Magento層價格批量變化

Question

我需要一點幫助在這裏 - 下來是Magento價格更新示例og php代碼，有人請給我一個提示如何把關係在這段代碼。

例如，我需要這個：如果價格> = 500，然後tier = 1.8 以下代碼增加所有價格，但我只需要提高價格等於或高於500美元的產品。

<?php 

$server  = "localhost"; 
$database = ""; 
$user  = ""; 
$password = ""; 

$myConn = mysql_connect($server, $user, $password); 
$select = mysql_select_db($database, $myConn); 

$query = "SELECT 
      value_id, value 
     FROM 
      catalog_product_entity_decimal 
     ORDER BY 
      value_id 
     ASC"; 

$result = mysql_query($query) or die(mysql_error()); 

// 1.04 = 4% (duh) ovdje idu postavke marze 
$tier = 1.04; 
$i  = 0; 

while($row = mysql_fetch_array($result)) 
{ 
    if($row["value"] != NULL) 
    { 
     $value   = 0; 
     $value   = $row["value"]; 

     $value   = round($value * $tier); 


     $updQuery = "UPDATE 
         catalog_product_entity_decimal 
        SET 
         value = ".$value." 
        WHERE 
         value_id = ".$row["value_id"]; 

     $updResult = mysql_query($updQuery) or die(mysql_error()); 

     $i++; 

     print "value_id: ".$row["value_id"]." | "; 
     print "old price: ".$row["value"]." -> "; 
     print "new price: ".$value."<br/>"; 
    } 

} 

print "<br/><br/><hr><br/><b>".$i."</b> records updated.<br/><br/>Now go to system -> index management -> and reindex everything"; 

？>

Answer 1

The Magento way 
$tier = 1.04; 
$products = Mage::getModel('catalog/product')->getCollection 
    ->addAttributeToFilter('price' , array('gteq' => 500)) 
    ->load(); 
foreach($products as $product){ 
    $product->setPrice($product->getPrice() * $tier); 
    $product-save(); 
} 

sql direct query 
//first get price attribute id 
$sql = 'select attribute_id from eav_attribute where attribute_code= "price"'; 
$attribute_id = mysql_query($sql); 

//get entity id which price >=500 
$sql = "select eneity_id from catalog_product_entity_decimal d where attribute_id = {$attribute_id[0]} and d.value >= 500"; 
while($row = mysql_fetch_array($result)){ 
    // do something 
}