/// <summary>
/// 转移移除的列表到当前集合中。
/// </summary>
/// <param name="source"></param>
void IEntitySetInternalExtension.ShiftDetachedList(IEntitySetInternalExtension source)
{
foreach (var item in source.GetDetachedList())
{
detachedList.Add((TEntity)item);
}
}
private static void FillDataTableRows(DataTable table, IEntitySetInternalExtension extendList, IList <IProperty> properties, bool hasPrmKey)
{
FillDataTableRows(table, extendList.GetAttachedList(), properties, hasPrmKey, EntityState.Attached);
FillDataTableRows(table, extendList.GetModifiedList(), properties, hasPrmKey, EntityState.Modified);
FillDataTableRows(table, extendList.GetDetachedList(), properties, hasPrmKey, EntityState.Detached);
extendList.Reset();
}
/// <summary>
/// 检查返回的实体集的值是否为空值。
/// </summary>
/// <param name="entitySet"></param>
/// <param name="value"></param>
/// <returns></returns>
internal static PropertyValue CheckReturnEntitySetValue(IEntitySetInternalExtension entitySet, PropertyValue value)
{
//实体集的 SetClearFlag 为true，认为是设置为 null
//var product = new Product ();
//product.Orders = null;
//此时可以将整个实体集清空
return(entitySet != null && entitySet.IsNeedClear ? null : value);
}
private void Save(IEntitySetInternalExtension entitySet)
{
foreach (IEntity entity in entitySet.GetAttachedList())
{
Create(entity);
}
foreach (IEntity entity in entitySet.GetModifiedList())
{
Update(entity);
}
var fakePro = EntityMetadataUnity.GetEntityMetadata(entitySet.EntityType).DeleteProperty;
foreach (IEntity entity in entitySet.GetDetachedList())
{
Remove(entity, fakePro);
}
entitySet.Reset();
}
