def add_approval_date(request: Request, lookup: dict):
"""
When a user's role is set for the first time, also set their approval date.
"""
user_patch = request.json
if "role" in user_patch:
user_id = request.view_args["id"]
user_record = Users.find_by_id(user_id)
if user_record.role is None:
request.json["approval_date"] = datetime.now()
