public function deleting(\Illuminate\Database\Eloquent\Model $model)
{
// Get column names.
// Missing required columns will throw an exception.
$pkColumn = $model->getKeyName();
$leftColumn = $model->getLeftColumn();
$rightColumn = $model->getRightColumn();
$parentColumn = $model->getParentColumn();
// A node is being deleted.
// Rebuild the entire tree.
echo 'node deleted';
// @TODO: Be smarter about this method.
dd($model);
$rootNode = $model::where($parentColumn, '=', null)->first();
$rootNode->buildTree();
return true;
}
