/**
* Retrieve all product tax classes as array
*
* @param bool $withEmpty Flag if an empty option should be prepended to the option array
* @return array Product tax class option array
*/
public function getAllOptions($withEmpty = false)
{
$options = parent::getAllOptions($withEmpty);
foreach ($options as $optionKey => $option) {
if (intval($option['value']) <= 0) {
continue;
}
/* @var $productCollection Mage_Catalog_Model_Resource_Product_Collection */
$productCollection = Mage::getModel('catalog/product')->getCollection()->addAttributeToFilter('tax_class_id', $option['value'])->setPageSize(1);
if (!$productCollection->getSize()) {
unset($options[$optionKey]);
}
}
return $options;
}
/**
*
* @param type $tax_category
* @param type $tax_class
* @return type
*/
public function getTaxClassId($tax_category, $tax_class)
{
if (!$tax_class) {
return 0;
}
// check it if exists
$taxCategories = new Mage_Tax_Model_Class_Source_Product();
$classes = $taxCategories->getAllOptions();
$tax_class_id = 0;
foreach ($classes as $class) {
if (strpos($class['label'], $tax_class) !== false) {
$tax_class_id = $class['value'];
break;
}
}
// create it if it doesn't exist
if (!$tax_class_id) {
$classModel = Mage::getModel('tax/class')->setData(array('class_type' => Mage_Tax_Model_Class::TAX_CLASS_TYPE_PRODUCT, 'class_name' => "{$tax_category} - {$tax_class}", 'op_avatax_code' => $tax_class));
$classModel->save();
$tax_class_id = $classModel->getId();
}
return $tax_class_id;
}
