public virtual async Task <string> GetNextChildCodeAsync(long?parentId)
{
var lastChild = await GetLastChildOrNullAsync(parentId);
if (lastChild == null)
{
var parentCode = parentId != null ? await GetCodeAsync(parentId.Value) : null;
return(DataDictionay.AppendCode(parentCode, DataDictionay.CreateCode(1)));
}
return(DataDictionay.CalculateNextCode(lastChild.Code));
}
public virtual async Task MoveAsync(long id, long?parentId)
{
var dataDictionay = await DataDictionayRepository.GetAsync(id);
if (dataDictionay.ParentId == parentId)
{
return;
}
var children = await FindChildrenAsync(id);
var oldCode = dataDictionay.Code;
dataDictionay.Code = await GetNextChildCodeAsync(parentId);
dataDictionay.ParentId = parentId;
await ValidateDataDictionayAsync(dataDictionay);
//更新
foreach (var child in children)
{
child.Code = DataDictionay.AppendCode(dataDictionay.Code,
DataDictionay.GetRelativeCode(child.Code, oldCode));
}
}
