Laravel mutators wont work with insert

 Mutators: 

https://laravel.com/docs/5.7/eloquent-mutators#defining-a-mutator

<?php

namespace App;

use Illuminate\Database\Eloquent\Model;

class User extends Model
{
    /**
     * Get the user's first name.
     *
     * @param  string  $value
     * @return string
     */
    public function getFirstNameAttribute($value)
    {
        return ucfirst($value);
    }
}

https://stackoverflow.com/questions/38430538/mutator-is-not-working-with-bulk-insertation

When you call Order::insert($orderArray); , it doesn't touch Eloquent in fact. It just proxies the call to Query\Builder@insert() method.

So I think the mutator can't be used in that way.