Help getting "invites" to work and clean up code

2014_10_12_000000_create_users_table.php

<?php

use Illuminate\Support\Facades\Schema;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Database\Migrations\Migration;

class CreateUsersTable extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        Schema::create('users', function (Blueprint $table) {
            $table->increments('id');
            $table->integer('company_id')->unsigned(); 
            $table->string('first_name');
            $table->string('last_name');
            $table->string('email')->unique();
            $table->string('password');
            $table->string('status')->default(0);
            $table->rememberToken();
            $table->timestamps();
            
            $table->foreign('company_id')
                ->references('id')
                ->on('companies');
        });
    }

    /**
     * Reverse the migrations.
     *
     * @return void
     */
    public function down()
    {
        Schema::dropIfExists('users');
    }
}

2017_12_08_232909_create_companies_table.php

<?php

use Illuminate\Support\Facades\Schema;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Database\Migrations\Migration;

class CreateCompaniesTable extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        Schema::create('companies', function (Blueprint $table) {
            $table->increments('id');
            $table->string('name');
            $table->integer('owner_user_id')->unsigned()->nullable();
            $table->timestamps();
            
            $table->foreign('owner_user_id')
                ->references('users')
                ->on('id');
        });
    }

    /**
     * Reverse the migrations.
     *
     * @return void
     */
    public function down()
    {
        Schema::dropIfExists('companies');
    }
}

Company.php

<?php

namespace App;

use Illuminate\Database\Eloquent\Model;

class Company extends Model
{
    protected $fillable = [
        'name',
    ];
	
	public function employees() {
		return $this->hasMany(User::class);	
	}
	
	public function owner() {
		return $this->belongsTo(User::class, 'owner_user_id')	
	}
}

home.blade.php

@extends('layouts.app')

@section('content')
<div class="container">
    <div class="row">
        <div class="col-md-8 col-md-offset-2">
            <div class="panel panel-default">
                <div class="panel-heading">Dashboard</div>

                <div class="panel-body">
                    @if (session('status'))
                        <div class="alert alert-success">
                            {{ session('status') }}
                        </div>
                    @endif
                    You are logged in!
                </div>
                <ul class="list-group">
                    <li class="list-group-item"><strong>First name:</strong> {{ Auth::user()->first_name }}</li>
                    <li class="list-group-item"><strong>Last name:</strong> {{ Auth::user()->last_name }}</li>
                    <li class="list-group-item"><strong>Company:</strong> {{ Auth::user()->company->company_name }}</li>    
                </ul>
            </div>
            <div class="panel panel-default">
                <div class="panel-heading">Invite User</div>

                <div class="panel-body">
                    <form method="POST" action="{{ route('register') }}">
                        {{ csrf_field() }}
                        <div class="form-group">
                            <input id="company_name" type="hidden" name="company_name" value="not-used" class="form-control">
                            <input id="first_name" type="hidden" name="first_name" value="not-provided" class="form-control">
                            <input id="last_name" type="hidden" name="last_name" value="not-provided" class="form-control">
                            <input id="password" type="hidden" name="password" value="random" class="form-control">
                            <label for="email">Email address</label>
                            <input type="email" class="form-control" id="email" aria-describedby="emailHelp" placeholder="Enter email">
                            <small id="emailHelp" class="form-text text-muted">An email will be sent to the user with an invite.</small>
                        </div>
                        <button type="submit" class="btn btn-primary">Submit</button>
                    </form>
                </div>

            </div>

        </div>
    </div>
</div>
@endsection

register.blade.php

@extends('layouts.app')

@section('content')
<div class="container">
    <div class="row">
        <div class="col-md-8 col-md-offset-2">
            <div class="panel panel-default">
                <div class="panel-heading">Register</div>

                <div class="panel-body">
                    <form class="form-horizontal" method="POST" action="{{ route('register') }}">
                        {{ csrf_field() }}

                        <div class="form-group{{ $errors->has('company_name') ? ' has-error' : '' }}">
                            <label for="company_name" class="col-md-4 control-label">Company</label>

                            <div class="col-md-6">
                                <input id="company_name" type="text" class="form-control" name="company_name" value="{{ old('company_name') }}" required autofocus>

                                @if ($errors->has('company_name'))
                                    <span class="help-block">
                                        <strong>{{ $errors->first('company_name') }}</strong>
                                    </span>
                                @endif
                            </div>
                        </div>

                        <div class="form-group{{ $errors->has('name') ? ' has-error' : '' }}">
                            <label for="first_name" class="col-md-4 control-label">Frist Name</label>

