根据产品类别拒绝在WooCommerce中结账的特定购物车项目
基于Allow checkout only when a product of a mandatory category is in cart,我尝试制作自己的代码样本,以呈现通知并防止结账,如果购物车
仅包含特定类别的产品。它在预防和错误通知方面起作用,但是在添加其他产品时,它仍然拒绝结账。
/**
* Renders a notice and prevents checkout if the cart
* only contains products in a specific category
*/
//add_action( 'woocommerce_check_cart_items', 'brown_wc_prevent_checkout_for_category' );
function brown_wc_prevent_checkout_for_category() {
// set the slug of the category for which we disallow checkout
$categories = array('drinks','extra-accompaniments');
foreach ($categories as $category => $value) {
// 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;
}
// check if this category is the only thing in the cart
if ( brown_wc_is_category_alone_in_cart( $category ) ) {
// render a notice to explain why checkout is blocked
wc_add_notice( sprintf( 'Please choose atleast one bento.', $category ), 'error' );
}
}
}
/**
* 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 brown_wc_is_category_alone_in_cart( $category ) {
//When the cart is empty, remove warning message that I have set for when the snippet takes effect
if (!WC()->cart->is_empty()) {
// All the code
// check each cart item for our category
foreach ( WC()->cart->get_cart() as $cart_item_key => $cart_item ) {
// if a product is not in our category, bail out since we know the category is not alone
if ( ! has_term( $category, 'product_cat', $cart_item['data']->id ) ) {
return false;
}
}
// if we're here, all items in the cart are in our category
return true;
} else {
return false; // Assume you'd want false here, since the cart is empty
}
}
解决方案
您的代码中有一些错误会导致它无法成功工作。您的代码和要求与我的previous answer完全不同。
您必须为通知设置所需的按钮URL和文本,如"便当"产品类别链接和按钮名称。
代码如下:
// Conditional function that check if the non mandatory product categories are in all cart items
function has_not_mandatory_category(){
// DEFINE HERE the your non mandatory product categories (Ids, slugs or names)
$categories = array('drinks','extra-accompaniments');
// Iterrating each item in cart and detecting…
foreach ( WC()->cart->get_cart() as $cart_item ) {
$product_id = $cart_item['product_id']; // <== This is the right way (working for product variations too)
if ( ! has_term( $categories, 'product_cat', $product_id ) )
return false;
}
return true;
}
// Display a message and prevent checkout if the non mandatory product categories are not in all cart items
add_action( 'woocommerce_check_cart_items', 'prevent_checkout_display_notice' ); // for cart and checkout
function prevent_checkout_display_notice() {
// DEFINE HERE the return button URL and title
$button_url = '#';
$button_title = 'Go there';
// Display message if the non mandatory product categories are not in all cart items
if ( has_not_mandatory_category() )
wc_add_notice(
sprintf( __( 'Please choose at least one bento. <a class="button" href="%s">%s</a>', 'your_theme_domain'),
$button_url,
$button_title
), 'error'
);
}
代码放在活动子主题(或活动主题)的函数.php文件中。
已测试和工作的…
您应该执行相反的…操作,而不是针对非强制性产品类别
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