Laravel - Form back with Input - forms

Question

I'm doing a login form with laravel. What I want is to validate the POST values, and if it's OK, then redirect to dashborad. If not, redirect back with Input. This is my login form :
<form method="post" autocomplete="off">
<input type="hidden" name="_token" value="{{ csrf_token() }}">
<div class="form-group">
<label for="email">Adresse courriel:</label>
<input type="email" class="form-control" id="email" name="email" required>
</div>
<div class="form-group">
<label for="password">Mot de passe:</label>
<input type="password" class="form-control" id="password" name="password" required>
</div>
<button type="submit" class="btn btn-aqua">Se connecter</button>
</form>
And this is my AuthController function :
public function postLogin(Request $request){
Log::info('Showing user profile for user: '.$request);
if (Auth::attempt(['email' => $request->email, 'password' => $request->password])) {
return redirect()->route('/admin/dashboard');
}
return redirect()->back()->withInput(Input::all());
}
When it's redirecting back, my input are note filled.

Answer 1

Laravel implements a old() function which brings back input data if the form submitted has errors:
<form method="post" autocomplete="off">
<input type="hidden" name="_token" value="{{ csrf_token() }}">
<div class="form-group">
<label for="email">Adresse courriel:</label>
<input type="email" class="form-control" id="email" name="email" required value="{{ old('email') }}">
</div>
<div class="form-group">
<label for="password">Mot de passe:</label>
<input type="password" class="form-control" id="password" name="password" required>
</div>
<button type="submit" class="btn btn-aqua">Se connecter</button>
</form>
I strongly recommend to not bring back the password. I know this is annoying, but safer imo.
More info : https://laravel.com/docs/5.4/requests#old-input