Question

所以我正试图从数据库中获取数据到从getbootstrap获得的数据表中

但是我得到了错误：

未定义变量：问题（视图：C：\ Users ... \ resources \ views \ dashboard.blade.php）

在ive下面列出了我使用变量的代码：issue

dashboard.blade.php

<table id="datatable" class="table table-bordered table-striped table-dark">
<thead>
<tr>
    <th scope="col">#</th>
    <th scope="col">Issue</th>
    <th scope="col">begrootte tijd</th>
    <th scope="col">beschrijving</th>
    <th scope="col">Action</th>
</tr>
</thead>
<tfoot>
<tr>
    <th scope="col">#</th>
    <th scope="col">Issue</th>
    <th scope="col">begrootte tijd</th>
    <th scope="col">beschrijving</th>
    <th scope="col">Action</th>
</tr>
</tfoot>
<tbody>
@foreach($issue as $issues)
    <tr>
        <th> {{ $issues->id }} </th>
        <th> {{ $issues->iname }} </th>
        <th> {{ $issues->begroting }} </th>
        <th> {{ $issues->description }} </th>
        <th>
            <a href="" class="btn btn-success"> START</a>
            <a href="" class="btn btn-danger"> STOP</a>

        </th>

    </tr>
@endforeach
</tbody>

DashboardController.php

    <?php

namespace App\Http\Controllers;

use App\Dashboard;
use Illuminate\Http\Request;


class DashboardController extends Controller
{
    public function store(Request $request)
    {
        $this->validate($request,[
            'iname' => 'required',
            'begroting' => 'required',
            'description' => 'required',

        ]);

        $issue = new Issue;

        $issue->iname = $request->input('iname');
        $issue->begroting = $request->input('begroting');
        $issue->description = $request->input('description');

        $issue->save();

        return redirect('/issue')->with('success', 'Issue opgeslagen');



    }

}

模型 dashboard.php

    <?php

namespace App;

use Illuminate\Database\Eloquent\Model;

class Dashboard extends Model
{
    protected $table = 'issue';
}

Answer 1

您应该将变量传递给视图。

假设您有一个HomeController，并希望将一些变量从控制器传递到视图。

HomeController.php

public function show()
{
    $someVariable = "An Awesome Example";
    return view('example', [
        'someVariable' => $someVariable,
    ]);
}

example.blade.php

<b>{{ $someVariable }}</b>

您必须将数据传递到视图。然后，您可以在视图中向用户显示该数据。在我的示例中，我创建了一个具有键 someVariable 的数组，并将 $ someVariable 传递给该键的值。

然后在我的视图内，我可以使用键显示该值。

Answer 2

您没有将$ issues发送到刀片页面，请像这样更改DashboardController：

<?php

namespace App\Http\Controllers;

use App\Dashboard;
use Illuminate\Http\Request;


class DashboardController extends Controller
{
      public function store(Request $request)
      {
           $this->validate($request,[
              'iname' => 'required',
              'begroting' => 'required',
              'description' => 'required',

           ]);

          $issue = new Issue;

          $issue->iname = $request->input('iname');
          $issue->begroting = $request->input('begroting');
          $issue->description = $request->input('description');

          $issue->save();

          $issues=Dashboard::all();
          return redirect('/issue')->with('success', 'Issue opgeslagen')
                                   ->with('issues',$issues);



     }

 }

laravel内部未定义变量

2 个答案: