624 lines
20 KiB
PHP
624 lines
20 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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* Constructor
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*
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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 the add to cart button text
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*
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* @access public
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* @return string
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*/
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public function add_to_cart_text() {
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return apply_filters( 'woocommerce_product_add_to_cart_text', __( 'Select options', 'woocommerce' ), $this );
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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 = max( 0, wc_stock_amount( $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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if ( 'yes' === get_post_meta( $child_id, '_manage_stock', true ) ) {
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$stock = get_post_meta( $child_id, '_stock', true );
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$this->total_stock += max( 0, wc_stock_amount( $stock ) );
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}
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}
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}
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set_transient( $transient_name, $this->total_stock, YEAR_IN_SECONDS );
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}
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}
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return wc_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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* @param string $mode can be set, add, or subtract
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* @return int Stock
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*/
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public function set_stock( $amount = null, $mode = 'set' ) {
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$this->total_stock = '';
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delete_transient( 'wc_product_total_stock_' . $this->id );
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return parent::set_stock( $amount, $mode );
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}
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/**
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* Performed after a stock level change at product level
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*/
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protected function check_stock_status() {
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$set_child_stock_status = '';
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if ( ! $this->backorders_allowed() && $this->get_stock_quantity() <= get_option( 'woocommerce_notify_no_stock_amount' ) ) {
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$set_child_stock_status = 'outofstock';
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} elseif ( $this->backorders_allowed() || $this->get_stock_quantity() > get_option( 'woocommerce_notify_no_stock_amount' ) ) {
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$set_child_stock_status = 'instock';
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}
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if ( $set_child_stock_status ) {
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foreach ( $this->get_children() as $child_id ) {
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if ( 'yes' !== get_post_meta( $child_id, '_manage_stock', true ) ) {
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wc_update_product_stock_status( $child_id, $set_child_stock_status );
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}
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}
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// Children statuses changed, so sync self
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self::sync_stock_status( $this->id );
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}
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}
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/**
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* set_stock_status function.
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*
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* @access public
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* @return void
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*/
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public function set_stock_status( $status ) {
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$status = ( 'outofstock' === $status ) ? 'outofstock' : 'instock';
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if ( update_post_meta( $this->id, '_stock_status', $status ) ) {
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do_action( 'woocommerce_product_set_stock_status', $this->id, $status );
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}
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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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* @param boolean $visible_only Only return variations which are not hidden
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* @return array of children ids
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*/
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public function get_children( $visible_only = false ) {
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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( $transient_name ) ) ) {
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$args = array(
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'post_parent' => $this->id,
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'post_type' => 'product_variation',
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'orderby' => 'menu_order',
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'order' => 'ASC',
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'fields' => 'ids',
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'post_status' => 'any',
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'numberposts' => -1
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);
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$this->children = get_posts( $args );
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set_transient( $transient_name, $this->children, YEAR_IN_SECONDS );
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}
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}
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if ( $visible_only ) {
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$children = array();
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foreach( $this->children as $child_id ) {
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if ( 'yes' === get_post_meta( $child_id, '_manage_stock', true ) ) {
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if ( 'instock' === get_post_meta( $child_id, '_stock_status', true ) ) {
