func (k *kernel) Tree(path string) (api.Tree, error) {
treeModel, err := k.backend.Tree(path)
if err != nil {
return nil, err
}
tree := gotree.NewTree(treeModel, k)
return tree, nil
}
func (k *kernel) AddChild(parentPath, name string) (api.Tree, error) {
parentWillExists := k.transactionManager.EnsureTreeWillExists(parentPath)
if !parentWillExists {
parentModel, err := k.backend.Tree(parentPath)
if !parentModel.Exists || err != nil {
return nil, fmt.Errorf("Parent %s does not exis, please create the parent tree first", parentPath)
}
}
childPath := path.Join(parentPath, name)
childModel := model.NewTree(childPath, false)
k.transactionManager.Add(transaction.Add, childModel)
tree := gotree.NewTree(childModel, k)
return tree, nil
}