Product.php

<?php

namespace App;

use Illuminate\Database\Eloquent\Model;

class Product extends Model
{
    /**
     * The table associated with the model.
     *
     * @var string
     */
    protected $table = 'products';

    /**
     * Find published product by name
     * @param  string $name
     * @return Product
     */
    public function findByName(string $name): Product
    {
        return $this->whereName($name)
                    ->whereIsPublished(1)
                    ->first();
    }

    /**
     * Say we want to concat the name and a category name
     * @return string 
     */
    public function concatName(): string
    {
        return $this->attributes['name'] . ' - ' . $this->attributes['category_name'];
    }
}