我有一種產(chǎn)品很便宜。當(dāng)且僅當(dāng)購物車小計(jì)為 200 件或更多時(shí)，我想贈(zèng)送該產(chǎn)品。如果購物車小計(jì)為 200 件或更多，請(qǐng)將產(chǎn)品添加到購物車并將價(jià)格設(shè)置為 0。如果購物車小計(jì)少于 200，請(qǐng)從購物車中刪除該產(chǎn)品。在添加和刪除時(shí)，我使用通知來通知客戶。除了產(chǎn)品價(jià)格發(fā)生變化外，一切都按計(jì)劃進(jìn)行。如果有人可以檢查我正在使用的代碼并修復(fù)這一問題，我將非常感激。add_action( 'woocommerce_before_calculate_totals', 'free_product_if_cart_minimum', 10, 1 );function free_product_if_cart_minimum( $cart ) { // go away if admin if (is_admin() && !defined( 'DOING_AJAX' )) return; // say no to hook repetition if (did_action( 'woocommerce_before_calculate_totals' ) >= 2 ) return; $minimum_amount = 200; $free_product_id = 4576; $cart_items_total = 0; // cart loop foreach ( $cart->get_cart() as $cart_item_key => $cart_item ){ // is the free product there? if ( $cart_item['data']->get_id() == $free_product_id ) { $free_item_key = $cart_item_key; // set the price to zero // I've tried them both without success // $free_item_key->set_price( 0 ); // $free_product_id->set_price( $price * 0.00 ); } // cart subtotal incl. tax and discounts $cart_items_total += $cart_item['line_total'] + $cart_item['line_tax']; } // add the free product if not already there if ( $cart_items_total >= $minimum_amount && !isset( $free_item_key ) ) { $cart->add_to_cart( $free_product_id ); wc_add_notice( 'Thank you! Here\'s your free product.', 'notice' ); } // if below the minimum, remove the free product elseif ( $cart_items_total < $minimum_amount && isset( $free_item_key ) ) { $cart->remove_cart_item( $free_item_key ); // display notice after removal wc_add_notice( 'Your cart subtotal is less than 200 and therefore, the free product was removed.', 'notice' ); }}
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以下內(nèi)容將完成這項(xiàng)工作，將購物車中的免費(fèi)產(chǎn)品價(jià)格設(shè)置為零：
add_action( 'woocommerce_before_calculate_totals', 'conditionally_add_free_product' );
function conditionally_add_free_product( $cart ) {
if ( is_admin() && ! defined( 'DOING_AJAX' ) )
return;
// Settings
$minimum_amount = 200;
$free_product_id = 4576;
// Initializing
$cart_subtotal = 0;
$cart_items = $cart->get_cart();
// Loop through cart items (first loop)
foreach ( $cart_items as $cart_item_key => $cart_item ){
// When free productis is cart
if ( $cart_item['data']->get_id() == $free_product_id ) {
$free_item_key = $cart_item_key; // Free product found (get its cart item key)
$cart_item['data']->set_price(0);
}
// Get cart subtotal incl. tax and discounts (excluding free product)
else {
$cart_subtotal += $cart_item['line_total'] + $cart_item['line_tax'];
}
}
// When cart total is up to the minimum amount, add the free product if not already there
if ( $cart_subtotal >= $minimum_amount && ! isset($free_item_key) ) {
$cart_item_key = $cart->add_to_cart( $free_product_id );
// display notice after removal
wc_add_notice( __("Thank you! Here's your free product."), 'notice' );
}
// if below the minimum, remove the free product
elseif ( $cart_subtotal < $minimum_amount && isset( $free_item_key ) ) {
$cart->remove_cart_item( $free_item_key );
// display notice after removal
wc_add_notice( sprintf(
__("Your cart subtotal is less than %s and therefore, the free product was removed."), wc_price($cart_subtotal)
), 'notice' );
}
}
代碼位于活動(dòng)子主題（或活動(dòng)主題）的functions.php 文件中。經(jīng)過測(cè)試并有效。
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