public override async Task <int> HandleCommand(UpdateCommand request, CancellationToken cancellationToken)
{
if (request.Caption == null || request.Caption.Id == 0)
{
throw new BusinessException("Caption.NotExisted");
}
var caption = await languageQueries.GetCaption(request.Caption.Id);
if (caption == null)
{
throw new BusinessException("Caption.NotExisted");
}
var rs = -1;
using (var conn = DALHelper.GetConnection())
{
conn.Open();
using (var trans = conn.BeginTransaction())
{
try
{
languageRepository.JoinTransaction(conn, trans);
caption.Type = request.Caption.Type;
caption.DefaultCaption = request.Caption.DefaultCaption;
caption.Languages = request.Caption.Languages;
if (await languageRepository.UpdateCaption(caption) != 0)
{
return(rs);
}
await languageRepository.DeleteCaptionLanguages(caption.Id);
foreach (var language in caption.Languages)
{
if (await languageRepository.AddCaptionLanguage(language) == 0)
{
return(rs);
}
}
rs = 0;
}
finally
{
if (rs == 0)
{
trans.Commit();
}
else
{
try
{
trans.Rollback();
}
catch { }
}
}
}
}
return(rs);
}
