<?php

namespace App;

use Illuminate\Database\Eloquent\Model;

class Room extends Model
{
    protected $fillable = ['room_type_id' ,'surface'];

    public function room_type()
    {
    	return $this->belongsTo('App\RoomType');
    }

    public function getAreaAttribute()
    {
    	return $this->surface * $this->room_type->coefficient;
    }
}