Part-DB-server/src/Validator/Constraints/AssemblySystem/UniqueReferencedAssemblyValidator.php

<?php

declare(strict_types=1);

/*
 * This file is part of Part-DB (https://github.com/Part-DB/Part-DB-symfony).
 *
 *  Copyright (C) 2019 - 2023 Jan Böhmer (https://github.com/jbtronics)
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU Affero General Public License as published
 *  by the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU Affero General Public License for more details.
 *
 *  You should have received a copy of the GNU Affero General Public License
 *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
namespace App\Validator\Constraints\AssemblySystem;

use Symfony\Component\Validator\Constraint;
use Symfony\Component\Validator\ConstraintValidator;

class UniqueReferencedAssemblyValidator extends ConstraintValidator
{
    public function validate($value, Constraint $constraint)
    {
        $assemblies = [];
        foreach ($value as $entry) {
            $referencedAssemblyId = $entry->getReferencedAssembly()?->getId();
            if ($referencedAssemblyId === null) {
                continue;
            }

            if (isset($assemblies[$referencedAssemblyId])) {
                $this->context->buildViolation($constraint->message)
                    ->atPath('referencedAssembly')
                    ->addViolation();
                return;
            }
            $assemblies[$referencedAssemblyId] = true;
        }
    }
}