How to attach files during user registration process in Laravel 8 - php

Question

I'm developing a registration web app using Laravel 8, I'm quite new in Laravel. It can be accessed through this link: http://bidvest.inboundinnovative.com/
I would like users to attach files during registration (I will have 3 file upload fields in my form).
Please help me come up with logic code for validating and uploading the files both in a directory and in mySQL database. I have checked for solutions online but none of them has worked. Please help me, Thanks.
Below is a section of the form with file uploading fields in blade template:
<div class="form-group row">
<div class="col-sm-3">
<label for="kra_pindoc">Attach KRA Document</label>
<input type="file" class="form-control-file" id="kra_pindoc" name="kra_pindoc">
</div>
<div class="col-sm-3">
<label for="id_carddoc">Attach ID Document</label>
<input type="file" class="form-control-file" id="id_carddoc" name="id_carddoc">
</div>
</div>
My RegisterController
<?php
namespace App\Http\Controllers\Auth;
use App\Http\Controllers\Controller;
use App\Providers\RouteServiceProvider;
use App\Models\User;
use Illuminate\Foundation\Auth\RegistersUsers;
use Illuminate\Support\Facades\Hash;
use Illuminate\Support\Facades\Validator;
use Illuminate\Http\Request;
use Illuminate\Auth\Events\Registered;
use Spatie\Permission\Models\Role;
use Spatie\Permission\Models\Permission;
class RegisterController extends Controller
{
use RegistersUsers;
/**
* Where to redirect users after registration.
*
* #var string
*/
protected $redirectTo = '/success';
/**
* Create a new controller instance.
*
* #return void
*/
public function __construct()
{
$this->middleware('guest');
}
/**
* Get a validator for an incoming registration request.
*
* #param array $data
* #return \Illuminate\Contracts\Validation\Validator
*/
protected function validator(array $data)
{
return Validator::make(
$data,
[
'surname' => 'required|string|max:255',
'middle_name' => 'required|string|max:255',
'first_name' => 'required|string|max:255',
'email' => 'required|email|max:255|unique:users',
'password' => 'required|min:8|confirmed',
'password_confirmation' => 'required|same:password',
'username' => 'required|string|max:255|unique:users|alpha_dash',
]
);
}
protected function create(array $data)
{
return User::create([
'surname' => $data['surname'],
'middle_name' => $data['middle_name'],
'first_name' => $data['first_name'],
'email' => $data['email'],
'username' => $data['username'],
'password' => Hash::make($data['password']),
]);
}
//This code is used to disable auto-login after registration
//It overrides the reister function
public function register(Request $request)
{
$this->validator($request->all())->validate();
event(new Registered($user = $this->create($request->all())));
return $this->registered($request, $user)
?: redirect($this->redirectPath());
}
}
My Model
<?php
namespace App\Models;
use Illuminate\Contracts\Auth\MustVerifyEmail;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Foundation\Auth\User as Authenticatable;
use Illuminate\Notifications\Notifiable;
use Spatie\Permission\Traits\HasRoles;
class User extends Authenticatable
{
use HasFactory, Notifiable, HasRoles;
/**
* The attributes that are mass assignable.
*
* #var array
*/
protected $fillable = [
'surname',
'middle_name',
'first_name',
'email',
'password',
'username',
];
/**
* The attributes that should be hidden for arrays.
*
* #var array
*/
protected $hidden = [
'password',
'remember_token',
];
/**
* The attributes that should be cast to native types.
*
* #var array
*/
protected $casts = [
'email_verified_at' => 'datetime',
];
}