Creating login app and getting ModelNotFoundException error in Laravel 5

Question

I am new to PHP and Laravel. I am making a Laravel login app which prints "success" after comparing the entered value and database value.

My problem is: when both value are matched it prints "success" but when they are not matched it shows ModelNotFoundException .

I have created an exception for this but again same error occurs.

Thank you in advance!

Here is my route.php code

route.php

Route::get('register', 'RegisterController@register');
Route::post('register/show', 'RegisterController@show');
Route::post('register/store', 'RegisterController@store');
Route::get('register/login', 'RegisterController@login');

Here is my register controller which get value from index.blade.php and from database named registers which has two columns username and password

RegisterController.php

 <?php namespace App\Http\Controllers;

use App\Http\Requests;
use App\Register;
use App\Http\Controllers\Controller;
use Illuminate\Database\Eloquent\ModelNotFoundException;
use Request;

class RegisterController extends Controller {

    public function register()
    {
        return view('register.index');
    }
    public function store()
    {
        $input = Request::all();
        Register::create($input); 
        return redirect('register');
    }

    public function show()
    {




        try
        {
            $result2 = Request::get('username');
            $result = Register::where('username',  $result2)->firstOrFail();
            return view('register.show', compact('result','result2'));
        }
        catch(ModelNotFoundException $e) 
        {
            return "login fail" . redirect('register/login');
        }

    }

    public function login()
    {
        return view('register.login');
    }
}

Register.php

    use Illuminate\Database\Eloquent\Model;

    class Register extends Model {

        protected $fillable = ['username', 'password'];


    }

CreateRegistersTable

  <?php

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

class CreateRegistersTable extends Migration {
    public function up()
    {
        Schema::create('registers', function(Blueprint $table)
        {
            $table->increments('id');
            $table->string('username');
            $table->string('password');

            $table->timestamps();
        });
    }


    public function down()
    {
        Schema::drop('registers');
    }

}

index.blade.php

@extends('master')
@section('login')

{!! Form::open(['url' => 'register/store']) !!}

{!!Form::label('username','Name:')!!}
{!!Form::text('username', null)!!}
<br>
{!!Form::label('password','Password:')!!}
{!!Form::text('password', null)!!}
{!!Form::submit('submit')!!}

{!! Form::close() !!}

@stop

login.blade.php

 @extends('master')
@section('register')

{!! Form::open(['url' => 'register/show']) !!}

{!!Form::label('username','Name:')!!}
{!!Form::text('username', null)!!}
<br>
{!!Form::label('password','Password:')!!}
{!!Form::text('password', null)!!}
{!!Form::submit('submit')!!}

{!! Form::close() !!}

@stop

** show.blade.php **

@extends('master')
@section('show')

<?php 
if( $result->username == $result2  )
{
    echo "success";
}

?>
@stop

Answer 1

Have you added the error trapping logic to your app/Exceptions/Handler.php file?

Check out http://laravel.com/docs/5.0/eloquent ; specifically where it states:

Retrieving A Model By Primary Key Or Throw An Exception

Sometimes you may wish to throw an exception if a model is not found. To do this, you may use the firstOrFail method:

$model = User::findOrFail(1);

$model = User::where('votes', '>', 100)->firstOrFail();

Doing this will let you catch the exception so you can log and display an error page as necessary. To catch the ModelNotFoundException, add some logic to your app/Exceptions/Handler.php file.

use Illuminate\Database\Eloquent\ModelNotFoundException;

class Handler extends ExceptionHandler {

public function render($request, Exception $e)
  {
    if ($e instanceof ModelNotFoundException)
    {
        // Custom logic for model not found...
    }

    return parent::render($request, $e);
  }

}