How to update custom options programatically in magento?

Question

I have lot of products with custom options, now I have requirement to update only custom options through csv file. so how we can do this programatically?

Answer 1

Do you create a module to do that ? If you do, you must use the cron system of Magento and call a method of a custom model :

    
    
        
            
                
                    0,15,30,45 * * * *
                
                
                    test/testmodel::testMethod
                
            
        
    

When this is done, you can update the option of a specific product by using the model Mage_Catalog_Model_Product_Option. I don't know how the CSV is made, but the algorithm can be something like that :

// foreach option
/** @var $opt Mage_Catalog_Model_Product_Option */
$opt = Mage::getModel('catalog/product_option');
$opt->setProduct($product);

$optionArray = array(
    'is_delete' => 0,
    'title' => 'Blabla',
    'previous_group' => '',
    'previous_type' => '',
    'type' => 'field',  //can be radio, drop_down, file, area...
    'is_require' => 0,
    'sort_order' => 42,
    'values' => array()
);

$opt->addOption($optionArray);
$opt->saveOptions();
// end foreach

Also check this link : http://subesh.com.np/2009/12/adding-custom-options-product-magento/