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- 修复 DbContext/Repository SaveMany 一对多保存时删除条件 bug；

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This commit is contained in:
28810
2020-03-06 00:15:35 +08:00
parent fa3aa8ec83
commit b45360bfbe
3 changed files with 35 additions and 3 deletions
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17
FreeSql.DbContext/DbSet/DbSetAsync.cs
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@@ -158,10 +158,25 @@ namespace FreeSql
if (tref.RefType == Internal.Model.TableRefType.OneToMany)
{
await DbContextExecCommandAsync();
//删除没有保存的数据
//删除没有保存的数据，求出主体的条件
var deleteWhereParentParam = Expression.Parameter(typeof(object), "a");
Expression whereParentExp = null;
for (var colidx = 0; colidx < tref.Columns.Count; colidx++)
{
var whereExp = Expression.Equal(
Expression.MakeMemberAccess(Expression.Convert(deleteWhereParentParam, tref.RefEntityType), tref.RefColumns[colidx].Table.Properties[tref.RefColumns[colidx].CsName]),
Expression.Constant(
FreeSql.Internal.Utils.GetDataReaderValue(
tref.Columns[colidx].CsType,
_db.Orm.GetEntityValueWithPropertyName(_table.Type, item, tref.Columns[colidx].CsName)), tref.RefColumns[colidx].CsType)
);
if (whereParentExp == null) whereParentExp = whereExp;
else whereParentExp = Expression.AndAlso(whereParentExp, whereExp);
}
var propValEach = GetItemValue(item, prop) as IEnumerable;
await _db.Orm.Delete<object>().AsType(tref.RefEntityType)
.WithTransaction(_uow?.GetOrBeginTransaction())
.Where(Expression.Lambda<Func<object, bool>>(whereParentExp, deleteWhereParentParam))
.WhereDynamic(propValEach, true).ExecuteAffrowsAsync();
}
}