Nested CollectionType Form

Example of nested collection forms

class TemplateType extends AbstractType

    public function buildForm(FormBuilderInterface $builder, array $options): void

            ->add('name', TextType::class, [
                'label' => "Template Name",
                'required' => true,
                'attr' => [
                    'class' => 'form-control',
            ->add('sentences', CollectionType::class, [
                'entry_type' => SentenceType::class,
                'entry_options' => ['label' => false],
                'label' => false,
                'allow_add' => true,
                'allow_delete' => true,
                'delete_empty' => true,
                'by_reference' => false,
                'prototype' => true,
                'prototype_name' => '__sentence__',
            ->add('submit', SubmitType::class, [
                'label' => 'Update',
                'attr' => [
                    'class' => "btn btn-sm btn-primary"


    public function configureOptions(OptionsResolver $resolver): void
            'data_class' => Template::class,
            'csrf_protection' => false,

Continue reading “Nested CollectionType Form”

Get all duplicate records in table

Slow variant:

FROM table t1
WHERE t1.domain_id = 1569
AND t1.is_active = 1
AND (t1.field IN (SELECT t2.field
				 FROM table t2
				 WHERE t2.is_active = 1
				 GROUP BY t2.field
				 HAVING COUNT(t2.field) > 1))

Faster variant:

SELECT l0_.*
FROM table l0_
inner join table n2 on n2.field = l0_.field
where <>
AND l0_.is_active = 1
Group By


	->innerJoin(Table::class,'table', Query\Expr\Join::WITH, 'entity.field = table.field')
	->andWhere(' <>')
	->andWhere('table.isActive = 1')

Nested Queries with Query Builder

$queryBuilder = $this->createQueryBuilder('account_event');
            ->select(' AS AE_id', 'IDENTITY(account_event.event) AS event_id', 'account_event.dueDate as due_date', 'IDENTITY(account_event.account) AS account_id')
                        ->andWhere('ae2.event IN (:events)')
                        ->andWhere('ae2.account IN (:accounts)')
                        ->andWhere('ae2.dueDate > DATE(:date)')
            ->setParameter('events', $events)
            ->setParameter('accounts', $accounts)
            ->setParameter('date', $date->format('Y-m-d'))

Fast Setup Virtual Machine and Symfony

sudo dpkg --configure -a
sudo apt-get install mysql-server
apt-cache pkgnames | grep php7.3
php -r "copy('', 'composer-setup.php');"
php -r "if (hash_file('sha384', 'composer-setup.php') === 'a5c698ffe4b8e849a443b120cd5ba38043260d5c4023dbf93e1558871f1f07f58274fc6f4c93bcfd858c6bd0775cd8d1') { echo 'Installer verified'; } else { echo 'Installer corrupt'; unlink('composer-setup.php'); } echo PHP_EOL;"
php composer-setup.php
php -r "unlink('composer-setup.php');"
sudo mv composer.phar /usr/local/bin/composer

# run this if you are building a traditional web application

composer create-project symfony/skeleton ./ 

# run this if you are building a microservice, console application or API

composer create-project symfony/website-skeleton ./

Current folder should be empty!!!

Continue reading “Fast Setup Virtual Machine and Symfony”

RabbitMQ Work Queue with Symfony

Add to .env


Add to services.yaml

        arguments: ['%env(RABBITMQ_HOST)%', '%env(RABBITMQ_PORT)%', '%env(RABBITMQ_USERNAME)%', '%env(RABBITMQ_PASSWORD)%', '%env(RABBITMQ_QUEUE_NAME)%']

            arguments: ['%env(RABBITMQ_HOST)%', '%env(RABBITMQ_PORT)%', '%env(RABBITMQ_USERNAME)%', '%env(RABBITMQ_PASSWORD)%', '%env(RABBITMQ_QUEUE_NAME)%']

Continue reading “RabbitMQ Work Queue with Symfony”

Setting up RabbitMQ

First, we need to use composer to install RabbitMQ Server and the PHP package for interfacing with RabbitMQ.

composer require php-amqplib/php-amqplib

sudo apt-key adv --keyserver "" --recv-keys "0x6B73A36E6026DFCA"
wget -O - "" | sudo apt-key add -
sudo apt-get install apt-transport-https
sudo apt-get update -y
sudo apt-get install -y erlang
sudo apt-get update
sudo apt-cache policy
sudo apt-get install -y rabbitmq-server

Create user for rabbitMQ and set permissions
only root can create user

sudo su root 
rabbitmqctl add_user test test
rabbitmqctl set_user_tags test administrator
rabbitmqctl set_permissions -p / test ".*" ".*" ".*"

rabbitmq-plugins enable rabbitmq_management

You can now reach RabbitMQ interface at http://localhost:15672

Symfony – Create a service – the right way

Always create service interface for your service. This way you will have better structured code and phpunit testing will be real pleasure.
Also use dependency injection for your repositories in the service.

Service Interface Example

interface UserServiceInterface{
  public function getUsername();
  public function viewAll();

Service Example

class UserService implements UserServiceInterface

  private $entityManager;
  private $userRepository;

  public function __construct(EntityManager $entityManager, UserRepository $userRepository)
    $this->entityManager = $entityManager;
    $this->userRepository = $userRepository;

  public function viewAll()
    return $this->userRepository->findAll();

Repository Example

class UserRepository extends \Doctrine\ORM\EntityRepository
  public function __construct(EntityManager $em, Mapping\ClassMetadata $metadata = null)
      $metadata == null ?
      new Mapping\ClassMetadata(User::class) :