protected function showMigratingInfo($model, $level = 0) {
        $suffix = '';
        if ($model instanceof Study) {
            $suffix = $model->multiple() ? ". <bg=yellow;options=bold>Study is multiple!</>" : "";
        }
        if ($this->verbose && $model->periods != null) $suffix .= ' ' . $model->periods->pluck('academic_periods_id');

        $this->output->info(
            str_repeat("_",$level) . 'Migrating ' . class_basename($model) . ': ' .
            $model->name . '('. $model->id . ')...' . $suffix
        );
    }