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<?php |
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/** |
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* Cart session handling class. |
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* |
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* @package WooCommerce/Classes |
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* @version 3.2.0 |
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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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* WC_Cart_Session class. |
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* |
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* @since 3.2.0 |
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*/ |
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final class WC_Cart_Session { |
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/** |
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* Reference to cart object. |
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* |
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* @since 3.2.0 |
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* @var WC_Cart |
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*/ |
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protected $cart; |
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/** |
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* Sets up the items provided, and calculate totals. |
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* |
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* @since 3.2.0 |
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* @throws Exception If missing WC_Cart object. |
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* |
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* @param WC_Cart $cart Cart object to calculate totals for. |
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*/ |
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public function __construct( &$cart ) { |
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if ( ! is_a( $cart, 'WC_Cart' ) ) { |
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throw new Exception( 'A valid WC_Cart object is required' ); |
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} |
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$this->cart = $cart; |
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} |
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/** |
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* Register methods for this object on the appropriate WordPress hooks. |
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*/ |
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public function init() { |
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add_action( 'wp_loaded', array( $this, 'get_cart_from_session' ) ); |
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add_action( 'woocommerce_cart_emptied', array( $this, 'destroy_cart_session' ) ); |
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add_action( 'woocommerce_after_calculate_totals', array( $this, 'set_session' ) ); |
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add_action( 'woocommerce_cart_loaded_from_session', array( $this, 'set_session' ) ); |
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add_action( 'woocommerce_removed_coupon', array( $this, 'set_session' ) ); |
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// Persistent cart stored to usermeta. |
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add_action( 'woocommerce_add_to_cart', array( $this, 'persistent_cart_update' ) ); |
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add_action( 'woocommerce_cart_item_removed', array( $this, 'persistent_cart_update' ) ); |
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add_action( 'woocommerce_cart_item_restored', array( $this, 'persistent_cart_update' ) ); |
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add_action( 'woocommerce_cart_item_set_quantity', array( $this, 'persistent_cart_update' ) ); |
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// Cookie events - cart cookies need to be set before headers are sent. |
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add_action( 'woocommerce_add_to_cart', array( $this, 'maybe_set_cart_cookies' ) ); |
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add_action( 'wp', array( $this, 'maybe_set_cart_cookies' ), 99 ); |
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add_action( 'shutdown', array( $this, 'maybe_set_cart_cookies' ), 0 ); |
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} |
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/** |
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* Get the cart data from the PHP session and store it in class variables. |
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* |
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* @since 3.2.0 |
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*/ |
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public function get_cart_from_session() { |
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do_action( 'woocommerce_load_cart_from_session' ); |
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$this->cart->set_totals( WC()->session->get( 'cart_totals', null ) ); |
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$this->cart->set_applied_coupons( WC()->session->get( 'applied_coupons', array() ) ); |
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$this->cart->set_coupon_discount_totals( WC()->session->get( 'coupon_discount_totals', array() ) ); |
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$this->cart->set_coupon_discount_tax_totals( WC()->session->get( 'coupon_discount_tax_totals', array() ) ); |
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$this->cart->set_removed_cart_contents( WC()->session->get( 'removed_cart_contents', array() ) ); |
