Laravel 5.4 zeigen, bearbeiten und löschen nicht funktioniert

Question

Controller

namespace App\Http\Controllers; 
use App\Role; 
use Illuminate\Http\Request; 
use Illuminate\Support\Facades\Redirect; 
use Illuminate\Html\FormFacade; 

class RoleController extends Controller 
    { 
     public function index() 
     { 
      $roles = Role::orderBy('name','asc')->get(); 
      return view('role.index', ['roles' => $roles]); 
     } 
     public function create() 
     { 
      return view('role.create'); 
     } 
     public function store(Request $request) 
     { 
     $this->validate($request, [ 
      'name' => 'required|unique:roles|string|max:100', 
      ]); 
      $role = Role::create(['name' => $request->name]); 
      $role->save(); 
      return Redirect::route('roles.index'); 
     } 
     public function show(Role $role) 
     { 
      $roles = Role::find($role); 
      return view('role.show', ['roles' => $roles]); 
     } 
     public function edit(Role $role) 
     { 
      $roles = Role::find($role); 
      //dd($roles); 
      return view('role.edit', compact('role')); 
     } 
     public function update(Request $request, Role $role) 
     { 
      $this->validate($request, [ 
      'name' => 'required|string|max:40|unique:roles,name,' .$role 
      ]); 

      $role = Role::find($role); 
      $role->update(['name' => $request->name]); 
      //dd($role->update(['name' => $request->name])); 
      return Redirect::route('roles.show', ['role' => $role]); 
     } 
     public function destroy(Role $role) 
     { 
      //$song = Song::where('slug', $slug)->delete(); 
      $role = Role::where('id', $role)->delete(); 
      dd($role); 
      //Role::destroy($role); 
      return Redirect::route('roles.index'); 
     } 
    } 

Modell

namespace App; 
use Illuminate\Database\Eloquent\Model; 
class Role extends Model 
{ 
protected $fillable = ['name']; 
} 

index.blade.php

@extends('base.master') 
@section('title') 
<title>Models</title> 
@endsection 
@section('content') 
<div class="col-lg-12"> 
@if(Session::has('success_msg')) 
<div class="alert alert-success">{{ Session::get('success_msg') }}</div> 
@endif 
<!-- Posts list --> 
@if(!empty($roles)) 
<div class="row"> 
    <div class="col-lg-12 margin-tb"> 
     <div class="pull-left"> 
      <h2>Roles List </h2> 
     </div> 
     <div class="pull-right"> 
      <a class="btn btn-success" href="{{ route('roles.create') }}"> Add New</a> 
     </div> 
    </div> 
</div> 
<div class="row"> 
    <div class="col-xs-12 col-sm-12 col-md-12"> 
     <table class="table table-striped task-table"> 
      <!-- Table Headings --> 
      <thead> 
      <th width="25%">Name</th> 
      <th width="20%">Action</th> 
      </thead> 

      <!-- Table Body --> 
      <tbody> 
       @foreach($roles as $role) 
       <tr> 
        <td class="table-text"> 
         <div>{{$role->name}}</div> 
        </td> 

        <td> 
         <a href="{{ route('roles.show', $role->id) }}" class="label label-success">Details</a> 
         <a href="{{ route('roles.edit', $role->id) }}" class="label label-warning">Edit</a> 

         <a href="{{ route('roles.destroy', $role->id) }}" class="label label-danger" onclick="return confirm('Are you sure to delete?')">Delete</a> 
        </td> 
       </tr> 
       @endforeach 
      </tbody> 
     </table> 
    </div> 
</div> 
@endif 
</div> 
@endsection 
@section('scripts') 
<script> 
    function ConfirmDelete() 
    { 
    var x = confirm("Are you sure you want to delete?"); 
    return x; 
    } 
</script> 
@endsection 

