/** Recursive into children: clones the whole tree from this node downward. */
public TemplateThing clone(final Project pr, final boolean copy_id) {
final long nid = copy_id ? this.id : pr.getLoader().getNextId();
final TemplateThing copy = new TemplateThing(this.type, pr, nid);
copy.project = pr;
copy.addToDatabase();
// clone children
if (null == al_children) return copy;
for (final TemplateThing child : al_children) {
copy.addChild(child.clone(pr, copy_id));
}
return copy;
}
