symfony · webmozart · Jul 21, 2014 · Jul 17, 2014
diff --git a/src/Symfony/Component/Validator/Context/ExecutionContext.php b/src/Symfony/Component/Validator/Context/ExecutionContext.php
@@ -18,6 +18,7 @@
 use Symfony\Component\Validator\Exception\BadMethodCallException;
 use Symfony\Component\Validator\Mapping\MetadataInterface;
 use Symfony\Component\Validator\Mapping\PropertyMetadataInterface;
+use Symfony\Component\Validator\ObjectInitializerInterface;
 use Symfony\Component\Validator\Util\PropertyPath;
 use Symfony\Component\Validator\Validator\ValidatorInterface;
 use Symfony\Component\Validator\Violation\ConstraintViolationBuilder;
@@ -113,6 +114,13 @@ class ExecutionContext implements ExecutionContextInterface
      */
     private $validatedConstraints = array();
 
+    /**
+     * Stores which objects have been initialized.
+     *
+     * @var array
+     */
+    private $initializedObjects;
+
     /**
      * Creates a new execution context.
      *
@@ -360,4 +368,36 @@ public function isConstraintValidated($cacheKey, $constraintHash)
     {
         return isset($this->validatedConstraints[$cacheKey.':'.$constraintHash]);
     }
+
+    /**
+     * Marks that an object was initialized.
+     *
+     * @param string $cacheKey The hash of the object
+     *
+     * @internal Used by the validator engine. Should not be called by user
+     *           code.
+     *
+     * @see ObjectInitializerInterface
+     */
+    public function markObjectAsInitialized($cacheKey)
+    {
+        $this->initializedObjects[$cacheKey] = true;
+    }
+
+    /**
+     * Returns whether an object was initialized.
+     *
+     * @param string $cacheKey The hash of the object
+     *
+     * @return bool Whether the object was already initialized
+     *
+     * @internal Used by the validator engine. Should not be called by user
+     *           code.
+     *
+     * @see ObjectInitializerInterface
+     */
+    public function isObjectInitialized($cacheKey)
+    {
+        return isset($this->initializedObjects[$cacheKey]);
+    }
 }
diff --git a/src/Symfony/Component/Validator/Tests/Fixtures/Entity.php b/src/Symfony/Component/Validator/Tests/Fixtures/Entity.php
@@ -38,6 +38,7 @@ class Entity extends EntityParent implements EntityInterface
     public $reference2;
     private $internal;
     public $data = 'Overridden data';
+    public $initialized = false;
 
     public function __construct($internal = null)
     {

diff --git a/src/Symfony/Component/Validator/Tests/Validator/Abstract2Dot5ApiTest.php b/src/Symfony/Component/Validator/Tests/Validator/Abstract2Dot5ApiTest.php
@@ -42,7 +42,7 @@ abstract class Abstract2Dot5ApiTest extends AbstractValidatorTest
      *
      * @return ValidatorInterface
      */
-    abstract protected function createValidator(MetadataFactoryInterface $metadataFactory);
+    abstract protected function createValidator(MetadataFactoryInterface $metadataFactory, array $objectInitializers = array());
 
     protected function setUp()
     {
@@ -678,4 +678,52 @@ public function testAccessCurrentObject()
 
         $this->assertTrue($called);
     }
+
+    public function testInitializeObjectsOnFirstValidation()
+    {
+        $test = $this;
+        $entity = new Entity();
+        $entity->initialized = false;
+
+        // prepare initializers that set "initialized" to true
+        $initializer1 = $this->getMock('Symfony\\Component\\Validator\\ObjectInitializerInterface');
+        $initializer2 = $this->getMock('Symfony\\Component\\Validator\\ObjectInitializerInterface');
+
+        $initializer1->expects($this->once())
+            ->method('initialize')
+            ->with($entity)
+            ->will($this->returnCallback(function ($object) {
+                $object->initialized = true;
+            }));
+
+        $initializer2->expects($this->once())
+            ->method('initialize')
+            ->with($entity);
+
+        $this->validator = $this->createValidator($this->metadataFactory, array(
+            $initializer1,
+            $initializer2
+        ));
+
+        // prepare constraint which
+        // * checks that "initialized" is set to true
+        // * validates the object again
+        $callback = function ($object, ExecutionContextInterface $context) use ($test) {
+            $test->assertTrue($object->initialized);
+
+            // validate again in same group
+            $validator = $context->getValidator()->inContext($context);
+
+            $validator->validate($object);
+
+            // validate again in other group
+            $validator->validate($object, null, 'SomeGroup');
+        };
+
+        $this->metadata->addConstraint(new Callback($callback));
+
+        $this->validate($entity);
+
+        $this->assertTrue($entity->initialized);
+    }
 }
diff --git a/src/Symfony/Component/Validator/Tests/Validator/AbstractLegacyApiTest.php b/src/Symfony/Component/Validator/Tests/Validator/AbstractLegacyApiTest.php
@@ -38,7 +38,7 @@ abstract class AbstractLegacyApiTest extends AbstractValidatorTest
      *
      * @return LegacyValidatorInterface
      */
-    abstract protected function createValidator(MetadataFactoryInterface $metadataFactory);
+    abstract protected function createValidator(MetadataFactoryInterface $metadataFactory, array $objectInitializers = array());
 
