diff --git a/src/Attribute/Schema.php b/src/Attribute/Schema.php
index ec26674..7966dba 100644
--- a/src/Attribute/Schema.php
+++ b/src/Attribute/Schema.php
@@ -2,16 +2,16 @@
 
 namespace Rinsvent\DTO2Data\Attribute;
 
-use Rinsvent\DTO2Data\DTO\Map;
-
 #[\Attribute(\Attribute::TARGET_ALL|\Attribute::IS_REPEATABLE)]
 class Schema
 {
+    public ?array $baseMap = null;
+
     public function __construct(
         public ?array $map = null,
         /** @var string[] $tags */
         public array $tags = ['default']
     ) {
-        $this->map = $map ?? $this->map;
+        $this->map = $map ?? $this->baseMap;
     }
 }
diff --git a/src/Dto2DataConverter.php b/src/Dto2DataConverter.php
index 9765fff..c3c3a9d 100644
--- a/src/Dto2DataConverter.php
+++ b/src/Dto2DataConverter.php
@@ -36,16 +36,12 @@ class Dto2DataConverter
         foreach ($map as $key => $propertyInfo) {
             $sourceName = is_array($propertyInfo) ? $key : $propertyInfo;
 
-            if (method_exists($object, $sourceName)) {
-                $reflectionSource = new ReflectionMethod($object, $sourceName);
-                $value = $this->getMethodValue($object, $reflectionSource);
-            } elseif (property_exists($object, $sourceName)) {
-                $reflectionSource = new ReflectionProperty($object, $sourceName);
-                $value = $this->getValue($object, $reflectionSource);
-            } else {
+            if (!method_exists($object, $sourceName) && !property_exists($object, $sourceName)) {
                 continue;
             }
 
+            $value = $this->grabValue($object, $sourceName);
+
             if (is_object($value)) {
                 // Если у объекта нет карты, то не сериализуем.
                 if (!is_array($propertyInfo)) {
@@ -67,19 +63,12 @@ class Dto2DataConverter
                     }
                 }
                 $value = $tempValue;
-            } elseif (!is_scalar($value)) {
+            } elseif (!is_scalar($value) && null !== $value) {
                 continue;
             }
 
-            if (method_exists($object, $sourceName)) {
-                $this->processMethodTransformers($reflectionSource, $value, $tags);
-                $dataPath = $this->grabMethodDataPath($reflectionSource, $tags);
-            } else {
-                $this->processTransformers($reflectionSource, $value, $tags);
-                $dataPath = $this->grabDataPath($reflectionSource, $tags);
-            }
-
-            $dataPath = $dataPath ?? $sourceName;
+            $this->processIterationTransformers($object, $sourceName, $value, $tags);
+            $dataPath = $this->grabIterationDataPath($object, $sourceName, $tags);
             $data[$dataPath] = $value;
         }
 
@@ -88,6 +77,42 @@ class Dto2DataConverter
         return $data;
     }
 
+    protected function grabValue(object $object, $sourceName)
+    {
+        if (method_exists($object, $sourceName)) {
+            $reflectionSource = new ReflectionMethod($object, $sourceName);
+            return $this->getMethodValue($object, $reflectionSource);
+        } elseif (property_exists($object, $sourceName)) {
+            $reflectionSource = new ReflectionProperty($object, $sourceName);
+            return $this->getValue($object, $reflectionSource);
+        }
+
+        return null;
+    }
+
+    public function processIterationTransformers(object $object, string $sourceName, &$value, array $tags): void
+    {
+        if (method_exists($object, $sourceName)) {
+            $reflectionSource = new ReflectionMethod($object, $sourceName);
+            $this->processMethodTransformers($reflectionSource, $value, $tags);
+        } elseif (property_exists($object, $sourceName)) {
+            $reflectionSource = new ReflectionProperty($object, $sourceName);
+            $this->processTransformers($reflectionSource, $value, $tags);
+        }
+    }
+
+    public function grabIterationDataPath(object $object, string $sourceName, array $tags): string
+    {
+        if (method_exists($object, $sourceName)) {
+            $reflectionSource = new ReflectionMethod($object, $sourceName);
+            $dataPath = $this->grabMethodDataPath($reflectionSource, $tags);
+        } elseif (property_exists($object, $sourceName)) {
+            $reflectionSource = new ReflectionProperty($object, $sourceName);
+            $dataPath = $this->grabDataPath($reflectionSource, $tags);
+        }
+        return $dataPath ?? $sourceName;
+    }
+
     /**
      * Получаем теги для обработки
      */
diff --git a/tests/unit/Converter/fixtures/FillTest/HelloSchema.php b/tests/unit/Converter/fixtures/FillTest/HelloSchema.php
index 787c2ef..5d26d30 100644
--- a/tests/unit/Converter/fixtures/FillTest/HelloSchema.php
+++ b/tests/unit/Converter/fixtures/FillTest/HelloSchema.php
@@ -3,12 +3,11 @@
 namespace Rinsvent\DTO2Data\Tests\unit\Converter\fixtures\FillTest;
 
 use Rinsvent\DTO2Data\Attribute\Schema;
-use Rinsvent\DTO2Data\DTO\Map;
 
 #[\Attribute(\Attribute::TARGET_ALL|\Attribute::IS_REPEATABLE)]
 class HelloSchema extends Schema
 {
-    public ?array $map = [
+    public ?array $baseMap = [
         'surname',
         'age',
         'emails',