edit.blade.php

@extends('base.master') 
@section('title') 
<title>Edit Model</title> 
@endsection 
@section('content') 
<h1>Edit Roles</h1> 
<hr/> 
<!--{{ $role }}--> 
<form class="form" role="form" method="POST" action="{{ url('/roles/'. $role->id) }}"> 
{{ method_field('PATCH') }} 
{{ csrf_field() }} 
<!-- Role Name Form Input --> 
<div class="form-group{{ $errors->has('name') ? ' has-error' : '' }}"> 
    <label class="control-label">Name</label> 
    <input type="text" class="form-control" name="name" value="{{ $role->name }}"> 
    @if ($errors->has('name')) 
    <span class="help-block"> 
     <strong>{{ $errors->first('name') }}</strong> 
    </span> 
    @endif 
</div> 
<div class="form-group"> 
    <button type="submit" class="btn btn-primary btn-lg"> 
     Edit 
    </button> 
</div> 
</form> 
@endsection 

show.blade.php

<div class="row"> 
<div class="col-lg-12 margin-tb"> 
      <div class="pull-left"> 
      <h2>Role Detalis</h2> 
     </div> 
      <div class="pull-right"> 
      <a href="{{ route('roles.index') }}" class="label label-primary pull-right"> Back</a> 
      </div> 
    </div> 
    </div  <div class="row"> 
@foreach ($roles as $role) 
    <div class="col-xs-12 col-sm-12 col-md-12"> 
     <div class="form-group"> 
      <strong>Name:</strong> 
      <p>{{strtolower($role->name)}}</p> 
    </div> 
    </div> 
    <div class="col-xs-12 col-sm-12 col-md-12"> 
    <div class="form-group"> 
     <strong>Published On:</strong> 
     {{ $role->created_at->format('d M Y - H:i:s') }} 
    </div> 
    </div> 
@endforeach 
    </div> 

Frage: 1 Auf löschen zur Detailseite geht.

Frage: 2 Nach bearbeiten es zeigt ->

(2/2) QueryException SQLSTATE [42S22]: Column nicht gefunden: 1.054 Unknown Spalte 'Name: "222"' in ' where clause‘(SQL: select count (*) als Aggregat aus roles wo name = user und name:"222" <> { "id": 3 und created_at:"2017-11-17 10:50:13" = updated_at: "2017.11.17 10.50.13"})

Frage: 3 Auf löschen geht es zur Seite zeigen.

Frage: 4 Suche nach Einzelwert wird nicht angezeigt.

Answer 1

Laravel verwendet DELETE Anforderungsfunktion löschen zu gehen. Wenn Sie versuchen zu laufen: php artisan route:list können Sie finden, dass roles.destroy Route nur in DELETE Anfrage aufgerufen wird. Also diese Zeile <a href="{{ route('roles.destroy', $role->id) }}" class="label label-danger" onclick="return confirm('Are you sure to delete?')">Delete</a> etwas ersetzen, wie unten,

<form method="POST" action="{{ route('roles.destroy', $role->id) }}" accept-charset="UTF-8" id="deleteForm"> 
<input name="_method" type="hidden" value="DELETE"> 
{{ scrf_field() }} 
<button type="submit" onclick="return confirm('Are you sure to delete?')" class="label label-danger"> 
</form> 

Answer 2

scheint, als ob Sie die Dokumentation nicht richtig durchgegangen und völlig durcheinander gebracht haben. Aktualisieren Sie Ihren Controller und schauen Sie es sich noch einmal an.

class RoleController extends Controller 
{ 
    public function index() 
    { 
     $roles = Role::orderBy('name','asc')->get(); 
     return view('role.index', ['roles' => $roles]); 
    } 
    public function create() 
    { 
     return view('role.create'); 
    } 
    public function store(Request $request) 
    { 
    $this->validate($request, [ 
     'name' => 'required|unique:roles|string|max:100', 
     ]); 
     $role = Role::create(['name' => $request->name]); 
     $role->save(); 
     return Redirect::route('roles.index'); 
    } 
    public function show($id) 
    { 
     $role = Role::find($id); 
     return view('role.show', ['roles' => $role]); 
    } 
    public function edit($id) 
    { 
     $role = Role::find($id); 
     return view('role.edit', compact('role')); 
    } 
    public function update(Request $request, $id) 
    { 
     $this->validate($request, [ 
     'name' => 'required|string|max:40|unique:roles,name' 
     ]); 

     $role = Role::find($id); 
     $role->update(['name' => $request->name]); 
     return Redirect::route('roles.show', ['role' => $role]); 
    } 
    public function destroy($id) 
    { 
     $role = Role::where('id', $id)->delete(); 
     return Redirect::route('roles.index'); 
    } 
}