- Work done on insert() and update() function from QueryBuilder.

- Fixed save() and saveAll() from repository
- QueryBuilder can now be flushed after queries.

src/Ulmus.php

@@ -21,14 +21,16 @@ abstract class Ulmus
     public static function iterateQueryBuilder(QueryBuilder $queryBuilder, ? ConnectionAdapter $adapter = null) : Generator
     {
         $sql = $queryBuilder->render();
-        $statement = ( $adapter ?: static::$defaultAdapter )->pdo->select($sql, $queryBuilder->parameters ?? []);
+        
+        $statement = ( $adapter ?: static::$defaultAdapter )->pdo()->select($sql, $queryBuilder->parameters ?? []);
 
         while ( $row = $statement->fetch() ) {
             yield $row;
         }
 
         $statement->closeCursor();
-
+        $queryBuilder->reset();
+        
         return [
             'count' => $statement->rowCount(),
         ];
@@ -36,12 +38,15 @@ abstract class Ulmus
     
     public static function pdo(? ConnectionAdapter $adapter = null) : Common\PdoObject
     {
-        return ( $adapter ?: static::$defaultAdapter )->pdo;
+        return ( $adapter ?: static::$defaultAdapter )->pdo();
     }
     
     public static function runQuery(QueryBuilder $queryBuilder, ? ConnectionAdapter $adapter = null)
     {
-        return static::pdo($adapter)->runQuery($queryBuilder->render(), array_merge($queryBuilder->values ?? [], $queryBuilder->parameters ?? []));
+        $result = static::pdo($adapter)->runQuery($queryBuilder->render(), array_merge($queryBuilder->values ?? [], $queryBuilder->parameters ?? []));
+        $queryBuilder->reset();
+        
+        return $result;
     }
 
     public static function resolveEntity(string $entityClass) : Common\EntityResolver
@@ -80,6 +85,9 @@ abstract class Ulmus
     
     protected static function fetchQueryBuilder(QueryBuilder $queryBuilder, ? ConnectionAdapter $adapter = null) : array
     {
-        return ( $adapter ?: static::$defaultAdapter )->pdo->select($queryBuilder->render(), $queryBuilder->parameters ?? [])->fetchAll();
+        $result =  ( $adapter ?: static::$defaultAdapter )->pdo->select($queryBuilder->render(), $queryBuilder->parameters ?? [])->fetchAll();
+        $queryBuilder->reset();
+        
+        return $result;
     }
 }