filter's fix

models/user_model.py

@@ -1,17 +1,23 @@
 from models.database import Database
 
-
 class UserModel:
-    def __init__(self, database: Database):
-        self.database = database
+    def __init__(self, database):
+        self.db = database
 
-    def authenticate(self, login: str, password: str):
-        query = """
-        SELECT u.user_id,
-               u.full_name,
-               r.role_name
+    def authenticate(self, login, password):
+        sql = """
+        SELECT u.login, u.password, u.full_name, r.role_name
         FROM users u
         JOIN roles r ON u.role_id = r.role_id
         WHERE u.login = %s AND u.password = %s
         """
-        return self.database.fetch_one(query, (login, password))
+        row = self.db.fetch_one(sql, (login, password))
+        if row:
+            return {
+                "login": row[0],
+                "password": row[1],
+                "full_name": row[2],
+                "role_name": row[3],
+            }
+        return None
+