Sample Doctrine Fixture to default load users in database!

1-LoadWorkspaces.php

<?php

namespace AppBundle\DataFixtures\ORM;

use Doctrine\Common\Persistence\ObjectManager;
use Doctrine\Common\DataFixtures\AbstractFixture;
use Doctrine\Common\DataFixtures\OrderedFixtureInterface;
use AppBundle\Entity\Workspace;

/**
 * LoadWorkspaces Fixture
 * 
 * To load users just execute this command: bin/console doctrine:fixtures:load
 * By default the load command purges the database, removing all data from every table. 
 * To append your fixtures' data specify the --append option.
 *
 * DoctrineFixturesBundle should be installed beforehand..
 */
class LoadWorkspaces extends AbstractFixture implements OrderedFixtureInterface
{
    public function load(ObjectManager $manager)
    {
        $workspace1 = new Workspace();
        $workspace1->setName('Writing');
        $workspace1->setDescription('info for writing Workspace');

        $manager->persist($workspace1);
        $manager->flush();

        $this->addReference('workspace-writing', $workspace1);
    }

    public function getOrder()
    {
        return 10; // the order in which fixtures will be loaded
    }
}

2-LoadProjects.php

<?php

namespace AppBundle\DataFixtures\ORM;

use Doctrine\Common\Persistence\ObjectManager;
use Doctrine\Common\DataFixtures\AbstractFixture;
use Doctrine\Common\DataFixtures\OrderedFixtureInterface;
use AppBundle\Entity\Project;

class LoadProjects extends AbstractFixture implements OrderedFixtureInterface
{
    public function load(ObjectManager $manager)
    {
        $project1 = new Project();
        $project1->setTitle('Symfony book');
        $project1->setDescription('Some descriptions for Symfony book project');
        $project1->setDueDate(new \DateTime('2014-10-20'));
        $project1->setWorkspace($manager->merge($this->getReference('workspace-writing')));

        $manager->persist($project1);
        $manager->flush();

        $this->addReference('project-symfony', $project1);
    }

    public function getOrder()
    {
        return 20; // the order in which fixtures will be loaded
    }
}

3-LoadTasks.php

<?php

namespace AppBundle\DataFixtures\ORM;

use Doctrine\Common\Persistence\ObjectManager;
use Doctrine\Common\DataFixtures\AbstractFixture;
use Doctrine\Common\DataFixtures\OrderedFixtureInterface;
use AppBundle\Entity\Task;

class LoadTasks extends AbstractFixture implements OrderedFixtureInterface
{
    public function load(ObjectManager $manager)
    {
        $task1 = new Task();
        $task1->setTitle('writing chapter 1');
        $task1->setDescription('descriptions for writing ch1');
        $task1->setDueDate(new \DateTime('2014-10-14'));
        $task1->setProject($manager->merge($this->getReference('project-symfony')));
        $task1->setUser($manager->merge($this->getReference('user-muzafar')));

        $task2 = new Task();
        $task2->setTitle('reviewing chapter 1');
        $task2->setDescription('descriptions for reviewing ch1');
        $task2->setDueDate(new \DateTime('2014-10-16'));
        $task2->setProject($manager->merge($this->getReference('project-symfony')));
        $task2->setUser($manager->merge($this->getReference('user-javed')));

        $task3 = new Task();
        $task3->setTitle('editing chapter 1');
        $task3->setDescription('descriptions for editing ch1');
        $task3->setDueDate(new \DateTime('2014-10-18'));
        $task3->setProject($manager->merge($this->getReference('project-symfony')));
        $task3->setUser($manager->merge($this->getReference('user-javed')));

        $manager->persist($task1);
        $manager->persist($task2);
        $manager->persist($task3);
        $manager->flush();
    }

    public function getOrder()
    {
        return 40; // the order in which fixtures will be loaded
    }

}

4-LoadUsers.php

<?php

namespace AppBundle\DataFixtures\ORM;

use Doctrine\Common\Persistence\ObjectManager;
use Doctrine\Common\DataFixtures\AbstractFixture;
use Doctrine\Common\DataFixtures\OrderedFixtureInterface;
use AppBundle\Entity\User;

class LoadUsers extends AbstractFixture implements OrderedFixtureInterface
{
    public function load(ObjectManager $manager)
    {
        $user1 = new User();
        $user1->setName('Muzafar Ali');
        $user1->setBio('PHP Developer');
        $user1->setEmail('m.....@gmail.com');

        $user2 = new User();
        $user2->setName('Javed Ali');
        $user2->setBio('Accountant');
        $user2->setEmail('j.....@gmail.com');

        $manager->persist($user1);
        $manager->persist($user2);
        $manager->flush();

        $this->addReference('user-muzafar', $user1);
        $this->addReference('user-javed', $user2);
    }

    public function getOrder()
    {
        return 30; // the order in which fixtures will be loaded
    }

}