如何向Flask论坛网站添加发帖限制？

from functools import wraps
from flask import request, abort

def post_limit(func):
    @wraps(func)
    def decorated_function(*args, **kwargs):
        # 检查用户是否达到发帖限制的条件
        if check_post_limit(request.user):
            abort(403)  # 如果达到限制，返回403错误
        return func(*args, **kwargs)
    return decorated_function

@app.route('/create_post', methods=['POST'])
@post_limit
def create_post():
    # 处理发帖请求的逻辑
    pass

from datetime import datetime, timedelta

def check_post_limit(user):
    # 获取当前用户的发帖数量
    post_count = get_post_count(user)

    # 获取当前日期和时间
    now = datetime.now()

    # 获取当天的起始时间
    today_start = now.replace(hour=0, minute=0, second=0, microsecond=0)

    # 获取当天剩余的时间
    remaining_time = today_start + timedelta(days=1) - now

    # 检查发帖数量是否超过限制
    if post_count >= 5:
        return True

    return False