Set user.sender_format_updated_at when user updates sender_format

app/api/views/setting.py

@@ -1,3 +1,4 @@
+import arrow
 from flask import jsonify, g, request
 
 from app.api.base import api_bp, require_api_auth
@@ -68,6 +69,7 @@ def update_setting():
             return jsonify(error="Invalid sender_format"), 400
 
         user.sender_format = SenderFormatEnum.get_value(sender_format)
+        user.sender_format_updated_at = arrow.now()
 
     if "random_alias_default_domain" in data:
         default_domain = data["random_alias_default_domain"]

app/dashboard/views/setting.py

@@ -238,6 +238,7 @@ def setting():
             sender_format = int(request.form.get("sender-format"))
             if SenderFormatEnum.has_value(sender_format):
                 current_user.sender_format = sender_format
+                current_user.sender_format_updated_at = arrow.now()
                 db.session.commit()
                 flash("Your sender format preference has been updated", "success")
             db.session.commit()