自动为WooCommerce中特定产品类别的购物车产品添加产品

问题描述

我有一个代码可以将产品(定金)自动添加到客户购物车，无论他选择了哪种产品-均在functions.php中包含以下代码.效果很好.

I have a code to add a product (a deposit) automatically to a customers cart, no matter what product he has chosen - with the code below inside the functions.php. This works fine.

但是，现在，如何扩展仅当客户从特定产品类别中选择产品后才自动将其添加到购物车的代码?例如.客户购买礼品卡时，不应将订金添加到购物车中.

But now, how to extend the code that this product will only be automatically added to the cart when the customer has chosen a product from a specific product category? E.g. the deposit shouldn't be added to the cart when a customer buys a gift card.

非常感谢！

/**
 * Automatically adds product to cart on visit
 */
add_action( 'template_redirect', 'add_product_to_cart' );
function add_product_to_cart() {
    if ( ! is_admin() ) {
        $product_id = 1267; //product added automatically
        $found = false;
        //check if product already in cart
        if ( sizeof( WC()->cart->get_cart() ) > 0 ) {
            foreach ( WC()->cart->get_cart() as $cart_item_key => $values ) {
                $_product = $values['data'];
                if ( $_product->get_id() == $product_id )
                    $found = true;
            }
            // if product not found, add it
            if ( ! $found )
                WC()->cart->add_to_cart( $product_id );
        } else {

        }
    }
}

推荐答案

您将不得不以完全不同的方式使用Wordpress条件函数 hast_term().

You will have to use the Wordpress conditional function hast_term() in a completely different way.

如果购物车中已有产品类别的产品，则以下代码将自动将预定义产品添加到购物车中:

The following code will auto add to cart a pre-defined product, if a product from a product category is already in cart:

add_action( 'woocommerce_before_calculate_totals', 'auto_add_item_based_on_product_category', 10, 1 );
function auto_add_item_based_on_product_category( $cart ) {
    if ( is_admin() && ! defined( 'DOING_AJAX' ) )
        return;

    if ( did_action( 'woocommerce_before_calculate_totals' ) >= 2 )
        return;

    $required_categories = array('t-shirts'); // Required product category(ies)
    $added_product_id = 1267; // Specific product to be added automatically
    $matched_category = false;

    // Loop through cart items
    foreach ( $cart->get_cart() as $item_key => $item ) {
        // Check for product category
        if( has_term( $required_categories, 'product_cat', $item['product_id'] ) ) {
            $matched_category = true;
        }
        // Check if specific product is already auto added
        if( $item['data']->get_id() == $added_product_id ) {
            $saved_item_key = $item_key; // keep cart item key
        }
    }

    // If specific product is already auto added but without items from product category
    if ( isset($saved_item_key) && ! $matched_category ) {
        $cart->remove_cart_item( $saved_item_key ); // Remove specific product
    }
    // If there is an item from defined product category and specific product is not in cart
    elseif ( ! isset($saved_item_key) && $matched_category ) {
        $cart->add_to_cart( $added_product_id ); // Add specific product
    }
}

代码进入您的活动子主题(或活动主题)的functions.php文件中.经过测试，可以正常工作.

Code goes in functions.php file of your active child theme (or active theme). Tested and works.

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