willaengine/app/BusinessItemVariation.php

<?php

namespace App;

use Illuminate\Database\Eloquent\Model;

class BusinessItemVariation extends Model
{

    protected $fillable = ['price','price_2','stock','description','business_item_id', 'num_sold', 'num_in_shopping'];

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

    public function shopping_carts ()
    {
        return $this->morphMany('App\ShoppingCart', 'payable');
    }

    public function offers ()
    {
        return $this->hasMany('App\Offer');
    }

    public function orders ()
    {
        return $this->hasMany('App\Order');
    }

    public function auction ()
    {
        return $this->hasOne('App\Auction');
    }

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

    public function getDescriptionAttribute ()
    {
        return json_decode($this->attributes['description']);
    }

    public function setDescriptionAttribute ($value)
    {
        $this->attributes['description'] = json_encode($value, JSON_UNESCAPED_UNICODE);
    }
}