public function save(Request $request)
 {
     $nomeDisciplina = $request->input('nome');
     $disciplina = new Disciplina();
     $disciplina->nome = $nomeDisciplina;
     $disciplina->save();
     $response = '{"id":"' . $disciplina->id . '", "nome":"' . $disciplina->nome . '"}';
     return $response;
 }
 public function rankingActual()
 {
     if (isset($_SESSION['disciplina'])) {
         $disciplina = $_SESSION['disciplina'];
         $rankings = $this->ranking($disciplina->id);
     } else {
         $disciplina = Disciplina::all()->first();
         $_SESSION['disciplina'] = $disciplina;
         $rankings = $this->ranking($disciplina->id);
     }
     return $rankings;
 }
 public function index($id)
 {
     $disciplina = Disciplina::find($id);
     $_SESSION['disciplina'] = $disciplina;
     $gestorPergunta = new GestorPergunta();
     $perguntas = $gestorPergunta->perguntas();
     if (count($perguntas) > 10) {
         $perguntas = $perguntas->slice(1, 10);
     }
     $nrPerguntas = count($perguntas);
     if ($nrPerguntas < 1) {
         return view("exameIndisponivel");
     }
     $_SESSION['perguntas'] = $perguntas;
     return view('exercicio', ["perguntas" => $perguntas, "nrPerguntas" => $nrPerguntas]);
 }
 public function index()
 {
     $perguntas = Pergunta::all();
     $disciplinas = Disciplina::all();
     return view('admin.pergunta', ["disciplinas" => $disciplinas, "perguntas" => $perguntas]);
 }
<?php

$active = "ranking";
?>
@extends('layouts.main')
<?php 
$disciplinaEscolhida = $_SESSION['disciplina'];
$disciplinas = \App\Disciplina::all();
?>
@section('title')
    FemoengQuiz : Classificação
@stop

@section('body')
    <div class="col-lg-12 col-md-12 col-sm-12">
        <div class="container">
            <div class="well">
                <h3 class="text-center text-info">Classificação Actual: {{$disciplinaEscolhida->nome}} </h3>
                <select class="form-control" id="disciplinas" onchange="seleciona()" >
                    @foreach($disciplinas as $disciplina)
                        @if($disciplina->id == $disciplinaEscolhida->id)
                            <option selected="true" value="{{$disciplina->id}}">{{$disciplina->nome}}</option>
                        @else
                            <option value="{{$disciplina->id}}">{{$disciplina->nome}}</option>
                        @endif
                    @endforeach
                </select>
                <div class="jumbotron">

                <ol>
                    @foreach($rankings as $ranking)