Question

事情丢失或破坏，所以基本上，我想要做的是将实际库存数据库与zencart商店库存进行比较，如果它大于真实库存数据库，则更新zencart库存。

我的第一个数据库（zencart）和第二个数据库（库存）中有一个表'产品'，如下所示： products_id products_model products_quantity

zencart.products :
products_id : 3 | products_model : J293-04 | products_quantity : 4 | 
[...]

inventory.products :
products_id : 15 | products_model : J293-04 | products_quantity : 1 | 
[...]

inventory.products数据库是可用产品的实际数量。

当zencart股票查询功能测试货物是否可用时，我希望它将库存数量与库存数据库进行比较。如果zencart库存数量>然后，比库存股票将zencart库存数量更新为库存库存。

zencart股票函数使用zencart.products.product_id 所以必须使用zencart.products.products_model来比较2个数据库。

这就是我所说的取代zencart库存计数功能。它似乎过于复杂，我不确定是否有全球库存$ db2;需要加入。

function zen_get_products_stock($products_id) {
global $db;
$products_id = zen_get_prid($products_id);

$stock_query = "select products_quantity
                from " . TABLE_PRODUCTS . "
                where products_id = '" . (int)$products_id . "'";
$stock_model_query = "select products_model
                from " . TABLE_PRODUCTS . "
                where products_id = '" . (int)$products_id . "'";

$inv_stock_query = "select products_quantity
                from inventory.products.products_model
                where zencart.products.products_model =
                      inventory.products.products_model

if $stock_query > $inv_stock_query 
{
   $stock_query = $inv_stock_query
   UPDATE 
   inventory.products, 
   zencart.products 
   SET 
   zencart.products.products_quantity = inventory.products.products_quantity
   WHERE 
   zencart.products.products_model = inventory.products.model
}

$stock_values = $db->Execute($stock_query);

return $stock_values->fields['products_quantity'];
}

来自zencart的原始代码/ includes / functions / functions_lookups.com

/**
 * Return a product's stock count.
 *
 * @param int The product id of the product who's stock we want
*/
  function zen_get_products_stock($products_id) {
    global $db;
    $products_id = zen_get_prid($products_id);
    $stock_query = "select products_quantity
                from " . TABLE_PRODUCTS . "
                where products_id = '" . (int)$products_id . "'";

$stock_values = $db->Execute($stock_query);

return $stock_values->fields['products_quantity'];
}

/**
 * Check if the required stock is available.
 *
 * If insufficent stock is available return an out of stock message
 *
 * @param int The product id of the product whos's stock is to be checked
 * @param int Is this amount of stock available
 *
 * @TODO naughty html in a function
*/
function zen_check_stock($products_id, $products_quantity) {
$stock_left = zen_get_products_stock($products_id) - $products_quantity;
$out_of_stock = '';

if ($stock_left < 0) {
  $out_of_stock = '<span class="markProductOutOfStock">' . STOCK_MARK_PRODUCT_OUT_OF_STOCK . '</span>';
}

return $out_of_stock;
  }

感谢您的帮助。

双数据库比较和更新库存值zencart stock函数

0 个答案: