/// <summary>
/// Betch insert
/// </summary>
/// <typeparam name="T">Entity</typeparam>
/// <param name="list">Entity list</param>
/// <param name="isIdAutoGrow">Is id auto grow?</param>
/// <param name="trans">Transaction</param>
public virtual void Save <T>(List <T> list, bool isIdAutoGrow = true, DbTransaction trans = null) where T : Entity
{
var sql = new StringBuilder();
var typeName = typeof(T).FullName;
var pk = IntrospectionManager.GetPrimaryMemberName(typeName);
var setValue = IntrospectionManager.GetSetDelegate(typeName);
var isNeedCommit = false;
var isSupportBatch = ProviderManager.GetProvider(ProviderName).IsSupportBatch;
if (isSupportBatch && ProviderName != DataBaseNames.Oracle)
{
sql.Append(ProviderManager.GetProvider(ProviderName).BatchBegin);
}
else if (trans == null)
{
var conn = NativeSql.GetConn();
conn.Open();
trans = conn.BeginTransaction();
isNeedCommit = true;
}
foreach (var item in list)
{
item.Key = Key;
var sqlT = item.GetSaveSql(isIdAutoGrow);
if (isSupportBatch && ProviderName != DataBaseNames.Oracle)
{
sql.Append(sqlT);
if (isIdAutoGrow)
{
sql.Append(item.GetLastInsertIdSql());
}
}
else
{
if (ProviderName == DataBaseNames.Oracle)
{
sqlT = sqlT.Remove(sqlT.LastIndexOf(";"), 1);
}
NativeSql.ExecuteNonQuery(trans, sqlT);
if (isIdAutoGrow)
{
object idValue = NativeSql.ExecuteScalar(trans, item.GetLastInsertIdSql());
if (idValue != null)
{
var pkType = IntrospectionManager.GetPrimaryKeyType(typeName);
setValue(item, pk, idValue.ChangeType(pkType));
}
}
}
}
if (isSupportBatch && ProviderName != DataBaseNames.Oracle)
{
sql.Append(ProviderManager.GetProvider(ProviderName).BatchEnd);
DataSet ds;
if (trans == null)
{
ds = NativeSql.ExecuteDataSet(sql.ToString());
}
else
{
ds = NativeSql.ExecuteDataSet(trans, sql.ToString());
}
if (isIdAutoGrow)
{
var pkType = IntrospectionManager.GetPrimaryKeyType(typeName);
for (int i = 0; i < list.Count; i++)
{
object idValue = ds.Tables[i].Rows[0][0];
setValue(list[i], pk, idValue.ChangeType(pkType));
}
}
}
if (!isSupportBatch && isNeedCommit)
{
var conn = trans.Connection;
trans.Commit();
trans.Dispose();
conn.Close();
conn.Dispose();
}
}