public void AddBuying(BuyingAddDto buyingInfo)
{
#region Sql-Запрос.
/*declare @CommentId uniqueidentifier
if @Comment is not null and rtrim(@Comment) <> ''
begin
set @CommentId = newid()
end
insert into Buying (Id, Goods, Priority, InputDate, Comment)
values (newid(), @Goods, @Priority, getdate(), @CommentId)
if @CommentId is not null
begin
insert into Comments(Id, Description)
values (@CommentId, @Comment)
end*/
#endregion
using (EFUnitOfWork uow = new EFUnitOfWork("GoodsBuyingConnectionString"))
using (var transaction = uow.BeginTransaction())
{
// Если комментарий есть, добавим его сначала.
Comments comment = null;
if (!string.IsNullOrWhiteSpace(buyingInfo.Comment))
{
comment = new Comments { Description = buyingInfo.Comment };
uow.Comments.Create(comment);
uow.Save();
}
Dal.Entities.Buying buying = new Dal.Entities.Buying
{
Goods = buyingInfo.Goods,
Priority = buyingInfo.Priority,
Comment = comment != null ? comment.Id : (Guid?)null
};
uow.Buyings.Create(buying);
// Обновим дату синхронизации.
UpdateSyncDate(uow);
uow.Save();
transaction.Commit();
}
}
public void AddGoods(GoodsAddDto goodsInfo)
{
#region Sql-запрос.
/*if not exists(select 1 from Goods where Name = @Name)
begin
insert into Goods (Id, Name) values (newid(), @Name)
end*/
#endregion
using (EFUnitOfWork uow = new EFUnitOfWork("GoodsBuyingConnectionString"))
using (var transaction = uow.BeginTransaction())
{
if (uow.Goods.GetAll().Where(v => v.Name == goodsInfo.Name).Count() == 0)
{
Goods goods = new Goods { Name = goodsInfo.Name };
uow.Goods.Create(goods);
uow.Save();
}
transaction.Commit();
}
}
public void ChangeGoods(GoodsChangeDto goodsInfo)
{
#region Sql-запрос.
/*if exists(select 1 from Goods where Id = @Id)
begin
update Goods
set
Name = @Name
where Id = @Id
end*/
#endregion
using (EFUnitOfWork uow = new EFUnitOfWork("GoodsBuyingConnectionString"))
using (var transaction = uow.BeginTransaction())
{
Goods goods = uow.Goods.Get(goodsInfo.Id);
if (goods != null)
{
goods.Name = goodsInfo.NewName;
uow.Save();
}
transaction.Commit();
}
}
public void DeleteGoods(Guid id)
{
#region Sql-Запрос.
/*if exists(select 1 from Goods where Id = @Id)
and not exists(select 1 from Buying where Goods = @Id)
begin
delete from Goods
where Id = @Id
end*/
#endregion
using (EFUnitOfWork uow = new EFUnitOfWork("GoodsBuyingConnectionString"))
using (var transaction = uow.BeginTransaction())
{
Goods goods = uow.Goods.Get(id);
var checkBuying = uow.Buyings.GetAll().FirstOrDefault(v => v.Goods == id);
if (goods != null && checkBuying == null)
{
uow.Goods.Delete(goods.Id);
uow.Save();
}
transaction.Commit();
}
}
public void DeleteBuying(Guid id)
{
#region Sql-Запрос.
/*delete from Buying where Id = cast(@Id as uniqueidentifier)
delete Comments
from Comments
left join Buying on Comments.Id = Buying.Comment
where Buying.Id is null*/
#endregion
using (EFUnitOfWork uow = new EFUnitOfWork("GoodsBuyingConnectionString"))
using (var transaction = uow.BeginTransaction())
{
// Удаление из таблицы покупок.
uow.Buyings.Delete(id);
// Обновим дату синхронизации.
UpdateSyncDate(uow);
uow.Save();
// Удаление из таблицы комментариев.
// Используем неотложенную операцию.
var deleteComments = (from c in uow.Comments.GetAll()
join b in uow.Buyings.GetAll() on c.Id equals b.Comment into leftBuyings
from subBuying in leftBuyings.DefaultIfEmpty()
where subBuying == null
select c.Id).ToArray();
if (deleteComments.Count() > 0)
{
foreach (var c in deleteComments)
{
uow.Comments.Delete(c);
}
uow.Save();
}
transaction.Commit();
}
}
