Question

我是Laravel的新手，我收到此错误消息＆＃34;从空值＆＃34;创建默认对象。我应该更新当前的设施，但我没有做任何好事。有人说，当我点击SAVE按钮（edit_facilities.blade.php）时，它会更新数据库中的数据，但我认为我做错了。有人可以帮我解决如何改进或纠正我的代码的问题。谢谢。这是我的 CONTROLLER ：

      <?php
      namespace App\Http\Controllers;

      use Illuminate\Http\Request;

      use App\Http\Requests;

      use App\Facilities;

      use View;

      use Redirect;

      use Alert;

      use Validator;

      use Input;

      use App\Providers\SweetAlertServiceProvider;

      class FacilitiesController extends Controller
      {

      public $restful = true;


      public function update_facilities($id){

        $facility = Facilities::find($id);

        $facility->facility_name = Input::get('facility_name');
        $facility->category      = Input::get('category');
        $facility->save();


        Alert::success('Successfully Updated', 'Congratulations');
        return view('hotelier/facilities');
      }?>

这是我对 view_facilities.blade.php 的看法：

<h2>Hotel Facilities</h2>
<table class="table table-bordered table-hover">
    <thead>
        <tr>
            <th>Facility Name</th>
            <th>Category</th>
            <th>Actions</th>
        </tr>
    </thead>
    <tbody id="facility_list">
        @foreach($facilities as $facility)
            <tr id="facility{{$facility->id}}">
                <td>{{ $facility->facility_name }}</td>

                <td>{{ $facility->category }}</td>

                <td><a href="<?php echo 'edit_facilities/'.$facility->id ?>" value="{{$facility->id}}" class="btn btn-info open-modal">Edit</a>&nbsp;
                <a id="delete<?php echo $facility->id ?>" href="<?php echo 'delete_facilities/'.$facility->id ?>" class="btn btn-danger" onclick="delete_fac(this)" value="<?php echo $facility->facility_name ?>">Delete</a>&nbsp;

            </tr>
        @endforeach

    </tbody>
</table>

这是我的 edit_facilities.blade.php的视图

<div class="container">
<h2>Edit Hotel Facility</h2>
<div class="col-md-4 form-horizontal">
    <form action="/update_facilities/'.$facility->id" method="POST" enctype="multipart/form-data">
    <input type="hidden" name="_token" value="{{ csrf_token() }}" />
        <label>Facility Name</label>
        <input type="text" class="form-control" value="{{ $facility['facility_name'] }}" name="facility_name" id="facility_name" autocomplete="off"></input>
        <br />
        <label>Category</label>
        <input type="text" class="form-control" value="{{ $facility['category'] }}" name="category" id="category" autocomplete="off"></input>
        <br />
        <button type="submit" class="btn btn-info">Save</button>
    </form>
</div>

我的路线：

Route::post('/update_facilities/{id}', 'FacilitiesController@update_facilities');

Answer 1

更改表单标记和update_facilities功能：

<form action="{{ action('FacilitiesController@update_facilities', $facility->id") }} method="POST" enctype="multipart/form-data">

public function update_facilities($id){
    $facility = Facilities::find($id);
    if(count($facility) > 0){
        $facility->facility_name = Input::get('facility_name');
        $facility->category      = Input::get('category');
        $facility->save();
        Alert::success('Successfully Updated', 'Congratulations');
        return view('hotelier.facilities');
    } else {
        Alert::error('Facilities not found', 'Error');
        return view('hotelier.facilities');
    }
}

＆＃34;从空值创建默认对象＆＃34;在更新laravel 5

1 个答案: