Using doctrine in Symfony2 command - symfony

Question

I have a command connecting to an external database and loading the data into my application's database. The command will run periodically as a cron job. However, I run into the following problem when I run the command in the console:
PHP Fatal error: Call to undefined method Symfony\Component\Console\Application::getKernel() in E:\www\project\vendor\symfony\symfony\src\Symfony\Bundle\FrameworkBundle\Command\ContainerAwareCommand.php on line 43
I followed the tutorial here on symfony's website to the letter.
Here's the service definition:
app.command.get_transactions:
class: AppBundle\Command\TransactionsCommand
arguments: [ #doctrine.orm.entity_manager ]
tags:
- { name: console.command }
Here's my command code:
<?php
namespace AppBundle\Command;
use Symfony\Bundle\FrameworkBundle\Command\ContainerAwareCommand;
use Symfony\Component\Console\Input\InputArgument;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Input\InputOption;
use Symfony\Component\Console\Output\OutputInterface;
use AppBundle\Entity\Transaction;
use AppBundle\Entity\TransactionSync;
use Doctrine\DBAL\DriverManager;
class TransactionsCommand extends ContainerAwareCommand
{
protected function configure()
{
$this
->setName('transactions:get')
->setDescription('Import transactions')
;
}
protected function execute(InputInterface $input, OutputInterface $output)
{
$em = $this->getContainer()->get('doctrine')->getManager();
$q = $em->createQueryBuilder();
$q->select('t')->from('AppBundle:TransactionSync', 't')->orderBy('t.id', 'DESC')->setMaxResults(1);
$sync = $q->getQuery()->getResult();
$em1 = $this->getContainer()->get('doctrine')->getManager('rnr');
$conn = $em1->getConnection();
$query = "SELECT id, merchant, client, phone, traderTransIdent AS member_id, transaction_id, transaction_type_id, value AS amount, points, DATE_FORMAT(STR_TO_DATE( transaction_date, '%d-%m-%Y' ), '%Y-%m-%d') AS transaction_date FROM merchant_transactions WHERE id > ". $sync->getId();
$stmt = $conn->prepare($query);
$stmt->execute();
$results = $stmt->fetchAll();
if(count($results) > 1)
{
$ts = new TransactionSync();
$ts->setStartTime(new \DateTime());
$id = 0;
foreach($results as $result)
{
$transaction_type = $em->getRepository('AppBundle:TransactionType')->find($result['transaction_type_id']);
$member = $em->getRepository('AppBundle:Member')->find($result['member_id']);
$transaction = new Transaction();
$transaction->setAmount($result['amount']);
$transaction->setPoints($result['points']);
$transaction->setClient($result['client']);
$transaction->setPhone($result['phone']);
$transaction->setTransactionId($result['transaction_id']);
$transaction->setTransactionDate(new \DateTime($result['transaction_date']));
$transaction->setTransactionType($transaction_type);
$transaction->setMember($member);
$em->persist($transaction);
$id = $result['id'];
}
$ts->setLastId($id);
$ts->setRecords(count($results));
$ts->setEndTime(new \DateTime());
$em->persist($ts);
$em->flush();
}
$output->writeln($text);
}
}
According to the accepted answer here and many other places online I have seen, extending ContainerAwareCommand should solve this but I still keep getting the error. Please assist in pointing the step I missed, I'll be very grateful

Answer 1

Remove your service definition, as you put your command inside Command folder and extended ContainerAwareCommand you don't need to use any tags and inject entity manager.

Answer 2

ContainerAware has been deprecated in 4.2. It's saying now:
The ContainerAwareCommand class has been deprecated. It was used in
the past to create commands extending from it so they had direct
access to the app service container. The alternative is to extend
commands from the Command class and use proper service injection in
the command constructor.
https://symfony.com/blog/new-in-symfony-4-2-important-deprecations