/// <summary>获取被更改属性列表</summary>
/// <param name="entity">要跟踪的实体</param>
/// <param name="refer">用于参照的实体</param>
/// <param name="param">参数</param>
/// <returns>被更改的集合</returns>
public static List <Change> GetChanges(T entity, T refer, Parameters param = null)
{
var als = FastReflection.FastGetAccessors <T>();
var ls = new List <Change>(als.Count);
foreach (var a in als.Values)
{
if (param.IgnoreVirtual && a.IsVirtual)
{
continue;
}
if (!a.CanRade)
{
continue;
}
var v1 = a.GetValue(entity);
var v2 = a.GetValue(refer);
if (!AreEqual(v1, v2))
{
ls.Add(new Change {
Name = a.Name, OldValue = v1, NewValue = v2
});
}
}
return(ls);
}
/// <summary>克隆对象</summary>
/// <typeparam name="T">对象类型</typeparam>
/// <param name="obj">要克隆的对象</param>
/// <returns>新对象</returns>
public static T Clone_ <T>(this T obj)
{
if (obj == null)
{
return(default(T));
}
var type = obj.GetType();
if (type.IsValueType)
{
return(obj);
}
var id = obj as IDictionary;
if (id != null)
{
return((T)CloneDict(id));
}
var il = obj as IList;
if (il != null)
{
return((T)CloneList(il));
}
var ic = obj as ICloneable;
if (ic != null)
{
return((T)ic.Clone());
}
var newObj = FastReflection.FastInvoke <T>();
var ls = FastReflection.FastGetAccessors(type);
foreach (var a in ls.Values)
{
if (!a.CanRade || !a.CanWrite)
{
continue;
}
a.SetValue(newObj, Clone_(a.GetValue(obj)));
}
return(newObj);
}