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Cannot use object of type App\Entity\Discussion\Comment as array #2943

@aroberts91

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@aroberts91

Package

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$ composer show --latest gedmo/doctrine-extensions
name     : gedmo/doctrine-extensions
descrip. : Doctrine behavioral extensions
keywords : Blameable, behaviors, doctrine, extensions, gedmo, loggable, nestedset, odm, orm, sluggable, sortable, timestampable, translatable, tree, uploadable
versions : * v3.20.0
released : 2025-04-04, 1 month ago
latest   : v3.20.0 released 2025-04-04, 1 month ago
type     : library
license  : MIT License (MIT) (OSI approved) https://spdx.org/licenses/MIT.html#licenseText
homepage : http://gediminasm.org/
source   : [git] https://github.com/doctrine-extensions/DoctrineExtensions.git ea1d37586b8e4bae2a815feb38b177894b12c44c
dist     : [zip] https://api.github.com/repos/doctrine-extensions/DoctrineExtensions/zipball/ea1d37586b8e4bae2a815feb38b177894b12c44c ea1d37586b8e4bae2a815feb38b177894b12c44c
path     : /var/www/app/vendor/gedmo/doctrine-extensions
names    : gedmo/doctrine-extensions

support
docs : https://github.com/doctrine-extensions/DoctrineExtensions/tree/main/doc
issues : https://github.com/doctrine-extensions/DoctrineExtensions/issues
source : https://github.com/doctrine-extensions/DoctrineExtensions/tree/v3.20.0

autoload
psr-4
Gedmo\ => src/

requires
behat/transliterator ^1.2
doctrine/collections ^1.2 || ^2.0
doctrine/deprecations ^1.0
doctrine/event-manager ^1.2 || ^2.0
doctrine/persistence ^2.2 || ^3.0 || ^4.0
php ^7.4 || ^8.0
psr/cache ^1 || ^2 || ^3
psr/clock ^1
symfony/cache ^5.4 || ^6.0 || ^7.0

requires (dev)
doctrine/annotations ^1.13 || ^2.0
doctrine/cache ^1.11 || ^2.0
doctrine/common ^2.13 || ^3.0
doctrine/dbal ^3.7 || ^4.0
doctrine/doctrine-bundle ^2.3
doctrine/mongodb-odm ^2.3
doctrine/orm ^2.20 || ^3.3
friendsofphp/php-cs-fixer ^3.70
nesbot/carbon ^2.71 || ^3.0
phpstan/phpstan ^2.1.1
phpstan/phpstan-doctrine ^2.0.1
phpstan/phpstan-phpunit ^2.0.3
phpunit/phpunit ^9.6
rector/rector ^2.0.6
symfony/console ^5.4 || ^6.0 || ^7.0
symfony/doctrine-bridge ^5.4 || ^6.0 || ^7.0
symfony/phpunit-bridge ^6.0 || ^7.0
symfony/uid ^5.4 || ^6.0 || ^7.0
symfony/yaml ^5.4 || ^6.0 || ^7.0

suggests
doctrine/mongodb-odm to use the extensions with the MongoDB ODM
doctrine/orm to use the extensions with the ORM

conflicts
doctrine/annotations <1.13 || >=3.0
doctrine/common <2.13 || >=4.0
doctrine/dbal <3.7 || >=5.0
doctrine/mongodb-odm <2.3 || >=3.0
doctrine/orm <2.20 || >=3.0 <3.3 || >=4.0

Doctrine packages

show

$ composer show --latest 'doctrine/*'
Direct dependencies required in composer.json:
doctrine/dbal                       3.9.4  4.2.3  Powerful PHP database abstraction layer (DBAL) with many features for database schema introspection and management.
doctrine/doctrine-bundle            2.14.0 2.14.0 Symfony DoctrineBundle
doctrine/doctrine-migrations-bundle 3.4.2  3.4.2  Symfony DoctrineMigrationsBundle
doctrine/orm                        3.3.3  3.3.3  Object-Relational-Mapper for PHP

