
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*/
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if ( ! defined( 'ABSPATH' ) ) {
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exit;
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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 3.0.0
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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_Simple {
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/**
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* Post type.
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*
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* @var string
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*/
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protected $post_type = 'product_variation';
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/**
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* Parent data.
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*
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* @var array
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*/
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protected $parent_data = array(
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'title' => '',
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'sku' => '',
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'manage_stock' => '',
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'backorders' => '',
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'stock_quantity' => '',
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'weight' => '',
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'length' => '',
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'width' => '',
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'height' => '',
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'tax_class' => '',
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'shipping_class_id' => '',
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'image_id' => '',
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'purchase_note' => '',
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);
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/**
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* Override the default constructor to set custom defaults.
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*
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* @param int|WC_Product|object $product Product to init.
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*/
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public function __construct( $product = 0 ) {
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$this->data['tax_class'] = 'parent';
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parent::__construct( $product );
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}
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/**
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* Prefix for action and filter hooks on data.
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*
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* @since 3.0.0
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* @return string
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*/
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protected function get_hook_prefix() {
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return 'woocommerce_product_variation_get_';
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}
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/**
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* Get internal type.
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*
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* @return string
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*/
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public function get_type() {
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return 'variation';
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}
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/**
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* If the stock level comes from another product ID.
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*
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* @since 3.0.0
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* @return int
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*/
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public function get_stock_managed_by_id() {
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return 'parent' === $this->get_manage_stock() ? $this->get_parent_id() : $this->get_id();
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}
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/**
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* Get the product's title. For variations this is the parent product name.
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*
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* @return string
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*/
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public function get_title() {
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return apply_filters( 'woocommerce_product_title', $this->parent_data['title'], $this );
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}
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/**
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* Get product name with SKU or ID. Used within admin.
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*
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* @return string Formatted product name
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*/
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public function get_formatted_name() {
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if ( $this->get_sku() ) {
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$identifier = $this->get_sku();
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} else {
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$identifier = '#' . $this->get_id();
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}
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$formatted_variation_list = wc_get_formatted_variation( $this, true, true, true );
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return sprintf( '%2$s (%1$s)', $identifier, $this->get_name() ) . '<span class="description">' . $formatted_variation_list . '</span>';
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}
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/**
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* Get variation attribute values. Keys are prefixed with attribute_, as stored.
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*
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* @return array of attributes and their values for this variation
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*/
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public function get_variation_attributes() {
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$attributes = $this->get_attributes();
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$variation_attributes = array();
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foreach ( $attributes as $key => $value ) {
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$variation_attributes[ 'attribute_' . $key ] = $value;
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}
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return $variation_attributes;
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}
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/**
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* Returns a single product attribute as a string.
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*
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* @param string $attribute to get.
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* @return string
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*/
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public function get_attribute( $attribute ) {
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$attributes = $this->get_attributes();
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$attribute = sanitize_title( $attribute );
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if ( isset( $attributes[ $attribute ] ) ) {
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$value = $attributes[ $attribute ];
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$term = taxonomy_exists( $attribute ) ? get_term_by( 'slug', $value, $attribute ) : false;
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$value = ! is_wp_error( $term ) && $term ? $term->name : $value;
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} elseif ( isset( $attributes[ 'pa_' . $attribute ] ) ) {
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$value = $attributes[ 'pa_' . $attribute ];
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$term = taxonomy_exists( 'pa_' . $attribute ) ? get_term_by( 'slug', $value, 'pa_' . $attribute ) : false;
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$value = ! is_wp_error( $term ) && $term ? $term->name : $value;
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} else {
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return '';
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}
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return $value;
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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 array|null $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( $item_object = null ) {
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$url = get_permalink( $this->get_parent_id() );
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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 ), $this->get_variation_attributes() );
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} else {
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$data = $this->get_variation_attributes();
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}
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return add_query_arg( array_map( 'urlencode', array_filter( $data ) ), $url );
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}
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/**
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* Get the add to url used mainly in loops.
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*
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* @return string
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*/
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public function add_to_cart_url() {
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$url = $this->is_purchasable() ? remove_query_arg( 'added-to-cart', add_query_arg( array( 'variation_id' => $this->get_id(), 'add-to-cart' => $this->get_parent_id() ), $this->get_permalink() ) ) : $this->get_permalink();
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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 SKU (Stock-keeping unit) - product unique ID.
