Ecommerce Shopify WordPress Discussion

Limit purchases to items having the same product attribute in WooCommerce

I am using the code snippet below to limit the purchase of one unique WooCommerce product per order, because of logistic reasons (multiple warehouses). I use an attribute to specify the warehouse and it would be convenient to allow customers to order multiple products if the warehouse/attribute is the same. Could someone help me with changing the code snippet? add_filter( 'woocommerce_add_to_cart_validation', 'wc_limit_one_per_order', 10, 2 ); function wc_limit_one_per_order( $passed_validation, $product_id ) { if ( WC()->cart->get_cart_contents_count() >= 1 ) { wc_add_notice( __( 'This product cannot be purchased with other products. Please, empty your cart first and then add it again.', 'woocommerce' ), 'error' ); return false; } return $passed_validation; } I thought adding something like this, but I don't know how to proceed.. $attribute = $product->get_attribute('pa_warehouse'); foreach (WC()->cart->get_cart() as $cart_item_key => $values) { $product = $values['data'];
Try the following revised code: add_filter( 'woocommerce_add_to_cart_validation', 'filter_add_to_cart_validation', 10, 4 ); function filter_add_to_cart_validation( $passed, $product_id, $quantity, $variation_id = null ) { $product = wc_get_product( $product_id ); $warehouse = $product->get_attribute('pa_warehouse'); $cart_items = WC()->cart->get_cart(); if ( WC()->cart->is_empty() ) { return $passed; } // Loop through cart items foreach ( WC()->cart->get_cart() as $values ) { // Check if the warehouse is different if ( $warehouse !== $values['data']->get_attribute('pa_warehouse') ) { wc_add_notice( __( 'This product cannot be purchased because...', 'woocommerce' ), 'error' ); return false; } } return $passed; } Code goes in functions.php file of your child theme (or in a plugin). It should work.

January 17, 2024

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