On order Satus change event problem

[rui_silva1]

Hey,

I managed to do a module and it is working as I can see, but I need an event that start on order status change. In this case I need that when the order goes to "processing" it does a call to an API and add a tracking number to the order.

I thought in using the sales_order_save_after event, check if the order as changed to "processing" and if so do the call and add the tracking number. Idk if there is a better way to do this.

But the problem is that I can't manage to get the order information, if I try to do the invoice in the backoffice it sais that the invoice can't be saved at the moment.

In the module with the event sales_order_save_after I just have

<?php

namespace Custom\onStatusChange\Observer;

use Magento\Framework\Event\ObserverInterface;
use Magento\Framework\Event\Observer;
use Magento\Framework\App\Request\DataPersistorInterface;
use Magento\Framework\App\ObjectManager;

class StatusChange implements ObserverInterface
{
    /**
     *
     * @param Observer $observer
     * @return $this
     */
    public function execute(Observer $observer)
    {
        $order = $observer->getEvent()->getOrder();

        $incrementId = $order->getIncrementId();

        $writer = new \Zend\Log\Writer\Stream(BP . '/var/log/test.log');
        $logger = new \Zend\Log\Logger();
        $logger->addWriter($writer);
        $logger->info('Inc ID:');
        $logger->info($incrementId);

        return $this;
    }
}

Idk what's wrong.

Can someone help me with this?

Thanks

[Nishu Jindal]

Hi @rui_silva1 ,

Can you please check and follow below link solution. Hope this helps you.

https://magento.stackexchange.com/questions/125058/whats-the-best-event-way-to-listen-for-all-order-...

Thanks!

------------

Problem solved? Click Accept as Solution!

[rui_silva1]

Thanks!

So in my files is missing the:

etc/di.xml

Model/Plugin/Pluginname.php ?

What should I do in the plugin file?

Just this?

<?php

namespace Custom\onStatusChange\Model\Plugin;


class OrderStatePlugin implements ObserverInterface
{
    /**
     * @param \Magento\Sales\Api\OrderRepositoryInterface $subject
     * @param \Magento\Sales\Api\Data\OrderInterface $result
     * @return mixed
     * @throws \Exception
     */
    public function afterSave(
        \Magento\Sales\Api\OrderRepositoryInterface $subject,
        $result
    ) {
        if($result->getState() == Order::STATE_COMPLETE) {
            ......
        }
        return $result;
    }
}

with the register.xml, etc/event.xml, etc/module.xml and the Observer/StatusChange.php?

What's the best way to test this?

Thanks!

[rui_silva1 · Accepted solution]

I managed to get it to work like

etc/events.xml

<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Event/etc/events.xsd">
    <event name="sales_order_save_after">
        <observer name="on_status_change" instance="Custom\onStatusChange\Observer\StatusChange"/>
    </event>
</config>

etc/module.xml

<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Module/etc/module.xsd">
    <module name="Custom_onOrderCreate" setup_version="1.0.0" />
</config>

register.php

<?php
\Magento\Framework\Component\ComponentRegistrar::register(
    \Magento\Framework\Component\ComponentRegistrar::MODULE,
    'Custom_onOrderCreate',
    __DIR__
);

Observer/StatusChange.php

<?php

namespace Custom\onStatusChange\Observer;

use Magento\Framework\Event\ObserverInterface;
use Magento\Framework\Event\Observer;
use Magento\Framework\App\Request\DataPersistorInterface;
use Magento\Framework\App\ObjectManager;
use Magento\Framework\Message\ManagerInterface;

class StatusChange implements ObserverInterface
{
     /**
     * @var ObjectManagerInterface
     */
    protected $_objectManager;
    protected $messageManager;

    /**
     * @param \Magento\Framework\ObjectManagerInterface $objectManager
     */
    public function __construct(
        \Magento\Framework\ObjectManagerInterface $objectManager,
        \Magento\Quote\Model\QuoteFactory $quoteFactory,
        \Magento\Sales\Model\Order $order,
        ManagerInterface $messageManager
    )
    {
        $this->_objectManager = $objectManager;
        $this->messageManager = $messageManager;

    }


    public function execute(Observer $observer)
    {
        $order = $observer->getEvent()->getOrder();
        
        if ($order instanceof \Magento\Framework\Model\AbstractModel) {
            if($order->getState() == 'processing') {
                Your code...
            } 
        }

    }
}

Probably most things on Observer/StatusChange.php are not needed but for now it is like this and runs when order it's saved, hope helps someone with problems creating this.

Thanks