Laravel 5 how to check User exists in my other table - php

Question

How to check if user exists in my table or redirect back with a message using Laravel 5.6?
Type error: Argument 1 passed to Illuminate\Auth\SessionGuard::login() must be an instance of Illuminate\Contracts\Auth\Authenticatable, instance of Illuminate\Http\RedirectResponse given, called in C:\wamp\www\zainsurgalt\vendor\laravel\framework\src\Illuminate\Foundation\Auth\RegistersUsers.php on line 35
protected function create(array $data)
{
$isEmailExists = Niigem::where('email', $data['email'])->count();
if($isEmailExists){
User::create([
'name' => $data['name'],
'email' => $data['email'],
'password' => bcrypt($data['password']),
]);
}
else{
return Redirect::back()->withErrors(['msg', 'The Message']);
}
}
I Added my Create method here
<?php
namespace App\Http\Controllers\Auth;
use App\User;
use App\Niigem;
use Validator;
use Illuminate\Support\Facades\Redirect;
use App\Http\Controllers\Controller;
use Illuminate\Foundation\Auth\RegistersUsers;
class RegisterController extends Controller
{
use RegistersUsers;
protected $redirectTo = '/home';
public function __construct()
{
$this->middleware('guest');
}
protected function validator(array $data)
{
return Validator::make($data, [
'name' => 'required|max:255',
'email' => 'required|max:255|unique:users',
'password' => 'required|min:6|confirmed',
]);
}
protected function create(array $data){
$validator = Validator::make($data, [
'name' => 'required|string',
'email' => 'required|string|email|exists:niigems',
'password' => 'required|string',
]);
if ($validator->fails()) {
return Redirect::back()
->withErrors($validator)
->withInput();
}
return User::create([
'name' => $data['name'],
'email' => $data['email'],
'password' => Hash::make($data['password']),
]);
}
}

Answer 1

You need to return something when the user is created.
protected function create(array $data)
{
$isEmailExists = Niigem::where('email', $data['email'])->count();
if($isEmailExists){
User::create([
'name' => $data['name'],
'email' => $data['email'],
'password' => bcrypt($data['password']),
]);
return ........ you need to return something here
} else {
return Redirect::back()->withErrors(['msg', 'The Message']);
}
}

Answer 2

protected function validator(array $data)
{
return Validator::make($data, [
'name' => 'required|max:255',
'email' => 'required|max:255|unique:users|exists:niigems',
'password' => 'required|min:6|confirmed',
]);
}
protected function create(array $data)
{
User::create([
'name' => $data['name'],
'email' => $data['email'],
'password' => bcrypt($data['password']),
]);
}

Answer 3

I see your are trying to create a new user if they exist in the niigem table. To do it the Laravel way, you have to validate using Laravel's validation class. So, this should work:
protected function create(array $data)
{
$validator = Validator::make($data, [
'name' => 'required|string',
'email' => 'required|string|email|exists:niigem',
'password' => 'required|string',
]);
if ($validator->fails()) {
return Redirect::back()
->withErrors($validator)
->withInput();
}
return User::create([
'name' => $data['name'],
'email' => $data['email'],
'password' => Hash::make($data['password']),
]);
}

Answer 4

Another way is:
Niigem::firstOrCreate(['email' => 'dummy#domain.com'], ['name'=> $data['name'], 'password' => bcrypt($data['password'])]);

Answer 5

Please use this query you can use both condition as per your need:
$user = Niigem::where('email', '=', Input::get('email'))->first();
if ($user === null) {
// user doesn't exist
}
if ($user !== null)
{
// user doesn't exist
}