public virtual async Task MoveAfterAsync(TPrimaryKey id, TPrimaryKey afterId, Action <TTree> childrenAction = null, CancellationToken cancellationToken = default)
{
var sourceTree = await _generalTreeRepository.GetAsync(id, cancellationToken : cancellationToken);
var destTree = await _generalTreeRepository.GetAsync(afterId, cancellationToken : cancellationToken);
var parent = destTree.ParentId.HasValue
? await _generalTreeRepository.GetAsync(destTree.ParentId.Value, cancellationToken : cancellationToken)
: null;
var oldChildren = await _generalTreeRepository.GetAllChildrenAsync(id, cancellationToken);
var oldCode = sourceTree.Code;
var oldFullName = sourceTree.FullName;
sourceTree.Code = destTree.Code;
sourceTree.Level = sourceTree.Code.Split('.').Length;
sourceTree.ParentId = destTree.ParentId;
sourceTree.FullName = parent != null
? parent.Name + _generalTreeOptions.Hyphen + sourceTree.Name
: sourceTree.Name;
await CheckSameName(sourceTree);
var children = await _generalTreeRepository.GetChildrenAsync(parent?.Id, cancellationToken);
var allNext = children.SkipWhile(x => x.Code != destTree.Code);
await _generalTreeRepository.UpdateAsync(sourceTree, cancellationToken : cancellationToken);
foreach (var child in oldChildren)
{
child.Code = _generalTreeCodeGenerator.MergeCode(sourceTree.Code, _generalTreeCodeGenerator.RemoveParentCode(child.Code, oldCode));
child.FullName = _generalTreeCodeGenerator.MergeFullName(
sourceTree.FullName,
_generalTreeCodeGenerator.RemoveParentCode(child.FullName, oldFullName),
_generalTreeOptions.Hyphen);
child.Level = child.Code.Split('.').Length;
childrenAction?.Invoke(child);
await _generalTreeRepository.UpdateAsync(child, cancellationToken : cancellationToken);
}
foreach (var child in allNext)
{
child.Code = _generalTreeCodeGenerator.GetNextCode(child.Code);
childrenAction?.Invoke(child);
await _generalTreeRepository.UpdateAsync(child, cancellationToken : cancellationToken);
}
}
