如何切換欄，如果條件

Question

我需要SKU，數量，價格和特殊的價格來更新數據庫。

我有的是：

CSV文件：

sku,qty,price 
123,1,150 
124,1,160 
125,1,160 
126,1,100 

在表produdct內容我有：

sku qty price special_price 
123 1 150  120 
124 1 160  110 
125 1 160  110 
126 1 100  null 

好，在我來說，我需要比較

if special_price is >= than price, 

if true update price 

else update special_price. 

我的php腳本是下一個：

$mageFilename = '../app/Mage.php'; 
require_once $mageFilename; 
Mage::setIsDeveloperMode(true); 
ini_set('display_errors', 1); 
umask(0); 
Mage::app('admin'); 
Mage::register('isSecureArea', 1); 
Mage::app()->setCurrentStore(Mage_Core_Model_App::ADMIN_STORE_ID); 

set_time_limit(0); 
ini_set('memory_limit','1024M'); 

/***************** UTILITY FUNCTIONS ********************/ 
function _getConnection($type = 'core_read'){ 
    return Mage::getSingleton('core/resource')->getConnection($type); 
} 

function _getTableName($tableName){ 
    return Mage::getSingleton('core/resource')->getTableName($tableName); 
} 

// Update Special Price 
function _getPrice($attribute_code = 'price'){ 
    $connection = _getConnection('core_read'); 
    $sql = "SELECT attribute_id 
       FROM " . _getTableName('eav_attribute') . " 
      WHERE 
       entity_type_id = ? 
       AND attribute_code = ?"; 
    $entity_type_id = _getEntityTypeId(); 
    return $connection->fetchOne($sql, array($entity_type_id, $attribute_code)); 
} 

// Update Price 
function _getSpecialPrice($attribute_code = 'special_price'){ 
    $connection = _getConnection('core_read'); 
    $sql = "SELECT attribute_id 
       FROM " . _getTableName('eav_attribute') . " 
      WHERE 
       entity_type_id = ? 
       AND attribute_code = ?"; 
    $entity_type_id = _getEntityTypeId(); 
    return $connection->fetchOne($sql, array($entity_type_id, $attribute_code)); 
} 
// Get Entity TypeID 
function _getEntityTypeId($entity_type_code = 'catalog_product'){ 
    $connection = _getConnection('core_read'); 
    $sql  = "SELECT entity_type_id FROM " . _getTableName('eav_entity_type') . " WHERE entity_type_code = ?"; 
    return $connection->fetchOne($sql, array($entity_type_code)); 
} 
// Get ID from SKU 
function _getIdFromSku($sku){ 
    $connection = _getConnection('core_read'); 
    $sql  = "SELECT entity_id FROM " . _getTableName('catalog_product_entity') . " WHERE sku = ?"; 
    return $connection->fetchOne($sql, array($sku)); 

} 
// Check if SKU exist in DB 
function _checkIfSkuExists($sku){ 
    $connection = _getConnection('core_read'); 
    $sql  = "SELECT COUNT(*) AS count_no FROM " . _getTableName('catalog_product_entity') . " WHERE sku = ?"; 
    $count  = $connection->fetchOne($sql, array($sku)); 
    if($count > 0){ 
     return true; 
    }else{ 
     return false; 
    } 
} 

// Switch price method if special_price is = or > price. 
function _checkPrice($sku) { 
    $connection = _getConnection('core_read'); 
    $sql  = "SELECT COUNT(*) AS count_no FROM " . _getTableName('eav_attribute') . " WHERE special_price >=" . $data[2]; 
    $count  = $connection->fetchOne($sql, array(_getIdFromSku($sku))); 
    if($count > 0){ 
     return true; 
    }else{ 
     return false; 
    } 
} 

function _updatePrice($data){ 
    $connection  = _getConnection('core_write'); 
    $sku   = $data[0]; 
    $qty  = $data[1]; 
    $price  = $data[2]; 
    $productId  = _getIdFromSku($sku); 
    $attributeId = _getPrice(); 

    $sql = "UPDATE " . _getTableName('catalog_product_entity_decimal') . " cped 
       SET cped.value = ? 
      WHERE cped.attribute_id = ? 
      AND cped.entity_id = ?"; 
    $connection->query($sql, array($qty, $price, $attributeId, $productId)); 
} 

function _updateSpecialPrice($data){ 
    $connection  = _getConnection('core_write'); 
    $sku   = $data[0]; 
    $qty  = $data[1]; 
    $price  = $data[2]; 
    $productId  = _getIdFromSku($sku); 
    $attributeId = _getSpecialPrice(); 

    $sql = "UPDATE " . _getTableName('catalog_product_entity_decimal') . " cped 
       SET cped.value = ? 
      WHERE cped.attribute_id = ? 
      AND cped.entity_id = ?"; 
    $connection->query($sql, array($qty, $price, $attributeId, $productId)); 
} 
/***************** UTILITY FUNCTIONS ********************/ 

$csv    = new Varien_File_Csv(); 
$data    = $csv->getData('data.csv'); //path to csv 
array_shift($data); 

$message = ''; 
$count = 1; 
foreach($data as $_data){ 
    if(_checkIfSkuExists($_data[0]) and _checkPrice == TRUE){ 
     try{ 
      _updatePrice($_data); 
      $message .= $count . ' Success:: Updated: ' . $_data[1] . 'Pret: ' . $_data[2] . ' Sku: ' . $_data[0] . '<br />'; 

     }catch(Exception $e){ 
      $message .= $count .'> Error:: ' . $_data[1] . ' AND ' . $_data[2] . ' of Sku ' . $_data[0] . ' => '.$e->getMessage().'<br />'; 
     } 
    }elseif(_checkIfSkuExists($_data[0]) and _checkPrice == FALSE){ 
     try{ 
      _updateSpecialPrice($_data); 
      $message .= $count . ' Updated: ' . $_data[1] . 'Pret: ' . $_data[2] . ' Sku: ' . $_data[0] . '<br />'; 

     }catch(Exception $e){ 
      $message .= $count .'> Error:: ' . $_data[1] . ' AND ' . $_data[2] . ' of Sku ' . $_data[0] . ' => '.$e->getMessage().'<br />'; 
     }else{ 
     $message .= $count .' Error:: Product with sku ' . $_data[0] . ' doesnt exist<br />'; 
    } 
    } 
    $count++; 
} 
echo $message; 

Answer 1

爲什麼你不使用magento的導入功能？如果您需要比較舊價格/特價與新價格，只需拉出產品清單並製作一個小腳本即可創建更新的導入csv。