API - users refactoring

fittrackee/users/utils/admin.py

@@ -0,0 +1,12 @@
+from fittrackee import db
+
+from ..exceptions import UserNotFoundException
+from ..models import User
+
+
+def set_admin_rights(username: str) -> None:
+    user = User.query.filter_by(username=username).first()
+    if not user:
+        raise UserNotFoundException()
+    user.admin = True
+    db.session.commit()