我寫了一個模塊,可以接收CSV文件並將數據添加到sales_flat_order表(代碼如下)。儘管我對Magento通過數據庫進行交互的懷疑和缺乏知識,但我能夠成功更新表中的必要列。但是,每次運行代碼時,它都會更新這些行,但始終會向表中添加一行額外的所有空值。我已經嘗試打印出原始SQL,但沒有看到任何無關的SQL調用,但它仍在繼續。Magento Zend_Db_Adapter_Abstract ::更新問題
下面是應該幫助解釋我在做什麼的代碼的重要代碼片段。希望這是別人遇到的已知問題,可以指引我朝着正確的方向前進。
首先,這是我的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>
正如在評論中說,因爲我沒有使用我自己的表(它初始化使用銷售/訂單我沒有提供任何實體資源模型(見一擊)
接下來,我已將此添加到我的的system.xml文件到文件輸入框中添加到配置:
<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用於上傳框的backend_model類:
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");
}
}
最後,這一切的肉是做所有工作的模型資源類。你可以在這裏看到,我在構造函數中調用_init('sales/order')
,這樣我就可以搭載sales_order資源模型,而不必建立單獨的數據庫連接(我假設這沒問題......它正在工作,但讓我知道如果這樣是一個壞主意)
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` = ?' => $_row['id']));
}
}
}
我剪了我的很多調試語句簡化它,但要注意的是,如果我呼應$ IMPORTDATA數組的大小總是3從預期是很重要的我的CSV。如果我將日誌記錄添加到Zend_Db_Adapter_Abstract以打印它運行的每個SQL語句,它只會運行3.所以我不知道爲什麼要插入額外的行。
在此先感謝您的幫助!
我啓用了MySql日誌記錄在我的服務器上,並且我發現了有問題的INSERT,但我仍然困惑於它爲什麼這樣做: 112 Query INSERT INTO'sales_flat_order'()VALUES() 112查詢更新'sales_flat_order' SET'real_ship_cost' ='1.23'WHERE(increment_id ='100000001') 112查詢更新'sales_flat_order' SET'real_ship_cost' ='2.34'WHERE增量_id ='100000002') 112查詢更新'sales_flat_order' SET' real_ship_cost' ='3.45'WHERE(increment_id ='100000003') 112查詢提交 – BrianVPS