/// <summary>
/// 把一个实体数据拷贝到另一个实体
/// </summary>
/// <param name="dataEntity"></param>
/// <param name="newEntity"></param>
/// <param name="copyHandler"></param>
/// <param name="clearPrimaryKeyValue"></param>
/// <param name="onlyDbProperty"></param>
/// <param name="onlyDirtyProperty"></param>
public static void CopyData(this IDataEntityBase dataEntity, IDataEntityBase newEntity, Func <string, string, bool> copyHandler = null, bool clearPrimaryKeyValue = false, bool onlyDbProperty = false, bool onlyDirtyProperty = false)
{
IDataEntityType dataEntityType = dataEntity.GetDataEntityType();
IDataEntityType type2 = newEntity.GetDataEntityType();
if (copyHandler == null)
{
copyHandler = (dtName, propName) => true;
}
IEnumerable <IDataEntityProperty> dirtyProperties = dataEntityType.GetDirtyProperties(dataEntity);
foreach (ISimpleProperty property in type2.Properties.GetSimpleProperties(onlyDbProperty))
{
if (copyHandler(type2.Name, property.Name))
{
IDataEntityProperty dpOldProperty = null;
TryGetOldProperty(property, dataEntityType, out dpOldProperty);
if ((!onlyDirtyProperty || dirtyProperties.Contains <IDataEntityProperty>(dpOldProperty)) && !(property.IsReadOnly || (dpOldProperty == null)))
{
property.SetValue(newEntity, dpOldProperty.GetValue(dataEntity));
}
}
}
if (clearPrimaryKeyValue)
{
ISimpleProperty primaryKey = type2.PrimaryKey;
if (primaryKey != null)
{
primaryKey.ResetValue(newEntity);
}
type2.SetDirty(newEntity, true);
}
foreach (IComplexProperty property4 in type2.Properties.GetComplexProperties(onlyDbProperty))
{
IDataEntityProperty property5 = null;
TryGetOldProperty(property4, dataEntityType, out property5);
IDataEntityBase base2 = property5.GetValue(dataEntity) as IDataEntityBase;
if (base2 != null)
{
IDataEntityBase base3;
if (property4.IsReadOnly)
{
base3 = property4.GetValue(newEntity) as IDataEntityBase;
if (base3 == null)
{
throw new ORMDesignException("??????", ResManager.LoadKDString("哦，真不幸，只读的属性却返回了NULL值。", "014009000001633", SubSystemType.SL, new object[0]));
}
base2.CopyData(base3, copyHandler, false, onlyDbProperty, false);
}
else
{
base3 = property4.ComplexPropertyType.CreateInstance() as IDataEntityBase;
base2.CopyData(base3, copyHandler, clearPrimaryKeyValue, onlyDbProperty, false);
property4.SetValue(newEntity, base3);
}
}
}
foreach (ICollectionProperty property6 in type2.Properties.GetCollectionProperties(onlyDbProperty))
{
IDataEntityProperty property7 = null;
TryGetOldProperty(property6, dataEntityType, out property7);
object obj2 = property7.GetValue(dataEntity);
if (obj2 != null)
{
IEnumerable enumerable2 = obj2 as IEnumerable;
if (enumerable2 == null)
{
throw new ORMDesignException("??????", ResManager.LoadKDString("哦，真不幸，集合的属性返回值不支持枚举。", "014009000001634", SubSystemType.SL, new object[0]));
}
object obj3 = property6.GetValue(newEntity);
if (obj3 == null)
{
if (property6.IsReadOnly)
{
throw new ORMDesignException("??????", ResManager.LoadKDString("哦，真不幸，集合的属性返回值为null。", "014009000001635", SubSystemType.SL, new object[0]));
}
obj3 = Activator.CreateInstance(property6.PropertyType);
property6.SetValue(newEntity, obj3);
}
IList list = obj3 as IList;
if (list == null)
{
throw new ORMDesignException("??????", ResManager.LoadKDString("哦，真不幸，集合的属性返回值不支持IList。", "014009000001636", SubSystemType.SL, new object[0]));
}
list.Clear();
foreach (IDataEntityBase base4 in enumerable2)
{
IDataEntityBase base5 = property6.CollectionItemPropertyType.CreateInstance() as IDataEntityBase;
base4.CopyData(base5, copyHandler, clearPrimaryKeyValue, onlyDbProperty, false);
list.Add(base5);
}
}
}
}
