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woocommerce only physical or virtual product in cart - with add on plugin "Product Bundles" (bundle is virtual but has physical products)
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| <?php | |
| /** | |
| * Validate cart items and prevent adding incompatible product types. | |
| * | |
| * @param bool $passed | |
| * @param int $product_id | |
| * @param int $quantity | |
| * @return bool | |
| */ | |
| function filter_wc_add_to_cart_validation( $passed, $product_id, $quantity ) { | |
| $cart = WC()->cart->get_cart(); | |
| // If cart is empty, allow adding any product | |
| if ( empty( $cart ) ) { | |
| return $passed; | |
| } | |
| $product = wc_get_product( $product_id ); | |
| $cart_content = analyze_cart_content( $cart ); | |
| $product_type = get_product_type( $product ); | |
| // Check if the new product can be added to the cart | |
| if ( !can_add_to_cart( $product_type, $cart_content ) ) { | |
| wc_add_notice( __( "You can't combine these product types in the cart.", "woocommerce" ), 'error' ); | |
| return false; | |
| } | |
| return $passed; | |
| } | |
| add_filter( 'woocommerce_add_to_cart_validation', 'filter_wc_add_to_cart_validation', 10, 3 ); | |
| /** | |
| * Check cart items before checkout. | |
| */ | |
| function filter_wc_check_cart_items() { | |
| $cart = WC()->cart->get_cart(); | |
| $cart_content = analyze_cart_content( $cart ); | |
| if ( $cart_content['has_virtual'] && ( $cart_content['has_physical'] || $cart_content['has_bundle'] ) ) { | |
| wc_add_notice( __( "You can't combine these product types in the cart.", "woocommerce" ), 'error' ); | |
| } | |
| } | |
| add_action( 'woocommerce_check_cart_items', 'filter_wc_check_cart_items' ); | |
| /** | |
| * Analyze the content of the cart. | |
| * | |
| * @param array $cart | |
| * @return array | |
| */ | |
| function analyze_cart_content( $cart ) { | |
| $content = [ | |
| 'has_physical' => false, | |
| 'has_virtual' => false, | |
| 'has_bundle' => false | |
| ]; | |
| foreach ( $cart as $cart_item ) { | |
| $product_type = get_product_type( $cart_item['data'] ); | |
| $content["has_$product_type"] = true; | |
| } | |
| return $content; | |
| } | |
| /** | |
| * Get the product type for our categorization. | |
| * | |
| * @param WC_Product $product | |
| * @return string | |
| */ | |
| function get_product_type( $product ) { | |
| if ( $product->get_type() === 'bundle' ) { | |
| return 'bundle'; | |
| } elseif ( $product->is_virtual() ) { | |
| return 'virtual'; | |
| } else { | |
| return 'physical'; | |
| } | |
| } | |
| /** | |
| * Check if a product can be added to the cart. | |
| * | |
| * @param string $product_type | |
| * @param array $cart_content | |
| * @return bool | |
| */ | |
| function can_add_to_cart( $product_type, $cart_content ) { | |
| // Allow only virtual products (excluding bundles) | |
| $only_virtual = $cart_content['has_virtual'] && !$cart_content['has_physical'] && !$cart_content['has_bundle']; | |
| // Allow bundles and physical products together | |
| $physical_and_bundle = ( $cart_content['has_physical'] || $cart_content['has_bundle'] ) && !$cart_content['has_virtual']; | |
| if ( ( $product_type === 'virtual' && !$only_virtual ) || | |
| ( $product_type === 'bundle' && $cart_content['has_virtual'] ) || | |
| ( $product_type === 'physical' && !$physical_and_bundle ) ) { | |
| return false; | |
| } | |
| return true; | |
| } |
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