Transitive dependencies not required in composer.json:
doctrine/cache                      2.2.0  2.2.0  PHP Doctrine Cache library is a popular cache implementation that supports many different drivers such as redis, memcache, apc, mongodb and others.
doctrine/collections                2.3.0  2.3.0  PHP Doctrine Collections library that adds additional functionality on top of PHP arrays.
doctrine/deprecations               1.1.5  1.1.5  A small layer on top of trigger_error(E_USER_DEPRECATED) or PSR-3 logging with options to disable all deprecations or selectively for packages.
doctrine/event-manager              2.0.1  2.0.1  The Doctrine Event Manager is a simple PHP event system that was built to be used with the various Doctrine projects.
doctrine/inflector                  2.0.10 2.0.10 PHP Doctrine Inflector is a small library that can perform string manipulations with regard to upper/lowercase and singular/plural forms of words.
doctrine/instantiator               2.0.0  2.0.0  A small, lightweight utility to instantiate objects in PHP without invoking their constructors
doctrine/lexer                      3.0.1  3.0.1  PHP Doctrine Lexer parser library that can be used in Top-Down, Recursive Descent Parsers.
doctrine/migrations                 3.9.0  3.9.0  PHP Doctrine Migrations project offer additional functionality on top of the database abstraction layer (DBAL) for versioning your database schema and easily deploying changes to it. It is a v... 
doctrine/persistence                4.0.0  4.0.0  The Doctrine Persistence project is a set of shared interfaces and functionality that the different Doctrine object mappers share.
doctrine/sql-formatter              1.5.2  1.5.2  a PHP SQL highlighting library

PHP version

8.3.13

I've created an entity with a closure table and a repository alongside. I'm trying a basic example of building a tree but am seeing the error Cannot use object of type App\Entity\Discussion\Comment as array when calling getCommentTreeForDiscussion

Entity:

#[Gedmo\Tree(type: 'closure')]
#[Gedmo\TreeClosure(class: CommentClosure::class)]
#[ORM\Entity(repositoryClass: CommentRepository::class)]
#[ORM\HasLifecycleCallbacks]
class Comment implements Identifiable
{
    use IdentifiableEntity;
    use TimestampableEntity;

    #[ORM\Column(type: 'text')]
    private string $content;

    #[ORM\ManyToOne(targetEntity: User::class)]
    #[ORM\JoinColumn(nullable: false)]
    private User $author;

    #[ORM\ManyToOne(targetEntity: Discussion::class, inversedBy: 'comments')]
    #[ORM\JoinColumn(nullable: false)]
    private Discussion $discussion;

    #[Gedmo\TreeParent]
    #[ORM\ManyToOne(targetEntity: self::class, inversedBy: 'replies')]
    #[ORM\JoinColumn(referencedColumnName: 'id', nullable: true, onDelete: 'CASCADE')]
    private ?Comment $parent = null;

    #[ORM\OneToMany(targetEntity: self::class, mappedBy: 'parent', cascade: ['persist', 'remove'])]
    private Collection $replies;

    #[Gedmo\TreeLevel]
    #[ORM\Column(type: 'integer')]
    private int $level = 0;

    #[ORM\ManyToMany(targetEntity: User::class)]
    #[ORM\JoinTable(name: 'comment_likes')]
    private Collection $likedBy;

    // --- Getters / Setters

Closure:

#[ORM\Entity]
class CommentClosure extends AbstractClosure
{
    #[ORM\ManyToOne(targetEntity: Comment::class)]
    #[ORM\JoinColumn(name: 'ancestor', referencedColumnName: 'id', nullable: false, onDelete: 'CASCADE')]
    protected $ancestor;

    #[ORM\ManyToOne(targetEntity: Comment::class)]
    #[ORM\JoinColumn(name: 'descendant', referencedColumnName: 'id', nullable: false, onDelete: 'CASCADE')]
    protected $descendant;
}

Repository:

class CommentRepository extends ClosureTreeRepository
{
    public function __construct(EntityManagerInterface $manager)
    {
        parent::__construct($manager, $manager->getClassMetadata(Comment::class));
    }

    public function getCommentTreeForDiscussion(Discussion $discussion): array
    {
        $roots = $this->findBy(['discussion' => $discussion, 'parent' => null], ['createdAt' => 'ASC']);

        return $this->buildTree($roots);
    }
}

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    BugA confirmed bug in Extensions that needs fixing.Tree

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