larsjanssen6 / increment-decrement

     */

    public function toFirst(Model $model)

    {

        if ($model->{$this->column} != 1) {

            $models = $model::where($this->column, '<', $model->{$this->column})->get();

            $models->each->increment($this->column);

            $model->{$this->column} = 1;

            $model->save();

            return true;

        }

        return false;

    }

    {

        $last = $this->count($model);

        if ($last != $model->{$this->column}) {

            $models = $model::where($this->column, '>', $model->{$this->column})->get();

            $models->each->decrement($this->column);

            $model->{$this->column} = $last;

            $model->save();

            return true;

        }

        return false;

    }