Observer方法间数据传递：Magento订单与报价自定义数据同步

Let's walk through how to get your custom stoque data flowing from the one-step checkout to your quote and order correctly. First, I spot a quick fix needed in your config.xml, then we'll set up observers to handle the data transfer, and verify everything works.

Step 1: Fix Your config.xml Fieldset Mapping #

Your current fieldsets configuration uses a generic <attributename> node, but this needs to match your actual attribute name (stoque). Update that section to:

<fieldsets>
    <sales_convert_quote>
        <stoque>
            <to_order>*</to_order>
        </stoque>
    </sales_convert_quote>
    <sales_convert_order>
        <stoque>
            <to_quote>*</to_quote>
        </stoque>
    </sales_convert_order>
</fieldsets>

This tells Magento to automatically copy the stoque value between quotes and orders during conversion.

Step 2: Add Event Observers to Capture Checkout Data #

Next, we'll add observers to capture the checkbox value from the checkout form and save it to the quote, then ensure it gets copied to the order. Add this <events> block inside the <global> node of your config.xml:

<events>
    <!-- Capture stoque value when shipping method is saved -->
    <checkout_controller_onepage_save_shipping_method>
        <observers>
            <vendor_module_save_stoque_to_quote>
                <class>modulename/observer</class>
                <method>saveStoqueToQuote</method>
            </vendor_module_save_stoque_to_quote>
        </observers>
    </checkout_controller_onepage_save_shipping_method>
    
    <!-- Fallback: Ensure stoque is copied to order during quote submission -->
    <sales_model_service_quote_submit_before>
        <observers>
            <vendor_module_copy_stoque_to_order>
                <class>modulename/observer</class>
                <method>copyStoqueToOrder</method>
            </vendor_module_copy_stoque_to_order>
        </observers>
    </sales_model_service_quote_submit_before>
</events>

Step 3: Create the Observer Class #

Create the observer file at app/code/local/Vendor/Module/Model/Observer.php with this code:

<?php
class Vendor_Module_Model_Observer
{
    /**
     * Save stoque checkbox value to quote when shipping method is saved
     */
    public function saveStoqueToQuote(Varien_Event_Observer $observer)
    {
        $request = $observer->getEvent()->getRequest();
        $shippingPostData = $request->getPost('shipping');
        
        // Check if our stoque value exists in the POST data
        if (isset($shippingPostData['stoque'])) {
            $quote = Mage::getSingleton('checkout/session')->getQuote();
            // Convert checkbox value to integer (1 = checked, 0 = unchecked)
            $quote->setStoque((int)$shippingPostData['stoque']);
            $quote->save();
        }
        
        return $this;
    }

    /**
     * Manually copy stoque from quote to order as a fallback
     */
    public function copyStoqueToOrder(Varien_Event_Observer $observer)
    {
        $quote = $observer->getEvent()->getQuote();
        $order = $observer->getEvent()->getOrder();
        
        if ($quote->getStoque() !== null) {
            $order->setStoque($quote->getStoque());
        }
        
        return $this;
    }
}

Step 4: Verify Your Checkout Template Input Name #

Make sure the checkbox in your shipping method template uses the correct name attribute so the data is included in the shipping POST request:

<input type="checkbox" name="shipping[stoque]" id="stoque-checkbox" value="1" />
<label for="stoque-checkbox"><?php echo $this->__('Que to service station') ?></label>

Step 5: Test the Flow #

1. Clear your Magento cache (System > Cache Management)
2. Go through the one-step checkout, check the "Que to service station" checkbox
3. After placing the order, check your sales_flat_quote and sales_flat_order tables—you should see the stoque column set to 1 (or 0 if you left it unchecked)

This setup ensures your custom data is captured from the checkout, saved to the quote, and synced to the order reliably.

内容的提问来源于stack exchange，提问作者Alexander Zelenchuk