[2.0] Finishing optimistic locking with timestamp support

lib/Doctrine/ORM/Mapping/ClassMetadata.php

@@ -1742,6 +1742,29 @@ final class ClassMetadata
         $this->sequenceGeneratorDefinition = $definition;
     }
     
+    /**
+     * Sets the version field mapping used for versioning. Sets the default
+     * value to use depending on the column type
+     *
+     * @param array $mapping   The version field mapping array
+     * @return void
+     */
+    public function setVersionMapping(array &$mapping)
+    {
+        $this->isVersioned = true;
+        $this->versionField = $mapping['fieldName'];
+
+        if ( ! isset($mapping['default'])) {
+            if ($mapping['type'] == 'integer') {
+                $mapping['default'] = 1;
+            } else if ($mapping['type'] == 'datetime') {
+                $mapping['default'] = 'CURRENT_TIMESTAMP';
+            } else {
+                throw DoctrineException::unsupportedOptimisticLockingType($mapping['type']);
+            }
+        }
+    }
+    
     /**
      * Checks whether this class is versioned for optimistic locking.
      * 

lib/Doctrine/ORM/Mapping/Driver/AnnotationDriver.php

@@ -179,15 +179,7 @@ class AnnotationDriver implements Driver
                     $metadata->setIdGeneratorType(constant('Doctrine\ORM\Mapping\ClassMetadata::GENERATOR_TYPE_' . $generatedValueAnnot->strategy));
                 }
                 if ($versionAnnot = $this->_reader->getPropertyAnnotation($property, 'Doctrine\ORM\Mapping\Version')) {
-                    $metadata->setVersioned(true);
-                    $metadata->setVersionField($mapping['fieldName']);
-
-                    if ( ! isset($mapping['default'])) {
-                        // TODO: When we have timestamp optimistic locking
-                        // we'll have to figure out a better way to do this?
-                        // Can we set the default value to be NOW() ?
-                        $mapping['default'] = 1;
-                    }
+                    $metadata->setVersionMapping($mapping);
                 }
                 $metadata->mapField($mapping);
 

lib/Doctrine/ORM/Mapping/Driver/XmlDriver.php

@@ -90,6 +90,9 @@ class XmlDriver extends AbstractFileDriver
                     if (isset($fieldMapping['scale'])) {
                         $mapping['scale'] = (int)$fieldMapping['scale'];
                     }
+                    if (isset($fieldMapping['version']) && $fieldMapping['version']) {
+                        $metadata->setVersionMapping($mapping);
+                    }
                     $metadata->mapField($mapping);
                 }
             }

lib/Doctrine/ORM/Mapping/Driver/YamlDriver.php

@@ -70,6 +70,9 @@ class YamlDriver extends AbstractFileDriver
                     if (isset($fieldMapping['length'])) {
                         $mapping['length'] = $fieldMapping['length'];
                     }
+                    if (isset($fieldMapping['version']) && $fieldMapping['version']) {
+                        $metadata->setVersionMapping($mapping);
+                    }
                     $metadata->mapField($mapping);
                 }
             }

lib/Doctrine/ORM/Persisters/StandardEntityPersister.php

@@ -233,9 +233,16 @@ class StandardEntityPersister
 
         if ($isVersioned = $this->_class->isVersioned) {
             $versionField = $this->_class->versionField;
-            $where[$this->_class->fieldNames[$versionField]] = $entity->version;
+            $versionFieldType = $this->_class->getTypeOfField($versionField);
+            $where[$this->_class->fieldNames[$versionField]] = Type::getType(
+                $this->_class->fieldMappings[$versionField]['type']
+            )->convertToDatabaseValue($entity->version, $this->_platform);
             $versionFieldColumnName = $this->_class->getQuotedColumnName($versionField, $this->_platform);
-            $set[] = $versionFieldColumnName . ' = ' . $versionFieldColumnName . ' + 1';
+            if ($versionFieldType == 'integer') {
+                $set[] = $versionFieldColumnName . ' = ' . $versionFieldColumnName . ' + 1';
+            } else if ($versionFieldType == 'datetime') {
+                $set[] = $versionFieldColumnName . ' = CURRENT_TIMESTAMP';
+            }
         }
 
         $params = array_merge(array_values($data), array_values($where));

tests/Doctrine/Tests/ORM/Functional/Locking/OptimisticTest.php

@@ -24,7 +24,8 @@ class OptimisticTest extends \Doctrine\Tests\OrmFunctionalTestCase
             $this->_schemaTool->createSchema(array(
                 $this->_em->getClassMetadata('Doctrine\Tests\ORM\Functional\Locking\OptimisticJoinedParent'),
                 $this->_em->getClassMetadata('Doctrine\Tests\ORM\Functional\Locking\OptimisticJoinedChild'),
-                $this->_em->getClassMetadata('Doctrine\Tests\ORM\Functional\Locking\OptimisticStandard')
+                $this->_em->getClassMetadata('Doctrine\Tests\ORM\Functional\Locking\OptimisticStandard'),
+                $this->_em->getClassMetadata('Doctrine\Tests\ORM\Functional\Locking\OptimisticTimestamp')
             ));
         } catch (\Exception $e) {
             // Swallow all exceptions. We do not test the schema tool here.
@@ -119,6 +120,33 @@ class OptimisticTest extends \Doctrine\Tests\OrmFunctionalTestCase
         $test->name = 'WHATT???';
         $this->_em->flush();
     }
+
+    public function testOptimisticTimestampSetsDefaultValue()
+    {
+        $test = new OptimisticTimestamp();
+        $test->name = 'Testing';
+        $this->_em->persist($test);
+        $this->_em->flush();
+
+        $this->assertTrue(strtotime($test->version) > 0);
+    }
+
+    /**
+     * @expectedException Doctrine\ORM\OptimisticLockException
+     */
+    public function testOptimisticTimestampFailureThrowsException()
+    {
+        $q = $this->_em->createQuery('SELECT t FROM Doctrine\Tests\ORM\Functional\Locking\OptimisticTimestamp t WHERE t.name = :name');
+        $q->setParameter('name', 'Testing');
+        $test = $q->getSingleResult();
+
+        // Manually increment the version datetime column
+        $this->_conn->execute('UPDATE optimistic_timestamp SET version = ? WHERE id = ?', array(date('Y-m-d H:i:s', strtotime($test->version->format('Y-m-d H:i:s')) + 3600), $test->id));
+
+        // Try and update the record and it should throw an exception
+        $test->name = 'Testing again';
+        $this->_em->flush();
+    }
 }
 
 /**
@@ -180,4 +208,27 @@ class OptimisticStandard
      * @Version @Column(type="integer")
      */
     public $version;
+}
+
+/**
+ * @Entity
+ * @Table(name="optimistic_timestamp")
+ */
+class OptimisticTimestamp
+{
+    /**
+     * @Id @Column(type="integer")
+     * @GeneratedValue(strategy="AUTO")
+     */
+    public $id;
+
+    /**
+     * @Column(type="string", length=255)
+     */
+    public $name;
+
+    /**
+     * @Version @Column(type="datetime")
+     */
+    public $version;
 }
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