diff --git a/src/Entity/DatasetHandler.php b/src/Entity/DatasetHandler.php
index 1a3b32b..0faba5f 100644
--- a/src/Entity/DatasetHandler.php
+++ b/src/Entity/DatasetHandler.php
@@ -78,7 +78,6 @@ class DatasetHandler
                 }
             }
             elseif ( EntityField::isScalarType($type->type) ) {
-
                 if ( $type->type === 'string' ) {
                     $attribute = $this->entityResolver->searchFieldAnnotation($field->name, [ Field::class ] );
 
@@ -102,8 +101,10 @@ class DatasetHandler
                 try {
                     yield $field->name => Ulmus::instanciateObject($type->type, [ $value ]);
                 }
-                catch(\Error $e) {
-                    throw new \Error(sprintf("%s for class '%s' on field '%s'", $e->getMessage(), get_class($this), $field->name));
+                catch(\Throwable $e) {
+                    $type = $e::class;
+
+                    throw new $type(sprintf("%s for class '%s' on field '%s'", $e->getMessage(), get_class($this), $field->name), 101, $e);
                 }
             }
         }
diff --git a/src/Entity/ObjectInstanciator.php b/src/Entity/ObjectInstanciator.php
index 507dce6..fc81d82 100644
--- a/src/Entity/ObjectInstanciator.php
+++ b/src/Entity/ObjectInstanciator.php
@@ -5,22 +5,43 @@ namespace Ulmus\Entity;
 class ObjectInstanciator {
     
     protected array $objectCallbackDefinition;
-    
+
     public function instanciate(string $type, array $arguments) : object
     {
-        if ( isset($this->objectCallbackDefinition[$type]) ) {
+        if (is_object($arguments[0]) && is_a($arguments[0], $type)) {
+            return $arguments[0];
+        }
+        elseif ( isset($this->objectCallbackDefinition[$type]) ) {
             return $this->objectCallbackDefinition[$type](...$arguments);
         }
-        elseif ( ($obj = new $type() ) instanceof EntityObjectInterface ) {
-            return $obj->load(...$arguments);
-        }
-        elseif ( ($obj = new $type() ) instanceof JsonUnserializable ) {
-            $obj->jsonUnserialize(json_decode($arguments[0], true));
-
-            return $obj;
-        }
         else {
-            return new $type(...$arguments);
+            $reflect = new \ReflectionClass($type);
+
+            if ( is_a($type, EntityObjectInterface::class, true) ) {
+                try {
+                    $obj = $reflect->newInstance();
+                }
+                catch(\Throwable $t) {
+                    $obj = $reflect->newInstanceWithoutConstructor();
+                }
+
+                return $obj->load(...$arguments);
+            }
+            elseif ( is_a($type, JsonUnserializable::class, true)) {
+                try {
+                    $obj = $reflect->newInstance();
+                }
+                catch(\Throwable $t) {
+                    $obj = $reflect->newInstanceWithoutConstructor();
+                }
+
+                $obj->jsonUnserialize(json_decode($arguments[0], true));
+
+                return $obj;
+            }
+            else {
+                return new $type(...$arguments);
+            }
         }
     }
     
diff --git a/src/SearchRequest/Attribute/SearchOrderBy.php b/src/SearchRequest/Attribute/SearchOrderBy.php
index c23866f..f7e14c8 100644
--- a/src/SearchRequest/Attribute/SearchOrderBy.php
+++ b/src/SearchRequest/Attribute/SearchOrderBy.php
@@ -16,5 +16,6 @@ class SearchOrderBy extends SearchParameter
         public null|string|\Stringable|array $field = null,
         public null|SearchMethodEnum $order = null,
         public string $description = "",
+        public PropertyValueSource|array $source = PropertyValueSource::QueryParams,
     ) {}
 }
\ No newline at end of file
diff --git a/src/SearchRequest/SearchRequestFromRequestTrait.php b/src/SearchRequest/SearchRequestFromRequestTrait.php
index 08871d4..3eb848d 100644
--- a/src/SearchRequest/SearchRequestFromRequestTrait.php
+++ b/src/SearchRequest/SearchRequestFromRequestTrait.php
@@ -23,6 +23,11 @@ trait SearchRequestFromRequestTrait
 
     protected array $parsedParameters = [];
 
