diff --git a/Database/HasBase.php b/Database/HasBase.php
index 80a6ac7d..e1c85d84 100644
--- a/Database/HasBase.php
+++ b/Database/HasBase.php
@@ -24,9 +24,9 @@ abstract class HasBase
 	protected $data;
 
 	/**
-	 * @var string
+	 * @var IOrm
 	 */
-	protected string $model;
+	protected IOrm $model;
 
 	/** @var */
 	protected $primaryId;
@@ -38,20 +38,20 @@ abstract class HasBase
 	/** @var Relation $_relation */
 	protected Relation $_relation;
 
-	/**
-	 * HasBase constructor.
-	 * @param $model
-	 * @param $primaryId
-	 * @param $value
-	 * @param Relation $relation
-	 * @throws Exception
-	 */
-	public function __construct($model, $primaryId, $value, Relation $relation)
+    /**
+     * HasBase constructor.
+     * @param IOrm $model
+     * @param $primaryId
+     * @param $value
+     * @param Relation $relation
+     * @throws Exception
+     */
+	public function __construct(IOrm $model, $primaryId, $value, Relation $relation)
 	{
 		if (!class_exists($model)) {
 			throw new Exception('Model must implement ' . ActiveRecord::class);
 		}
-		if (!in_array(ActiveRecord::class, class_implements($model))) {
+		if (!in_array(IOrm::class, class_implements($model))) {
 			throw new Exception('Model must implement ' . ActiveRecord::class);
 		}
 		if (is_array($value)) {
diff --git a/Database/IOrm.php b/Database/IOrm.php
index a5cbbbbd..68342d74 100644
--- a/Database/IOrm.php
+++ b/Database/IOrm.php
@@ -23,6 +23,20 @@ interface IOrm
 	 */
 	public static function findOne($param, $db = NULL);
 
+
+    /**
+     * @return string
+     */
+	public static function className();
+
+
+    /**
+     * @return ActiveQuery
+     * return a sql queryBuilder
+     */
+	public static function find();
+
+
 	/**
 	 * @param $dbName
 	 * @return Connection