问题描述
我必须将一些自定义金额的订单项添加到我的购物车中.商务产品以 price = 0 保存,我的模块计算价格并将订单项添加到购物车/订单,但我不明白如何以编程方式设置价格.
I have to add to my cart some line items with a custom amount.The commerce product is saved with price = 0, and my module compute the price and add the line item to the cart/order, but i dont understand how to set programmatically the price.
我已阅读有关使用规则的信息,但我需要我的模块能够设置/更改价格,无需调用规则.
I've read about using Rules, but I need my module to be able to set/alter the price, without invoking rules.
我尝试过使用实体包装器,我尝试更改使用 commerce_product_line_item_new() 创建的行项目,但没有任何结果,当行项目进入购物车时始终具有原始产品价格(在我的情况下为 0).
I've tryed with an entity wrapper, i tryed to alter the line item created with commerce_product_line_item_new(), but nothing, when the line item gets into the cart always has the original product price (in my case, 0).
如何以编程方式更改订单项价格?
How to alter a line item price programmatically?
到目前为止,我的代码如下所示:
My code so far looks like:
// For debugging, this function is called by hook_menu()
function mymodule_test($product_id)
{
global $user;
$user = user_load($user->uid);
$order = commerce_cart_order_load($user->uid);
$order_wrapper = entity_metadata_wrapper('commerce_order', $order);
$product = commerce_product_load($product_id);
$line_item = commerce_product_line_item_new(
$product,
1,
0,
array(
),
'cover'
);
$line_item_wrapper = entity_metadata_wrapper("commerce_line_item", $line_item);
$line_item_wrapper->commerce_unit_price->data = commerce_price_component_add(
$line_item_wrapper->commerce_unit_price->value(),
'base_price',
array(
'amount' => 1234,
'currency_code' => 'EUR',
'data' => array(),
),
TRUE
);
$insert_line_item = commerce_cart_product_add($user->uid, $line_item_wrapper->value(), FALSE);
return 'done';
}
奇怪的是,我试图修改 commerce/modules/line_item/commerce_line_item.rules.inc 中的 commerce_line_item_unit_price_amount() 的代码,但是这个测试:
The strange thing, is that I tryed to adapt the code of commerce_line_item_unit_price_amount() found in commerce/modules/line_item/commerce_line_item.rules.inc, but this test:
<?php
global $user;
$product = commerce_product_load(4); // my commerce product for test
$line_item = commerce_product_line_item_new(
$product,
1,
0,
array(
),
'cover' // I do have this line_items type
);
// manually set amount and component name
$amount = 1234;
$component_name = 'base_price'; // tryed with discount, nothing change
$wrapper = entity_metadata_wrapper('commerce_line_item', $line_item);
$unit_price = commerce_price_wrapper_value($wrapper, 'commerce_unit_price', TRUE);
// Calculate the updated amount and create a price array representing the
// difference between it and the current amount.
$current_amount = $unit_price['amount'];
$updated_amount = commerce_round(COMMERCE_ROUND_HALF_UP, $amount);
$difference = array(
'amount' => $updated_amount - $current_amount,
'currency_code' => $unit_price['currency_code'],
'data' => array(),
);
// Set the amount of the unit price and add the difference as a component.
$wrapper->commerce_unit_price->amount = $updated_amount;
$wrapper->commerce_unit_price->data = commerce_price_component_add(
$wrapper->commerce_unit_price->value(),
$component_name,
$difference,
TRUE
);
$insert_line_item = commerce_cart_product_add($user->uid, $line_item, FALSE);
?>
仍然失败,line_item 进入购物车,但使用参考产品的原价.
still fail, the line_item get into the cart but with the original price of the referenced product.
有什么想法吗?
推荐答案
对于那些不想使用规则,希望直接改变价格的人.这是我的解决方案:
For those people who don't want to use rules and hope to alter the price directly. Here is my solution:
// Alter the price in list and single product page.
function my_module_commerce_product_calculate_sell_price_line_item_alter($line_item){
$price = 100; //1 dollar
$line_item->commerce_unit_price[LANGUAGE_NONE]['0']['amount'] = $price;
}
// Alter the price in cart & order.
function my_module_commerce_cart_line_item_refresh($line_item, $order_wrapper){
$price = 100; //1 dollar
$line_item->commerce_unit_price[LANGUAGE_NONE]['0']['amount'] = $price;
// Alter the base_price component.
$line_item->commerce_unit_price[LANGUAGE_NONE]['0']['data']['components']['0']['price']['amount'] = $price;
}
这篇关于Drupal Commerce Line Items:更改价格?的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!