diff --git a/src/Common/PdoObject.php b/src/Common/PdoObject.php
index a354c6a..3a85cfd 100644
--- a/src/Common/PdoObject.php
+++ b/src/Common/PdoObject.php
@@ -92,10 +92,6 @@ class PdoObject extends PDO {
             throw $e;
         }
         catch (\Throwable $e) {
-            if ( function_exists("debogueur") ) {
-                debogueur($statement, $parameters, $commit);
-            }
-            
             throw $e;
         }
 
diff --git a/src/EntityCollection.php b/src/EntityCollection.php
index 0058f41..1802787 100644
--- a/src/EntityCollection.php
+++ b/src/EntityCollection.php
@@ -8,6 +8,14 @@ class EntityCollection extends \ArrayObject {
 
     public ? string $entityClass = null;
 
+    public static function instance(array $data, null|string $entityClass) : self
+    {
+        $instance = new static($data);
+        $instance->entityClass = $entityClass;
+
+        return $instance;
+    }
+
     public function filters(Callable $callback, bool $yieldValueOnly = false) : Generator
     {
         $idx = 0;
diff --git a/src/Query/Where.php b/src/Query/Where.php
index 11d9e58..6f7e0ec 100644
--- a/src/Query/Where.php
+++ b/src/Query/Where.php
@@ -76,7 +76,7 @@ class Where extends Fragment {
     protected function whereCondition($field, $value, string $operator = self::OPERATOR_EQUAL, string $condition = self::CONDITION_AND, bool $not = false) {
         return new class($this->queryBuilder, $field, $value, $operator, $condition, $not) {
 
-            public $value;
+            public mixed $value;
             public bool $not = false;
             public string $field;
             public string $operator;
@@ -85,7 +85,7 @@ class Where extends Fragment {
 
             protected string $content = "";
 
-            public function __construct(QueryBuilderInterface $queryBuilder, string $field, $value, string $operator, string $condition, bool $not) {
+            public function __construct(QueryBuilderInterface $queryBuilder, string $field, mixed $value, string $operator, string $condition, bool $not) {
                 $this->queryBuilder = $queryBuilder;
                 $this->field = $field;
                 $this->value = $value;
@@ -122,8 +122,13 @@ class Where extends Fragment {
                 if ( is_array($this->value) ) {
                     $stack = [];
 
-                    foreach($this->value as $item) {
-                        $stack[] = $this->filterValue($item);
+                    if ($this->value) {
+                        foreach ($this->value as $item) {
+                            $stack[] = $this->filterValue($item);
+                        }
+                    }
+                    else {
+                        $stack[] = $this->filterValue(false);
                     }
 
                     return "(" . implode(", ", $stack) . ")";
diff --git a/src/Query/WhereRawParameter.php b/src/Query/WhereRawParameter.php
index ed876ba..a93aea6 100644
--- a/src/Query/WhereRawParameter.php
+++ b/src/Query/WhereRawParameter.php
@@ -4,4 +4,4 @@
 namespace Ulmus\Query;
 
 
-interface WhereRawParameter {}
\ No newline at end of file
+interface WhereRawParameter extends \Stringable {}
\ No newline at end of file
diff --git a/src/QueryBuilder.php b/src/QueryBuilder.php
index 2b9de87..261bfcf 100644
--- a/src/QueryBuilder.php
+++ b/src/QueryBuilder.php
@@ -195,12 +195,12 @@ class QueryBuilder implements Query\QueryBuilderInterface
         return $this;
     }
 
-    public function where(string|\Stringable $field, $value, string $operator = Query\Where::OPERATOR_EQUAL, string $condition = Query\Where::CONDITION_AND, bool $not = false) : self
+    public function where(string|\Stringable $field, mixed $value, string $operator = Query\Where::OPERATOR_EQUAL, string $condition = Query\Where::CONDITION_AND, bool $not = false) : self
     {
         # Empty IN case
-        if ( [] === $value ) {
-            return $this;
-        }
+        #if ( [] === $value ) {
+        #    return $this;
+        #}
 
         if ( $this->where ?? false ) {
             $where = $this->where;
@@ -217,12 +217,12 @@ class QueryBuilder implements Query\QueryBuilderInterface
         return $this;
     }
 