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$update_cart_session = false; // Flag to indicate the stored cart should be updated. |
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$order_again = false; // Flag to indicate whether this is a re-order. |
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$cart = WC()->session->get( 'cart', null ); |
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$merge_saved_cart = (bool) get_user_meta( get_current_user_id(), '_woocommerce_load_saved_cart_after_login', true ); |
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// Merge saved cart with current cart. |
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if ( is_null( $cart ) || $merge_saved_cart ) { |
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$saved_cart = $this->get_saved_cart(); |
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$cart = is_null( $cart ) ? array() : $cart; |
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$cart = array_merge( $saved_cart, $cart ); |
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$update_cart_session = true; |
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delete_user_meta( get_current_user_id(), '_woocommerce_load_saved_cart_after_login' ); |
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} |
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// Populate cart from order. |
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if ( isset( $_GET['order_again'], $_GET['_wpnonce'] ) && is_user_logged_in() && wp_verify_nonce( wp_unslash( $_GET['_wpnonce'] ), 'woocommerce-order_again' ) ) { // WPCS: input var ok, sanitization ok. |
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$cart = $this->populate_cart_from_order( absint( $_GET['order_again'] ), $cart ); // WPCS: input var ok. |
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$order_again = true; |
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} |
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// Prime caches to reduce future queries. |
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if ( is_callable( '_prime_post_caches' ) ) { |
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_prime_post_caches( wp_list_pluck( $cart, 'product_id' ) ); |
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} |
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$cart_contents = array(); |
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foreach ( $cart as $key => $values ) { |
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if ( ! is_customize_preview() && 'customize-preview' === $key ) { |
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continue; |
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} |
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$product = wc_get_product( $values['variation_id'] ? $values['variation_id'] : $values['product_id'] ); |
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if ( empty( $product ) || ! $product->exists() || 0 >= $values['quantity'] ) { |
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continue; |
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} |
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/** |
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* Allow 3rd parties to validate this item before it's added to cart and add their own notices. |
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* |
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* @since 3.6.0 |
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* |
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* @param bool $remove_cart_item_from_session If true, the item will not be added to the cart. Default: false. |
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* @param string $key Cart item key. |
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* @param array $values Cart item values e.g. quantity and product_id. |
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*/ |
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if ( apply_filters( 'woocommerce_pre_remove_cart_item_from_session', false, $key, $values ) ) { |
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$update_cart_session = true; |
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do_action( 'woocommerce_remove_cart_item_from_session', $key, $values ); |
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} elseif ( ! $product->is_purchasable() ) { |
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$update_cart_session = true; |
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/* translators: %s: product name */ |
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$message = sprintf( __( '%s has been removed from your cart because it can no longer be purchased. Please contact us if you need assistance.', 'woocommerce' ), $product->get_name() ); |
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/** |
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* Filter message about item removed from the cart. |
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* |
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* @since 3.8.0 |
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* @param string $message Message. |
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* @param WC_Product $product Product data. |
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*/ |
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$message = apply_filters( 'woocommerce_cart_item_removed_message', $message, $product ); |
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wc_add_notice( $message, 'error' ); |
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do_action( 'woocommerce_remove_cart_item_from_session', $key, $values ); |
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} elseif ( ! empty( $values['data_hash'] ) && ! hash_equals( $values['data_hash'], wc_get_cart_item_data_hash( $product ) ) ) { // phpcs:ignore PHPCompatibility.PHP.NewFunctions.hash_equalsFound |
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$update_cart_session = true; |
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/* translators: %1$s: product name. %2$s product permalink */ |