     protected function setUp()
     {
@@ -238,6 +238,52 @@ public function testAddCustomizedViolation()
         $this->assertSame('Code', $violations[0]->getCode());
     }
 
+    public function testInitializeObjectsOnFirstValidation()
+    {
+        $test = $this;
+        $entity = new Entity();
+        $entity->initialized = false;
+
+        // prepare initializers that set "initialized" to true
+        $initializer1 = $this->getMock('Symfony\\Component\\Validator\\ObjectInitializerInterface');
+        $initializer2 = $this->getMock('Symfony\\Component\\Validator\\ObjectInitializerInterface');
+
+        $initializer1->expects($this->once())
+            ->method('initialize')
+            ->with($entity)
+            ->will($this->returnCallback(function ($object) {
+                $object->initialized = true;
+            }));
+
+        $initializer2->expects($this->once())
+            ->method('initialize')
+            ->with($entity);
+
+        $this->validator = $this->createValidator($this->metadataFactory, array(
+            $initializer1,
+            $initializer2
+        ));
+
+        // prepare constraint which
+        // * checks that "initialized" is set to true
+        // * validates the object again
+        $callback = function ($object, ExecutionContextInterface $context) use ($test) {
+            $test->assertTrue($object->initialized);
+
+            // validate again in same group
+            $context->validate($object);
+
+            // validate again in other group
+            $context->validate($object, '', 'SomeGroup');
+        };
+
+        $this->metadata->addConstraint(new Callback($callback));
+
+        $this->validate($entity);
+
+        $this->assertTrue($entity->initialized);
+    }
+
     public function testGetMetadataFactory()
     {
         $this->assertSame($this->metadataFactory, $this->validator->getMetadataFactory());

diff --git a/src/Symfony/Component/Validator/Tests/Validator/LegacyValidator2Dot5ApiTest.php b/src/Symfony/Component/Validator/Tests/Validator/LegacyValidator2Dot5ApiTest.php
@@ -28,10 +28,10 @@ protected function setUp()
         parent::setUp();
     }
 
-    protected function createValidator(MetadataFactoryInterface $metadataFactory)
+    protected function createValidator(MetadataFactoryInterface $metadataFactory, array $objectInitializers = array())
     {
         $contextFactory = new LegacyExecutionContextFactory($metadataFactory, new DefaultTranslator());
 
-        return new LegacyValidator($contextFactory, $metadataFactory, new ConstraintValidatorFactory());
+        return new LegacyValidator($contextFactory, $metadataFactory, new ConstraintValidatorFactory(), $objectInitializers);
     }
 }
diff --git a/src/Symfony/Component/Validator/Tests/Validator/LegacyValidatorLegacyApiTest.php b/src/Symfony/Component/Validator/Tests/Validator/LegacyValidatorLegacyApiTest.php
@@ -28,10 +28,10 @@ protected function setUp()
         parent::setUp();
     }
 
-    protected function createValidator(MetadataFactoryInterface $metadataFactory)
+    protected function createValidator(MetadataFactoryInterface $metadataFactory, array $objectInitializers = array())
     {
         $contextFactory = new LegacyExecutionContextFactory($metadataFactory, new DefaultTranslator());
 