-    public function notWhere(string|\Stringable $field, $value, string $operator = Query\Where::CONDITION_AND) : self
+    public function notWhere(string|\Stringable $field, mixed $value, string $operator = Query\Where::CONDITION_AND) : self
     {
         return $this->where($field, $value, $operator, true);
     }
 
-    public function having(string|\Stringable $field, $value, string $operator = Query\Where::OPERATOR_EQUAL, string $condition = Query\Where::CONDITION_AND, bool $not = false) : self
+    public function having(string|\Stringable $field, mixed $value, string $operator = Query\Where::OPERATOR_EQUAL, string $condition = Query\Where::CONDITION_AND, bool $not = false) : self
     {
         if ( $this->having ?? false ) {
             $having = $this->having;
@@ -476,7 +476,7 @@ class QueryBuilder implements Query\QueryBuilderInterface
         return null;
     }
 
-    public function removeFragment(/*Query\Fragment|array*/ $fragment) : void
+    public function removeFragment(Query\Fragment|array|\Stringable|string $fragment) : void
     {
         is_object($fragment) && $fragment = get_class($fragment);
 
@@ -494,7 +494,7 @@ class QueryBuilder implements Query\QueryBuilderInterface
         }
     }
 
-    public function getFragments(/*? Query\Fragment|array*/ $fragment = null) : array
+    public function getFragments(Query\Fragment|array|\Stringable|string $fragment = null) : array
     {
         return $fragment !== null ? array_filter($this->queryStack, fn($e) => is_a($e, $fragment, true) ) : $this->queryStack;
     }
@@ -504,7 +504,7 @@ class QueryBuilder implements Query\QueryBuilderInterface
         return $this->render();
     }
 
-    public function addParameter($value, string $key = null) : string
+    public function addParameter(mixed $value, string $key = null) : string
     {
         if ( $this->parent ?? false ) {
             return $this->parent->addParameter($value, $key);
diff --git a/src/Repository/ConditionTrait.php b/src/Repository/ConditionTrait.php
index e816ea4..a364c52 100644
--- a/src/Repository/ConditionTrait.php
+++ b/src/Repository/ConditionTrait.php
@@ -25,7 +25,7 @@ trait ConditionTrait
         return $this;
     }
 
-    public function where(string|\Stringable $field, $value, string $operator = Query\Where::OPERATOR_EQUAL, $condition = Query\Where::CONDITION_AND) : self
+    public function where(string|\Stringable $field, mixed $value, string $operator = Query\Where::OPERATOR_EQUAL, $condition = Query\Where::CONDITION_AND) : self
     {
         $this->queryBuilder->where($field, $value, $operator, $condition);
         
@@ -41,101 +41,101 @@ trait ConditionTrait
         return $this;
     }
     
-    public function and(string|\Stringable $field, $value, string $operator = Query\Where::OPERATOR_EQUAL) : self
+    public function and(string|\Stringable $field, mixed $value, string $operator = Query\Where::OPERATOR_EQUAL) : self
     {
         return $this->where($field, $value, $operator);
     }
 
-    public function or(string|\Stringable $field, $value, string $operator = Query\Where::OPERATOR_EQUAL) : self
+    public function or(string|\Stringable $field, mixed $value, string $operator = Query\Where::OPERATOR_EQUAL) : self
     {
         $this->queryBuilder->where($field, $value, $operator, Query\Where::CONDITION_OR);
         
         return $this;
     }
 
-    public function notWhere(string|\Stringable $field, $value, string $operator = Query\Where::OPERATOR_EQUAL) : self
+    public function notWhere(string|\Stringable $field, mixed $value, string $operator = Query\Where::OPERATOR_EQUAL) : self
     {
         $this->queryBuilder->where($field, $value, $operator, Query\Where::CONDITION_AND, true);
         
         return $this;
     }
 
-    public function orNot(string|\Stringable $field, $value, string $operator = Query\Where::OPERATOR_NOT_EQUAL) : self
+    public function orNot(string|\Stringable $field, mixed $value, string $operator = Query\Where::OPERATOR_NOT_EQUAL) : self
     {
         $this->queryBuilder->notWhere($field, $value, $operator, Query\Where::CONDITION_OR, true);
         
