Question

If I add these columns:

$installer->run("ALTER TABLE sales_flat_order_item add COLUMN shipping_status_id int");
$installer->run("ALTER TABLE sales_flat_quote_item add COLUMN shipping_status_id int");

And run this test 2 times:

    $o = Mage::getModel('sales/order_item');
    $o->load(92);

    print $o->getShippingStatusId() . "\n";

    $o->setShippingStatusId(123);
    $o->save();

I see nothing.

If I drop the columns and add:

$installer->run("ALTER TABLE sales_flat_order_item add COLUMN shipping_status int");
$installer->run("ALTER TABLE sales_flat_quote_item add COLUMN shipping_status int");

And run this test 2 times:

    $o = Mage::getModel('sales/order_item');
    $o->load(92);

    print $o->getShippingStatus() . "\n";

    $o->setShippingStatus(123);
    $o->save();

Then it works, value is saved and I can get it back.

The difference is _id in the column. Why does this not work in the 1st example? Is there something special about it? I checked it a couple of times.

Did another test, added both columns:

$installer->run("ALTER TABLE sales_flat_order_item add COLUMN shipping_status_id int");
$installer->run("ALTER TABLE sales_flat_order_item add COLUMN shipping_status int");

$installer->run("ALTER TABLE sales_flat_quote_item add COLUMN shipping_status_id int");
$installer->run("ALTER TABLE sales_flat_quote_item add COLUMN shipping_status int");

Test:

        $o = Mage::getModel('sales/order_item');
    $o->load(92);

    print $o->getItemId() . "/" . $o->getShippingStatusId() . "\n";
    print $o->getItemId() . "/" . $o->getShippingStatus() . "\n";

    $o->setShippingStatusId(123);
    $o->setShippingStatus(456);
    $o->save();

Only 456 value is set and get.

/var/cache is deleted.

Answer 1

You need to delete Magento cache physically (/var/cache/) after columns adding. Zend caches your table structure, so it needed to be refreshed after update.

Also, try to use

$o->setData("shipping_status_id", 123);

Try to use debugger to understand problem better.

Also you may do

$o->setShippingStatusId(123); 
var_dump($o->getData()); 

and check if ‘shipping_status_id’ exist in data