BLUE CLOUD

WooCommerce – Show discount coupons on the Cart page based on products in the cart

We often add coupons to our online store based on special occasions. These coupons are usually only valid for specific categories of products. Therefore, we want to show the available coupons to customers based on the products in their carts. This way, customers can take advantage of any discounts available to them.

We need to add the Advanced Custom Fields free plugin for this to function. ACF plugin will be used to add a related field in taxonomy term pages.

After installing the ACF plugin, add a new Field Group with a Relationship type field, as shown in the image below

select Relationship as field type and Coupon as Filter By Post Type — Select *Relationship* as the field type, *Coupon* as *Filter By Post Type,* and *Search* and *Taxonomy* as Filters.

Set the location to Taxonomy and value as Category (product_cat) as shown in the image below.

acf field group for related coupons in the category page of woocommerce — ACF field group for related coupons in the category page of woocommerce

Now go to the product category listing page under Products and edit any category term.

Go to Product category listing page and click on edit button for any category term — Product category listing page

Add a coupon to the category and update it.

This is how it will look on the category term edit page. — This is how it will look on the category term edit page

PHP Snippet: To show the discount coupon applicable for certain products on the cart page –

function bcloud_display_coupons_cart(){
	global $wp;	
	$current_slug = add_query_arg( array(), $wp->request );
	if ($current_slug == 'cart-testing' || $current_slug == 'cart'){
		$coupons = array();
		$coupons_codes = array(); // to be used to avoid adding same coupon code multiple times
		foreach ( WC()->cart->get_cart() as $cart_item_key => $cart_item ) {
			$product = $cart_item['data'];
			$category_types = wp_get_post_terms( $cart_item['product_id'], 'product_cat');
			foreach ( $category_types as $category_type ) {
				$related_coupons = get_term_meta($category_type->term_id, 'related_coupons', true);
				if ($related_coupons){
					foreach($related_coupons as $related_coupon){
						$coupon_obj = get_post($related_coupon);
						if ($coupon_obj && ! in_array($coupon_obj->post_title, $coupons_codes)){
							array_push($coupons_codes, $coupon_obj->post_title);
							array_push($coupons, $coupon_obj);
						}
					}
				}
			}
		}
		if (empty($coupons)){
			return;
		}
		echo '<br><h4>Available Coupons</h4>';
		foreach($coupons as $coupon){
			echo "<span>Code:&nbsp; <strong>{$coupon->post_title}</strong></span><span>  &nbsp;Description: {$coupon->post_excerpt}</span><br><br>";
		}
	}
}

add_action('woocommerce_after_cart_table', 'bcloud_display_coupons_cart');
//add_action('woocommerce_cart_coupon', 'bcloud_display_coupons_cart');

After adding the above code, available coupons will show on the cart page based on products in the cart.

This is how it will look on the front end on the cart page

We have hooked our code to woocommerce_after_cart_table action. You can hook it with the woocommerce_cart_coupon action to show available coupons above the Update Cart button. Or you can choose the action hook based on this visual guide of cart page hooks.