using System;
using System.ComponentModel;
using NewLife.Collections;
using NewLife.Web;
using XCode;
using XCode.Cache;
namespace NewLife.CommonEntity
{
/// <summary>日志</summary>
public partial class Log<TEntity> : Entity<TEntity> where TEntity : Log<TEntity>, new()
{
#region 对象操作
/// <summary>已重载。记录当前管理员</summary>
/// <param name="isNew"></param>
public override void Valid(bool isNew)
{
base.Valid(isNew);
if (isNew)
{
// 自动设置当前登录用户
if (!Dirtys[__.UserID] && !Dirtys[__.UserName])
{
var user = ManageProvider.Provider.Current;
if (user != null)
{
if (!Dirtys[__.UserID]) UserID = (Int32)user.ID;
if (!Dirtys[__.UserName]) UserName = user.ToString();
}
}
// 自动设置IP地址
if (!Dirtys[__.IP])
{
//IP = WebHelper.UserHost;
var ip = WebHelper.UserHost;
if (!String.IsNullOrEmpty(ip)) IP = ip;
}
// 自动设置当前时间
if (!Dirtys[__.OccurTime] && HasDirty) OccurTime = DateTime.Now;
}
// 处理过长的备注
if (!String.IsNullOrEmpty(Remark) && Remark.Length > 500)
{
Remark = Remark.Substring(0, 500);
}
}
#endregion
#region 扩展属性
#endregion
#region 扩展查询
/// <summary>查询</summary>
/// <param name="key"></param>
/// <param name="adminid"></param>
/// <param name="category"></param>
/// <param name="start"></param>
/// <param name="end"></param>
/// <param name="orderClause"></param>
/// <param name="startRowIndex"></param>
/// <param name="maximumRows"></param>
/// <returns></returns>
[DataObjectMethod(DataObjectMethodType.Select, false)]
public static EntityList<TEntity> Search(String key, Int32 adminid, String category, DateTime start, DateTime end, String orderClause, Int32 startRowIndex, Int32 maximumRows)
{
if (String.IsNullOrEmpty(orderClause)) orderClause = _.ID.Desc();
return FindAll(SearchWhere(key, adminid, category, start, end), orderClause, null, startRowIndex, maximumRows);
}
/// <summary>查询</summary>
/// <param name="key"></param>
/// <param name="adminid"></param>
/// <param name="category"></param>
/// <param name="start"></param>
/// <param name="end"></param>
/// <param name="orderClause"></param>
/// <param name="startRowIndex"></param>
/// <param name="maximumRows"></param>
/// <returns></returns>
public static Int32 SearchCount(String key, Int32 adminid, String category, DateTime start, DateTime end, String orderClause, Int32 startRowIndex, Int32 maximumRows)
{
String where = SearchWhere(key, adminid, category, start, end);
return FindCount(where, null, null, 0, 0);
}
/// <summary>查询</summary>
/// <param name="key"></param>
/// <param name="adminid"></param>
/// <param name="category"></param>
/// <param name="start"></param>
/// <param name="end"></param>
/// <returns></returns>
public static String SearchWhere(String key, Int32 adminid, String category, DateTime start, DateTime end)
{
var exp = new WhereExpression();
if (!String.IsNullOrEmpty(key)) exp &= (_.Action == key | _.Remark.Contains(key));
if (!String.IsNullOrEmpty(category) && category != "全部") exp &= _.Category == category;
if (adminid > 0) exp &= _.UserID == adminid;
if (start > DateTime.MinValue) exp &= _.OccurTime >= start;
if (end > DateTime.MinValue) exp &= _.OccurTime < end.Date.AddDays(1);
return exp;
}
#endregion
#region 扩展操作
static EntityCache<TEntity> _categoryCache;
/// <summary>类别名实体缓存，异步，缓存10分钟</summary>
static EntityCache<TEntity> CategoryCache
{
get
{
if (_categoryCache == null)
{
// 缓存查询所有类别名，并缓存10分钟，缓存过期时将使用异步查询，不影响返回速度
_categoryCache = new EntityCache<TEntity>();
_categoryCache.Asynchronous = true;
_categoryCache.Expriod = 10 * 60;
_categoryCache.FillListMethod = delegate { return FindAll("1=1 Group By " + _.Category, null, _.Category, 0, 0); };
}
return _categoryCache;
}
}
/// <summary>查找所有类别名</summary>
/// <returns></returns>
[DataObjectMethod(DataObjectMethodType.Select, false)]
public static EntityList<TEntity> FindAllCategory()
{
return CategoryCache.Entities;
}
#endregion
#region 业务
/// <summary>创建日志</summary>
/// <param name="category"></param>
/// <param name="action"></param>
/// <returns></returns>
public static TEntity Create(String category, String action)
{
var entity = new TEntity();
entity.Category = category;
entity.Action = action;
return entity;
}
/// <summary>创建日志</summary>
/// <param name="type">类型</param>
/// <param name="action"></param>
/// <returns></returns>
public static TEntity Create(Type type, String action)
{
String name = GetDescription(type);
if (String.IsNullOrEmpty(name)) name = type.Name;
return Create(name, action);
}
/// <summary>创建</summary>
/// <param name="type"></param>
/// <param name="action"></param>
/// <returns></returns>
ILog ILog.Create(Type type, String action) { return Create(type, action); }
static DictionaryCache<Type, String> desCache = new DictionaryCache<Type, string>();
/// <summary>获取实体类的描述名</summary>
/// <param name="type">类型</param>
/// <returns></returns>
static String GetDescription(Type type)
{
return desCache.GetItem(type, delegate(Type key)
{
if (!typeof(IEntity).IsAssignableFrom(key)) return null;
var att = AttributeX.GetCustomAttribute<BindColumnAttribute>(key, true);
if (att != null && !String.IsNullOrEmpty(att.Description)) return att.Description;
var att2 = AttributeX.GetCustomAttribute<DescriptionAttribute>(key, true);
if (att2 != null && !String.IsNullOrEmpty(att2.Description)) return att2.Description;
return null;
});
}
/// <summary>写日志</summary>
/// <param name="type">类型</param>
/// <param name="action">操作</param>
/// <param name="remark">备注</param>
public void WriteLog(Type type, String action, String remark)
{
var log = Create(type, action);
if (log != null)
{
log.Remark = remark;
log.Save();
}
}
/// <summary>已重载。</summary>
/// <returns></returns>
public override string ToString()
{
return String.Format("{0} {1} {2} {3:yyyy-MM-dd HH:mm:ss} {4}", Category, Action, UserName, OccurTime, Remark);
}
#endregion
}
public partial interface ILog
{
/// <summary>创建</summary>
/// <param name="type"></param>
/// <param name="action"></param>
/// <returns></returns>
ILog Create(Type type, String action);
/// <summary>写日志</summary>
/// <param name="type">类型</param>
/// <param name="action">操作</param>
/// <param name="remark">备注</param>
void WriteLog(Type type, String action, String remark);
/// <summary>保存</summary>
/// <returns></returns>
Int32 Save();
}
}
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