Authenticating registration against two tables: Laravel 5.1 - php

Question

I'm new to Laravel and am trying to figure out how to authenticate against two tables during new user registration.
I've modified the default methods in AuthController - I'm checking to see if a store number is valid, and if it is, register the user. This works fine - if the store number provided checks out, the user is inserted into both tables (user and user_store) and redirected to the dashboard page.
However, if the validation against $store is false, then I receive the following error
Argument 1 passed to Illuminate\Auth\Guard::login() must be an instance of Illuminate\Contracts\Auth\Authenticatable, instance of Illuminate\Http\RedirectResponse given
As you can see in the code I'm just trying to redirect to the auth/register view and provide an error message that the store number was invalid. Where am I going wrong?
SEE UPDATED CODE BELOW THIS BLOCK...
protected function validator(array $data)
{
return Validator::make($data, [
'name' => 'required|max:255',
'email' => 'required|email|max:255|unique:user',
'password' => 'required|min:6',
'store_number' => 'required',
]);
}
protected function create(array $data)
{
if(!$store = Store::where('number', $data['store_number'])->first()) {
// HERE'S WHERE I'M HAVING THE PROBLEM
return redirect('auth/register')->withErrors('store_number','Could not find a match for the Store Number');
} else {
$user = User::create([
'name' => $data['name'],
'email' => $data['email'],
'password' => bcrypt($data['password']),
]);
$data['sid'] = $store->id;
$data['uid'] = $user->id;
$store = UserStore::create($data);
return $user;
}
}
UPDATE
I've since moved this into the validator() method, because, well, it makes more sense to do the validation in the validator() method... right?
Here's my new code.
protected function validator(array $data)
{
if(!Store::where('number', $data['store_number'])->first()) {
// still not working!
return redirect('auth/register')->withErrors('store_number','Could not find a match for the Store Number');
}
return Validator::make($data, [
'name' => 'required|max:255',
'email' => 'required|email|max:255|unique:user',
'password' => 'required|min:6',
'store_number' => 'required',
]);
}
protected function create(array $data)
{
$user = User::create([
'name' => $data['name'],
'email' => $data['email'],
'password' => bcrypt($data['password']),
]);
$s['sid'] = $data['store_number'];
$s['uid'] = $user->id;
$store = UserStore::create($s);
return $user;
}
And here's my new error message
BadMethodCallException in RedirectResponse.php line 198:
Method [fails] does not exist on Redirect.

Answer 1

Figured it out. I needed to use the After validation hook inside the validator() method. :)
protected function validator(array $data)
{
$validator = Validator::make($data, [
'name' => 'required|max:255',
'email' => 'required|email|max:255|unique:user',
'password' => 'required|min:6',
'store_number' => 'required',
]);
$validator->after(function($validator) {
if(!Store::where('number', $_POST['store_number'])->first()) {
$validator->errors()->add('store_number', 'Could not find a match for the Store number');
}
});
return $validator;
}