Implementing UUIDs as a Primary Key has an Issue on Assigning User to a Certain Role

[gieart87]

Hi,
I've just tried to integrate this package into the Laravel 8 project using UUIDs implementation as a Primary Key. Everything looks fine until I try to assign a user to a certain role, e.g 'Admin'. My code:

$user = $request->user(); $assignUserToRole = $user->assignRole('Admin');

and I got the following error:
SQLSTATE[23000]: Integrity constraint violation: 1452 Cannot add or update a child row: a foreign key constraint fails (laravel8_bootstrapdb.model_has_roles, CONSTRAINT model_has_roles_role_id_foreign FOREIGN KEY (role_id) REFERENCES roles (id) ON DELETE CASCADE) (SQL: insert into model_has_roles (model_id, model_type, role_id) values (91b57341-5e99-4057-9b94-826a76579d16, App\Models\User, 91))

My own Role model that extends the Spatie's Role model:
`<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Support\Str;

use App\Models\Concerns\UsesUuid;

class Role extends \Spatie\Permission\Models\Role
{
use HasFactory, UsesUuid;

protected $fillable = [
    'id',
    'name',
    'guard_name',
];

protected $primaryKey = 'id';
public $incrementing = false;

protected $casts = [
    'id' => 'string'
];

}
`

It looks like the String casting doesn't work like expected. Because the role id still an integer value. And when I tried to implement the String casting in the original Spatie's Role model, everything works fine then. But, I wonder why it works fine when assigning permission to a user which is I thought has a similar case.

So, if you guys know how to solve this issue without touching the original package please let me know. Thanks.

[drbyte]

See https://spatie.be/docs/laravel-permission/v3/advanced-usage/uuid

[rezadaulay]

Please check my comment here: #1639 (comment)