Magento API 'Exception' 消息 'Item (Mage_Sales_Model_Order) with the same id "X" already exist'

Magento API 'Exception' with message 'Item (Mage_Sales_Model_Order) with the same id "X" already exist'

我正在尝试使用 Magento REST 获取订单列表 API。

我们使用的 REST 请求非常基本：http://www.example.com/api/rest/orders

响应显示下一个错误：

{
  "messages": {
    "error": [
      {
        "code": 0,
        "message": "Item (Mage_Sales_Model_Order) with the same id \"54\" already exist"
      }
    ]
  }
}

检查我的异常日志以查看发生了什么并获得错误的下一个回溯：

2015-09-10T21:54:59+00:00 ERR (3):
exception 'Exception' with message 'Item (Mage_Sales_Model_Order) with the same id "54" already exist' in /path/to/site/lib/Varien/Data/Collection.php:373
Stack trace:
#0 /path/to/site/lib/Varien/Data/Collection/Db.php(576): Varien_Data_Collection->addItem(Object(Mage_Sales_Model_Order))
#1 /path/to/site/lib/Varien/Data/Collection.php(301): Varien_Data_Collection_Db->load()
#2 /path/to/site/app/code/core/Mage/Sales/Model/Api2/Order.php(302): Varien_Data_Collection->getItems()
#3 /path/to/site/app/code/core/Mage/Api2/Model/Resource.php(245): Mage_Sales_Model_Api2_Order->_retrieveCollection()
#4 /path/to/site/app/code/core/Mage/Api2/Model/Dispatcher.php(74): Mage_Api2_Model_Resource->dispatch()
#5 /path/to/site/app/code/core/Mage/Api2/Model/Server.php(239): Mage_Api2_Model_Dispatcher->dispatch(Object(Mage_Api2_Model_Request), Object(Mage_Api2_Model_Response))
#6 /path/to/site/app/code/core/Mage/Api2/Model/Server.php(107): Mage_Api2_Model_Server->_dispatch(Object(Mage_Api2_Model_Request), Object(Mage_Api2_Model_Response), Object(Mage_Api2_Model_Auth_User_Admin))
#7 /path/to/site/api.php(67): Mage_Api2_Model_Server->run()
#8 {main}

我修改了文件 app/code/core/Mage/Sales/Model/Api2/Order.php（函数 _retrieveCollection）并添加了一行以在日志中打印一些信息：

Mage::log($collection->getSelect(),null,'mylog.log');

这是输出的一部分：

    [_parts:protected] => Array
        (
            [straightjoin] =>
            [distinct] =>
            [columns] => Array
                (
                    [0] => Array
                        (
                            [0] => main_table
                            [1] => *
                            [2] =>
                        )

                    [1] => Array
                        (
                            [0] => payment_method
                            [1] => method
                            [2] => payment_method
                        )

                    [2] => Array
                        (
                            [0] => gift_message
                            [1] => sender
                            [2] => gift_message_from
                        )

                    [3] => Array
                        (
                            [0] => gift_message
                            [1] => recipient
                            [2] => gift_message_to
                        )

                    [4] => Array
                        (
                            [0] => gift_message
                            [1] => message
                            [2] => gift_message_body
                        )

                    [5] => Array
                        (
                            [0] => order_tax
                            [1] => title
                            [2] => tax_name
                        )

                    [6] => Array
                        (
                            [0] => order_tax
                            [1] => percent
                            [2] => tax_rate
                        )

                )

            [union] => Array
                (
                )

            [from] => Array
                (
                    [main_table] => Array
                        (
                            [joinType] => from
                            [schema] =>
                            [tableName] => sales_flat_order
                            [joinCondition] =>
                        )

                    [payment_method] => Array
                        (
                            [joinType] => left join
                            [schema] =>
                            [tableName] => sales_flat_order_payment
                            [joinCondition] => main_table.entity_id = payment_method.parent_id
                        )

                    [gift_message] => Array
                        (
                            [joinType] => left join
                            [schema] =>
                            [tableName] => gift_message
                            [joinCondition] => main_table.gift_message_id = gift_message.gift_message_id
                        )

                    [order_tax] => Array
                        (
                            [joinType] => left join
                            [schema] =>
                            [tableName] => sales_order_tax
                            [joinCondition] => main_table.entity_id = order_tax.order_id
                        )

                )

            [where] => Array
                (
                )

            [group] => Array
                (
                )

            [having] => Array
                (
                )

            [order] => Array
                (
                )

            [limitcount] =>
            [limitoffset] =>
            [forupdate] =>
        )

    [_tableCols:protected] => Array
        (
        )

)

如果我理解正确，那意味着 SQL 语句类似于：

SELECT 
    main_table.*,
    payment_method.method AS method,
    gift_message.sender AS gift_message_from,
    gift_message.recipient AS gift_message_to,
    gift_message.message AS gift_message_body,
    order_tax.title AS tax_name,
    order_tax.percent AS tax_rate
 FROM
 sales_flat_order AS main_table LEFT JOIN
 sales_flat_order_payment AS payment_method ON main_table.entity_id = payment_method.parent_id LEFT JOIN
 gift_message ON main_table.gift_message_id = gift_message.gift_message_id LEFT JOIN
 sales_order_tax AS order_tax ON main_table.entity_id = order_tax.order_id

在手动 运行ning 上一个查询之后，它得出了不止一行具有相同 entity_id (sales_flat_order) 的行。这些 'duplicated' entity_id 行似乎是稍后使用 Varien_Data_Collection->addItem

时的问题

使具有相同 entity_id 的两行出现在结果集中的查询部分是 LEFT JOIN sales_order_tax。 table 包含的每个订单可以包含 N 行，因为每一行都包含应用的不同税收规则。

For example in Canada we collect two different Tax Rules combined for some areas. In British Columbia we collect GST 5% (country specific) plus PST 7% (province specific).

我是不是遗漏了一些明显的东西，还是我 运行 遇到了错误？

非常感谢任何帮助，感谢阅读！

P.S。我的问题与此处描述的问题非常接近：Magento API V2 Sales Orders List Not Working

经过一段时间的尝试，我想我找到了解决办法，所以我把它贴在这里以供将来参考。

解决方案

我们需要修改集合的查询，在开始迭代 Mage_Sales_Model_Api2_Order::_retrieveCollection 中的项目之前按 sales_flat_order.entity_id 分组。

由于修改核心文件不是一个好习惯，我们可以将核心 class 复制到本地代码池并根据需要进行修改。 Magento 将使用本地文件夹下的 class 覆盖核心 class.

  1. 复制app/code/core/Mage/Sales/Model/Api2/Order.php到app/code/local/Mage/Sales/Model/Api2/Order.php
  2. 修改本地代码池文件夹下的文件(app/code/local/Mage/Sales/Model/Api2)
  3. 查找函数 _retrieveCollection（Magento 1.9.2 中的第 288 行左右）
  4. 在 $this->_addTaxInfo($collection); 行之后，您应该添加： $collection->getSelect()->group('main_table.entity_id');

缺点

如果我们正在更新 Magento，我们希望将 Mage_Sales_Model_Api2_Order class 的当前版本与新版本进行比较，如果我们发现差异，我们将重复制作副本的过程本地代码池文件夹下的core文件，重新编译