order details in observer not working - magento 2

Question

I am trying to get order details in observer (event: checkout_submit_all_after). I am trying to print the order details in debug.log, but nothing printed.

Please refer this know about my complete module structure. I could change observer class functionality like below for getting order details.

app/code/Gworks/Sms/Observer/LogAddMessage.php

<?php
namespace Gworks\Sms\Observer;
use Magento\Framework\Event\ObserverInterface;
class LogAddMessage implements ObserverInterface
{
    protected $_logger;
    public function __construct(
    \Psr\Log\LoggerInterface $logger, //log injection
    array $data = []
    ) {
    $this->_logger = $logger;
       // parent::__construct($data);
    }

    public function execute(\Magento\Framework\Event\Observer $observer)
    {
       $this->_logger->addDebug('getplace oreder event occured successfully!');
    }

    public function getOrder(\Magento\Framework\Event\Observer $observer)
    {
    $order = $observer->getEvent()->getOrder();
    $order_id = $order->getIncrementId();
    $this->logger->addDebug($order_id);       
    }
}

debug.log

[2016-04-26 10:14:10] main.DEBUG: getplace oreder event occured successfully! {"is_exception":false} [] [2016-04-26 10:14:10] main.DEBUG: cache_invalidate: {"method":"POST","url":"http://magentodev.gworks.mobi/magento2/rest/default/V1/carts/mine/payment-information","invalidateInfo":{"tags":["catalog_category_2","catalog_category_26","catalog_category_30","catalog_category_34","catalog_category"],"mode":"matchingAnyTag"},"is_exception":false} []

when define order details in execute method it will throw the below error while place order

[2016-04-26 11:37:42] main.CRITICAL: exception 'Exception' with message 'Report ID: webapi-571f53065307a; Message: Notice: Array to string conversion in /var/www/html/magento2/vendor/monolog/monolog/src/Monolog/Logger.php on line 277' in /var/www/html/magento2/vendor/magento/framework/Webapi/ErrorProcessor.php:194
Stack trace:
#0 /var/www/html/magento2/vendor/magento/framework/Webapi/ErrorProcessor.php(139): Magento\Framework\Webapi\ErrorProcessor->_critical(Object(Exception))
#1 /var/www/html/magento2/vendor/magento/module-webapi/Controller/Rest.php(163): Magento\Framework\Webapi\ErrorProcessor->maskException(Object(Exception))
#2 /var/www/html/magento2/var/generation/Magento/Webapi/Controller/Rest/Interceptor.php(24): Magento\Webapi\Controller\Rest->dispatch(Object(Magento\Framework\App\Request\Http))
#3 /var/www/html/magento2/vendor/magento/framework/App/Http.php(115): Magento\Webapi\Controller\Rest\Interceptor->dispatch(Object(Magento\Framework\App\Request\Http))
#4 /var/www/html/magento2/vendor/magento/framework/App/Bootstrap.php(258): Magento\Framework\App\Http->launch()
#5 /var/www/html/magento2/index.php(39): Magento\Framework\App\Bootstrap->run(Object(Magento\Framework\App\Http))
#6 {main} [] []

complete module in Github

Thanks

Answer 1

Use $order = $observer->getEvent()->getOrder();

instead of $order = $observer->getOrder();

Also,you can use checkout_submit_all_after event

Answer 2

as per my understanding instead of using getOrder() (method), Use only one method execute()..

you can make as many as functions (methods) you want, but just use in the same class.. hope this will solve the problem

Answer 3

Use the sales_order_save_after instead of checkout_submit_all_after observer.

and create a events.xml file inside etc folder and write below code

<?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="save_order" instance="VendorName\ModuleName\Model\Observer\AfterPlaceOrderObserver" />
    </event>
</config>

create a AfterPlaceOrderObserver.php file inside Model/Observer/ folder and write the below code

    public function execute(\Magento\Framework\Event\Observer $observer)
    {

        /* @var $order \Magento\Sales\Model\Order */
            $order = $observer->getEvent()->getOrder();
            $order_data = $order->getData();

file_put_contents('order.txt', print_r("\n" . $order_data,true), FILE_APPEND);
    }

Answer 4

Its working finaly

app/code/Gworks/Sms/Observer/LogAddMessage.php

<?php
    namespace Gworks\Sms\Observer;
use Magento\Framework\Event\ObserverInterface;
class LogAddMessage implements ObserverInterface
{
    protected $_logger;
    protected $order;
    public function __construct(\Magento\Sales\Model\Order $order,
    \Psr\Log\LoggerInterface $logger, //log injection
    array $data = []
    ) {
    $this->_logger = $logger;
       // parent::__construct($data);
    }

    public function execute(\Magento\Framework\Event\Observer $observer)
    {
/* @var $order \Magento\Sales\Model\Order */
        $order = $observer->getEvent()->getOrder();
        $order_id = $order->getIncrementId();
        $this->_logger->info($order_id);
        $objectManager = \Magento\Framework\App\ObjectManager::getInstance();
        $order = $objectManager->get('Magento\Sales\Model\Order');
        $order_information = $order->loadByIncrementId($order_id);
        $this->_logger->info('Order Info', $order_information->getData());
    }

}

order details are printed in system.log

note: thanks to all for give supports :-)