private void Save <TId>(TRootEntity rootEntity, out TId lastId, SaveMode saveMode)
{
if (rootEntity == null)
{
throw new ArgumentException("rootEntity is null.");
}
if (_queryOptions.Transaction == null)
{
throw new InvalidOperationException("Transaction is null.");
}
Map <TRootEntity> map = new Map <TRootEntity>(_queryOptions);
_setMap(map);
lastId = default(TId);
_databaseAccessor.BeginSave();
List <Row> updateRows = GetRows(rootEntity, map);
if (saveMode == SaveMode.Insert)
{
_databaseAccessor.Insert(updateRows.First(), _queryOptions, out object lastIdObj);
if (lastIdObj != null)
{
lastId = (TId)Convert.ChangeType(lastIdObj, typeof(TId));
}
foreach (var updateRow in updateRows.Skip(1))
{
_databaseAccessor.Insert(updateRow, _queryOptions, out lastIdObj);
}
return;
}
List <TRootEntity> currentEntityList = Fetch().ToList();
if (currentEntityList.Count == 0)
{
throw new InvalidOperationException("not exists current entity.");
}
if (currentEntityList.Count != 1)
{
throw new InvalidOperationException("1 or more current entities.");
}
List <Row> currentRows = GetRows(currentEntityList.First(), map);
if (currentRows.First().Id != updateRows.First().Id)
{
throw new InvalidOperationException("not match primary values of current entity.");
}
Dictionary <string, Row> currentRowMap = currentRows.ToDictionary(x => x.Id);
Dictionary <string, Row> updateRowMap = updateRows.ToDictionary(x => x.Id);
if (saveMode == SaveMode.Update)
{
_databaseAccessor.Update(updateRows.First(), _queryOptions);
foreach (var updateRow in updateRows.Skip(1))
{
string id = updateRow.Id;
if (currentRowMap.ContainsKey(updateRow.Id))
{
_databaseAccessor.Update(updateRow, _queryOptions);
}
else
{
_databaseAccessor.Insert(updateRow, _queryOptions, out object lastIdObj);
}
}
foreach (var currentRow in currentRows.Skip(1))
{
if (updateRowMap.ContainsKey(currentRow.Id))
{
continue;
}
_databaseAccessor.Delete(currentRow, _queryOptions);
}
}
else
{
foreach (var updateRow in updateRows)
{
_databaseAccessor.Delete(updateRow, _queryOptions);
}
}
}