Forked from bekarice/wc-prevent-checkout-for-cart-with-specific-category.php
Created
November 28, 2020 15:38
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Prevents checkout if the WooCommerce cart only contains items from a specific category
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| <?php // only copy this line if needed | |
| /** | |
| * Renders a notice and prevents checkout if the cart | |
| * only contains products in a specific category | |
| */ | |
| function sv_wc_prevent_checkout_for_category() { | |
| // set the slug of the category for which we disallow checkout | |
| $category = 'clothing'; | |
| // get the product category | |
| $product_cat = get_term_by( 'slug', $category, 'product_cat' ); | |
| // sanity check to prevent fatals if the term doesn't exist | |
| if ( is_wp_error( $product_cat ) ) { | |
| return; | |
| } | |
| $category_name = '<a href="' . get_term_link( $category, 'product_cat' ) . '">' . $product_cat->name . '</a>'; | |
| // check if this category is the only thing in the cart | |
| if ( sv_wc_is_category_alone_in_cart( $category ) ) { | |
| // render a notice to explain why checkout is blocked | |
| wc_add_notice( sprintf( 'Hi there! Looks like your cart only contains products from the %1$s category – you must purchase a product from another category to check out.', $category_name ), 'error' ); | |
| } | |
| } | |
| add_action( 'woocommerce_check_cart_items', 'sv_wc_prevent_checkout_for_category' ); | |
| /** | |
| * Checks if a cart contains exclusively products in a given category | |
| * | |
| * @param string $category the slug of the product category | |
| * @return bool - true if the cart only contains the given category | |
| */ | |
| function sv_wc_is_category_alone_in_cart( $category ) { | |
| // holds checks for all products in cart to see if they're in our category | |
| $category_checks = array(); | |
| // check each cart item for our category | |
| foreach ( WC()->cart->get_cart() as $cart_item_key => $cart_item ) { | |
| $product = $cart_item['data']; | |
| $product_in_cat = has_term( $category, 'product_cat', $product->id ); | |
| array_push( $category_checks, $product_in_cat ); | |
| } | |
| // return true if there are no other categories in the cart | |
| return ! in_array( false, $category_checks, true ); | |
| } |
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