         return $this;
     }
 
-    public function having(string|\Stringable $field, $value, string $operator = Query\Where::OPERATOR_EQUAL, $condition = Query\Where::CONDITION_AND) : self
+    public function having(string|\Stringable $field, mixed $value, string $operator = Query\Where::OPERATOR_EQUAL, $condition = Query\Where::CONDITION_AND) : self
     {
         $this->queryBuilder->having($field, $value, $operator, $condition);
         
         return $this;
     }
 
-    public function orHaving(string|\Stringable $field, $value, string $operator = Query\Where::OPERATOR_EQUAL) : self
+    public function orHaving(string|\Stringable $field, mixed $value, string $operator = Query\Where::OPERATOR_EQUAL) : self
     {
         $this->queryBuilder->having($field, $value, $operator, Query\Where::CONDITION_OR);
         
         return $this;
     }
 
-    public function notHaving(string|\Stringable $field, $value, string $operator = Query\Where::OPERATOR_NOT_EQUAL) : self
+    public function notHaving(string|\Stringable $field, mixed $value, string $operator = Query\Where::OPERATOR_NOT_EQUAL) : self
     {
         $this->queryBuilder->having($field, $value, $operator, Query\Where::CONDITION_AND, true);
         
         return $this;
     }
 
-    public function orNotHaving(string|\Stringable $field, $value) : self
+    public function orNotHaving(string|\Stringable $field, mixed $value) : self
     {
         $this->queryBuilder->having($field, $value, Query\Where::OPERATOR_NOT_EQUAL, Query\Where::CONDITION_OR, true);
         
         return $this;
     }
     
-    public function in(string|\Stringable $field, $value, string $operator = Query\Where::COMPARISON_IN) : self
+    public function in(string|\Stringable $field, mixed $value, string $operator = Query\Where::COMPARISON_IN) : self
     {
         $this->queryBuilder->where($field, $value, $operator);
         
         return $this;
     }
 
-    public function orIn(string|\Stringable $field, $value, string $operator = Query\Where::COMPARISON_IN) : self
+    public function orIn(string|\Stringable $field, mixed $value, string $operator = Query\Where::COMPARISON_IN) : self
     {
         $this->queryBuilder->where($field, $value, $operator, Query\Where::CONDITION_OR);
         
         return $this;
     }
 
-    public function notIn(string|\Stringable $field, $value) : self
+    public function notIn(string|\Stringable $field, mixed $value) : self
     {
         $this->queryBuilder->where($field, $value, Query\Where::COMPARISON_IN, Query\Where::CONDITION_AND, true);
         
         return $this;
     }
 
-    public function orNotIn(string|\Stringable $field, $value) : self
+    public function orNotIn(string|\Stringable $field, mixed $value) : self
     {
         return $this->orNot($field, $value, Query\Where::COMPARISON_IN, Query\Where::CONDITION_OR, true);
     }
 
-    public function like(string|\Stringable $field, $value) : self
+    public function like(string|\Stringable $field, mixed $value) : self
     {
         $this->where($field, $value, Query\Where::OPERATOR_LIKE);
         
         return $this;
     }
 
-    public function orLike(string|\Stringable $field, $value) : self
+    public function orLike(string|\Stringable $field, mixed $value) : self
     {
         $this->or($field, $value, Query\Where::OPERATOR_LIKE);
         
         return $this;
     }
 
-    public function notLike(string|\Stringable $field, $value) : self
+    public function notLike(string|\Stringable $field, mixed $value) : self
     {
         $this->notWhere($field, $value, Query\Where::OPERATOR_LIKE);
         
@@ -151,7 +151,7 @@ trait ConditionTrait
         return $this;
     }
 
-    public function removeQueryFragment(/* Query\Fragment | stringable | array */ $fragment) : self
+    public function removeQueryFragment(Query\Fragment|\Stringable|string|array $fragment) : self
     {
         foreach((array) $fragment as $item) {
             $this->queryBuilder->removeFragment($item);