public function tax_class()
{
$items = Mage::getModel('tax/class')->getCollection()->getItems();
foreach ($items as $item) {
$item->delete();
}
$this->conn->query('ALTER TABLE `tax_class` AUTO_INCREMENT=1');
foreach ($this->objects['tax_class'] as $item) {
$model = new Mage_Tax_Model_Class();
foreach ($item as $key => $value) {
$model->setData($key, $value);
}
try {
$model->save();
} catch (Exception $e) {
mage::d($e->getMessage());
}
}
}
/**
* Check if customer tax class exists and has not been used yet (in Tax Rules or Customer Groups)
*
* @param Mage_Tax_Model_Class $classModel
* @throws Mage_Core_Exception
*/
protected function _checkTaxClassUsage(Mage_Tax_Model_Class $classModel)
{
if (!$classModel->getId()) {
Mage::throwException(Mage::helper('Mage_Tax_Helper_Data')->__('This class no longer exists.'));
}
$ruleCollection = Mage::getModel('Mage_Tax_Model_Calculation_Rule')->getCollection()->setClassTypeFilter($classModel->getClassType(), $classModel->getId());
if ($ruleCollection->getSize() > 0) {
Mage::throwException(Mage::helper('Mage_Tax_Helper_Data')->__('You cannot delete this tax class as it is used in Tax Rules. You have to delete the rules it is used in first.'));
}
$customerGroupCollection = Mage::getModel('Mage_Customer_Model_Group')->getCollection()->addFieldToFilter('tax_class_id', $classModel->getId());
$groupCount = $customerGroupCollection->getSize();
if ($groupCount > 0) {
Mage::throwException(Mage::helper('Mage_Tax_Helper_Data')->__('You cannot delete this tax class as it is used for %d customer groups.', $groupCount));
}
}
/**
* Get all possible options for specified class name (customer|product)
*
* @param string $classFilter
* @return array
*/
public function getAllOptionsForClass($classFilter)
{
$classes = $this->_taxClass->getCollection()->setClassTypeFilter($classFilter)->toOptionArray();
return $classes;
}
/**
* Check if product tax class exists and has not been used yet (in Tax Rules or Products)
*
* @param Mage_Tax_Model_Class $classModel
*/
protected function _checkProductTaxClassUsage(Mage_Tax_Model_Class $classModel)
{
if (!$classModel->getId() || $classModel->getClassType() != Mage_Tax_Model_Class::TAX_CLASS_TYPE_PRODUCT) {
Mage::throwException(Mage::helper('Mage_Tax_Helper_Data')->__('This class no longer exists.'));
}
$ruleCollection = Mage::getModel('Mage_Tax_Model_Calculation_Rule')->getCollection()->setClassTypeFilter(Mage_Tax_Model_Class::TAX_CLASS_TYPE_PRODUCT, $classModel->getId());
if ($ruleCollection->getSize() > 0) {
Mage::throwException(Mage::helper('Mage_Tax_Helper_Data')->__('You cannot delete this tax class as it is used in Tax Rules. You have to delete the rules it is used in first.'));
}
$productCollection = Mage::getModel('Mage_Catalog_Model_Product')->getCollection()->addAttributeToFilter('tax_class_id', $classModel->getId());
$productCount = $productCollection->getSize();
if ($productCount > 0) {
Mage::throwException(Mage::helper('Mage_Tax_Helper_Data')->__('You cannot delete this tax class as it is used for %d products.', $productCount));
}
}