-        return new LegacyValidator($contextFactory, $metadataFactory, new ConstraintValidatorFactory());
+        return new LegacyValidator($contextFactory, $metadataFactory, new ConstraintValidatorFactory(), $objectInitializers);
     }
 }
diff --git a/src/Symfony/Component/Validator/Tests/Validator/RecursiveValidator2Dot5ApiTest.php b/src/Symfony/Component/Validator/Tests/Validator/RecursiveValidator2Dot5ApiTest.php
@@ -19,10 +19,10 @@
 
 class RecursiveValidator2Dot5ApiTest extends Abstract2Dot5ApiTest
 {
-    protected function createValidator(MetadataFactoryInterface $metadataFactory)
+    protected function createValidator(MetadataFactoryInterface $metadataFactory, array $objectInitializers = array())
     {
         $contextFactory = new ExecutionContextFactory(new DefaultTranslator());
 
-        return new RecursiveValidator($contextFactory, $metadataFactory, new ConstraintValidatorFactory());
+        return new RecursiveValidator($contextFactory, $metadataFactory, new ConstraintValidatorFactory(), $objectInitializers);
     }
 }
diff --git a/src/Symfony/Component/Validator/Tests/ValidatorTest.php b/src/Symfony/Component/Validator/Tests/ValidatorTest.php
@@ -21,9 +21,9 @@
 
 class ValidatorTest extends AbstractLegacyApiTest
 {
-    protected function createValidator(MetadataFactoryInterface $metadataFactory)
+    protected function createValidator(MetadataFactoryInterface $metadataFactory, array $objectInitializers = array())
     {
-        return new LegacyValidator($metadataFactory, new ConstraintValidatorFactory(), new DefaultTranslator());
+        return new LegacyValidator($metadataFactory, new ConstraintValidatorFactory(), new DefaultTranslator(), 'validators', $objectInitializers);
     }
 
     /**

diff --git a/src/Symfony/Component/Validator/ValidationVisitor.php b/src/Symfony/Component/Validator/ValidationVisitor.php
@@ -129,16 +129,19 @@ public function validate($value, $group, $propertyPath, $traverse = false, $deep
                 return;
             }
 
+            // Initialize if the object wasn't initialized before
+            if (!isset($this->validatedObjects[$hash])) {
+                foreach ($this->objectInitializers as $initializer) {
+                    if (!$initializer instanceof ObjectInitializerInterface) {
+                        throw new \LogicException('Validator initializers must implement ObjectInitializerInterface.');
+                    }
+                    $initializer->initialize($value);
+                }
+            }
+
             // Remember validating this object before starting and possibly
             // traversing the object graph
             $this->validatedObjects[$hash][$group] = true;
-
-            foreach ($this->objectInitializers as $initializer) {
-                if (!$initializer instanceof ObjectInitializerInterface) {
-                    throw new \LogicException('Validator initializers must implement ObjectInitializerInterface.');
-                }
-                $initializer->initialize($value);
-            }
         }
 
         // Validate arrays recursively by default, otherwise every driver needs

diff --git a/src/Symfony/Component/Validator/Validator/RecursiveContextualValidator.php b/src/Symfony/Component/Validator/Validator/RecursiveContextualValidator.php
@@ -27,6 +27,7 @@
 use Symfony\Component\Validator\Mapping\PropertyMetadataInterface;
 use Symfony\Component\Validator\Mapping\TraversalStrategy;
 use Symfony\Component\Validator\MetadataFactoryInterface;
+use Symfony\Component\Validator\ObjectInitializerInterface;
 use Symfony\Component\Validator\Util\PropertyPath;
 
 /**
@@ -52,23 +53,30 @@ class RecursiveContextualValidator implements ContextualValidatorInterface
      */
     private $validatorFactory;
 
