Here, some of my code to manipulate Magento product options.
Creation
You first need an array with the options you want to save
$values = array();
foreach($options as $option)
{
$values[] = array(
'title' => $option['name'],
'price' => $option['price'],
'price_type' => 'fixed',
'sku' => $option['sku'],
'sort_order' => $x,
'is_delete' => '0',
);
$x++;
}
$newOption = array(
'title' => "Public",
'type' => 'drop_down',
'is_require' => 1,
'sort_order' => 20,
'is_delete' => '',
'previous_type' => '',
'previous_group' => '',
'values' =>$values,
);
Then add them to your product, I have seen a lot of different way to do it
$product->setCanSaveCustomOptions(true);
$product->getOptionInstance()->addOption($newOption);
//or
$product->getOptionInstance()->setOptions($newOption);
$product->getOptionInstance()->saveOptions();
$product->setHasOptions(1);
$product->setRequiredOptions(1);
$product->save();
or via OptionInstance
$optionInstance = $product->getOptionInstance();
$optionInstance->setOptions($newOption);
$optionInstance->setProduct($product);
$optionInstance->->saveOptions();
But it doesn’t work, I finally use this
$product->setProductOptions(array($newOption));
$product->setCanSaveCustomOptions(true);
$product->save()
To delete product options, there is several way too
$oldOptions = $product->getOptionInstance()->getOptions();
foreach ($oldOptions as $key => $option){
$oldOptions[$key]['is_delete'] = 1;
}
$product->getOptionInstance()->setOptions($oldOptions);
$product->getOptionInstance()->saveOptions();
//or
$optionInstance = $product->getOptionInstance()->unsetOptions();
But it doesn’t work too, so I use :
$options = Mage::getModel('catalog/product_option')->getCollection()->addFieldToFilter("product_id", $product->getId());
foreach($options as $option)
{
$option->delete();
}
Some more informations:
To see options on admin, your product entity (table catalog_product_entity) should have attribute (column) has_options set to 1.
Options are saved in tables : catalog_product_option, catalog_product_option_price, catalog_product_option_title, catalog_product_option_type_price, catalog_product_option_type_title and catalog_product_option_value.