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$children[] = $child_id;
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}
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} elseif ( $this->is_in_stock() ) {
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$children[] = $child_id;
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}
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}
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} else {
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$children = $this->children;
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}
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return $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( true ) 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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* @param boolean $display Whether the value is going to be displayed
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* @return string
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*/
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public function get_variation_regular_price( $min_or_max = 'min', $display = false ) {
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$variation_id = get_post_meta( $this->id, '_' . $min_or_max . '_regular_price_variation_id', true );
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if ( ! $variation_id ) {
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return false;
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}
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$price = get_post_meta( $variation_id, '_regular_price', true );
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if ( $display ) {
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$variation = $this->get_child( $variation_id );
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$tax_display_mode = get_option( 'woocommerce_tax_display_shop' );
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$price = $tax_display_mode == 'incl' ? $variation->get_price_including_tax( 1, $price ) : $variation->get_price_excluding_tax( 1, $price );
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}
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return apply_filters( 'woocommerce_get_variation_regular_price', $price, $this, $min_or_max, $display );
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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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* @param boolean $display Whether the value is going to be displayed
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* @return string
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*/
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public function get_variation_sale_price( $min_or_max = 'min', $display = false ) {
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$variation_id = get_post_meta( $this->id, '_' . $min_or_max . '_sale_price_variation_id', true );
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if ( ! $variation_id ) {
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return false;
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}
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$price = get_post_meta( $variation_id, '_sale_price', true );
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if ( $display ) {
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$variation = $this->get_child( $variation_id );
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$tax_display_mode = get_option( 'woocommerce_tax_display_shop' );
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$price = $tax_display_mode == 'incl' ? $variation->get_price_including_tax( 1, $price ) : $variation->get_price_excluding_tax( 1, $price );
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}
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return apply_filters( 'woocommerce_get_variation_sale_price', $price, $this, $min_or_max, $display );
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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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* @param boolean $display Whether the value is going to be displayed
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* @return string
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*/
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public function get_variation_price( $min_or_max = 'min', $display = false ) {
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$variation_id = get_post_meta( $this->id, '_' . $min_or_max . '_price_variation_id', true );
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if ( $display ) {
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$variation = $this->get_child( $variation_id );
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if ( $variation ) {
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$tax_display_mode = get_option( 'woocommerce_tax_display_shop' );
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$price = $tax_display_mode == 'incl' ? $variation->get_price_including_tax() : $variation->get_price_excluding_tax();
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} else {
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$price = '';
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}
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} else {
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$price = get_post_meta( $variation_id, '_price', true );
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}
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return apply_filters( 'woocommerce_get_variation_price', $price, $this, $min_or_max, $display );
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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_regular_price( 'min' ) === false || $this->get_variation_price( 'min' ) === false || $this->get_variation_price( 'min' ) === '' || $this->get_price() === '' ) {
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$this->variable_product_sync( $this->id );
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}
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// Get the price
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if ( $this->get_price() === '' ) {
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$price = apply_filters( 'woocommerce_variable_empty_price_html', '', $this );
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} else {
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// Main price
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$prices = array( $this->get_variation_price( 'min', true ), $this->get_variation_price( 'max', true ) );
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$price = $prices[0] !== $prices[1] ? sprintf( _x( '%1$s–%2$s', 'Price range: from-to', 'woocommerce' ), wc_price( $prices[0] ), wc_price( $prices[1] ) ) : wc_price( $prices[0] );
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// Sale
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$prices = array( $this->get_variation_regular_price( 'min', true ), $this->get_variation_regular_price( 'max', true ) );
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sort( $prices );
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$saleprice = $prices[0] !== $prices[1] ? sprintf( _x( '%1$s–%2$s', 'Price range: from-to', 'woocommerce' ), wc_price( $prices[0] ), wc_price( $prices[1] ) ) : wc_price( $prices[0] );
