493 lines
16 KiB
PHP
493 lines
16 KiB
PHP
<?php
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if ( ! defined( 'ABSPATH' ) ) exit; // Exit if accessed directly
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/**
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* Variable Product Class
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*
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* The WooCommerce product class handles individual product data.
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*
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* @class WC_Product_Variable
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* @version 2.0.0
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* @package WooCommerce/Classes/Products
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* @category Class
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* @author WooThemes
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*/
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class WC_Product_Variable extends WC_Product {
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/** @public array Array of child products/posts/variations. */
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public $children;
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/** @public string The product's total stock, including that of its children. */
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public $total_stock;
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/**
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* __construct function.
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*
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* @access public
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* @param mixed $product
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*/
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public function __construct( $product ) {
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$this->product_type = 'variable';
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parent::__construct( $product );
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}
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/**
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* Get total stock.
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*
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* This is the stock of parent and children combined.
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*
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* @access public
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* @return int
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*/
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public function get_total_stock() {
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if ( empty( $this->total_stock ) ) {
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$transient_name = 'wc_product_total_stock_' . $this->id;
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if ( false === ( $this->total_stock = get_transient( $transient_name ) ) ) {
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$this->total_stock = $this->stock;
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if ( sizeof( $this->get_children() ) > 0 ) {
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foreach ($this->get_children() as $child_id) {
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$stock = get_post_meta( $child_id, '_stock', true );
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if ( $stock != '' ) {
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$this->total_stock += intval( $stock );
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}
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}
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}
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set_transient( $transient_name, $this->total_stock );
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}
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}
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return apply_filters( 'woocommerce_stock_amount', $this->total_stock );
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}
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/**
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* Set stock level of the product.
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*
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* @param mixed $amount (default: null)
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* @return int Stock
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*/
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function set_stock( $amount = null ) {
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// Empty total stock so its refreshed
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$this->total_stock = '';
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// Call parent set_stock
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return parent::set_stock( $amount );
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}
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/**
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* Return the products children posts.
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*
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* @access public
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* @return array
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*/
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public function get_children() {
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if ( ! is_array( $this->children ) ) {
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$this->children = array();
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$transient_name = 'wc_product_children_ids_' . $this->id;
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if ( false === ( $this->children = get_transient( $transient_name ) ) ) {
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$this->children = get_posts( 'post_parent=' . $this->id . '&post_type=product_variation&orderby=menu_order&order=ASC&fields=ids&post_status=any&numberposts=-1' );
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set_transient( $transient_name, $this->children );
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}
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}
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return (array) $this->children;
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}
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/**
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* get_child function.
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*
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* @access public
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* @param mixed $child_id
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* @return object WC_Product or WC_Product_variation
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*/
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public function get_child( $child_id ) {
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return get_product( $child_id, array(
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'parent_id' => $this->id,
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'parent' => $this
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) );
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}
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/**
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* Returns whether or not the product has any child product.
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*
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* @access public
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* @return bool
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*/
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public function has_child() {
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return sizeof( $this->get_children() ) ? true : false;
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}
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/**
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* Returns whether or not the product is on sale.
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*
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* @access public
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* @return bool
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*/
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public function is_on_sale() {
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if ( $this->has_child() ) {
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foreach ( $this->get_children() as $child_id ) {
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$price = get_post_meta( $child_id, '_price', true );
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$sale_price = get_post_meta( $child_id, '_sale_price', true );
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if ( $sale_price !== "" && $sale_price >= 0 && $sale_price == $price )
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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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* Get the min or max variation regular price.
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* @param string $min_or_max - min or max
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* @return string
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*/
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public function get_variation_regular_price( $min_or_max = 'min' ) {
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$get = $min_or_max . '_variation_regular_price';
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return apply_filters( 'woocommerce_get_variation_regular_price', $this->$get, $this );
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}
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/**
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* Get the min or max variation sale price.
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* @param string $min_or_max - min or max
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* @return string
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*/
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public function get_variation_sale_price( $min_or_max = 'min' ) {
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$get = $min_or_max . '_variation_sale_price';
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return apply_filters( 'woocommerce_get_variation_sale_price', $this->$get, $this );
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}
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/**
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* Get the min or max variation (active) price.
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* @param string $min_or_max - min or max
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* @return string
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*/
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public function get_variation_price( $min_or_max = 'min' ) {
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$get = $min_or_max . '_variation_price';
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return apply_filters( 'woocommerce_get_variation_price', $this->$get, $this );
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}
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/**
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* Returns the price in html format.