+    public function toArray() : array
+    {
+        return json_decode(json_encode($this), true);
+    }
+
     public function fromParsedParameters(Repository $repository) : SearchRequestInterface
     {
         foreach($this->parsedParameters as $property => $param) {
@@ -69,6 +74,7 @@ trait SearchRequestFromRequestTrait
         $this->applyConditions(
             fn($propertyName) => $data["$propertyName:condition"] ?? null
         );
+
         return $this;
     }
 
@@ -171,7 +177,7 @@ trait SearchRequestFromRequestTrait
 
                     case $attribute instanceof SearchOrderBy:
                         if ($value !== null) {
-                            $this->$propertyName = $value;
+                            $this->$propertyName = $this->parseValue($property, $value);
                         }
 
                         $this->parseAttributeOrderBy($attribute, $field, $propertyName);
@@ -184,24 +190,7 @@ trait SearchRequestFromRequestTrait
                             $this->$propertyName = !empty($value);
                         }
                         elseif ($value !== null) {
-                            foreach ($property->getTypes() as $type) {
-                                $enum = $type->type;
-
-                                if (enum_exists($enum)) {
-                                    try {
-                                        $this->$propertyName = $value instanceof \UnitEnum ? $value : $type->type::from($value);
-                                    } catch (\ValueError $ex) {
-                                        $cases = implode(', ', array_map(fn($e) => $e->name, $enum::cases()));
-
-                                        throw new \ValueError(
-                                            sprintf("Given value '%s' do not exists within enum '%s'. Try one of those values instead : %s", $value, $enum, $cases)
-                                        );
-                                    }
-                                }
-                                elseif ($type->builtIn || $value instanceof \Stringable ) {
-                                    $this->$propertyName = $value;
-                                }
-                            }
+                            $this->$propertyName = $this->parseValue($property, $value);
                         }
 
                         $this->parseAttributeMethod($attribute, $field, $propertyName);
@@ -211,6 +200,28 @@ trait SearchRequestFromRequestTrait
         }
     }
 
+    protected function parseValue(\Notes\Common\ReflectedProperty $property, mixed $value) : mixed
+    {
+        foreach ($property->getTypes() as $type) {
+            $enum = $type->type;
+
+            if (enum_exists($enum)) {
+                try {
+                    return $value instanceof \UnitEnum ? $value : $type->type::from($value);
+                } catch (\ValueError $ex) {
+                    $cases = implode(', ', array_map(fn($e) => $e->name, $enum::cases()));
+
+                    throw new \ValueError(
+                        sprintf("Given value '%s' do not exists within enum '%s'. Try one of those values instead : %s", $value, $enum, $cases)
+                    );
+                }
+            }
+            elseif ($type->builtIn || $value instanceof \Stringable ) {
+                return $value;
+            }
+        }
+    }
+
     protected function getEntityField(array|string $fieldName) : string|\Stringable
     {
         # Field could be defined for another entity class
diff --git a/src/SearchRequest/SearchRequestPaginationTrait.php b/src/SearchRequest/SearchRequestPaginationTrait.php
index 66016e5..d241557 100644
--- a/src/SearchRequest/SearchRequestPaginationTrait.php
+++ b/src/SearchRequest/SearchRequestPaginationTrait.php
@@ -3,16 +3,19 @@
 namespace Ulmus\SearchRequest;
 
 use Ulmus\Repository;
+use Ulmus\SearchRequest\Attribute\SearchManual;
 
 trait SearchRequestPaginationTrait {
     use DeprecatedSearchRequestFormatTrait;
 
     public int $count = 0;
 
+    #[SearchManual]
     public int $page = 1;
 
     public int $pageCount = 0;
-    
+
+    #[SearchManual]
     public int $limit = 25;
     
     public bool $skipCount = false;