Fallback to native entity if no revision found for properties

If an audited entity has relational properties, the reader will
try to find them as the same version, or previous.

But if the targeted class does not has any revision at all, this
produces a NoRevisionFound exception.

This should be catched and should fallback to a classic doctrine find query.

src/SimpleThings/EntityAudit/AuditReader.php

@@ -443,6 +443,9 @@ private function createEntity($className, array $columnMap, array $data, $revisi
                                 $value = $this->find($targetClass->name, $pk, $revision, array('threatDeletionsAsExceptions' => true));
                             } catch (DeletedException $e) {
                                 $value = null;
+                            } catch (NoRevisionFoundException $e) {
+                                // The entity does not have any revision yet. So let's get the actual state of it.
+                                $value = $this->em->find($targetClass->name, $pk);
                             }
 
                             $class->reflFields[$field]->setValue($entity, $value);

tests/SimpleThings/Tests/EntityAudit/CoreTest.php

@@ -222,6 +222,65 @@ public function testFindEntitesChangedAtRevision()
         $this->assertInstanceOf('SimpleThings\EntityAudit\Tests\Fixtures\Core\UserAudit', $changedEntities[1]->getEntity());
     }
 
+    public function testNotVersionedRelationFind()
+    {
+        // Insert user without the manager to skip revision registering.
+        $this->em->getConnection()->insert(
+            $this->em->getClassMetadata('SimpleThings\EntityAudit\Tests\Fixtures\Core\UserAudit')->getTableName(),
+            array(
+                'name' => 'beberlei',
+            )
+        );
+
+        $article = new ArticleAudit(
+            "test",
+            "yadda!",
+            $this->em->getRepository('SimpleThings\EntityAudit\Tests\Fixtures\Core\UserAudit')->find(1),
+            'text'
+        );
+
+        $this->em->persist($article);
+        $this->em->flush();
+
+        $reader = $this->auditManager->createAuditReader($this->em);
+
+        $this->assertSame('beberlei', $reader->find(get_class($article), 1, 1)->getAuthor()->getName());
+    }
+
+    public function testNotExistingRelationFind()
+    {
+        // Insert user without the manager to skip revision registering.
+        $this->em->getConnection()->insert(
+            $this->em->getClassMetadata('SimpleThings\EntityAudit\Tests\Fixtures\Core\UserAudit')->getTableName(),
+            array(
+                'name' => 'beberlei',
+            )
+        );
+
+        $article = new ArticleAudit(
+            "test",
+            "yadda!",
+            $this->em->getRepository('SimpleThings\EntityAudit\Tests\Fixtures\Core\UserAudit')->find(1),
+            'text'
+        );
+
+        $this->em->persist($article);
+        $this->em->flush();
+
+        // Then, remove the user
+        $this->em->getConnection()->delete(
+            $this->em->getClassMetadata('SimpleThings\EntityAudit\Tests\Fixtures\Core\UserAudit')->getTableName(),
+            array(
+                'name' => 'beberlei',
+            )
+        );
+        $this->em->clear();
+
+        $reader = $this->auditManager->createAuditReader($this->em);
+
+        $this->assertNull($reader->find(get_class($article), 1, 1)->getAuthor());
+    }
+
     public function testFindRevisions()
     {
         $user = new UserAudit("beberlei");
@@ -341,14 +400,14 @@ public function testUsernameResolvingIsDynamic()
         $this->auditManager->getConfiguration()->setUsernameCallable(function () {
             return 'user: ' . uniqid();
         });
-        
+
         $user = new UserAudit('beberlei');
         $this->em->persist($user);
         $this->em->flush();
-        
+
         $user->setName('b.eberlei');
         $this->em->flush();
-        
+
         $reader = $this->auditManager->createAuditReader($this->em);
         $revisions = $reader->findRevisionHistory();
 

tests/SimpleThings/Tests/EntityAudit/Fixtures/Core/ArticleAudit.php

@@ -37,6 +37,11 @@ public function getId()
         return $this->id;
     }
 
+    public function getAuthor()
+    {
+        return $this->author;
+    }
+
     public function setText($text)
     {
         $this->text = $text;