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wc_add_notice( sprintf( __( '%1$s has been removed from your cart because it has since been modified. You can add it back to your cart <a href="%2$s">here</a>.', 'woocommerce' ), $product->get_name(), $product->get_permalink() ), 'notice' ); |
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do_action( 'woocommerce_remove_cart_item_from_session', $key, $values ); |
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} else { |
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// Put session data into array. Run through filter so other plugins can load their own session data. |
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$session_data = array_merge( |
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$values, |
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array( |
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'data' => $product, |
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) |
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); |
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$cart_contents[ $key ] = apply_filters( 'woocommerce_get_cart_item_from_session', $session_data, $values, $key ); |
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// Add to cart right away so the product is visible in woocommerce_get_cart_item_from_session hook. |
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$this->cart->set_cart_contents( $cart_contents ); |
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} |
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} |
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// If it's not empty, it's been already populated by the loop above. |
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if ( ! empty( $cart_contents ) ) { |
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$this->cart->set_cart_contents( apply_filters( 'woocommerce_cart_contents_changed', $cart_contents ) ); |
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} |
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do_action( 'woocommerce_cart_loaded_from_session', $this->cart ); |
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if ( $update_cart_session || is_null( WC()->session->get( 'cart_totals', null ) ) ) { |
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WC()->session->set( 'cart', $this->get_cart_for_session() ); |
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$this->cart->calculate_totals(); |
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} |
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// If this is a re-order, redirect to the cart page to get rid of the `order_again` query string. |
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if ( $order_again ) { |
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wp_safe_redirect( wc_get_cart_url() ); |
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exit; |
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} |
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} |
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/** |
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* Destroy cart session data. |
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* |
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* @since 3.2.0 |
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*/ |
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public function destroy_cart_session() { |
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WC()->session->set( 'cart', null ); |
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WC()->session->set( 'cart_totals', null ); |
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WC()->session->set( 'applied_coupons', null ); |
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WC()->session->set( 'coupon_discount_totals', null ); |
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WC()->session->set( 'coupon_discount_tax_totals', null ); |
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WC()->session->set( 'removed_cart_contents', null ); |
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WC()->session->set( 'order_awaiting_payment', null ); |
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} |
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/** |
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* Will set cart cookies if needed and when possible. |
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* |
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* @since 3.2.0 |
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*/ |
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public function maybe_set_cart_cookies() { |
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if ( ! headers_sent() && did_action( 'wp_loaded' ) ) { |
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if ( ! $this->cart->is_empty() ) { |
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$this->set_cart_cookies( true ); |
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} elseif ( isset( $_COOKIE['woocommerce_items_in_cart'] ) ) { // WPCS: input var ok. |
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$this->set_cart_cookies( false ); |
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} |
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} |
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} |
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/** |
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* Sets the php session data for the cart and coupons. |
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*/ |
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public function set_session() { |
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WC()->session->set( 'cart', $this->get_cart_for_session() ); |
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WC()->session->set( 'cart_totals', $this->cart->get_totals() ); |
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WC()->session->set( 'applied_coupons', $this->cart->get_applied_coupons() ); |
