如果其他購物車商品屬於特定類別，請將產品添加到woocommerce購物車

Question

我需要能夠有條件地將產品的一個添加到WooCommerce訂單/購物車中，如果購物車中的任何商品均來自一個特定的類別。 這是我嘗試過的代碼，但它鎖定了結帳和購物車頁面，返回沒有woocommerce信息，或任何後（沒有頁腳，沒有額外的頁面元素等....只是一切，直到WooCommerce數據前端，之後有一個大的空白空間）。請，如果有人能指出我正確的方向，它將非常感激！

下面是我在我functions.php文件：

 /** 
* Checks the cart to verify whether or not a product from a Category is in the cart 
* @param $category Accepts the Product Category Name, ID, Slug or array of them 
* @return bool 
*/ 
function qualifies_basedon_product_category($category) { 
    foreach(WC()->cart->cart_contents as $key => $product_in_cart) { 
     if(has_term($category, 'fee', get_id_from_product($product_in_cart, false))) { 
      return true; 
     } 
    } 
    // Return false in case anything fails 
    return false; 
} 

/** 
* Adds a specific product to the cart 
* @param $product_id Product to be added to the cart 
*/ 
function add_incentive_to_cart($product_id) { 
    // Check the cart for this product 
    $cart_id = WC()->cart->generate_cart_id($product_id); 
    $prod_in_cart = WC()->cart->find_product_in_cart($cart_id); 
    // Add the product only if it's not in the cart already 
    if(! $prod_in_cart) { 
     WC()->cart->add_to_cart($product_id); 
    } 
} 



add_action('woocommerce_check_cart_items', 'qualifies_for_incentive'); 
function qualifies_for_incentive() { 
    // Incentive product 
    $incentive_product_id = 506; 

    if(qualifies_basedon_product_category('fee')) { 
     add_incentive_to_cart($incentive_product_id); 
    } 
} 

Answer 1

你可以調查以下代碼 -

add_action('woocommerce_add_to_cart', 'my_woocommerce_add_to_cart', 10, 6); 

function my_woocommerce_add_to_cart($cart_item_key, $product_id, $quantity, $variation_id, $variation, $cart_item_data){ 
    $incentive_product_id = 506; 
    $category = 'fee'; 
    $taxonomy = 'fee'; 

    if(has_term($category, $taxonomy, $product_id)){  
     $cart_id = WC()->cart->generate_cart_id($incentive_product_id); 
     $prod_in_cart = WC()->cart->find_product_in_cart($cart_id); 

     // Add the product only if it's not in the cart already 
     if(! $prod_in_cart) { 
      WC()->cart->add_to_cart($incentive_product_id); 
     } 
    } 
} 

希望這可以幫助你。

Answer 2

到functions.php將這個：

function df_add_ticket_surcharge($cart_object) { 
global $woocommerce; 
$specialfeecat = 20763; // category id you want to check for 
$spfee = 0.00; // initialize special fee 
$spfeeperprod = 0.00; //special fee per product 
$found = $false; //required to make the code later only add the item once, also stop loops. 
$product_id = 38607; //product id of the one you want to add 

foreach ($cart_object->cart_contents as $key => $value) { 

    $proid = $value['product_id']; //get the product id from cart 
    $quantiy = $value['quantity']; //get quantity from cart 
    $itmprice = $value['data']->price; //get product price 

//check if the desired product is already in cart. 
if (sizeof($woocommerce->cart->get_cart()) > 0) { 
     foreach ($woocommerce->cart->get_cart() as $cart_item_key => $values) { 
      $_product = $values['data']; 
      if ($_product->id == $product_id) 
       $found = true; 
     } 
    } 

//check for the category and add desired product 
    $terms = get_the_terms($proid, 'product_cat'); //get taxonomy of the products 
    if ($terms && ! is_wp_error($terms)) : 
     foreach ($terms as $term) { 
      $catid = $term->term_id; 
      if($specialfeecat == $catid && ! $found) { 
       WC()->cart->add_to_cart(38607); 
      } 
     } 
    endif; 
    } 
} 
add_action('woocommerce_cart_calculate_fees', 'df_add_ticket_surcharge'); 

我修改從現有代碼的代碼，這就是爲什麼spfee和spfeeperprod仍然在那裏，但你並不真的需要他們這就是爲什麼我它們設置爲0。後來我發現少了什麼，使這個代碼工作是這一部分：

if (sizeof($woocommerce->cart->get_cart()) > 0) { 
     foreach ($woocommerce->cart->get_cart() as $cart_item_key => $values) { 
      $_product = $values['data']; 
      if ($_product->id == $product_id) 
       $found = true; 
     } 
    } 

這種檢查要添加哪些被指定爲「$ PRODUCT_ID」項目的產品ID。希望這有幫助（我昨天掙扎了很多，但今天早上終於有了突破！）