Add UniqueCollection constraint and validator
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31
src/Symfony/Component/Validator/Constraints/Unique.php
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31
src/Symfony/Component/Validator/Constraints/Unique.php
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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\Validator\Constraints;
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use Symfony\Component\Validator\Constraint;
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/**
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* @Annotation
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* @Target({"PROPERTY", "METHOD", "ANNOTATION"})
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*
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* @author Yevgeniy Zholkevskiy <zhenya.zholkevskiy@gmail.com>
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*/
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class Unique extends Constraint
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{
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const IS_NOT_UNIQUE = '7911c98d-b845-4da0-94b7-a8dac36bc55a';
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protected static $errorNames = array(
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self::IS_NOT_UNIQUE => 'IS_NOT_UNIQUE',
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);
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public $message = 'This collection should contain only unique elements';
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}
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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\Validator\Constraints;
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use Symfony\Component\Validator\Constraint;
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use Symfony\Component\Validator\ConstraintValidator;
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use Symfony\Component\Validator\Exception\UnexpectedTypeException;
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/**
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* @author Yevgeniy Zholkevskiy <zhenya.zholkevskiy@gmail.com>
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*/
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class UniqueValidator extends ConstraintValidator
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{
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/**
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* {@inheritdoc}
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*/
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public function validate($value, Constraint $constraint)
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{
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if (!$constraint instanceof Unique) {
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throw new UnexpectedTypeException($constraint, Unique::class);
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}
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if (null === $value) {
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return;
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}
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if (!is_array($value) && !$value instanceof \IteratorAggregate) {
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throw new UnexpectedTypeException($value, 'IteratorAggregate');
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}
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$collectionElements = array();
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foreach ($value as $element) {
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if (in_array($element, $collectionElements, true)) {
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$this->context->buildViolation($constraint->message)
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->setParameter('{{ value }}', $this->formatValue($value))
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->setCode(Unique::IS_NOT_UNIQUE)
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->addViolation();
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return;
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}
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$collectionElements[] = $element;
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}
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}
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}
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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\Validator\Tests\Constraints;
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use Symfony\Component\Validator\Constraints\Unique;
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use Symfony\Component\Validator\Constraints\UniqueValidator;
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use Symfony\Component\Validator\Test\ConstraintValidatorTestCase;
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class UniqueValidatorTest extends ConstraintValidatorTestCase
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{
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protected function createValidator()
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{
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return new UniqueValidator();
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}
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/**
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* @expectedException \Symfony\Component\Validator\Exception\UnexpectedTypeException
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*/
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public function testExpectsUniqueConstraintCompatibleType()
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{
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$this->validator->validate('', new Unique());
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}
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/**
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* @dataProvider getValidValues
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*/
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public function testValidValues($value)
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{
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$this->validator->validate($value, new Unique());
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$this->assertNoViolation();
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}
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public function getValidValues()
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{
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return array(
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yield 'null' => array(array(null)),
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yield 'empty array' => array(array()),
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yield 'single integer' => array(array(5)),
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yield 'single string' => array(array('a')),
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yield 'single object' => array(array(new \stdClass())),
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yield 'unique booleans' => array(array(true, false)),
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yield 'unique integers' => array(array(1, 2, 3, 4, 5, 6)),
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yield 'unique floats' => array(array(0.1, 0.2, 0.3)),
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yield 'unique strings' => array(array('a', 'b', 'c')),
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yield 'unique arrays' => array(array(array(1, 2), array(2, 4), array(4, 6))),
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yield 'unique objects' => array(array(new \stdClass(), new \stdClass())),
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);
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}
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/**
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* @dataProvider getInvalidValues
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*/
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public function testInvalidValues($value)
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{
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$constraint = new Unique(array(
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'message' => 'myMessage',
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));
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$this->validator->validate($value, $constraint);
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$this->buildViolation('myMessage')
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->setParameter('{{ value }}', 'array')
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->setCode(Unique::IS_NOT_UNIQUE)
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->assertRaised();
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}
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public function getInvalidValues()
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{
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$object = new \stdClass();
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return array(
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yield 'not unique booleans' => array(array(true, true)),
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yield 'not unique integers' => array(array(1, 2, 3, 3)),
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yield 'not unique floats' => array(array(0.1, 0.2, 0.1)),
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yield 'not unique string' => array(array('a', 'b', 'a')),
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yield 'not unique arrays' => array(array(array(1, 1), array(2, 3), array(1, 1))),
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yield 'not unique objects' => array(array($object, $object)),
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);
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}
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}
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