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*
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* @param string $context What the value is for. Valid values are view and edit.
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* @return string
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*/
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public function get_sku( $context = 'view' ) {
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$value = $this->get_prop( 'sku', $context );
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// Inherit value from parent.
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if ( 'view' === $context && empty( $value ) ) {
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$value = apply_filters( $this->get_hook_prefix() . 'sku', $this->parent_data['sku'], $this );
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}
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return $value;
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}
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/**
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* Returns the product's weight.
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*
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* @param string $context What the value is for. Valid values are view and edit.
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* @return string
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*/
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public function get_weight( $context = 'view' ) {
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$value = $this->get_prop( 'weight', $context );
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// Inherit value from parent.
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if ( 'view' === $context && empty( $value ) ) {
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$value = apply_filters( $this->get_hook_prefix() . 'weight', $this->parent_data['weight'], $this );
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}
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return $value;
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}
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/**
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* Returns the product length.
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*
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* @param string $context What the value is for. Valid values are view and edit.
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* @return string
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*/
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public function get_length( $context = 'view' ) {
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$value = $this->get_prop( 'length', $context );
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// Inherit value from parent.
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if ( 'view' === $context && empty( $value ) ) {
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$value = apply_filters( $this->get_hook_prefix() . 'length', $this->parent_data['length'], $this );
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}
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return $value;
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}
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/**
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* Returns the product width.
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*
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* @param string $context What the value is for. Valid values are view and edit.
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* @return string
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*/
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public function get_width( $context = 'view' ) {
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$value = $this->get_prop( 'width', $context );
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// Inherit value from parent.
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if ( 'view' === $context && empty( $value ) ) {
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$value = apply_filters( $this->get_hook_prefix() . 'width', $this->parent_data['width'], $this );
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}
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return $value;
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}
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/**
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* Returns the product height.
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*
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* @param string $context What the value is for. Valid values are view and edit.
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* @return string
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*/
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public function get_height( $context = 'view' ) {
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$value = $this->get_prop( 'height', $context );
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// Inherit value from parent.
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if ( 'view' === $context && empty( $value ) ) {
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$value = apply_filters( $this->get_hook_prefix() . 'height', $this->parent_data['height'], $this );
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}
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return $value;
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}
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/**
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* Returns the tax class.
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*
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* Does not use get_prop so it can handle 'parent' Inheritance correctly.
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*
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* @param string $context view, edit, or unfiltered.
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* @return string
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*/
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public function get_tax_class( $context = 'view' ) {
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$value = null;
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if ( array_key_exists( 'tax_class', $this->data ) ) {
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$value = array_key_exists( 'tax_class', $this->changes ) ? $this->changes['tax_class'] : $this->data['tax_class'];
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if ( 'edit' !== $context && 'parent' === $value ) {
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$value = $this->parent_data['tax_class'];
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}
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if ( 'view' === $context ) {
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$value = apply_filters( $this->get_hook_prefix() . 'tax_class', $value, $this );
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}
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}
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return $value;
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}
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/**
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* Return if product manage stock.
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*
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* @since 3.0.0
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* @param string $context What the value is for. Valid values are view and edit.
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* @return boolean|string true, false, or parent.
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*/
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public function get_manage_stock( $context = 'view' ) {
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$value = $this->get_prop( 'manage_stock', $context );
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// Inherit value from parent.
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if ( 'view' === $context && false === $value && true === wc_string_to_bool( $this->parent_data['manage_stock'] ) ) {
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$value = 'parent';
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}
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return $value;
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}
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/**
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* Returns number of items available for sale.
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*
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* @param string $context What the value is for. Valid values are view and edit.
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* @return int|null
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*/
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public function get_stock_quantity( $context = 'view' ) {
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$value = $this->get_prop( 'stock_quantity', $context );
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// Inherit value from parent.
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if ( 'view' === $context && 'parent' === $this->get_manage_stock() ) {
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$value = apply_filters( $this->get_hook_prefix() . 'stock_quantity', $this->parent_data['stock_quantity'], $this );
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}
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return $value;
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}
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/**
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* Get backorders.
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*
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* @param string $context What the value is for. Valid values are view and edit.
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* @since 3.0.0
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* @return string yes no or notify
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*/
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public function get_backorders( $context = 'view' ) {
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$value = $this->get_prop( 'backorders', $context );
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// Inherit value from parent.
