issues.py 文件源码

def put(self, issue_id, username):
        if not current_user.is_authenticated:
            return abort(401, message='permission denied')
        issue = issues_service.get(issue_id)
        if issue is None:
            return abort(400, message='issue not found')
        user = users_service.get_by_username(username)
        if user is None:
            return abort(400, message='user not found')
        args = self.parser.parse_args()
        action = args.get('action')
        action = 'upvote' if action is None else action
        value = -1 if action == 'downvote' else 1
        voter = voters_service.get(user, issue)
        if voter is None:
            if current_user.points - points.VOTE < 0:
                return abort(403, message='points are not enough')
            current_user.points -= points.VOTE
            log = PointLog(action, points.VOTE, user, issue)
            voter = Voter(user, issue)
            db.session.add(voter)
            db.session.add(log)
            issue.points += value
        elif voter.value != value:
            issue.points += value
            voter.value = value
        else:
            return voter
        try:
            db.session.commit()
        except:
            db.session.rollback()
            return abort(500, message='operation failed')
        return voter