woocommerce/includes/class-wc-product-variation.php

462 lines
13 KiB
PHP

<?php
if ( ! defined( 'ABSPATH' ) ) {
exit;
}
/**
* Product Variation Class.
*
* The WooCommerce product variation class handles product variation data.
*
* @class WC_Product_Variation
* @version 3.0.0
* @package WooCommerce/Classes
* @category Class
* @author WooThemes
*/
class WC_Product_Variation extends WC_Product_Simple {
/**
* Post type.
* @var string
*/
public $post_type = 'product_variation';
/**
* Parent data.
* @var array
*/
protected $parent_data = array(
'title' => '',
'sku' => '',
'manage_stock' => '',
'backorders' => '',
'stock_quantity' => '',
'weight' => '',
'length' => '',
'width' => '',
'height' => '',
'tax_class' => '',
'shipping_class_id' => '',
'image_id' => '',
'purchase_note' => '',
);
/**
* Prefix for action and filter hooks on data.
*
* @since 3.0.0
* @return string
*/
protected function get_hook_prefix() {
return 'woocommerce_product_variation_get_';
}
/**
* Get internal type.
* @return string
*/
public function get_type() {
return 'variation';
}
/**
* If the stock level comes from another product ID.
* @since 3.0.0
* @return int
*/
public function get_stock_managed_by_id() {
return 'parent' === $this->get_manage_stock() ? $this->get_parent_id() : $this->get_id();
}
/**
* Get the product's title. For variations this is the parent product name.
*
* @return string
*/
public function get_title() {
return apply_filters( 'woocommerce_product_title', $this->parent_data['title'], $this );
}
/**
* Get variation attribute values. Keys are prefixed with attribute_, as stored.
*
* @return array of attributes and their values for this variation
*/
public function get_variation_attributes() {
$attributes = $this->get_attributes();
$variation_attributes = array();
foreach ( $attributes as $key => $value ) {
$variation_attributes[ 'attribute_' . $key ] = $value;
}
return $variation_attributes;
}
/**
* Returns a single product attribute as a string.
* @param string $attribute to get.
* @return string
*/
public function get_attribute( $attribute ) {
$attributes = $this->get_attributes();
$attribute = sanitize_title( $attribute );
if ( isset( $attributes[ $attribute ] ) ) {
$value = $attributes[ $attribute ];
$term = taxonomy_exists( $attribute ) ? get_term_by( 'slug', $value, $attribute ) : false;
$value = ! is_wp_error( $term ) && $term ? $term->name : $value;
} elseif ( isset( $attributes[ 'pa_' . $attribute ] ) ) {
$value = $attributes[ 'pa_' . $attribute ];
$term = taxonomy_exists( 'pa_' . $attribute ) ? get_term_by( 'slug', $value, 'pa_' . $attribute ) : false;
$value = ! is_wp_error( $term ) && $term ? $term->name : $value;
} else {
return '';
}
return $value;
}
/**
* Wrapper for get_permalink. Adds this variations attributes to the URL.
*
* @param $item_object item array If a cart or order item is passed, we can get a link containing the exact attributes selected for the variation, rather than the default attributes.
* @return string
*/
public function get_permalink( $item_object = null ) {
$url = get_permalink( $this->get_parent_id() );
if ( ! empty( $item_object['variation'] ) ) {
$data = $item_object['variation'];
} elseif ( ! empty( $item_object['item_meta_array'] ) ) {
$data_keys = array_map( 'wc_variation_attribute_name', wp_list_pluck( $item_object['item_meta_array'], 'key' ) );
$data_values = wp_list_pluck( $item_object['item_meta_array'], 'value' );
$data = array_intersect_key( array_combine( $data_keys, $data_values ), $this->get_variation_attributes() );
} else {
$data = $this->get_variation_attributes();
}
return add_query_arg( array_map( 'urlencode', array_filter( $data ) ), $url );
}
/**
* Get the add to url used mainly in loops.
