public string Create(string name, string prefix, int length, bool autoSave, int?nary)
{
var value = "";
name += prefix;
lock (SyncObj)
{
var seed = GetSeed(name);
if (seed != null && seed.Value.Length != prefix.Length + length)
{
base.Delete(seed);
seed = null;
}
if (seed == null)
{
value = $"{prefix}{"1".PadLeft(length, '0')}";
seed = new Sys_Seed();
seed.InitializeId();
seed.Name = name;
seed.Value = $"{prefix}{"0".PadLeft(length, '0')}";
seed.DCreate = DateTime.Now;
seed.DUpdate = DateTime.Now;
base.Insert(seed);
}
else
{
var preVal = seed.Value.Substring(prefix.Length).ToUpper();
string curVal = null;
if (!nary.HasValue)
{
if (int.TryParse(preVal, out int result))
{
curVal = (++result).ToString();
}
else
{
nary = 36;
}
}
if (!curVal.HasValue())
{
curVal = NaryHelper.FromNary(NaryHelper.ToNary(curVal, nary.Value) + 1, nary.Value);
}
value = prefix + curVal.PadLeft(length, '0');
}
if (autoSave)
{
Save(name, value);
}
return(value);
}
}
public virtual string NextStringId()
{
return(NaryHelper.FromNary(NextId(), 36));
}