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*
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* @access public
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* @param string $price (default: '')
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* @return string
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*/
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public function get_price_html( $price = '' ) {
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// Ensure variation prices are synced with variations
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if ( $this->get_variation_price( 'max' ) === '' || $this->get_price() === '' )
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$this->variable_product_sync( $this->id );
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$tax_display_mode = get_option( 'woocommerce_tax_display_shop' );
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$display_price = $tax_display_mode == 'incl' ? $this->get_price_including_tax() : $this->get_price_excluding_tax();
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$display_min_variation_regular_price = $tax_display_mode == 'incl' ? $this->get_price_including_tax( 1, $this->get_variation_regular_price( 'min' ) ) : $this->get_price_excluding_tax( 1, $this->get_variation_regular_price( 'min' ) );
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// Get the price
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if ( $this->get_price() > 0 ) {
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// Only show 'from' if the min price varies from the max price
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if ( $this->get_variation_price( 'min' ) !== $this->get_variation_price( 'max' ) )
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$price .= $this->get_price_html_from_text();
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if ( $this->is_on_sale() && $this->get_variation_regular_price( 'min' ) !== $this->get_price() ) {
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$price .= $this->get_price_html_from_to( $display_min_variation_regular_price, $display_price ) . $this->get_price_suffix();
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$price = apply_filters( 'woocommerce_variable_sale_price_html', $price, $this );
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} else {
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$price .= woocommerce_price( $display_price ) . $this->get_price_suffix();
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$price = apply_filters('woocommerce_variable_price_html', $price, $this);
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}
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} elseif ( $this->get_price() === '' ) {
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$price = apply_filters( 'woocommerce_variable_empty_price_html', '', $this );
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} elseif ( $this->get_price() == 0 ) {
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// Only show 'from' if the min price varies from the max price
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if ( $this->get_variation_price( 'min' ) !== $this->get_variation_price( 'max' ) )
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$price .= $this->get_price_html_from_text();
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if ( $this->is_on_sale() && $this->get_variation_regular_price( 'min' ) > 0 ) {
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$price .= $this->get_price_html_from_to( $display_min_variation_regular_price, __( 'Free!', 'woocommerce' ) );
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$price = apply_filters( 'woocommerce_variable_free_sale_price_html', $price, $this );
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} else {
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$price .= __( 'Free!', 'woocommerce' );
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$price = apply_filters( 'woocommerce_variable_free_price_html', $price, $this );
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}
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}
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return apply_filters( 'woocommerce_get_price_html', $price, $this );
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}
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/**
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* Return an array of attributes used for variations, as well as their possible values.
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*
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* @access public
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* @return array of attributes and their available values
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*/
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public function get_variation_attributes() {
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$variation_attributes = array();
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if ( ! $this->has_child() )
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return $variation_attributes;
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$attributes = $this->get_attributes();
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foreach ( $attributes as $attribute ) {
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if ( ! $attribute['is_variation'] )
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continue;
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$values = array();
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$attribute_field_name = 'attribute_' . sanitize_title( $attribute['name'] );
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foreach ( $this->get_children() as $child_id ) {
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if ( get_post_status( $child_id ) != 'publish' )
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continue; // Disabled
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$child = $this->get_child( $child_id );
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$child_variation_attributes = $child->get_variation_attributes();
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foreach ( $child_variation_attributes as $name => $value )
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if ( $name == $attribute_field_name )
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$values[] = sanitize_title( $value );
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}
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// empty value indicates that all options for given attribute are available
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if ( in_array( '', $values ) ) {
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$values = array();
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// Get all options
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if ( $attribute['is_taxonomy'] ) {
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$post_terms = wp_get_post_terms( $this->id, $attribute['name'] );
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foreach ( $post_terms as $term )
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$values[] = $term->slug;
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} else {
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$values = array_map( 'trim', explode( '|', $attribute['value'] ) );
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}
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$values = array_unique( $values );
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// Order custom attributes (non taxonomy) as defined
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} elseif ( ! $attribute['is_taxonomy'] ) {
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$option_names = array_map( 'trim', explode( '|', $attribute['value'] ) );
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$option_slugs = $values;
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$values = array();
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foreach ( $option_names as $option_name ) {
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if ( in_array( sanitize_title( $option_name ), $option_slugs ) )
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$values[] = $option_name;
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}
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}
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$variation_attributes[ $attribute['name'] ] = array_unique( $values );
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}
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return $variation_attributes;
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}
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/**
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* If set, get the default attributes for a variable product.
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*
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* @access public
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* @return array
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*/
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public function get_variation_default_attributes() {
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$default = isset( $this->default_attributes ) ? $this->default_attributes : '';
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return apply_filters( 'woocommerce_product_default_attributes', (array) maybe_unserialize( $default ), $this );
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}
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/**
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* Get an array of available variations for the current product.