*
* @return string
*/
public function add_to_cart_url() {
$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();
return apply_filters( 'woocommerce_product_add_to_cart_url', $url, $this );
}
/**
* Get SKU (Stock-keeping unit) - product unique ID.
*
* @param string $context
* @return string
*/
public function get_sku( $context = 'view' ) {
$value = $this->get_prop( 'sku', $context );
// Inherit value from parent.
if ( 'view' === $context && empty( $value ) ) {
$value = apply_filters( $this->get_hook_prefix() . 'sku', $this->parent_data['sku'], $this );
}
return $value;
}
/**
* Returns the product's weight.
*
* @param string $context
* @return string
*/
public function get_weight( $context = 'view' ) {
$value = $this->get_prop( 'weight', $context );
// Inherit value from parent.
if ( 'view' === $context && empty( $value ) ) {
$value = apply_filters( $this->get_hook_prefix() . 'weight', $this->parent_data['weight'], $this );
}
return $value;
}
/**
* Returns the product length.
*
* @param string $context
* @return string
*/
public function get_length( $context = 'view' ) {
$value = $this->get_prop( 'length', $context );
// Inherit value from parent.
if ( 'view' === $context && empty( $value ) ) {
$value = apply_filters( $this->get_hook_prefix() . 'length', $this->parent_data['length'], $this );
}
return $value;
}
/**
* Returns the product width.
*
* @param string $context
* @return string
*/
public function get_width( $context = 'view' ) {
$value = $this->get_prop( 'width', $context );
// Inherit value from parent.
if ( 'view' === $context && empty( $value ) ) {
$value = apply_filters( $this->get_hook_prefix() . 'width', $this->parent_data['width'], $this );
}
return $value;
}
/**
* Returns the product height.
*
* @param string $context
* @return string
*/
public function get_height( $context = 'view' ) {
$value = $this->get_prop( 'height', $context );
// Inherit value from parent.
if ( 'view' === $context && empty( $value ) ) {
$value = apply_filters( $this->get_hook_prefix() . 'height', $this->parent_data['height'], $this );
}
return $value;
}
/**
* Returns the tax class.
*
* Does not use get_prop so it can handle 'parent' Inheritance correctly.
*
* @param string $context view, edit, or unfiltered
* @return string
*/
public function get_tax_class( $context = 'view' ) {
$value = null;
if ( array_key_exists( 'tax_class', $this->data ) ) {
$value = array_key_exists( 'tax_class', $this->changes ) ? $this->changes['tax_class'] : $this->data['tax_class'];
if ( 'edit' !== $context && 'parent' === $value ) {
$value = $this->parent_data['tax_class'];
}
if ( 'view' === $context ) {
$value = apply_filters( $this->get_hook_prefix() . 'tax_class', $value, $this );
}
}
return $value;
}
/**
* Return if product manage stock.
*
* @since 3.0.0
* @param string $context
* @return boolean|string true, false, or parent.
*/
public function get_manage_stock( $context = 'view' ) {
$value = $this->get_prop( 'manage_stock', $context );
// Inherit value from parent.
if ( 'view' === $context && false === $value && true === wc_string_to_bool( $this->parent_data['manage_stock'] ) ) {
$value = 'parent';
}
return $value;
}
/**
* Returns number of items available for sale.
*
* @param string $context
* @return int|null
*/
public function get_stock_quantity( $context = 'view' ) {
$value = $this->get_prop( 'stock_quantity', $context );
// Inherit value from parent.
if ( 'view' === $context && 'parent' === $this->get_manage_stock() ) {
$value = apply_filters( $this->get_hook_prefix() . 'stock_quantity', $this->parent_data['stock_quantity'], $this );
}
return $value;
}
/**
* Get backorders.
*
* @param string $context
* @since 3.0.0
* @return string yes no or notify
*/
public function get_backorders( $context = 'view' ) {
$value = $this->get_prop( 'backorders', $context );
// Inherit value from parent.
if ( 'view' === $context && 'parent' === $this->get_manage_stock() ) {
$value = apply_filters( $this->get_hook_prefix() . 'backorders', $this->parent_data['backorders'], $this );
}
return $value;
}
/**
* Get main image ID.