+    /**
+     * @var ObjectInitializerInterface[]
+     */
+    private $objectInitializers;
+
     /**
      * Creates a validator for the given context.
      *
-     * @param ExecutionContextInterface           $context          The execution context
-     * @param MetadataFactoryInterface            $metadataFactory  The factory for
-     *                                                              fetching the metadata
-     *                                                              of validated objects
-     * @param ConstraintValidatorFactoryInterface $validatorFactory The factory for creating
-     *                                                              constraint validators
+     * @param ExecutionContextInterface           $context            The execution context
+     * @param MetadataFactoryInterface            $metadataFactory    The factory for
+     *                                                                fetching the metadata
+     *                                                                of validated objects
+     * @param ConstraintValidatorFactoryInterface $validatorFactory   The factory for creating
+     *                                                                constraint validators
+     * @param ObjectInitializerInterface[]        $objectInitializers The object initializers
      */
-    public function __construct(ExecutionContextInterface $context, MetadataFactoryInterface $metadataFactory, ConstraintValidatorFactoryInterface $validatorFactory)
+    public function __construct(ExecutionContextInterface $context, MetadataFactoryInterface $metadataFactory, ConstraintValidatorFactoryInterface $validatorFactory, array $objectInitializers = array())
     {
         $this->context = $context;
         $this->defaultPropertyPath = $context->getPropertyPath();
         $this->defaultGroups = array($context->getGroup() ?: Constraint::DEFAULT_GROUP);
         $this->metadataFactory = $metadataFactory;
         $this->validatorFactory = $validatorFactory;
+        $this->objectInitializers = $objectInitializers;
     }
 
     /**
@@ -432,6 +440,14 @@ private function validateClassNode($object, $cacheKey, ClassMetadataInterface $m
     {
         $context->setNode($object, $object, $metadata, $propertyPath);
 
+        if (!$context->isObjectInitialized($cacheKey)) {
+            foreach ($this->objectInitializers as $initializer) {
+                $initializer->initialize($object);
+            }
+
+            $context->markObjectAsInitialized($cacheKey);
+        }
+
         foreach ($groups as $key => $group) {
             // If the "Default" group is replaced by a group sequence, remember
             // to cascade the "Default" group when traversing the group

diff --git a/src/Symfony/Component/Validator/Validator/RecursiveValidator.php b/src/Symfony/Component/Validator/Validator/RecursiveValidator.php
@@ -15,6 +15,7 @@
 use Symfony\Component\Validator\Context\ExecutionContextFactoryInterface;
 use Symfony\Component\Validator\Context\ExecutionContextInterface;
 use Symfony\Component\Validator\MetadataFactoryInterface;
+use Symfony\Component\Validator\ObjectInitializerInterface;
 
 /**
  * Recursive implementation of {@link ValidatorInterface}.
@@ -39,22 +40,29 @@ class RecursiveValidator implements ValidatorInterface
      */
     protected $validatorFactory;
 
+    /**
+     * @var ObjectInitializerInterface[]
+     */
+    protected $objectInitializers;
+
     /**
      * Creates a new validator.
      *
-     * @param ExecutionContextFactoryInterface    $contextFactory   The factory for
-     *                                                              creating new contexts
-     * @param MetadataFactoryInterface            $metadataFactory  The factory for
-     *                                                              fetching the metadata
-     *                                                              of validated objects
-     * @param ConstraintValidatorFactoryInterface $validatorFactory The factory for creating
-     *                                                              constraint validators
+     * @param ExecutionContextFactoryInterface    $contextFactory     The factory for
+     *                                                                creating new contexts
+     * @param MetadataFactoryInterface            $metadataFactory    The factory for
+     *                                                                fetching the metadata
+     *                                                                of validated objects
+     * @param ConstraintValidatorFactoryInterface $validatorFactory   The factory for creating
+     *                                                                constraint validators
+     * @param ObjectInitializerInterface[]        $objectInitializers The object initializers
      */
-    public function __construct(ExecutionContextFactoryInterface $contextFactory, MetadataFactoryInterface $metadataFactory, ConstraintValidatorFactoryInterface $validatorFactory)
+    public function __construct(ExecutionContextFactoryInterface $contextFactory, MetadataFactoryInterface $metadataFactory, ConstraintValidatorFactoryInterface $validatorFactory, array $objectInitializers = array())
     {
         $this->contextFactory = $contextFactory;
         $this->metadataFactory = $metadataFactory;
         $this->validatorFactory = $validatorFactory;
+        $this->objectInitializers = $objectInitializers;
     }
 
     /**
@@ -65,7 +73,8 @@ public function startContext($root = null)
         return new RecursiveContextualValidator(
             $this->contextFactory->createContext($this, $root),
             $this->metadataFactory,
-            $this->validatorFactory
+            $this->validatorFactory,
+            $this->objectInitializers
         );
     }
 
@@ -77,7 +86,8 @@ public function inContext(ExecutionContextInterface $context)
         return new RecursiveContextualValidator(
             $context,
             $this->metadataFactory,
-            $this->validatorFactory
+            $this->validatorFactory,
+            $this->objectInitializers
         );
     }