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if ( 'view' === $context && 'parent' === $this->get_manage_stock() ) {
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$value = apply_filters( $this->get_hook_prefix() . 'backorders', $this->parent_data['backorders'], $this );
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}
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return $value;
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}
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/**
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* Get main image ID.
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*
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* @since 3.0.0
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* @param string $context What the value is for. Valid values are view and edit.
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* @return string
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*/
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public function get_image_id( $context = 'view' ) {
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$image_id = $this->get_prop( 'image_id', $context );
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if ( 'view' === $context && ! $image_id ) {
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$image_id = apply_filters( $this->get_hook_prefix() . 'image_id', $this->parent_data['image_id'], $this );
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}
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return $image_id;
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}
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/**
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* Get purchase note.
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*
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* @since 3.0.0
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* @param string $context What the value is for. Valid values are view and edit.
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* @return string
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*/
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public function get_purchase_note( $context = 'view' ) {
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$value = $this->get_prop( 'purchase_note', $context );
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// Inherit value from parent.
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if ( 'view' === $context && empty( $value ) ) {
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$value = apply_filters( $this->get_hook_prefix() . 'purchase_note', $this->parent_data['purchase_note'], $this );
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}
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return $value;
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}
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/**
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* Get shipping class ID.
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*
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* @since 3.0.0
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* @param string $context What the value is for. Valid values are view and edit.
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* @return int
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*/
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public function get_shipping_class_id( $context = 'view' ) {
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$shipping_class_id = $this->get_prop( 'shipping_class_id', $context );
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if ( 'view' === $context && ! $shipping_class_id ) {
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$shipping_class_id = apply_filters( $this->get_hook_prefix() . 'shipping_class_id', $this->parent_data['shipping_class_id'], $this );
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}
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return $shipping_class_id;
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}
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/**
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* Get catalog visibility.
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*
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* @param string $context What the value is for. Valid values are view and edit.
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* @return string
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*/
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public function get_catalog_visibility( $context = 'view' ) {
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return apply_filters( $this->get_hook_prefix() . 'catalog_visibility', $this->parent_data['catalog_visibility'], $this );
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}
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/*
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|--------------------------------------------------------------------------
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| CRUD methods
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|--------------------------------------------------------------------------
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*/
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/**
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* Set the parent data array for this variation.
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*
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* @since 3.0.0
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* @param array $parent_data parent data array for this variation.
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*/
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public function set_parent_data( $parent_data ) {
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$this->parent_data = $parent_data;
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}
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/**
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* Get the parent data array for this variation.
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*
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* @since 3.0.0
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* @return array
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*/
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public function get_parent_data() {
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return $this->parent_data;
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}
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/**
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* Set attributes. Unlike the parent product which uses terms, variations are assigned
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* specific attributes using name value pairs.
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*
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* @param array $raw_attributes array of raw attributes.
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*/
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public function set_attributes( $raw_attributes ) {
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$raw_attributes = (array) $raw_attributes;
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$attributes = array();
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foreach ( $raw_attributes as $key => $value ) {
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// Remove attribute prefix which meta gets stored with.
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if ( 0 === strpos( $key, 'attribute_' ) ) {
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$key = substr( $key, 10 );
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}
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$attributes[ $key ] = $value;
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}
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$this->set_prop( 'attributes', $attributes );
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}
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/**
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* Returns whether or not the product has any visible attributes.
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*
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* Variations are mapped to specific attributes unlike products, and the return
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* value of ->get_attributes differs. Therefore this returns false.
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*
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* @return boolean
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*/
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public function has_attributes() {
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return false;
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}
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/*
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|--------------------------------------------------------------------------
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| Conditionals
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|--------------------------------------------------------------------------
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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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return apply_filters( 'woocommerce_variation_is_purchasable', $this->variation_is_visible() && parent::is_purchasable() && ( 'publish' === $this->parent_data['status'] || current_user_can( 'edit_post', $this->get_parent_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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* 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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return apply_filters( 'woocommerce_variation_is_visible', 'publish' === get_post_status( $this->get_id() ) && '' !== $this->get_price(), $this->get_id(), $this->get_parent_id(), $this );
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}
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/**
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* Return valid tax classes. Adds 'parent' to the default list of valid tax classes.
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*
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* @return array valid tax classes
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*/
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protected function get_valid_tax_classes() {
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$valid_classes = WC_Tax::get_tax_class_slugs();
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$valid_classes[] = 'parent';
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return $valid_classes;
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}
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}
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