*
* @since 3.0.0
* @param string $context
* @return string
*/
public function get_image_id( $context = 'view' ) {
$image_id = $this->get_prop( 'image_id', $context );
if ( 'view' === $context && ! $image_id ) {
$image_id = apply_filters( $this->get_hook_prefix() . 'image_id', $this->parent_data['image_id'], $this );
}
return $image_id;
}
/**
* Get purchase note.
*
* @since 3.0.0
* @param string $context
* @return string
*/
public function get_purchase_note( $context = 'view' ) {
$value = $this->get_prop( 'purchase_note', $context );
// Inherit value from parent.
if ( 'view' === $context && empty( $value ) ) {
$value = apply_filters( $this->get_hook_prefix() . 'purchase_note', $this->parent_data['purchase_note'], $this );
}
return $value;
}
/**
* Get shipping class ID.
*
* @since 3.0.0
* @param string $context
* @return int
*/
public function get_shipping_class_id( $context = 'view' ) {
$shipping_class_id = $this->get_prop( 'shipping_class_id', $context );
if ( 'view' === $context && ! $shipping_class_id ) {
$shipping_class_id = apply_filters( $this->get_hook_prefix() . 'shipping_class_id', $this->parent_data['shipping_class_id'], $this );
}
return $shipping_class_id;
}
/*
|--------------------------------------------------------------------------
| CRUD methods
|--------------------------------------------------------------------------
*/
/**
* Set the parent data array for this variation.
*
* @since 3.0.0
* @param array
*/
public function set_parent_data( $parent_data ) {
$this->parent_data = $parent_data;
}
/**
* Get the parent data array for this variation.
*
* @since 3.0.0
* @return array
*/
public function get_parent_data() {
return $this->parent_data;
}
/**
* Set attributes. Unlike the parent product which uses terms, variations are assigned
* specific attributes using name value pairs.
* @param array $raw_attributes
*/
public function set_attributes( $raw_attributes ) {
$raw_attributes = (array) $raw_attributes;
$attributes = array();
foreach ( $raw_attributes as $key => $value ) {
// Remove attribute prefix which meta gets stored with.
if ( 0 === strpos( $key, 'attribute_' ) ) {
$key = substr( $key, 10 );
}
$attributes[ $key ] = $value;
}
$this->set_prop( 'attributes', $attributes );
}
/**
* Returns array of attribute name value pairs. Keys are prefixed with attribute_, as stored.
*
* @param string $context
* @return array
*/
public function get_attributes( $context = 'view' ) {
return $this->get_prop( 'attributes', $context );
}
/**
* Returns whether or not the product has any visible attributes.
*
* Variations are mapped to specific attributes unlike products, and the return
* value of ->get_attributes differs. Therefore this returns false.
*
* @return boolean
*/
public function has_attributes() {
return false;
}
/*
|--------------------------------------------------------------------------
| Conditionals
|--------------------------------------------------------------------------
*/
/**
* Returns false if the product cannot be bought.
* 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.
*
* @return bool
*/
public function is_purchasable() {
return apply_filters( 'woocommerce_variation_is_purchasable', $this->variation_is_visible() && parent::is_purchasable(), $this );
}
/**
* Controls whether this particular variation will appear greyed-out (inactive) or not (active).
* Used by extensions to make incompatible variations appear greyed-out, etc.
* Other possible uses: prevent out-of-stock variations from being selected.
*
* @return bool
*/
public function variation_is_active() {
return apply_filters( 'woocommerce_variation_is_active', true, $this );
}
/**
* Checks if this particular variation is visible. Invisible variations are enabled and can be selected, but no price / stock info is displayed.
* Instead, a suitable 'unavailable' message is displayed.
* Invisible by default: Disabled variations and variations with an empty price.
*
* @return bool
*/
public function variation_is_visible() {
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 );
}
}