diff --git a/Base/Model.php b/Base/Model.php
index e5a2724..a060f96 100644
--- a/Base/Model.php
+++ b/Base/Model.php
@@ -510,6 +510,18 @@ abstract class Model extends Component implements ModelInterface, ArrayAccess, \
     }
 
 
+    /**
+     * @return array
+     */
+    public function getChanges(): array
+    {
+        if (!$this->isNewExample) {
+            return \array_uintersect_assoc($this->_oldAttributes, $this->_attributes);
+        }
+        return $this->_attributes;
+    }
+
+
     /**
      * @param $value
      * @return $this
@@ -534,7 +546,7 @@ abstract class Model extends Component implements ModelInterface, ArrayAccess, \
             return TRUE;
         }
         $validate = $this->resolve($rule);
-        if (!$validate->validation()) {
+        if (!$validate->validation($this)) {
             return \Kiri::getLogger()->failure($validate->getError(), 'mysql');
         } else {
             return TRUE;
@@ -548,11 +560,14 @@ abstract class Model extends Component implements ModelInterface, ArrayAccess, \
      */
     private function resolve($rule): Validator
     {
-        $validate = Validator::instance($this->_attributes, $this);
+        $validate = new Validator();
         foreach ($rule as $val) {
             $field = array_shift($val);
-
-            $validate->make($field, $val);
+            if (is_string($field)) {
+                $validate->make($this, [$field], $val);
+            } else {
+                $validate->make($this, $field, $val);
+            }
         }
         return $validate;
     }
diff --git a/ModelInterface.php b/ModelInterface.php
index 3a94a3d..351a8f3 100644
--- a/ModelInterface.php
+++ b/ModelInterface.php
@@ -17,12 +17,12 @@ namespace Database;
 interface ModelInterface
 {
 
-	/**
-	 * @param array|string|int $param
-	 * @param null $db
-	 * @return ModelInterface|null
-	 */
-	public static function findOne(array|string|int $param, $db = NULL): ?static;
+    /**
+     * @param array|string|int $param
+     * @param null $db
+     * @return ModelInterface|null
+     */
+    public static function findOne(array|string|int $param, $db = NULL): ?static;
 
 
     /**
@@ -31,44 +31,75 @@ interface ModelInterface
     public function optimize(): mixed;
 
 
-	/**
-	 * @param int $param
-	 * @param null $db
-	 * @return ModelInterface|null
-	 */
-	public static function primary(int $param, $db = NULL): ?static;
+    /**
+     * @param int $param
+     * @param null $db
+     * @return ModelInterface|null
+     */
+    public static function primary(int $param, $db = NULL): ?static;
 
 
-	/**
-	 * @param array $data
-	 * @return static
-	 */
-	public static function populate(array $data): static;
+    /**
+     * @param array $data
+     * @return static
+     */
+    public static function populate(array $data): static;
 
 
-	/**
-	 * @return ActiveQuery
-	 * return a sql queryBuilder
-	 */
-	public static function query(): ActiveQuery;
+    /**
+     * @return ActiveQuery
+     * return a sql queryBuilder
+     */
+    public static function query(): ActiveQuery;
 
 
-	/**
-	 * @return ?string
-	 */
-	public function getPrimary(): ?string;
+    /**
+     * @return ?string
+     */
+    public function getPrimary(): ?string;
 
 
-	/**
-	 * @return string
-	 */
-	public function getTable(): string;
+    /**
+     * @return string
+     */
+    public function getTable(): string;
 
 
-	/**
-	 * @return Connection
-	 */
-	public function getConnection(): Connection;
+    /**
+     * @return Connection
+     */
+    public function getConnection(): Connection;
 
 
+    /**
+     * @param string $field
+     * @return mixed
+     */
+    public function getAttribute(string $field): mixed;
+
+    /**
+     * @param string $field
+     * @return mixed
+     */
+    public function getOldAttribute(string $field): mixed;
+
+
+    /**
+     * @param string $field
+     * @return mixed
+     */
+    public function setAttribute(string $field): mixed;
+
+    /**
+     * @param string $field
+     * @return mixed
+     */
+    public function setOldAttribute(string $field): mixed;
+
+
+    /**
+     * @return array
+     */
+    public function getChanges(): array;
+
 }