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WC()->session->set( 'coupon_discount_totals', $this->cart->get_coupon_discount_totals() ); |
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WC()->session->set( 'coupon_discount_tax_totals', $this->cart->get_coupon_discount_tax_totals() ); |
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WC()->session->set( 'removed_cart_contents', $this->cart->get_removed_cart_contents() ); |
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do_action( 'woocommerce_cart_updated' ); |
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} |
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/** |
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* Returns the contents of the cart in an array without the 'data' element. |
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* |
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* @return array contents of the cart |
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*/ |
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public function get_cart_for_session() { |
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$cart_session = array(); |
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foreach ( $this->cart->get_cart() as $key => $values ) { |
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$cart_session[ $key ] = $values; |
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unset( $cart_session[ $key ]['data'] ); // Unset product object. |
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} |
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return $cart_session; |
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} |
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/** |
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* Save the persistent cart when the cart is updated. |
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*/ |
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public function persistent_cart_update() { |
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if ( get_current_user_id() && apply_filters( 'woocommerce_persistent_cart_enabled', true ) ) { |
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update_user_meta( |
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get_current_user_id(), |
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'_woocommerce_persistent_cart_' . get_current_blog_id(), |
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array( |
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'cart' => $this->get_cart_for_session(), |
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) |
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); |
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} |
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} |
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/** |
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* Delete the persistent cart permanently. |
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*/ |
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public function persistent_cart_destroy() { |
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if ( get_current_user_id() && apply_filters( 'woocommerce_persistent_cart_enabled', true ) ) { |
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delete_user_meta( get_current_user_id(), '_woocommerce_persistent_cart_' . get_current_blog_id() ); |
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} |
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} |
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/** |
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* Set cart hash cookie and items in cart if not already set. |
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* |
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* @param bool $set Should cookies be set (true) or unset. |
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*/ |
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private function set_cart_cookies( $set = true ) { |
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if ( $set ) { |
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$setcookies = array( |
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'woocommerce_items_in_cart' => '1', |
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'woocommerce_cart_hash' => WC()->cart->get_cart_hash(), |
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); |
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foreach ( $setcookies as $name => $value ) { |
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if ( ! isset( $_COOKIE[ $name ] ) || $_COOKIE[ $name ] !== $value ) { |
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wc_setcookie( $name, $value ); |
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} |
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} |
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} else { |
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$unsetcookies = array( |
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'woocommerce_items_in_cart', |
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'woocommerce_cart_hash', |
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); |
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foreach ( $unsetcookies as $name ) { |
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if ( isset( $_COOKIE[ $name ] ) ) { |
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wc_setcookie( $name, 0, time() - HOUR_IN_SECONDS ); |
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unset( $_COOKIE[ $name ] ); |
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} |
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} |
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} |
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do_action( 'woocommerce_set_cart_cookies', $set ); |
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} |
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/** |