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*
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* @access public
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* @return array
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*/
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public function get_available_variations() {
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$available_variations = array();
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foreach ( $this->get_children() as $child_id ) {
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$variation = $this->get_child( $child_id );
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if ( ! empty( $variation->variation_id ) ) {
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if ( ! $variation->variation_is_visible() )
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continue; // Disabled or hidden
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$variation_attributes = $variation->get_variation_attributes();
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$availability = $variation->get_availability();
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$availability_html = empty( $availability['availability'] ) ? '' : apply_filters( 'woocommerce_stock_html', '<p class="stock ' . esc_attr( $availability['class'] ) . '">'. wp_kses_post( $availability['availability'] ).'</p>', wp_kses_post( $availability['availability'] ) );
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if ( has_post_thumbnail( $variation->get_variation_id() ) ) {
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$attachment_id = get_post_thumbnail_id( $variation->get_variation_id() );
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$attachment = wp_get_attachment_image_src( $attachment_id, apply_filters( 'single_product_large_thumbnail_size', 'shop_single' ) );
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$image = $attachment ? current( $attachment ) : '';
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$attachment = wp_get_attachment_image_src( $attachment_id, 'full' );
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$image_link = $attachment ? current( $attachment ) : '';
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$image_title = get_the_title( $attachment_id );
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$image_alt = get_post_meta( $attachment_id, '_wp_attachment_image_alt', true );
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} else {
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$image = $image_link = $image_title = $image_alt = '';
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}
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$available_variations[] = apply_filters( 'woocommerce_available_variation', array(
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'variation_id' => $child_id,
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'attributes' => $variation_attributes,
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'image_src' => $image,
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'image_link' => $image_link,
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'image_title' => $image_title,
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'image_alt' => $image_alt,
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'price_html' => $this->min_variation_price != $this->max_variation_price ? '<span class="price">' . $variation->get_price_html() . '</span>' : '',
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'availability_html' => $availability_html,
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'sku' => $variation->get_sku(),
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'weight' => $variation->get_weight() . ' ' . esc_attr( get_option('woocommerce_weight_unit' ) ),
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'dimensions' => $variation->get_dimensions(),
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'min_qty' => 1,
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'max_qty' => $this->backorders_allowed() ? '' : $variation->stock,
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'backorders_allowed' => $this->backorders_allowed(),
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'is_in_stock' => $variation->is_in_stock(),
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'is_downloadable' => $variation->is_downloadable() ,
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'is_virtual' => $variation->is_virtual(),
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'is_sold_individually' => $variation->is_sold_individually() ? 'yes' : 'no',
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), $this, $variation );
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}
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}
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return $available_variations;
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}
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/**
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* Sync variable product prices with the children lowest/highest prices.
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*/
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public function variable_product_sync( $product_id = '' ) {
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if ( empty( $product_id ) )
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$product_id = $this->id;
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self::sync( $product_id );
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}
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/**
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* Sync variable product prices with the children lowest/highest prices.
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*/
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public static function sync( $product_id ) {
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$children = get_posts( array(
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'post_parent' => $product_id,
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'posts_per_page'=> -1,
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'post_type' => 'product_variation',
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'fields' => 'ids',
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'post_status' => 'publish'
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));
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$min_variation_price = $min_variation_regular_price = $min_variation_sale_price = $max_variation_price = $max_variation_regular_price = $max_variation_sale_price = '';
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if ( $children ) {
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foreach ( $children as $child ) {
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$child_price = get_post_meta( $child, '_price', true );
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$child_regular_price = get_post_meta( $child, '_regular_price', true );
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$child_sale_price = get_post_meta( $child, '_sale_price', true );
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if ( $child_price === '' && $child_regular_price === '' )
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continue;
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// Regular prices
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if ( $child_regular_price !== '' ) {
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if ( ! is_numeric( $min_variation_regular_price ) || $child_regular_price < $min_variation_regular_price )
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$min_variation_regular_price = $child_regular_price;
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if ( ! is_numeric( $max_variation_regular_price ) || $child_regular_price > $max_variation_regular_price )
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$max_variation_regular_price = $child_regular_price;
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}
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// Sale prices
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if ( $child_sale_price !== '' ) {
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if ( $child_price == $child_sale_price ) {
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if ( ! is_numeric( $min_variation_sale_price ) || $child_sale_price < $min_variation_sale_price )
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$min_variation_sale_price = $child_sale_price;
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if ( ! is_numeric( $max_variation_sale_price ) || $child_sale_price > $max_variation_sale_price )
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$max_variation_sale_price = $child_sale_price;
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}
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}
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// Actual prices
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if ( $child_price !== '' ) {
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if ( $child_price > $max_variation_price )
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$max_variation_price = $child_price;
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if ( $min_variation_price === '' || $child_price < $min_variation_price )
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$min_variation_price = $child_price;
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}
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}
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update_post_meta( $product_id, '_price', $min_variation_price );
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update_post_meta( $product_id, '_min_variation_price', $min_variation_price );
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update_post_meta( $product_id, '_max_variation_price', $max_variation_price );
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update_post_meta( $product_id, '_min_variation_regular_price', $min_variation_regular_price );
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update_post_meta( $product_id, '_max_variation_regular_price', $max_variation_regular_price );
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update_post_meta( $product_id, '_min_variation_sale_price', $min_variation_sale_price );
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update_post_meta( $product_id, '_max_variation_sale_price', $max_variation_sale_price );
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// Update object if exists
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if ( isset( $this ) ) {
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$this->price = $min_variation_price;
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$this->min_variation_price = $min_variation_price;
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$this->max_variation_price = $max_variation_price;
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$this->min_variation_regular_price = $min_variation_regular_price;
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$this->max_variation_regular_price = $max_variation_regular_price;
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$this->min_variation_sale_price = $min_variation_sale_price;
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$this->max_variation_sale_price = $max_variation_sale_price;
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}
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do_action( 'woocommerce_variable_product_sync', $product_id );
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wc_delete_product_transients( $product_id );
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}
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}
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} |