Model binding in registration form for Laravel 5.4 - php

Question

I am trying to pull list of data from database and show it as a dropdown in a registration form. But I get error undefined variable universities.
Register Controller
/**
* Create a new user instance after a valid registration.
*
* #param array $data
* #return User
*/
protected function create(array $data)
{
$universities = University::lists('id', 'university');
$sch_depts = Department::lists('id', 'department');
return User::create([
'firstname' => $data['firstname'],
'lastname' => $data['lastname'],
'email' => $data['email'],
'password' => bcrypt($data['password']),
'university' => $data['university'],
'school_dept' => $data['school_dept'],
])
->with(compact('universities','sch_depts'));
}
register.blade.php
<div class="form-group{{ $errors->has('university') ? ' has-error' : '' }}">
<label for="university" class="col-md-4 control-label">University</label>
<div class="col-md-6">
{!! Form::select('university', $universities, null, array('id' => 'universitiy', 'class' => 'form-control')) !!}
#if ($errors->has('university'))
<span class="help-block">
<strong>{{ $errors->first('university') }}</strong>
</span>
#endif
</div>
</div>
I am getting an error universities undefined.

Answer 1

Let's assume you have a controller called RegisterController, the create method should only return view and it's corresponding data.
public function create()
{
$universities = University::lists('id', 'university');
$sch_depts = Department::lists('id', 'department');
return view('register', compact('universities', 'sch_depts'));
}
and you should also have a store method:
public function store(\Illuminate\Http\Request $request)
{
// your validation goes here
// or just use form request validation
// docs: https://laravel.com/docs/5.4/validation#form-request-validation
User::create([
'firstname' => $request->get('firstname'),
'lastname' => $request->get('lastname'),
'email' => $request->get('email'),
'password' => bcrypt($request->get('password')),
'university' => $request->get('university'),
'school_dept' => $request->get('school_dept'),
]);
// login user here or redirect to success page
}
and your routes/web.php file should contain the following routes:
Route::get('register', 'RegisterController#create');
Route::post('register', 'RegisterController#store');
This is really basics of Laravel, please read the docs.
P.S. Laravel comes with great Authentication system, which you can override to your needs.

Answer 2

This is what I did in Laravel 7, I'm also using the default authentication implementation from Laravel, so it might help
The solution is: in the RegisterController overwrite the method showRegistrationForm (which is declared in /vendor/laravel/ui/auth-backend/RegisterUsers) and add the data array.
So you will add something like this to your RegisterController
public function showRegistrationForm()
{
$universities = University::lists('id', 'university');
$sch_depts = Department::lists('id', 'department');
return view(
'auth.register',
[
'universities' => $universities,
'sch_depts' => $sch_depts
]
);
}}