protected virtual async Task <string> GetNextChildCodeAsync(Guid?parentId)
{
var lastChild = await GetLastChildOrNullAsync(parentId);
if (lastChild == null)
{
var parentCode = parentId != null ? await GetCodeAsync(parentId.Value) : null;
return(TreeCodeGenerator.AppendCode(parentCode, TreeCodeGenerator.CreateCode(1)));
}
return(TreeCodeGenerator.CalculateNextCode(lastChild.Code));
}
private async Task traverseTreeAsync(TEntity parent, ICollection <TEntity> children, bool autoSave = false, CancellationToken cancellationToken = default)
{
if (children == null || !children.Any())
{
return;
}
var index = 0;
foreach (var c in children)
{
var code = TreeCodeGenerator.AppendCode(parent.Code, TreeCodeGenerator.CreateCode(++index));
c.SetCode(code);
TraverseTreeAction?.Invoke(c);
await traverseTreeAsync(c, c.Children, autoSave, cancellationToken);
}
}