无法以编程方式关联产品

我正在开发一个magento模块，其中以编程方式创建可配置和简单的产品 . 以下代码创建可配置和简单的产品，但不关联它们：

$sProduct = Mage::getModel('catalog/product');

$sProduct
    ->setTypeId(Mage_Catalog_Model_Product_Type::TYPE_SIMPLE)
    ->setStatus(Mage_Catalog_Model_Product_Status::STATUS_ENABLED)
    ->setVisibility(Mage_Catalog_Model_Product_Visibility::VISIBILITY_NOT_VISIBLE)
    ->setSku($sku)
    ->setName($name)
    ->setPrice($price)
    ->setAttributeSetId($set_id) //id of set which contains size_range_c attribute
    ->setData("size_range_c", $option_id)
    ->setData("color", $colorId) //another attribute in set but not required
    ->setDescription($description)
    ->setShortDescription($short_description)
    ->setTaxClassId(0);

$sProduct->setStockData(array(
    'is_in_stock' => 1,
    'qty' => $qty
));

$sProduct->save();

$cProduct = Mage::getModel('catalog/product');
$cProduct->setTypeId(Mage_Catalog_Model_Product_Type::TYPE_CONFIGURABLE)
    ->setVisibility(Mage_Catalog_Model_Product_Visibility::VISIBILITY_BOTH)
    ->setStatus(Mage_Catalog_Model_Product_Status::STATUS_ENABLED)
    ->setSku($csku)
    ->setName($cname)
    ->setPrice($price)
    ->setAttributeSetId($set_id) //same set is used for both configurable and simple product
    ->setUrlKey($url)
    ->setDescription($description)
    ->setShortDescription($short_description)
    ->setTaxClassId(0);

$all_child_products = array();
$all_child_products[$sProduct->getId()] = array(
    $sv = array('attribute_id' => $attrId, //attrbute id of size_range_c
                'label' => $attr_name, //option name
                'value_index' => $option_id, //option_id
                'pricing_value' => 0, 
                'is_percent' => 0)
);

$size_values = array();
$size_values[] = $sv;

$_attributes = Mage::getResourceModel('eav/entity_attribute_collection')
    ->addFieldToFilter('attribute_code', 'size_range_c');
$attribute = $_attributes->getFirstItem(); //get data for size_range_c

$cProduct->setConfigurableProductsData($all_child_products);
$cProduct->setConfigurableAttributesData(array(
    array_merge($attribute->getData(), array('label' => '', 'values' => $size_values))
));

$cProduct->setCanSaveConfigurableAttributes(true);
$cProduct->setCanSaveCustomOptions(true);

$cProduct->save();

基本上，我为每种颜色创建一个可配置的产品，然后为每种颜色的颜色提供一个简单的产品，然后将它们关联起来 . 可配置和简单产品都需要size_range_c属性 . 当我从管理面板看这些产品时，一切似乎都很好 . 我甚至尝试将简单产品手动关联到可配置，但以编程方式创建的产品不会出现在关联产品部分 .