woocommerce/classes/class-wc-product-grouped.php

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<?php
/**
* Grouped Product Class
*
* Grouped products cannot be purchased - they are wrappers for other products.
*
* @class WC_Product_Grouped
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* @version 2.0.0
* @package WooCommerce/Classes/Products
* @author WooThemes
*/
if ( ! defined( 'ABSPATH' ) ) exit; // Exit if accessed directly
class WC_Product_Grouped extends WC_Product {
/** @var array Array of child products/posts/variations. */
var $children;
/** @var string The product's total stock, including that of its children. */
var $total_stock;
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/**
* __construct function.
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*
* @access public
* @param mixed $product
* @param array $args Contains arguments to set up this product
*/
function __construct( $product, $args ) {
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parent::__construct( $product );
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$this->product_type = 'grouped';
$this->product_custom_fields = get_post_custom( $this->id );
$this->downloadable = 'no';
$this->virtual = 'no';
$this->stock = '';
$this->stock_status = 'instock';
$this->manage_stock = 'no';
$this->weight = '';
$this->length = '';
$this->width = '';
$this->height = '';
// Load data from custom fields
$this->load_product_data( array(
'sku' => '',
'price' => '',
'visibility' => 'hidden',
'sale_price' => '',
'regular_price' => '',
'upsell_ids' => array(),
'crosssell_ids' => array(),
'featured' => 'no'
) );
}
/**
* Get total stock.
*
* This is the stock of parent and children combined.
*
* @access public
* @return int
*/
function get_total_stock() {
if ( is_null( $this->total_stock ) ) {
$transient_name = 'wc_product_total_stock_' . $this->id;
if ( false === ( $this->total_stock = get_transient( $transient_name ) ) ) {
$this->total_stock = $this->stock;
if ( sizeof( $this->get_children() ) > 0 ) {
foreach ($this->get_children() as $child_id) {
$stock = get_post_meta( $child_id, '_stock', true );
if ( $stock != '' ) {
$this->total_stock += intval( $stock );
}
}
}
set_transient( $transient_name, $this->total_stock );
}
}
return apply_filters( 'woocommerce_stock_amount', $this->total_stock );
}
/**
* Return the products children posts.
*
* @access public
* @return array
*/
function get_children() {
if ( ! is_array( $this->children ) ) {
$this->children = array();
$transient_name = 'wc_product_children_ids_' . $this->id;
if ( false === ( $this->children = get_transient( $transient_name ) ) ) {
$this->children = get_posts( 'post_parent=' . $this->id . '&post_type=product&orderby=menu_order&order=ASC&fields=ids&post_status=any&numberposts=-1' );
set_transient( $transient_name, $this->children );
}
}
return (array) $this->children;
}
/**
* get_child function.
*
* @access public
* @param mixed $child_id
* @return object WC_Product or WC_Product_variation
*/
function get_child( $child_id ) {
return get_product( $child_id );
}
/**
* Returns whether or not the product has any child product.
*
* @access public
* @return bool
*/
function has_child() {
return sizeof( $this->get_children() ) ? true : false;
}
/**
* Returns whether or not the product is on sale.
*
* @access public
* @return bool
*/
function is_on_sale() {
if ( $this->has_child() ) {
foreach ( $this->get_children() as $child_id ) {
$sale_price = get_post_meta( $child_id, '_sale_price', true );
if ( $sale_price !== "" && $sale_price >= 0 )
return true;
}
} else {
if ( $this->sale_price && $this->sale_price == $this->price )
return true;
}
return false;
}
/**
* Returns false if the product cannot be bought.
*
* @access public
* @return cool
*/
function is_purchasable() {
return apply_filters( 'woocommerce_is_purchasable', false, $this );
}
/**
* Returns the price in html format.
*
* @access public
* @param string $price (default: '')
* @return string
*/
function get_price_html( $price = '' ) {
$child_prices = array();
foreach ( $this->get_children() as $child_id )
$child_prices[] = get_post_meta( $child_id, '_price', true );
$child_prices = array_unique( $child_prices );
if ( ! empty( $child_prices ) ) {
$min_price = min( $child_prices );
} else {
$min_price = '';
}
if ( sizeof( $child_prices ) > 1 ) $price .= $this->get_price_html_from_text();
$price .= woocommerce_price( $min_price );
$price = apply_filters( 'woocommerce_grouped_price_html', $price, $this );
return apply_filters( 'woocommerce_get_price_html', $price, $this );
}
}