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* Get the persistent cart from the database. |
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* |
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* @since 3.5.0 |
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* @return array |
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*/ |
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private function get_saved_cart() { |
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$saved_cart = array(); |
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if ( apply_filters( 'woocommerce_persistent_cart_enabled', true ) ) { |
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$saved_cart_meta = get_user_meta( get_current_user_id(), '_woocommerce_persistent_cart_' . get_current_blog_id(), true ); |
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if ( isset( $saved_cart_meta['cart'] ) ) { |
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$saved_cart = array_filter( (array) $saved_cart_meta['cart'] ); |
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} |
318
|
|
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} |
319
|
|
|
|
320
|
|
|
return $saved_cart; |
321
|
|
|
} |
322
|
|
|
|
323
|
|
|
/** |
324
|
|
|
* Get a cart from an order, if user has permission. |
325
|
|
|
* |
326
|
|
|
* @since 3.5.0 |
327
|
|
|
* |
328
|
|
|
* @param int $order_id Order ID to try to load. |
329
|
|
|
* @param array $cart Current cart array. |
330
|
|
|
* |
331
|
|
|
* @return array |
332
|
|
|
*/ |
333
|
|
|
private function populate_cart_from_order( $order_id, $cart ) { |
334
|
|
|
$order = wc_get_order( $order_id ); |
335
|
|
|
|
336
|
|
|
if ( ! $order->get_id() || ! $order->has_status( apply_filters( 'woocommerce_valid_order_statuses_for_order_again', array( 'completed' ) ) ) || ! current_user_can( 'order_again', $order->get_id() ) ) { |
337
|
|
|
return; |
338
|
|
|
} |
339
|
|
|
|
340
|
|
|
if ( apply_filters( 'woocommerce_empty_cart_when_order_again', true ) ) { |
341
|
|
|
$cart = array(); |
342
|
|
|
} |
343
|
|
|
|
344
|
|
|
$inital_cart_size = count( $cart ); |
345
|
|
|
$order_items = $order->get_items(); |
346
|
|
|
|
347
|
|
|
foreach ( $order_items as $item ) { |
348
|
|
|
$product_id = (int) apply_filters( 'woocommerce_add_to_cart_product_id', $item->get_product_id() ); |
349
|
|
|
$quantity = $item->get_quantity(); |
350
|
|
|
$variation_id = (int) $item->get_variation_id(); |
351
|
|
|
$variations = array(); |
352
|
|
|
$cart_item_data = apply_filters( 'woocommerce_order_again_cart_item_data', array(), $item, $order ); |
353
|
|
|
$product = $item->get_product(); |
354
|
|
|
|
355
|
|
|
if ( ! $product ) { |
356
|
|
|
continue; |
357
|
|
|
} |
358
|
|
|
|
359
|
|
|
// Prevent reordering variable products if no selected variation. |
360
|
|
|
if ( ! $variation_id && $product->is_type( 'variable' ) ) { |
361
|
|
|
continue; |
362
|
|
|
} |
363
|
|
|
|
364
|
|
|
// Prevent reordering items specifically out of stock. |
365
|
|
|
if ( ! $product->is_in_stock() ) { |
366
|
|
|
continue; |
367
|
|
|
} |
368
|
|
|
|
369
|
|
|
foreach ( $item->get_meta_data() as $meta ) { |
370
|
|
|
if ( taxonomy_is_product_attribute( $meta->key ) ) { |
371
|
|
|
$term = get_term_by( 'slug', $meta->value, $meta->key ); |
372
|
|
|
$variations[ $meta->key ] = $term ? $term->name : $meta->value; |
373
|
|
|
} elseif ( meta_is_product_attribute( $meta->key, $meta->value, $product_id ) ) { |
374
|
|
|
$variations[ $meta->key ] = $meta->value; |
375
|
|
|
} |
376
|
|
|
} |
377
|
|
|
|
378
|
|
|
if ( ! apply_filters( 'woocommerce_add_to_cart_validation', true, $product_id, $quantity, $variation_id, $variations, $cart_item_data ) ) { |
379
|
|
|
continue; |
380
|
|
|
} |
381
|
|
|
|
382
|
|
|
// Add to cart directly. |
383
|
|
|
$cart_id = WC()->cart->generate_cart_id( $product_id, $variation_id, $variations, $cart_item_data ); |
384
|
|
|
$product_data = wc_get_product( $variation_id ? $variation_id : $product_id ); |
385
|
|
|
$cart[ $cart_id ] = apply_filters( |
386
|
|
|
'woocommerce_add_order_again_cart_item', |
387
|
|
|
array_merge( |
388
|
|
|
$cart_item_data, |
389
|
|
|
array( |
390
|
|
|
'key' => $cart_id, |
391
|
|
|
'product_id' => $product_id, |
392
|
|
|
'variation_id' => $variation_id, |
393
|
|
|
'variation' => $variations, |
394
|
|
|
'quantity' => $quantity, |
395
|
|
|
'data' => $product_data, |
396
|
|
|
'data_hash' => wc_get_cart_item_data_hash( $product_data ), |
|
|
|
|
397
|
|
|
) |
398
|
|
|
), |
399
|
|
|
$cart_id |
400
|
|
|
); |
401
|
|
|
} |
402
|
|
|
|
403
|
|
|
do_action_ref_array( 'woocommerce_ordered_again', array( $order->get_id(), $order_items, &$cart ) ); |
404
|
|
|
|
405
|
|
|
$num_items_in_cart = count( $cart ); |
406
|
|
|
$num_items_in_original_order = count( $order_items ); |
407
|
|
|
$num_items_added = $num_items_in_cart - $inital_cart_size; |
408
|
|
|
|
409
|
|
|
if ( $num_items_in_original_order > $num_items_added ) { |
410
|
|
|
wc_add_notice( |
411
|
|
|
sprintf( |
412
|
|
|
/* translators: %d item count */ |
413
|
|
|
_n( |
414
|
|
|
'%d item from your previous order is currently unavailable and could not be added to your cart.', |
415
|
|
|
'%d items from your previous order are currently unavailable and could not be added to your cart.', |
416
|
|
|
$num_items_in_original_order - $num_items_added, |
417
|
|
|
'woocommerce' |
418
|
|
|
), |
419
|
|
|
$num_items_in_original_order - $num_items_added |
420
|
|
|
), |
421
|
|
|
'error' |
422
|
|
|
); |
423
|
|
|
} |
424
|
|
|
|
425
|
|
|
if ( 0 < $num_items_added ) { |
426
|
|
|
wc_add_notice( __( 'The cart has been filled with the items from your previous order.', 'woocommerce' ) ); |
427
|
|
|
} |
428
|
|
|
|
429
|
|
|
return $cart; |
430
|
|
|
} |
431
|
|
|
} |
432
|
|
|
|
It seems like the type of the argument is not accepted by the function/method which you are calling.
In some cases, in particular if PHP’s automatic type-juggling kicks in this might be fine. In other cases, however this might be a bug.
We suggest to add an explicit type cast like in the following example: