This PR was merged into the 2.7 branch.
Discussion
----------
Fix #19943 Make sure to process each interface metadata only once
| Q | A
| ------------- | ---
| Branch? | 2.7+
| Bug fix? | yes
| New feature? | no
| BC breaks? | no
| Deprecations? | no
| Tests pass? | yes
| Fixed tickets | #19943
| License | MIT
| Doc PR | N/A
Here is the fix for #19943, If you have `InterfaceA <- InterfaceB <- Class` with a constraint on a method defined on `InterfaceA`, the constraint and its eventual violations are currently validated and reported twice.
Copy from https://github.com/symfony/symfony/issues/19943#issuecomment-250238529:
As far as I can see, the problem seems to arise in [`LazyLoadingMetadataFactory`](https://github.com/symfony/symfony/blob/master/src/Symfony/Component/Validator/Mapping/Factory/LazyLoadingMetadataFactory.php#L117-L123):
[`ReflectionClass::getInterfaces()`](http://php.net/manual/en/reflectionclass.getinterfaces.php) returns both interfaces implemented directly and through inheritance (either through another interface or through a parent class). In the end, the following process occurs:
1. `PriceInterface` is parsed and its `NotBlank` constraint on `value` is loaded
2. `VariablePriceInterface` is parsed and inherits `PriceInterface`'s constraints (which is OK).
3. `ProductPrice` is parsed and inherits both `PriceInterface` and `VariablePriceInterface`'s constraints, which leads to a duplicated `NotBlank` constraint, one from each Interface.
The Best Way ™️ would be to be able to extract the list of interfaces implemented by a class directly only. However, the process seems a bit intricate... I will start working on it and prepare a PR to that effect. However, if any of you has a better idea, I'm all hears...
TODO:
- [x] Regression tests to make sure the bug doesn't reappear
Commits
-------
2f9b65a
Fix #19943 Make sure to process each interface metadata only once
This commit is contained in:
commit
c1c42a52bc
@ -116,9 +116,27 @@ class LazyLoadingMetadataFactory implements MetadataFactoryInterface
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$metadata->mergeConstraints($this->getMetadataFor($parent->name));
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}
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// Include constraints from all implemented interfaces that have not been processed via parent class yet
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foreach ($metadata->getReflectionClass()->getInterfaces() as $interface) {
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if ('Symfony\Component\Validator\GroupSequenceProviderInterface' === $interface->name || ($parent && $parent->implementsInterface($interface->name))) {
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$interfaces = $metadata->getReflectionClass()->getInterfaces();
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$interfaces = array_filter($interfaces, function ($interface) use ($parent, $interfaces) {
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$interfaceName = $interface->getName();
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if ($parent && $parent->implementsInterface($interfaceName)) {
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return false;
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}
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foreach ($interfaces as $i) {
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if ($i !== $interface && $i->implementsInterface($interfaceName)) {
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return false;
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}
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}
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return true;
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});
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// Include constraints from all directly implemented interfaces
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foreach ($interfaces as $interface) {
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if ('Symfony\Component\Validator\GroupSequenceProviderInterface' === $interface->name) {
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continue;
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}
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$metadata->mergeConstraints($this->getMetadataFor($interface->name));
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@ -19,7 +19,7 @@ use Symfony\Component\Validator\ExecutionContextInterface;
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* @Assert\GroupSequence({"Foo", "Entity"})
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* @Assert\Callback({"Symfony\Component\Validator\Tests\Fixtures\CallbackClass", "callback"})
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*/
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class Entity extends EntityParent
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class Entity extends EntityParent implements EntityInterfaceB
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{
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/**
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* @Assert\NotNull
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@ -11,6 +11,6 @@
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namespace Symfony\Component\Validator\Tests\Fixtures;
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interface EntityInterface
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interface EntityInterfaceA
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{
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}
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@ -0,0 +1,16 @@
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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\Fixtures;
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interface EntityInterfaceB extends EntityParentInterface
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{
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}
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@ -13,7 +13,7 @@ namespace Symfony\Component\Validator\Tests\Fixtures;
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use Symfony\Component\Validator\Constraints\NotNull;
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class EntityParent implements EntityInterface
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class EntityParent implements EntityInterfaceA
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{
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protected $firstName;
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private $internal;
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@ -0,0 +1,16 @@
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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\Fixtures;
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interface EntityParentInterface
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{
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}
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@ -18,17 +18,19 @@ use Symfony\Component\Validator\Tests\Fixtures\ConstraintA;
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class LazyLoadingMetadataFactoryTest extends \PHPUnit_Framework_TestCase
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{
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const CLASSNAME = 'Symfony\Component\Validator\Tests\Fixtures\Entity';
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const PARENTCLASS = 'Symfony\Component\Validator\Tests\Fixtures\EntityParent';
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const INTERFACECLASS = 'Symfony\Component\Validator\Tests\Fixtures\EntityInterface';
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const CLASS_NAME = 'Symfony\Component\Validator\Tests\Fixtures\Entity';
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const PARENT_CLASS = 'Symfony\Component\Validator\Tests\Fixtures\EntityParent';
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const INTERFACE_A_CLASS = 'Symfony\Component\Validator\Tests\Fixtures\EntityInterfaceA';
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const INTERFACE_B_CLASS = 'Symfony\Component\Validator\Tests\Fixtures\EntityInterfaceB';
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const PARENT_INTERFACE_CLASS = 'Symfony\Component\Validator\Tests\Fixtures\EntityParentInterface';
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public function testLoadClassMetadataWithInterface()
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{
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$factory = new LazyLoadingMetadataFactory(new TestLoader());
