Order Status – Processing Order Status in Magento

By default you can't adjust the order state when it's complete. This is because this state is protected.

A closer look at the code tells us why:

When you call setState the following is triggered in the Mage_Sales_Model_Order class.

public function setState($state, $status = false, $comment = '', $isCustomerNotified = null)
{
    return $this->_setState($state, $status, $comment, $isCustomerNotified, true);
}

Which, as you can see bubbles directly down to _setState.

protected function _setState($state, $status = false, $comment = '',
    $isCustomerNotified = null, $shouldProtectState = false)
{
    // attempt to set the specified state
    if ($shouldProtectState) {
        if ($this->isStateProtected($state)) {
            Mage::throwException(
                Mage::helper('sales')->__('The Order State "%s" must not be set manually.', $state)
            );
        }
    }
    $this->setData('state', $state);

    // add status history
    if ($status) {
        if ($status === true) {
            $status = $this->getConfig()->getStateDefaultStatus($state);
        }
        $this->setStatus($status);
        $history = $this->addStatusHistoryComment($comment, false); // no sense to set $status again
        $history->setIsCustomerNotified($isCustomerNotified); // for backwards compatibility
    }
    return $this;
}

In which all states that are passed in are checked using the isStateProtected method.

Check that method tells us that the 'complete' state is protected. Thus is being blocked for further updates.

public function isStateProtected($state)
{
    if (empty($state)) {
        return false;
    }
    return self::STATE_COMPLETE == $state || self::STATE_CLOSED == $state;
}

When an order is complete, usually it's invoiced and shipped etc. So why would you want to adjust the state back to 'processing'? That would mean the order is not shipped anymore, while a shipment is probably already created. That will probably give you some trouble further down the road.

For now at least you know why you can't adjust the order. Hopefully this helps you!

I can give you an example how to add additional status to existed payment method.

Magento by default in system / configuration has such as 'New Order Status'.

Let's look at SavedCC:

Now we change system.xml file.

Original:

                    <order_status translate="label">
                        <label>New Order Status</label>
                        <frontend_type>select</frontend_type>
                        <source_model>adminhtml/system_config_source_order_status_new</source_model>
                        <sort_order>2</sort_order>
                        <show_in_default>1</show_in_default>
                        <show_in_website>1</show_in_website>
                        <show_in_store>0</show_in_store>
                    </order_status>

You need to replace

<source_model>adminhtml/system_config_source_order_status_new</source_model>

with:

<source_model>adminhtml/system_config_source_order_status_newprocessing</source_model>

And you will get: