从山证v2.3.0拷贝
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吴方海
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using BaseOUDAL;
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using Newtonsoft.Json;
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using System.Collections.Concurrent;
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namespace YLErp.Modules.DataCacheModule
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{
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/// <summary>
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/// Represents a manager for caching between HTTP requests (long term caching)
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/// </summary>
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public class DBCacheManager
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{
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public const int CacheTimeout = 3 * 60;
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private List<string> TradeDetailReport = new List<string>() {
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CacheTable.CCEmail,CacheTable.TradeDetailsBiaoTou,CacheTable.TradeDetailsBiaoWei,
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CacheTable.TradeDetailsLuoKuan,CacheTable.TradeDetailsSendUser,CacheTable.TradeDerailsNeedAppendix
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};
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private List<string> TradeSwapDetailReport = new List<string>() {
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CacheTable.SwapCCEmail,CacheTable.TradeSwapDetailsBiaoTou,CacheTable.TradeSwapDetailsBiaoWei,
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CacheTable.TradeSwapDetailsLuoKuan,CacheTable.TradeSwapDetailsSendUser,CacheTable.TradeDerailsNeedAppendix
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};
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private List<string> ClientBalanceReport = new List<string>() {
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CacheTable.DingShiDesc,CacheTable.TradeMarketSheets,CacheTable.TradeMarketSendUser,
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CacheTable.LuoKuanDesc,CacheTable.MarginLuoKuanDesc,CacheTable.ClientBalanceReportTiltle,CacheTable.MarketCCEmail };
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public static readonly DBCacheManager Single;
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static DBCacheManager()
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{
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Single = new DBCacheManager();
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}
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readonly ConcurrentDictionary<string, CacheTable> _cacheDic;
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protected DBCacheManager()
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{
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_cacheDic = new ConcurrentDictionary<string, CacheTable>(StringComparer.OrdinalIgnoreCase);
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}
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ConcurrentDictionary<string, CacheTable> CacheDic
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{
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get
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{
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if (_cacheDic.Count < 1)
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{
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using (ErpBaseContext db = new ErpBaseContext())
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{
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var caches = db.CacheTable.Where(c => c.ValidateDate >= DateTime.Now).ToArray();
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foreach (var item in caches)
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{
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if (!string.IsNullOrEmpty(item.Key))
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{
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_cacheDic.TryAdd(item.Key + item.TemplateName, item);
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}
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}
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if (_cacheDic.Count < 1)
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{
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var item = new CacheTable()
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{
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Key = "$" + Guid.NewGuid().ToString()
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};
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_cacheDic.TryAdd(item.Key, item);
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}
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}
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}
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return _cacheDic;
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}
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}
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public string GetStr(string key, string template = "默认")
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{
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if (string.IsNullOrEmpty(key))
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{
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return string.Empty;
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}
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if (CacheDic.TryGetValue(key + template, out CacheTable ca))
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{
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return ca.Data;
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}
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using (ErpBaseContext db = new ErpBaseContext())
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{
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ca = db.CacheTable.FirstOrDefault(c => c.Key == key && c.TemplateName == template);
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if (ca == null)
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{
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return string.Empty;
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}
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CacheDic.AddOrUpdate(key + template, ca, (k, old) => ca);
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return ca.Data;
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}
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}
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public void UpdateObj(string key, string value, string template = "默认")
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{
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if (string.IsNullOrEmpty(key))
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{
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return;
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}
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using (ErpBaseContext db = new ErpBaseContext())
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{
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var caObj = db.CacheTable.FirstOrDefault(c => c.Key == key && c.TemplateName == template);
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if (caObj == null)
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{
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caObj = new CacheTable { Key = key, TemplateName = template, CreateDate = DateTime.Now };
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db.CacheTable.Add(caObj);
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}
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caObj.Data = value;
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caObj.ValidateDate = DateTime.Now.AddSeconds(CacheTimeout);
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db.SaveChanges();
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CacheDic.AddOrUpdate(key + template, caObj, (k, old) => caObj);
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}
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}
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/// <summary>
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/// Gets or sets the value associated with the specified key.
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/// </summary>
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/// <typeparam name="T">Type</typeparam>
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/// <param name="key">The key of the value to get.</param>
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/// <returns>The value associated with the specified key.</returns>
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public virtual T Get<T>(string key, string template = "默认") where T : new()
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{
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if (!string.IsNullOrEmpty(key) && CacheDic.TryGetValue(key + template, out CacheTable ca))
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{
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return JsonConvert.DeserializeObject<T>(ca.Data);
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}
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return new T();
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}
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/// <summary>
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/// Adds the specified key and object to the cache.
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/// </summary>
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/// <param name="key">key</param>
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/// <param name="data">Data</param>
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/// <param name="cacheTime">Cache time</param>
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public virtual void Set(string key, object data, int cacheTime = CacheTimeout, string template = "默认")
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{
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if (string.IsNullOrEmpty(key) || data == null)
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{
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return;
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}
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lock (CacheDic)
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{
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var dataStr = string.Empty;
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if (data == null)
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{
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dataStr = string.Empty;
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}
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else if (data is string str)
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{
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dataStr = str;
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}
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else
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{
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dataStr = JsonConvert.SerializeObject(data);
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}
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using (ErpBaseContext db = new ErpBaseContext())
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{
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var ca = db.CacheTable.FirstOrDefault(c => c.Key == key && c.TemplateName == template);
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if (ca == null)
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{
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ca = new CacheTable { Key = key, TemplateName = template, CreateDate = DateTime.Now };
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db.CacheTable.Add(ca);
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}
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ca.Data = dataStr;
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ca.ValidateDate = DateTime.Now.AddSeconds(cacheTime);
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db.SaveChanges();
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CacheDic.AddOrUpdate(key + template, ca, (k, old) => ca);
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}
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}
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}
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/// <summary>
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/// Gets a value indicating whether the value associated with the specified key is cached
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/// </summary>
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/// <param name="key">key</param>
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/// <returns>Result</returns>
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public virtual bool IsSet(string key, string template = "默认")
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{
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return !string.IsNullOrEmpty(key + template) && CacheDic.ContainsKey(key + template);
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}
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/// <summary>
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/// Removes the value with the specified key from the cache
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/// </summary>
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/// <param name="key">/key</param>
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public virtual void Remove(string key, string template = "默认")
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{
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if (string.IsNullOrEmpty(key))
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{
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return;
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}
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CacheDic.TryRemove(key, out CacheTable cacheTable);
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using (ErpBaseContext db = new ErpBaseContext())
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{
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db.CacheTable.Where(n => n.Key == key && n.TemplateName == template).ToArray()
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.Where(c => c.Key == key).ToList().ForEach(c =>
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{
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c.ValidateDate = DateTime.MinValue;
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});
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db.SaveChanges();
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}
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}
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public virtual List<string> GetTemplateNames(string reportType)
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{
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List<string> fliterList = new List<string>();
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switch (reportType)
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{
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case "交易明细": fliterList = TradeDetailReport; break;
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case "互换明细": fliterList = TradeSwapDetailReport; break;
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case "结算报告": fliterList = ClientBalanceReport; break;
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default:
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throw new ServiceException("错误的报告类型");
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}
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using (ErpBaseContext db = new ErpBaseContext())
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{
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return db.CacheTable.Where(o => fliterList.Contains(o.Key)).Select(o => o.TemplateName).Distinct().ToList();
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}
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}
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public virtual void RemoveTemplate(string reportType, string template)
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{
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List<string> fliterList = new List<string>();
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switch (reportType)
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{
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case "交易明细": fliterList = TradeDetailReport; break;
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case "互换明细": fliterList = TradeSwapDetailReport; break;
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case "结算报告": fliterList = ClientBalanceReport; break;
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default:
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throw new ServiceException("错误的报告类型");
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}
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using (ErpBaseContext db = new ErpBaseContext())
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{
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var needDel = db.CacheTable.Where(o => fliterList.Contains(o.Key) && o.TemplateName == template);
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if (needDel.Count() > 0)
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{
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db.CacheTable.RemoveRange(needDel);
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db.SaveChanges();
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}
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else
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{
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throw new ServiceException("不存在 " + needDel + " 模板");
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}
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}
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}
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}
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}
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