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if ( $price !== $saleprice ) {
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$price = apply_filters( 'woocommerce_variable_sale_price_html', $this->get_price_html_from_to( $saleprice, $price ) . $this->get_price_suffix(), $this );
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} else {
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$price = apply_filters( 'woocommerce_variable_price_html', $price . $this->get_price_suffix(), $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 $child_id ) {
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$variation = $this->get_child( $child_id );
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if ( ! empty( $variation->variation_id ) ) {
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if ( ! $variation->variation_is_visible() )
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continue; // Disabled or hidden
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$child_variation_attributes = $variation->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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}
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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( WC_DELIMITER, $attribute['value'] ) );
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}
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$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( WC_DELIMITER, $attribute['value'] ) );
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$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 ) || ( 'yes' === get_option( 'woocommerce_hide_out_of_stock_items' ) && ! $variation->is_in_stock() ) ) {
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continue;
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}
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$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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'variation_is_visible' => $variation->variation_is_visible(),
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'is_purchasable' => $variation->is_purchasable(),
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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' => $variation->get_price() === "" || $this->get_variation_price( 'min' ) !== $this->get_variation_price( 'max' ) ? '<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' => $variation->backorders_allowed() ? '' : $variation->stock,
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'backorders_allowed' => $variation->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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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 = '' ) {
|
|
if ( empty( $product_id ) )
|
|
$product_id = $this->id;
|
|
|
|
// Sync prices with children
|
|
self::sync( $product_id );
|
|
|
|
// Re-load prices
|
|
$this->price = get_post_meta( $product_id, '_price', true );
|
|
|
|
foreach ( array( 'price', 'regular_price', 'sale_price' ) as $price_type ) {
|
|
$min_variation_id_key = "min_{$price_type}_variation_id";
|
|
$max_variation_id_key = "max_{$price_type}_variation_id";
|
|
$min_price_key = "_min_variation_{$price_type}";
|
|
$max_price_key = "_max_variation_{$price_type}";
|
|
$this->$min_variation_id_key = get_post_meta( $product_id, '_' . $min_variation_id_key, true );
|
|
$this->$max_variation_id_key = get_post_meta( $product_id, '_' . $max_variation_id_key, true );
|
|
$this->$min_price_key = get_post_meta( $product_id, '_' . $min_price_key, true );
|
|
$this->$max_price_key = get_post_meta( $product_id, '_' . $max_price_key, true );
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Sync variable product stock status with children
|
|
* @param int $product_id
|
|
*/
|
|
public static function sync_stock_status( $product_id ) {
|
|
$children = get_posts( array(
|
|
'post_parent' => $product_id,
|
|
'posts_per_page'=> -1,
|
|
'post_type' => 'product_variation',
|
|
'fields' => 'ids',
|
|
'post_status' => 'publish'
|
|
) );
|
|
|
|
$stock_status = 'outofstock';
|
|
|
|
foreach ( $children as $child_id ) {
|
|
$child_stock_status = get_post_meta( $child_id, '_stock_status', true );
|
|
$child_stock_status = $child_stock_status ? $child_stock_status : 'instock';
|
|
if ( 'instock' === $child_stock_status ) {
|
|
$stock_status = 'instock';
|
|
break;
|
|
}
|
|
}
|
|
|
|
wc_update_product_stock_status( $product_id, $stock_status );
|
|
}
|
|
|
|
/**
|
|
* Sync the variable product with it's children
|
|
*/
|
|
public static function sync( $product_id ) {
|
|
global $wpdb;
|
|
|
|
$children = get_posts( array(
|
|
'post_parent' => $product_id,
|
|
'posts_per_page'=> -1,
|
|
'post_type' => 'product_variation',
|
|
'fields' => 'ids',
|
|
'post_status' => 'publish'
|
|
) );
|
|
|
|
// No published variations - update parent post status. Use $wpdb to prevent endless loop on save_post hooks.
|
|
if ( ! $children && get_post_status( $product_id ) == 'publish' ) {
|
|
$wpdb->update( $wpdb->posts, array( 'post_status' => 'draft' ), array( 'ID' => $product_id ) );
|
|
|
|
if ( is_admin() ) {
|
|
WC_Admin_Meta_Boxes::add_error( __( 'This variable product has no active variations so cannot be published. Changing status to draft.', 'woocommerce' ) );
|
|
}
|
|
|
|
// Loop the variations
|
|
} else {
|
|
// Main active prices
|
|
$min_price = null;
|
|
$max_price = null;
|
|
$min_price_id = null;
|
|
$max_price_id = null;
|
|
|
|
// Regular prices
|
|
$min_regular_price = null;
|
|
$max_regular_price = null;
|
|
$min_regular_price_id = null;
|
|
$max_regular_price_id = null;
|
|
|
|
// Sale prices
|
|
$min_sale_price = null;
|
|
$max_sale_price = null;
|
|
$min_sale_price_id = null;
|
|
$max_sale_price_id = null;
|
|
|
|
foreach ( array( 'price', 'regular_price', 'sale_price' ) as $price_type ) {
|
|
foreach ( $children as $child_id ) {
|
|
$child_price = get_post_meta( $child_id, '_' . $price_type, true );
|
|
|
|
// Skip non-priced variations
|
|
if ( $child_price === '' ) {
|
|
continue;
|
|
}
|
|
|
|
// Skip hidden variations
|
|
if ( 'yes' === get_option( 'woocommerce_hide_out_of_stock_items' ) ) {
|
|
$stock = get_post_meta( $child_id, '_stock', true );
|
|
if ( $stock !== "" && $stock <= get_option( 'woocommerce_notify_no_stock_amount' ) ) {
|
|
continue;
|
|
}
|
|
}
|
|
|
|
// Find min price
|
|
if ( is_null( ${"min_{$price_type}"} ) || $child_price < ${"min_{$price_type}"} ) {
|
|
${"min_{$price_type}"} = $child_price;
|
|
${"min_{$price_type}_id"} = $child_id;
|
|
}
|
|
|
|
// Find max price
|
|
if ( $child_price > ${"max_{$price_type}"} ) {
|
|
${"max_{$price_type}"} = $child_price;
|
|
${"max_{$price_type}_id"} = $child_id;
|
|
}
|
|
}
|
|
|
|
// Store prices
|
|
update_post_meta( $product_id, '_min_variation_' . $price_type, ${"min_{$price_type}"} );
|
|
update_post_meta( $product_id, '_max_variation_' . $price_type, ${"max_{$price_type}"} );
|
|
|
|
// Store ids
|
|
update_post_meta( $product_id, '_min_' . $price_type . '_variation_id', ${"min_{$price_type}_id"} );
|
|
update_post_meta( $product_id, '_max_' . $price_type . '_variation_id', ${"max_{$price_type}_id"} );
|
|
}
|
|
|
|
// The VARIABLE PRODUCT price should equal the min price of any type
|
|
update_post_meta( $product_id, '_price', $min_price );
|
|
delete_transient( 'wc_products_onsale' );
|
|
|
|
do_action( 'woocommerce_variable_product_sync', $product_id, $children );
|
|
}
|
|
}
|
|
}
|