public function shiftSiblingsForRestore()
{
if (is_null($this->getRight()) || is_null($this->getLeft())) {
return;
}
$self = $this;
$this->getConnection()->transaction(function () use($self) {
$lftCol = $self->getLeftColumnName();
$rgtCol = $self->getRightColumnName();
$lft = $self->getLeft();
$rgt = $self->getRight();
$diff = $rgt - $lft + 1;
$self->newNestedSetQuery()->where($lftCol, '>=', $lft)->increment($lftCol, $diff);
$self->newNestedSetQuery()->where($rgtCol, '>=', $lft)->increment($rgtCol, $diff);
});
}