Awesome Random Fixtures

Hey Denis,

Could you explain exactly what you renamed to what? Like name and new name... It's important to know so we could be able to help you. Most probably you renamed it bad, e.g. class name does not match file name, etc. Or probably you renamed the class, but still reference the old name somewhere.

Cheers!

If anyone's like me and going through this before it's finished and would like an example for the getRandomReference function, here you go:

protected function getRandomReference($class)
{
$all = $this->manager->getRepository($class)->findAll();
return $all[array_rand($all)];
}

The logic here is to generate fixtures for related entities separately. This is very time consuming and counter intuitive for me. For example, I generate invoices and those invoices have items. My goal is to generate invoices that are meaningful and consistent. With the solutions suggested here invoices could have no items at all. Also I have a related "Offer" entity with an expected billing amount. The invoice items' total amount should (at least almost) match with the offer amount in meaningful cases.

My point is:

It would be far easier for me to generate the fixtures this way:

$invoice = new Invoice();
$amount = 0;
// repeat
    $invoiceItem = new InvoiceItem();
    // ...
    $invoice->addItem($invoiceItem);
    $amount += $invoiceItem->getAmount();
// ...
$offer = new Offer();
$offer->setTotalAmount($amount);
// ...
$invoice->setOffer($offer);

But it feels a bit like this is against best practices. Or is this a false impression and my suggested solution is also reasonable?

<s>Second question: Why isgetRandomReference() implementing a "cache" ($referencesIndex)? Is a plain call to referenceRepository->getReference() expensive?</s>
Edited: This is not caching the references but their indices.

Hey Farry7,

Please, double check your migration. Looks like it's not perfect, it may work on the empty database, but because you have some data there - it fails. I'd recommend you to check that FK_2CE0D8114D5B19A3 constraint and see its related columns, there's some a problem with relations.

I hope this helps!

Cheers!

All of this is outdated now in Symfony 5, I guess? Because I was using AppFixtures and Factory in another tutorial.

Heya @weaverryan yo a question, the variable $count in createmany is usable to print the current position in the loop?

another question, how about I want to have a value in the database called "number" that has nothing to do with ID, so I want each new insert, to be equal to "last record inserted +1", for example.

a Web Novel has a title, a description an image, and it has chapter, so I have a novel entity and a chapter entity.
the chapter entity has a field called "number" for "Chapter Number" related to that specific "novel"

how do I go around, checking that "the current chapter inserted belongs to XX novel, so I want to get the last inserted "number" value, related to the XX novel, and then set this NEW insert to "latest chapter number for novel XX + 1"

dont know if im explaining myself properly.

Hi all !

I'm trying to use these tutorials, and adapt it to my own use.
So... I'm trying to have create datas for User.

When I load the fixtures, referring to my terminal, I have this:

purging database
loading App\DataFixtures\UserGroupFixtures
loading App\DataFixtures\UserFixtures

Which seems to be correct since I have 2 fixtures files:

<b> UserGroupFixtures </b>

`
<?php

namespace App\DataFixtures;

use App\Entity\UserGroup;
use Doctrine\Bundle\FixturesBundle\Fixture;
use Doctrine\Common\Persistence\ObjectManager;

/**

• Class UserGroupFixtures

• @package App\DataFixtures
  / class UserGroupFixtures extends Fixture { /*

  • @param ObjectManager $manager
    */
    public function load(ObjectManager $manager)
    {

    /** @var UserGroup $adminUserGroup */
    $adminUserGroup = new UserGroup();
    $adminUserGroup->setTitle('admin');

    $manager->persist($adminUserGroup);

    /** @var UserGroup $adminUserGroup */
    $userUserGroup = new UserGroup();
    $userUserGroup->setTitle('user');

    $manager->persist($userUserGroup);

    /** @var UserGroup $adminUserGroup */
    $viewerUserGroup = new UserGroup();
    $viewerUserGroup->setTitle('viewer');

    $manager->persist($viewerUserGroup);

    $manager->flush();
    }
    }

`

<b>UserFixtures</b>

`
<?php

namespace App\DataFixtures;

use App\Entity\User;
use App\Entity\UserGroup;
use Doctrine\Common\DataFixtures\DependentFixtureInterface;
use Doctrine\Common\Persistence\ObjectManager;
use Symfony\Component\Security\Core\Encoder\UserPasswordEncoderInterface;

class UserFixtures extends BaseFixture implements DependentFixtureInterface
{

/**
 * @var array
 */
private static $userRoles = [
    ["ROLE_ADMIN"],
    ["ROLE_USER"]
];

/**
 * @var array
 */
private static $userInsertion = [
    'van',
    'de',
    ''
];

private $passwordEncoder;

/**
 * UserFixtures constructor.
 * @param UserPasswordEncoderInterface $passwordEncoder
 */
public function __construct(UserPasswordEncoderInterface $passwordEncoder)
{
    $this->passwordEncoder = $passwordEncoder;
}

/**
 * @param ObjectManager $manager
 */
protected function loadData(ObjectManager $manager)
{
    $this->createMany(User::class, 10, function(User $user) use ($manager) {

