Backup/Discuz.Forum/PaymentLogs.cs

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using System;
using System.Data;

using Discuz.Common;
using Discuz.Data;
using Discuz.Config;
using Discuz.Entity;
using Discuz.Common.Generic;

namespace Discuz.Forum
{
	/// <summary>
	/// 交易日志操作类
	/// </summary>
	public class PaymentLogs
	{
		/// <summary>
		/// 购买主题
		/// </summary>
		/// <param name="uid">用户id</param>
		/// <param name="tid">主题id</param>
		/// <param name="posterid">发帖者用户id</param>
		/// <param name="price">价格</param>
		/// <param name="netamount"></param>
		/// <returns></returns>
		public static int BuyTopic(int uid, int tid, int posterid, int price, float netamount)
		{
			int tmpprice = price;
            if (price > Scoresets.GetMaxIncPerTopic())
                tmpprice = Scoresets.GetMaxIncPerTopic();

            ShortUserInfo userInfo = Discuz.Data.Users.GetShortUserInfo(uid);
            if (userInfo == null)
				return -2;

            if (GetUserExtCredits(userInfo,Scoresets.GetTopicAttachCreditsTrans()) < price)
				return -1;

            Discuz.Data.Users.BuyTopic(uid, tid, posterid, price, netamount, Scoresets.GetTopicAttachCreditsTrans());
            UserCredits.UpdateUserCredits(uid);
			UserCredits.UpdateUserCredits(posterid);
            return Discuz.Data.PaymentLogs.CreatePaymentLog(uid, tid, posterid, price, netamount);			
		}

        /// <summary>
        /// 返回指定扩展积分
        /// </summary>
        /// <param name="userInfo">用户信息</param>
        /// <param name="extCreditsId">扩展积分ID</param>
        /// <returns></returns>
        private static float GetUserExtCredits(ShortUserInfo userInfo, int extCreditsId)
        {
            switch (extCreditsId)
            {
                case 1: return userInfo.Extcredits1;
                case 2: return userInfo.Extcredits2;
                case 3: return userInfo.Extcredits3;
                case 4: return userInfo.Extcredits4;
                case 5: return userInfo.Extcredits5;
                case 6: return userInfo.Extcredits6;