private static string NewNumber(INumberedEntity entity, NumberedEntityOption option, IDbContext dbContext)
{
var key = CreateEntityKey(entity, option.Fields, dbContext);
dbContext.AcquireDistributedLock(key);
var number = option.Start.ToString(CultureInfo.InvariantCulture);
var numberedEntity = dbContext.Set <NumberedEntity>().AsNoTracking().FirstOrDefault(a => a.EntityName == key);
if (numberedEntity == null)
{
dbContext.ExecuteSqlRawCommand(
"INSERT INTO [dbo].[NumberedEntity]([EntityName], [NextValue]) VALUES(@p0,@p1)",
key,
option.Start + option.IncrementBy);
}
else
{
number = numberedEntity.NextValue.ToString(CultureInfo.InvariantCulture);
dbContext.ExecuteSqlRawCommand(
"UPDATE [dbo].[NumberedEntity] SET [NextValue] = @p0 WHERE [Id] = @p1 ",
numberedEntity.NextValue + option.IncrementBy, numberedEntity.Id);
}
if (!string.IsNullOrEmpty(option.Prefix))
{
number = option.Prefix + number;
}
return(number);
}