sorting topicos

app/Http/Controllers/ExercicioController.php

@@ -48,7 +48,9 @@ public function index()
 	public function create()
 	{
 		$this->authorize('create', Exercicio::class);
-		return View('exercicio.create')->with('pacotesR', $this->getInstalledPackages());
+		return View('exercicio.create')
+			->with('pacotesR', $this->getInstalledPackages())
+			->with('topicos', Topico::orderBy('order'));
 	}
 
 	/**

app/Http/Controllers/TopicoController.php

@@ -100,6 +100,37 @@ public function destroy(Topico $topico)
     $topico->exercicios()->detach();
 
     $topico->delete();
+    return redirect()->action([get_class($this), 'index']);
+  }
+
+  /**
+   * Show form for reordering of Topico
+   */
+  public function sort()
+  {
+    $this->authorize('sort', Topico::class);
+    $topicos = Topico::orderBy('order')->get();
+
+    return View('topico.sort')->with('topicos', $topicos);
+  }
+
+  /**
+   * Update order of topicos
+   */
+  public function order(Request $request)
+  {
+    $this->authorize('sort', Topico::class);
+    $rules = [
+      'topico_id.*' => 'required|int',
+    ];
+
+    $data = $request->validate($rules);
+    foreach($data['topico_id'] as $i => $id) {
+
+    }
+
+
+
     return redirect()->action([get_class($this), 'index']);
   }
 }

app/Policies/TopicoPolicy.php

@@ -74,7 +74,7 @@ public function delete(User $user, Topico $topico)
      * @param  \App\Models\User  $user
      * @return mixed
      */
-    public function order(User $user)
+    public function sort(User $user)
     {
         return $user->isAdmin();
     }

resources/views/exercicio/create.blade.php

@@ -34,6 +34,19 @@
 		    @enderror
 		</div>
 
+		<div class="form-group">
+		    <label for="topico"><h2>Tópico</h2></label>
+            @php($old_topico = old('topico_id'))
+				<select id="topico_id" name="topico_id" >
+					<option value="" {{$old_topico == null ? 'selected' : ''}}></option>
+					@foreach ($topicos as $value)
+						<option value="{{$value->id}}" {{$old_topico == $value->id ? 'selected' : ''}}>{{$value->name}}</option>
+					@endforeach
+				</select>
+		    @error('topico_id')
+			    <div class="invalid-feedback">{{ $message }}</div>
+		    @enderror
+		</div>
 		<div class="form-group">
 		    <label for="description"><h2>Enunciado</h2></label>
 		    <textarea class="form-control @error('description') is-invalid @enderror" id="description" name="description" placeholder="Salve o resultado da estatística xyz na variável abc">{{ old('description') }}</textarea>

resources/views/topico/index.blade.php

@@ -15,9 +15,9 @@
                 href="{{ URL::to('exercicio/create') }}">Cadastrar exercicio
             </a>
         @endcan
-        @can ('order', App\Models\Topico::class)
+        @can ('sort', App\Models\Topico::class)
             <a class="btn btn-small btn-edit inline"
-                href="{{ URL::to('topico/order') }}">Reordenar topicos
+                href="{{ URL::to('topico/sort') }}">Reordenar topicos
             </a>
         @endcan
         @can ('create', App\Models\Topico::class)

resources/views/topico/sort.blade.php

@@ -0,0 +1,35 @@
+@extends('layouts.base')
+@section('content')
+
+<div class="container">
+    <form action="{{URL::to('/topico/sort')}}" method="PUT">
+        @csrf
+        @method ('put')
+
+        <div class="alert alert-info">
+            Arraste para reordenar!
+        </div>
+        <table class="table table-striped table-bordered sortable">
+            <thead>
+                <tr>
+                    <td>Tópico</td>
+                </tr>
+            </thead>
+            <tbody>
+                @foreach (old('topico_id', $topicos) as $value)
+                <tr>
+                    <td>
+                        <input type='hidden'
+                            id="topico_id[]"
+                            name="topico_id[]"
+                            value="{{$value->id}}">
+                        {{ $value->name }}
+                    </td>
+                </tr>
+                @endforeach
+            </tbody>
+        </table>
+        <button type="submit" class="btn btn-primary">Salvar</button>
+    </form>
+</div>
+@endsection

routes/web.php

@@ -43,6 +43,9 @@
 Route::get('/exercicio/{exercicio}/export', [ExercicioController::class, 'export'])->name('exercicio.export');
 Route::put('/exercicio/{exercicio}/import', [ExercicioController::class, 'importEdit']);
 
+Route::get('/topico/sort', [TopicoController::class, 'sort'])->name('topico.sort');
+Route::put('/topico/sort', [TopicoController::class, 'order'])->name('topico.order');
+
 Route::resources([
     'user' => UserController::class,
     'turma' => TurmaController::class,