        $user->setUsername($this->faker->userName);
        $user->setRoles($this->faker->randomElement(self::$userRoles));
        $user->setPassword($this->passwordEncoder->encodePassword($user, 'ACTIVO'));
        $user->setFirstname($this->faker->firstName);
        $user->setLastname($this->faker->lastName);
        $user->setInsertion($this->faker->randomElement(self::$userInsertion));
        $user->setEmail($this->faker->email);
        $user->setDateCreated($this->faker->dateTime);
        $user->setDateUpdate($this->faker->dateTime);
        $user->setUnsubscribed($this->faker->boolean(15));
        $user->setDateUnsubscribed($this->faker->dateTime);

        $user->setUserGroup($this->getRandomReference(UserGroup::class));
    });

    $manager->flush();
}

/**
 * @return array|string
 */
public function getDependencies()
{
    return [UserGroupFixtures::class,];
}

}
`

But still.... I have this error:

<b>Cannot find any references for class "App\Entity\UserGroup"</b>

Is there anybody having an idea ?
Thanks for your help

` public function getDependencies()

{
    return [ArticleFixture::class];
}`

in the end code. ArticleFixture<b>s</b>?

Hi! Looks like the getRandomReference() function only works on ManyToOne relations... I'm using a OneToOne relation and the $this->faker->randomElement() makes the command doctrine:fixtures:load throw this error: SQLSTATE[23000]: Integrity constraint violation: 1062 Duplicate entry '61' <br /> for key 'UNIQ_4B6C0887A76ED395'
How can I adapt it to work for any relation type?

Hi! Unfortunaly I can't find the tutorial when you have started to use Fixtures, so I have copied the BaseFixture and create a UserFixture like you have done. Yet when I try to run the command load fixtures I get this error:
In BaseFixture.php line 12:

Attempted to load class "Factory" from namespace "Faker".
Did you forget a "use" statement for "Doctrine\Migrations\
Version\Factory"?

Can you help me?

hey there

This is super weird =) But I have probably a solution for you

1. save all your modified files
2. download course code
3. restore your files
4. run composer install (!!!not update needed)
5. If issue still will be here, than it will be perfect if you share all your project files via github

Cheers!

hey there

It's a little weird, but I tried your code locally and everything works as expected, Could you please share your php -v output?

Cheers!

Hmm, now I'm getting this error on fixtures load after switching over to the dependencies code near the end.

PHP Fatal error: Class App\DataFixtures\PostFixtures contains 1 abstract method and must therefore be declared abstract or implement the remaining methods (Doctrine\Common\DataFixtures\DependentFixtureInterface::getDependencies) in /var/www/dev/svfx/src/DataFixtures/PostFixtures.php on line 51

Hey guys,

when i implement the getDependencies() function and return [ArticleFixture::class] i get this error in my console:

In Loader.php line 321:

Fixture "App\DataFixtures\ArticleFixture" was declared as a dependency, but it should be added in fixture loader fi
rst.

Adding to that IntelliJ also tells me that ArticleFixture is a undefined class

Why I can't see my "AuthorsName" ?
If load DATA from "BaseFixture" it's work (prev. course)

createMany(Comment::class, 7, function(Comment $comment) {
$comment->setStatus(1);
// $comment->setAuthor($this->faker->AuthorsName);

Hi.. I am getting this in th console when i use in my fixture the when i use the

getRandomReference(Article::calss). (edit: Woooorks!!)

Booooooo!!!!!
-------------------------------------------------------------------------------
In ReferenceRepository.php line 167: Warning:

Illegal offset type in isset or empty

--------------------------------------------------------------------------------
using the getReference(Article::class . '_' . $this->faker->numberBetween(0, 9) Woooorks!!

I'm on symfony 4.1.2. upgraded today...
because I had a Deprecation Log Message in the Profiler:
----------------------------------------------------------------------------------------
User Deprecated: Doctrine\Common\ClassLoader is deprecated.
----------------------------------------------------------------------------------------

Am I the only I see it???
What may I do wrong...?
_______________________________________________________________
edit:
I found what i did..
geReference( getRandomReference() )

-- NEVER do that --

Hi!!!

For me is confusing a method that sets and gets data. Wouldn't be clearer to have two methods?

1. protected function pushToReferencesIndex(string $className, $entity): void that would call to addReference and add the key to the reference index:

{
       $className.'_'.$i, $entity;
       $this->addReference($key);
       if (!isset($this->referencesIndex[$className])) {
            $this->referencesIndex[$className] = [];
       }
      $this->referencesIndex[$className][] = $key;
}

1. protected function getRandomReference(string $className): object that would only have this lines:

{

    if (empty($this->referencesIndex[$className])) {
        throw new \Exception(sprintf('Cannot find any references for class "%s"', $className));
    }
    $randomReferenceKey = $this->faker->randomElement($this->referencesIndex[$className]);
    return $this->getReference($randomReferenceKey);

}

Or maybe just leave things equal and not do some over-engineering?