private static Int32 DoAction <T>(this IEnumerable <T> list, Boolean?useTransition, Func <T, Int32> func, IEntitySession session) where T : IEntity
{
if (session == null)
{
throw new ArgumentNullException(nameof(session));
}
if (!list.Any())
{
return(0);
}
// 避免列表内实体对象为空
var entity = list.First(e => e != null);
if (entity == null)
{
return(0);
}
//var fact = entity.GetType().AsFactory();
//!!! SQLite 默认使用事务将会导致实体队列批量更新时大范围锁数据行，回归到由外部控制增加事务
//// SQLite 批操作默认使用事务，其它数据库默认不使用事务
//if (useTransition == null)
//{
// //session ??= fact.Session;
// useTransition = session.Dal.DbType == DatabaseType.SQLite;
//}
var count = 0;
if (useTransition != null && useTransition.Value)
{
using var trans = session.CreateTrans();
count = DoAction(list, func, count);
trans.Commit();
}
else
{
count = DoAction(list, func, count);
}
return(count);
}