mirror of
https://github.com/pronamic/woocommerce-subscriptions.git
synced 2025-10-07 10:04:03 +00:00
203 lines
9.6 KiB
PHP
203 lines
9.6 KiB
PHP
<?php
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/**
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* Subscriptions Cart Validator Class
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*
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* Validates the Cart contents
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*
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* @package WooCommerce Subscriptions
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* @subpackage WC_Subscriptions_Cart_Validator
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* @category Class
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* @since 1.0.0 - Migrated from WooCommerce Subscriptions v2.6.0
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*/
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class WC_Subscriptions_Cart_Validator {
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/**
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* Bootstraps the class and hooks required actions & filters.
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*/
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public static function init() {
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add_filter( 'woocommerce_add_to_cart_validation', array( __CLASS__, 'maybe_empty_cart' ), 10, 6 );
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add_filter( 'woocommerce_cart_loaded_from_session', array( __CLASS__, 'validate_cart_contents_for_mixed_checkout' ), 10 );
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add_filter( 'woocommerce_add_to_cart_validation', array( __CLASS__, 'can_add_product_to_cart' ), 10, 6 );
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}
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/**
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* When a subscription is added to the cart, remove other products/subscriptions to
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* work with PayPal Standard, which only accept one subscription per checkout.
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*
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* If multiple purchase flag is set, allow them to be added at the same time.
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*
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* @param bool $valid Whether the product can be added to the cart.
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* @param int $product_id The product ID.
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* @param int $quantity The quantity of the product being added.
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* @param int $variation_id The variation ID.
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* @param array $variations The variations of the product being added.
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* @param array $item_data The additional item data set by all plugins.
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*
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* @return bool Whether the product can be added to the cart.
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* @since 1.0.0 - Migrated from WooCommerce Subscriptions v2.6.0
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*/
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public static function maybe_empty_cart( $valid, $product_id, $quantity, $variation_id = 0, $variations = array(), $item_data = array() ) {
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$is_subscription = WC_Subscriptions_Product::is_subscription( $product_id );
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$cart_contains_subscription = WC_Subscriptions_Cart::cart_contains_subscription();
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$payment_gateways_handler = WC_Subscriptions_Core_Plugin::instance()->get_gateways_handler_class();
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$multiple_subscriptions_possible = $payment_gateways_handler::one_gateway_supports( 'multiple_subscriptions' );
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$manual_renewals_enabled = wcs_is_manual_renewal_enabled();
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$canonical_product_id = ! empty( $variation_id ) ? $variation_id : $product_id;
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/**
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* These flags are used by Product Bundles and Composite Products to indicate that the product is being added as part of an order again.
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* We don't need to empty cart in this case but neither we need to add the product again.
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*/
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if ( isset( $item_data['is_order_again_composited'] ) || isset( $item_data['is_order_again_bundled'] ) ) {
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return false;
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}
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if ( $is_subscription && 'yes' !== get_option( WC_Subscriptions_Admin::$option_prefix . '_multiple_purchase', 'no' ) ) {
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// Generate a cart item key from variation and cart item data - which may be added by other plugins
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$cart_item_data = (array) apply_filters( 'woocommerce_add_cart_item_data', array(), $product_id, $variation_id, $quantity );
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$cart_item_id = WC()->cart->generate_cart_id( $product_id, $variation_id, $variations, $cart_item_data );
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$product = wc_get_product( $product_id );
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// If the product is sold individually or if the cart doesn't already contain this product, empty the cart.
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if ( ! WC()->cart->is_empty() && ( ( $product && $product->is_sold_individually() ) || ! WC()->cart->find_product_in_cart( $cart_item_id ) ) ) {
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$message = $cart_contains_subscription ? __( 'A subscription has been removed from your cart. Only one subscription product can be purchased at a time.', 'woocommerce-subscriptions' ) : __( 'Products have been removed from your cart. Products and subscriptions can not be purchased at the same time.', 'woocommerce-subscriptions' );
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WC()->cart->empty_cart();
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wc_add_notice( $message, 'notice' );
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}
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} elseif ( $is_subscription && wcs_cart_contains_renewal() && ! $multiple_subscriptions_possible && ! $manual_renewals_enabled ) {
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WC_Subscriptions_Cart::remove_subscriptions_from_cart();
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wc_add_notice( __( 'A subscription renewal has been removed from your cart. Multiple subscriptions can not be purchased at the same time.', 'woocommerce-subscriptions' ), 'notice' );
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} elseif ( $is_subscription && $cart_contains_subscription && ! $multiple_subscriptions_possible && ! $manual_renewals_enabled && ! WC_Subscriptions_Cart::cart_contains_product( $canonical_product_id ) ) {
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WC_Subscriptions_Cart::remove_subscriptions_from_cart();
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wc_add_notice( __( 'A subscription has been removed from your cart. Due to payment gateway restrictions, different subscription products can not be purchased at the same time.', 'woocommerce-subscriptions' ), 'notice' );
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} elseif ( $cart_contains_subscription && 'yes' !== get_option( WC_Subscriptions_Admin::$option_prefix . '_multiple_purchase', 'no' ) ) {
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WC_Subscriptions_Cart::remove_subscriptions_from_cart();
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wc_add_notice( __( 'A subscription has been removed from your cart. Products and subscriptions can not be purchased at the same time.', 'woocommerce-subscriptions' ), 'notice' );
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// Redirect to cart page to remove subscription & notify shopper
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add_filter( 'woocommerce_add_to_cart_fragments', array( __CLASS__, 'add_to_cart_ajax_redirect' ) );
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}
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return $valid;
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}
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/**
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* This checks cart items for mixed checkout.
