我写了一个模块,可以接收CSV文件并将数据添加到sales_flat_order表(代码如下)。尽管我对Magento通过数据库进行交互的怀疑和缺乏知识,但我能够成功更新表中的必要列。但是,每次运行代码时,它都会更新这些行,但始终会向表中添加一行额外的所有空值。我已经尝试打印出原始SQL,但没有看到任何无关的SQL调用,但它仍在继续。Magento Zend_Db_Adapter_Abstract ::更新问题
下面是应该帮助解释我在做什么的代码的重要代码片段。希望这是别人遇到的已知问题,可以指引我朝着正确的方向前进。
首先,这是我的config.xml:
<?xml version="1.0" encoding="UTF-8"?>
<config>
<modules>
<VPS_Sorting>
<version>0.1.0</version>
</VPS_Sorting>
</modules>
<admin>
<routers>
<adminhtml>
<args>
<modules>
<sorting after="Mage_Adminhtml">VPS_Sorting</sorting>
</modules>
</args>
</adminhtml>
</routers>
</admin>
<global>
<models>
<sorting>
<class>VPS_Sorting_Model</class>
<resourceModel>sorting_mysql4</resourceModel>
</sorting>
<sorting_mysql4>
<class>VPS_Sorting_Model_Mysql4</class>
<!-- Doesn't need entities when you aren't using your own table!! -->
</sorting_mysql4>
</models>
<blocks>
<sorting>
<class>VPS_Sorting_Block</class>
</sorting>
</blocks>
<resources>
<!-- this section used to install/configure the DB dynamically -->
<sorting_setup>
<setup>
<module>VPS_Sorting</module>
<class>VPS_Sorting_Model_Mysql4_Setup</class>
</setup>
<connection>
<use>core_setup</use>
</connection>
</sorting_setup>
<!-- end setup section -->
<sorting_write>
<connection>
<use>core_write</use>
</connection>
</sorting_write>
<sorting_read>
<connection>
<use>core_read</use>
</connection>
</sorting_read>
</resources>
</global>
<adminhtml>
<acl>
...
</acl>
</adminhtml>
</config>
正如在评论中说,因为我没有使用我自己的表(它初始化使用销售/订单我没有提供任何实体资源模型(见一击)
接下来,我已将此添加到我的的system.xml文件到文件输入框中添加到配置:
<importcsv translate="label">
<label>Import CSV</label>
<comment>
<![CDATA[requires 2 columns, 'order_id' and 'real_ship_cost']]>
</comment>
<frontend_type>import</frontend_type>
<backend_model>sorting/import_csv</backend_model>
<sort_order>5</sort_order>
<show_in_default>1</show_in_default>
<show_in_website>1</show_in_website>
<show_in_store>1</show_in_store>
</importcsv>
下面是的system.xml用于上传框的backend_model类:
class VPS_Sorting_Model_Import_Csv extends Mage_Core_Model_Config_Data
{
protected function _construct()
{
parent::_construct();
$this->_init('sorting/csv'); //initialize the resource model
}
public function _afterSave()
{
if($rm = $this->_getResource())
$rm->uploadAndImport($this);
else
Mage::logException("Failed to load VPS_Sorting Resource Model");
}
}
最后,这一切的肉是做所有工作的模型资源类。你可以在这里看到,我在构造函数中调用_init('sales/order')
,这样我就可以搭载sales_order资源模型,而不必建立单独的数据库连接(我假设这没问题......它正在工作,但让我知道如果这样是一个坏主意)
class VPS_Sorting_Model_Mysql4_Csv extends Mage_Core_Model_Mysql4_Abstract
{
protected $_adapter;
protected function _construct()
{
$this->_init('sales/order', 'entity_id');
}
public function uploadAndImport(Varien_Object $object)
{
$csvFile = $_FILES['groups']['tmp_name']['actions']['fields']['importcsv']['value'];
$io = new Varien_Io_File();
$info = pathinfo($csvFile);
$io->open(array('path' => $info['dirname']));
$io->streamOpen($info['basename'], 'r');
// check and skip headers
$headers = $io->streamReadCsv();
// return parent::_afterSave();
if ($headers === false || count($headers) < 2 || $headers[0] != 'order_id' || $headers[1] != 'real_ship_cost')
{
$io->streamClose();
Mage::throwException("Invalid Real Shipping Cost CSV Format. File must contain 2 columns: 'order_id' and 'real_ship_cost'");
}
//Varien_Db_Adapter_Pdo_Mysql
$this->_adapter = $this->_getWriteAdapter();
$this->_adapter->beginTransaction();
try {
$importData = array();
while (false !== ($csvLine = $io->streamReadCsv()))
{
if (empty($csvLine)) {
continue;
}
$importData[] = array('id' => $csvLine[0], 'rsc' => $csvLine[1]);
if (count($importData) == 5000) {
$this->_saveImportData($importData);
$importData = array();
}
}
$this->_saveImportData($importData);
$io->streamClose();
} catch (Mage_Core_Exception $e) {
$this->_adapter->rollback();
$io->streamClose();
Mage::throwException($e->getMessage());
} catch (Exception $e) {
$this->_adapter->rollback();
$io->streamClose();
Mage::logException($e);
Mage::throwException('An error occurred while importing Real Shipping Cost data.');
}
$this->_adapter->commit();
return $this;
}
protected function _saveImportData($_data)
{
foreach($_data as $_row)
{
$this->_adapter->update($this->getMainTable(), array('real_ship_cost' => $_row['rsc']), array('`increment_id` = ?' => $_row['id']));
}
}
}
我剪了我的很多调试语句简化它,但要注意的是,如果我呼应$ IMPORTDATA数组的大小总是3从预期是很重要的我的CSV。如果我将日志记录添加到Zend_Db_Adapter_Abstract以打印它运行的每个SQL语句,它只会运行3.所以我不知道为什么要插入额外的行。
在此先感谢您的帮助!
我启用了MySql日志记录在我的服务器上,并且我发现了有问题的INSERT,但我仍然困惑于它为什么这样做: 112 Query INSERT INTO'sales_flat_order'()VALUES() 112查询更新'sales_flat_order' SET'real_ship_cost' ='1.23'WHERE(increment_id ='100000001') 112查询更新'sales_flat_order' SET'real_ship_cost' ='2.34'WHERE增量_id ='100000002') 112查询更新'sales_flat_order' SET' real_ship_cost' ='3.45'WHERE(increment_id ='100000003') 112查询提交 – BrianVPS