/// <summary>
/// 对比两个实例的属性值,如果目标实例属性的值和源实例属性的值不相等,则将源实例属性的值赋给目标实体的属性
/// </summary>
/// <typeparam name="T">泛型对象</typeparam>
/// <param name="distObject">目标实例</param>
/// <param name="sourceObject">源实例</param>
/// <param name="modifiedRoot"></param>
/// <param name="ignoreProperties">需要忽略的属性值(被忽略的属性将不会把源实例的属性数据赋给目标实例的属性)</param>
/// <returns></returns>
public static T CompareObject <T>(this T distObject, T sourceObject, out EntityModifiedTracker modifiedRoot, string[] ignoreProperties = null)
{
modifiedRoot = new EntityModifiedTracker();
var disType = distObject.GetType();
var disProps = disType.GetProperties();
var sourceType = sourceObject.GetType();
var sourceProps = sourceType.GetProperties();
foreach (var disProp in disProps)
{
if (ignoreProperties != null && ignoreProperties.Length > 0 && ignoreProperties.Contains(disProp.Name))
{
continue;
}
if (sourceProps.All(x => x.Name != disProp.Name))
{
continue;
}
var disValue = disProp.GetValue(distObject, null);
var sourceValue = sourceType.GetProperty(disProp.Name).GetValue(sourceObject, null);
if (disValue == null && sourceValue == null)
{
continue;
}
if (disValue == null)
{
disProp.SetValue(distObject, sourceValue, null);
modifiedRoot.Add(new Modified
{
PropertyName = disProp.Name,
OldValue = null,
NewValue = sourceValue
});
disProp.SetValue(distObject, sourceValue, null);
continue;
}
if (!disValue.Equals(sourceValue))
{
modifiedRoot.Add(new Modified
{
PropertyName = disProp.Name,
OldValue = disValue,
NewValue = sourceValue
});
disProp.SetValue(distObject, sourceValue, null);
}
}
return(distObject);
}
/// <summary>
/// 对比两个实例的属性值,如果目标实例属性的值和源实例属性的值不相等,则将源实例属性的值赋给目标实体的属性
/// </summary>
/// <typeparam name="T">泛型对象</typeparam>
/// <param name="distObject">目标实例[原始值]</param>
/// <param name="sourceObject">源实例[修改后的值]</param>
/// <param name="ignoreProperties">需要忽略的属性值(被忽略的属性将不会把源实例的属性数据赋给目标实例的属性)</param>
/// <returns></returns>
public static EntityModifiedTracker GetModifiedTracker <T>(this T distObject, T sourceObject, string[] ignoreProperties = null)
{
var mod = new EntityModifiedTracker();
var disType = distObject.GetType();
var disProps = disType.GetProperties();
var sourceType = sourceObject.GetType();
var sourceProps = sourceType.GetProperties();
foreach (var disProp in disProps)
{
var attr = (EntityTrackerAttribute)disProp.GetCustomAttribute(typeof(EntityTrackerAttribute), false);
if (attr != null && attr.Ignore)
{
var ignore = attr.Ignore;
continue;
}
if (ignoreProperties != null && ignoreProperties.Length > 0 && ignoreProperties.Contains(disProp.Name))
{
continue;
}
if (sourceProps.All(x => x.Name != disProp.Name))
{
continue;
}
var disValue = disProp.GetValue(distObject, null);
var sourceValue = sourceType.GetProperty(disProp.Name).GetValue(sourceObject, null);
if (disValue == null && sourceValue == null)
{
continue;
}
if (disValue.Equals(sourceValue))
{
continue;
}
var c = new Modified
{
PropertyName = disProp.Name,
OldValue = disValue,
NewValue = sourceValue
};
if (attr != null && !string.IsNullOrEmpty(attr.Label))
{
c.Label = attr.Label;
}
mod.Add(c);
}
return(mod);
}