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*
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* @param $cart WC_Cart the one we got from session
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* @return WC_Cart $cart
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*
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* @since 1.0.0 - Migrated from WooCommerce Subscriptions v2.6.0
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*/
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public static function validate_cart_contents_for_mixed_checkout( $cart ) {
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// When mixed checkout is enabled
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if ( $cart->cart_contents && 'yes' === get_option( WC_Subscriptions_Admin::$option_prefix . '_multiple_purchase', 'no' ) ) {
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return $cart;
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}
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if ( ! WC_Subscriptions_Cart::cart_contains_subscription() && ! wcs_cart_contains_renewal() ) {
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return $cart;
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}
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foreach ( $cart->cart_contents as $key => $item ) {
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// If two different subscription products are in the cart
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// or a non-subscription product is found in the cart containing subscriptions
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// ( maybe because of carts merge while logging in )
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if ( ! WC_Subscriptions_Product::is_subscription( $item['data'] ) ||
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WC_Subscriptions_Cart::cart_contains_other_subscription_products( wcs_get_canonical_product_id( $item['data'] ) ) ) {
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// remove the subscriptions from the cart
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WC_Subscriptions_Cart::remove_subscriptions_from_cart();
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// and add an appropriate notice
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wc_add_notice( __( 'Your cart has been emptied of subscription products. Only one subscription product can be purchased at a time.', 'woocommerce-subscriptions' ), 'notice' );
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// Redirect to cart page to remove subscription & notify shopper
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add_filter( 'woocommerce_add_to_cart_fragments', array( __CLASS__, 'add_to_cart_ajax_redirect' ) );
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break;
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}
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}
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return $cart;
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}
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/**
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* Don't allow products to be added to the cart if it contains a subscription renewal already.
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*
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* @since 7.7.0
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*
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* @param bool $can_add Whether the product can be added to the cart.
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* @param int $product_id The product ID.
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* @param int $quantity The quantity of the product being added.
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* @param int $variation_id The variation ID.
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* @param array $variations The variations of the product being added.
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* @param array $item_data The item data.
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*
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* @return bool Whether the product can be added to the cart.
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*/
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public static function can_add_product_to_cart( $can_add, $product_id, $quantity, $variation_id = 0, $variations = array(), $item_data = array() ) {
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if ( $can_add && ! isset( $item_data['subscription_renewal'] ) && wcs_cart_contains_renewal() ) {
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wc_add_notice( __( 'That product can not be added to your cart as it already contains a subscription renewal.', 'woocommerce-subscriptions' ), 'error' );
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$can_add = false;
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}
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return $can_add;
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}
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/**
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* Adds the required cart AJAX args and filter callbacks to cause an error and redirect the customer.
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*
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* Attached by @see WC_Subscriptions_Cart_Validator::validate_cart_contents_for_mixed_checkout() and
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* @see WC_Subscriptions_Cart_Validator::maybe_empty_cart() when the store has multiple subscription
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* purchases disabled, the cart already contains products and the customer adds a new item or logs in
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* causing a cart merge.
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*
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* @since 1.0.0 - Migrated from WooCommerce Subscriptions v4.0.0
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*
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* @param array $fragments The add to cart AJAX args.
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* @return array $fragments
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*/
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public static function add_to_cart_ajax_redirect( $fragments ) {
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$fragments['error'] = true;
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$fragments['product_url'] = wc_get_cart_url();
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# Force error on add_to_cart() to redirect
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add_filter( 'woocommerce_add_to_cart_validation', '__return_false', 10 );
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add_filter( 'woocommerce_cart_redirect_after_error', 'wc_get_cart_url', 10 );
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do_action( 'wc_ajax_add_to_cart' );
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return $fragments;
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}
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/**
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* Don't allow new subscription products to be added to the cart if it contains a subscription renewal already.
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*
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* @since 1.0.0 - Migrated from WooCommerce Subscriptions v2.6.0
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* @deprecated 3.0.0
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*/
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public static function can_add_subscription_product_to_cart( $can_add, $product_id, $quantity, $variation_id = '', $variations = array(), $item_data = array() ) {
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wcs_deprecated_function( __METHOD__, '6.9.0', 'WC_Subscriptions_Cart_Validator::can_add_product_to_cart' );
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if ( $can_add && ! isset( $item_data['subscription_renewal'] ) && wcs_cart_contains_renewal() && WC_Subscriptions_Product::is_subscription( $product_id ) ) {
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wc_add_notice( __( 'That subscription product can not be added to your cart as it already contains a subscription renewal.', 'woocommerce-subscriptions' ), 'error' );
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$can_add = false;
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}
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return $can_add;
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}
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}
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