public MassPriceChangeTask StartChangePriceTask(MassPriceChange change)
{
if (change.Increase == false && change.Value >= 100)
{
throw new Exception("Нельзя уменьшить стоимость более чем на 99 процентов");
}
if (change.Value <= 0)
{
throw new Exception("Процент должен быть положительным числом больше 0");
}
int taskId;
var task = new MassPriceChangeTask()
{
Comment = change.Comment,
CreationDate = DateTime.UtcNow,
Description = change.GetDescription(),
State = MassPriceChangeTaskState.Processed
};
var rec = Mapper.Map <Data.Models.MassPriceChangeTask>(task);
taskId = task.TaskId = _massPriceChangeTaskGateway.Insert(rec);
Task t = new Task(() => ChangePrice(change, taskId));
t.Start();
return(task);
}
public ResultModel ChangePrice(MassPriceChange change)
{
try
{
var task = _massChangeService.StartChangePriceTask(change);
return(new ResultModel(true, task));
}
catch (Exception e)
{
return(new ResultModel(false, e.Message));
}
}
private void ChangePrice(MassPriceChange change, int taskId)
{
using (var scope = new TransactionScope())
{
var filter = change.Filter;
{
try
{
IList <GoodsItem> goods;
int total;
FilterCollections filterCollections;
goods = _shopService.GetGoodsSet(filter, 1, int.MaxValue, out total, out filterCollections, false);
foreach (var goodsItem in goods)
{
decimal dt = goodsItem.Price * change.Value / 100m;
decimal val = change.Increase ? goodsItem.Price + dt : goodsItem.Price - dt;
goodsItem.Price = Math.Round(val, 0, MidpointRounding.AwayFromZero);
foreach (var pack in goodsItem.Packs)
{
if (!pack.Price.HasValue)
{
continue;
}
dt = pack.Price.Value * change.Value / 100m;
val = change.Increase ? pack.Price.Value + dt : pack.Price.Value - dt;
pack.Price = Math.Round(val, 0, MidpointRounding.AwayFromZero);
}
_shopService.UpdateGoods(goodsItem);
}
var task = _massPriceChangeTaskGateway.SelectOne(taskId);
task.State = MassPriceChangeTaskState.Completed.ToString();
_massPriceChangeTaskGateway.Update(task);
scope.Complete();
}
catch (Exception e)
{
var task = _massPriceChangeTaskGateway.SelectOne(taskId);
_logService.LogError(e);
task.State = MassPriceChangeTaskState.Error.ToString();
}
}
}
}