                            <div class="col-md-6">
                                <input id="first_name" type="text" class="form-control" name="first_name" value="{{ old('first_name') }}" required autofocus>

                                @if ($errors->has('first_name'))
                                    <span class="help-block">
                                        <strong>{{ $errors->first('first_name') }}</strong>
                                    </span>
                                @endif
                            </div>
                        </div>

                        <div class="form-group{{ $errors->has('name') ? ' has-error' : '' }}">
                            <label for="last_name" class="col-md-4 control-label">Last Name</label>

                            <div class="col-md-6">
                                <input id="last_name" type="text" class="form-control" name="last_name" value="{{ old('last_name') }}" required autofocus>

                                @if ($errors->has('last_name'))
                                    <span class="help-block">
                                        <strong>{{ $errors->first('last_name') }}</strong>
                                    </span>
                                @endif
                            </div>
                        </div>

                        <div class="form-group{{ $errors->has('email') ? ' has-error' : '' }}">
                            <label for="email" class="col-md-4 control-label">E-Mail Address</label>

                            <div class="col-md-6">
                                <input id="email" type="email" class="form-control" name="email" value="{{ old('email') }}" required>

                                @if ($errors->has('email'))
                                    <span class="help-block">
                                        <strong>{{ $errors->first('email') }}</strong>
                                    </span>
                                @endif
                            </div>
                        </div>

                        <div class="form-group{{ $errors->has('password') ? ' has-error' : '' }}">
                            <label for="password" class="col-md-4 control-label">Password</label>

                            <div class="col-md-6">
                                <input id="password" type="password" class="form-control" name="password" required>

                                @if ($errors->has('password'))
                                    <span class="help-block">
                                        <strong>{{ $errors->first('password') }}</strong>
                                    </span>
                                @endif
                            </div>
                        </div>

                        <div class="form-group">
                            <label for="password-confirm" class="col-md-4 control-label">Confirm Password</label>

                            <div class="col-md-6">
                                <input id="password-confirm" type="password" class="form-control" name="password_confirmation" required>
                            </div>
                        </div>

                        <div class="form-group">
                            <div class="col-md-6 col-md-offset-4">
                                <button type="submit" class="btn btn-primary">
                                    Register
                                </button>
                            </div>
                        </div>
                    </form>
                </div>
            </div>
        </div>
    </div>
</div>
@endsection

RegisterController.php

<?php

namespace App\Http\Controllers\Auth;

use App\User;
use App\Http\Controllers\Controller;
use Illuminate\Support\Facades\Validator;
use Illuminate\Foundation\Auth\RegistersUsers;
use \App\Company;

class RegisterController extends Controller
{
    /*
    |--------------------------------------------------------------------------
    | Register Controller
    |--------------------------------------------------------------------------
    |
    | This controller handles the registration of new users as well as their
    | validation and creation. By default this controller uses a trait to
    | provide this functionality without requiring any additional code.
    |
    */

    use RegistersUsers;

    /**
     * Where to redirect users after registration.
     *
     * @var string
     */
    protected $redirectTo = '/home';

    /**
     * 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, [
            'company_name' => 'required|string|max:255',
            'first_name' => 'required|string|max:255',
            'last_name' => 'required|string|max:255',
            'email' => 'required|string|email|max:255|unique:users',
            'password' => 'required|string|min:6|confirmed',
        ]);
    }

    /**
     * Create a new user instance after a valid registration.
     *
     * @param  array  $data
     * @return \App\User
     */
    protected function create(array $data)
    {
        // Create a new company. Needs to happen first to get the company ID.
        $company = Company::create(['company_name' => $data['company_name']]);

        // Create the new user
        $user = $company->users()->create([
            'first_name' => $data['first_name'],
            'last_name' => $data['last_name'],
            'email' => $data['email'],
            'password' => bcrypt($data['password']),
        ]);
        
        // Update the Company with the user ID to set owner
        $company->owner()->associate($user);
        $company->save();
        
        return $user;
    }
}

User.php

<?php

namespace App;

use Illuminate\Notifications\Notifiable;
use Illuminate\Foundation\Auth\User as Authenticatable;
use App\Company;

class User extends Authenticatable
{
    use Notifiable;

    /**
     * The attributes that are mass assignable.
     *
     * @var array
     */
    protected $fillable = [
        'first_name','last_name','company_id', 'email', 'password','status',
    ];

    /**
     * The attributes that should be hidden for arrays.
     *
     * @var array
     */
    protected $hidden = [
        'password', 'remember_token',
    ];

    // Greats a relationship between a user and company
    public function company()
    {
        return $this->belongsTo(Company::Class);
    }
    
}