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libraries/vendor/symfony/validator/Constraints/Unique.php

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+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Validator\Constraints;
+
+use Symfony\Component\Validator\Constraint;
+use Symfony\Component\Validator\Exception\InvalidArgumentException;
+
+/**
+ * @Annotation
+ * @Target({"PROPERTY", "METHOD", "ANNOTATION"})
+ *
+ * @author Yevgeniy Zholkevskiy <zhenya.zholkevskiy@gmail.com>
+ */
+#[\Attribute(\Attribute::TARGET_PROPERTY | \Attribute::TARGET_METHOD | \Attribute::IS_REPEATABLE)]
+class Unique extends Constraint
+{
+    public const IS_NOT_UNIQUE = '7911c98d-b845-4da0-94b7-a8dac36bc55a';
+
+    public array|string $fields = [];
+
+    protected const ERROR_NAMES = [
+        self::IS_NOT_UNIQUE => 'IS_NOT_UNIQUE',
+    ];
+
+    /**
+     * @deprecated since Symfony 6.1, use const ERROR_NAMES instead
+     */
+    protected static $errorNames = self::ERROR_NAMES;
+
+    public $message = 'This collection should contain only unique elements.';
+    /** @var callable|null */
+    public $normalizer;
+
+    /**
+     * @param array|string $fields the combination of fields that must contain unique values or a set of options
+     */
+    public function __construct(
+        ?array $options = null,
+        ?string $message = null,
+        ?callable $normalizer = null,
+        ?array $groups = null,
+        mixed $payload = null,
+        array|string|null $fields = null,
+    ) {
+        parent::__construct($options, $groups, $payload);
+
+        $this->message = $message ?? $this->message;
+        $this->normalizer = $normalizer ?? $this->normalizer;
+        $this->fields = $fields ?? $this->fields;
+
+        if (null !== $this->normalizer && !\is_callable($this->normalizer)) {
+            throw new InvalidArgumentException(sprintf('The "normalizer" option must be a valid callable ("%s" given).', get_debug_type($this->normalizer)));
+        }
+    }
+}