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$metadata = $factory->getMetadataFor(self::PARENTCLASS);
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$metadata = $factory->getMetadataFor(self::PARENT_CLASS);
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$constraints = array(
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new ConstraintA(array('groups' => array('Default', 'EntityInterface', 'EntityParent'))),
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new ConstraintA(array('groups' => array('Default', 'EntityInterfaceA', 'EntityParent'))),
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new ConstraintA(array('groups' => array('Default', 'EntityParent'))),
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);
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@ -38,12 +40,12 @@ class LazyLoadingMetadataFactoryTest extends \PHPUnit_Framework_TestCase
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public function testMergeParentConstraints()
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{
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$factory = new LazyLoadingMetadataFactory(new TestLoader());
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$metadata = $factory->getMetadataFor(self::CLASSNAME);
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$metadata = $factory->getMetadataFor(self::CLASS_NAME);
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$constraints = array(
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new ConstraintA(array('groups' => array(
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'Default',
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'EntityInterface',
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'EntityInterfaceA',
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'EntityParent',
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'Entity',
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))),
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@ -52,6 +54,17 @@ class LazyLoadingMetadataFactoryTest extends \PHPUnit_Framework_TestCase
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'EntityParent',
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'Entity',
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))),
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new ConstraintA(array('groups' => array(
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'Default',
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'EntityParentInterface',
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'EntityInterfaceB',
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'Entity',
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))),
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new ConstraintA(array('groups' => array(
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'Default',
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'EntityInterfaceB',
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'Entity',
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))),
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new ConstraintA(array('groups' => array(
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'Default',
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'Entity',
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@ -67,34 +80,36 @@ class LazyLoadingMetadataFactoryTest extends \PHPUnit_Framework_TestCase
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$factory = new LazyLoadingMetadataFactory(new TestLoader(), $cache);
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$parentClassConstraints = array(
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new ConstraintA(array('groups' => array('Default', 'EntityInterface', 'EntityParent'))),
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new ConstraintA(array('groups' => array('Default', 'EntityInterfaceA', 'EntityParent'))),
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new ConstraintA(array('groups' => array('Default', 'EntityParent'))),
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);
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$interfaceConstraints = array(new ConstraintA(array('groups' => array('Default', 'EntityInterface'))));
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$interfaceAConstraints = array(
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new ConstraintA(array('groups' => array('Default', 'EntityInterfaceA'))),
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);
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$cache->expects($this->never())
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->method('has');
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$cache->expects($this->exactly(2))
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->method('read')
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->withConsecutive(
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array($this->equalTo(self::PARENTCLASS)),
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array($this->equalTo(self::INTERFACECLASS))
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array($this->equalTo(self::PARENT_CLASS)),
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array($this->equalTo(self::INTERFACE_A_CLASS))
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)
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->will($this->returnValue(false));
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$cache->expects($this->exactly(2))
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->method('write')
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->withConsecutive(
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$this->callback(function ($metadata) use ($interfaceConstraints) {
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return $interfaceConstraints == $metadata->getConstraints();
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$this->callback(function ($metadata) use ($interfaceAConstraints) {
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return $interfaceAConstraints == $metadata->getConstraints();
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}),
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$this->callback(function ($metadata) use ($parentClassConstraints) {
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return $parentClassConstraints == $metadata->getConstraints();
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})
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);
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$metadata = $factory->getMetadataFor(self::PARENTCLASS);
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$metadata = $factory->getMetadataFor(self::PARENT_CLASS);
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$this->assertEquals(self::PARENTCLASS, $metadata->getClassName());
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$this->assertEquals(self::PARENT_CLASS, $metadata->getClassName());
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$this->assertEquals($parentClassConstraints, $metadata->getConstraints());
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}
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@ -104,7 +119,7 @@ class LazyLoadingMetadataFactoryTest extends \PHPUnit_Framework_TestCase
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$cache = $this->getMock('Symfony\Component\Validator\Mapping\Cache\CacheInterface');
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$factory = new LazyLoadingMetadataFactory($loader, $cache);
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$metadata = new ClassMetadata(self::PARENTCLASS);
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$metadata = new ClassMetadata(self::PARENT_CLASS);
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$metadata->addConstraint(new ConstraintA());
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$loader->expects($this->never())
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@ -116,7 +131,7 @@ class LazyLoadingMetadataFactoryTest extends \PHPUnit_Framework_TestCase
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->method('read')
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->will($this->returnValue($metadata));
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$this->assertEquals($metadata, $factory->getMetadataFor(self::PARENTCLASS));
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$this->assertEquals($metadata, $factory->getMetadataFor(self::PARENT_CLASS));
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}
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}
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