MultiAuth single table using Laravel breeze

In default Laravel, there's one constant responsible for the redirection of logged-in users:

app/Providers/RouteServiceProvider.php:

class RouteServiceProvider extends ServiceProvider
{
    /**
     * The path to the "home" route for your application.
     * Typically, users are redirected here after authentication.
     */
    public const HOME = '/home';

Laravel itself uses that RouteServiceProvider::HOME in the Middleware which is fired if the user is already logged in.

app/Http/Middleware/RedirectIfAuthenticated.php:

class RedirectIfAuthenticated
{
    public function handle(Request $request, Closure $next, ...$guards)
    {
        $guards = empty($guards) ? [null] : $guards;
 
        foreach ($guards as $guard) {
            if (Auth::guard($guard)->check()) {
                return redirect(RouteServiceProvider::HOME);
            }
        }
 
        return $next($request);
    }
}

So, first, you need to change that redirect() to your custom logic.

Let's say that your logic will be inside of your User model, like this:

app/Models/User.php:

class User extends Authenticatable
{
    // ...
 
    public function getRedirectRoute()
    {
        return match((int)$this->role_id) {
            1 => 'student.dashboard',
            2 => 'teacher.dashboard',
            // ...
        };
    }
}

Then, in the RedirectIfAuthenticated Middleware, you change it to this:

if (Auth::guard($guard)->check()) {
    return redirect(Auth::user()->getRedirectRoute());
}

Laravel Breeze

Laravel Breeze uses the same RouteServiceProvider::HOME in two places separately: Controller for the Registration and for the Login.

app/Http/Controllers/Auth/RegisteredUserController.php:

public function store(Request $request): RedirectResponse
{
    // ...
 
    Auth::login($user);
 
    return redirect(RouteServiceProvider::HOME);
}

Change the last line to:

return redirect(auth()->user()->getRedirectRoute());

And then the Login Controller.

app/Http/Controllers/Auth/AuthenticatedSessionController.php:

public function store(LoginRequest $request): RedirectResponse
{
    $request->authenticate();
 
    $request->session()->regenerate();
 
    return redirect()->intended(RouteServiceProvider::HOME);
}

Change the last line to:

return redirect()->intended(auth()->user()->getRedirectRoute());

@mikejs like @jlrdw says, there are two parts to this.

1. Authentication
2. Authorization

The first one is handled by breeze, and the users table.

The second part is handled with roles, and I suggest that you keep the users table intact, and don't add any columns to it. I would create a roles table, and a role_user table to keep track of that roles a user have, since it's quite likely that a user have more than one role.

Then it all comes down to using guards and scopes just like @jlrdw says.

You can use the laravel permission package from Spatie if you want some help and not write everything from scratch.

https://spatie.be/docs/laravel-permission/v5/introduction