Question

我有一个应用程序表，我试图用一个按钮删除一个应用程序。但是当我单击按钮时，什么也没有发生或没有改变。

我的刀片文件

Exception has occurred: ModuleNotFoundError
No module named 'ev3dev2'
  File "C:\Users\User\Documents\implanted\tester.py", line 2, in <module>
    from ev3dev2.motor import LargeMotor, OUTPUT_A, OUTPUT_B, 
SpeedPercent, MoveTank



from ev3dev2.sensor import INPUT_1
from ev3dev2.sensor.lego import TouchSensor
from ev3dev2.led import Leds

ts = TouchSensor()
leds = Leds()

print("Press the touch sensor to change the LED color!")

while True:
    if ts.is_pressed:
        leds.set_color("LEFT", "GREEN")
        leds.set_color("RIGHT", "GREEN")
    else:
        leds.set_color("LEFT", "RED")
        leds.set_color("RIGHT", "RED")

我的控制器

{!!Form::open(['action' => ['AbstractsController@deleteapplications' , $application->A_ID , $application->S_ID], 'method' => 'POST', 'class' =>'pull-right'])!!}
{{Form::hidden('_method','DELETE')}}
<td> {{Form::submit('Withdraw', ['class' => 'btn btn-danger'])}}</td>
{!!Form::close()!!}

我的路线

public function deleteapplications($A_ID, $S_ID)
{
    $applications = Application::where(['S_ID' => $S_ID , 'A_ID' => $A_ID ])->get();
    $application->delete();
    return view('Application.show')->with('success', 'Application deleted');
}

我的HTML源代码

Route::POST('/MyApplications/{A_ID}{S_ID}', 'AbstractsController@deleteapplications');

新更新 在论坛中进行长期研究之后，我发现laravel如果不在表单中，则会忽略该表单

    <form method="POST" action="http://localhost/RssPortal45/RssPortal/public/MyApplications/220145862" accept-charset="UTF-8" class="pull-right"><input name="_method" type="hidden" value="DELETE"><input name="_token" type="hidden" value="XSj0KvnNfjkjnEB0c8ZEl5xYtdF7s889OWuNvdHq">
    <td> <input class="btn btn-danger" type="submit" value="Withdraw"></td>
    </form>
  </tr>

Answer 1

尝试一下

刀片：

{!!Form::open(['route' => ['delete.applications' , $application->A_ID , $application->S_ID], 'method' => 'DELETE', 'class' =>'pull-right'])!!}
<td> {{Form::submit('Withdraw', ['class' => 'btn btn-danger'])}}</td>
{!!Form::close()!!}

路线：

Route::delete('/MyApplications/{A_ID}{S_ID}', ['uses' => 'AbstractsController@deleteapplications', 'as' => 'delete.applications']);

希望这会有所帮助：）

Answer 2

尝试更改您的路线

Route::delete('/MyApplications/{A_ID}{S_ID}', 'AbstractsController@deleteapplications');

Answer 3

尝试一下

public function deleteapplications($A_ID, $S_ID){

$applications = Application::where(['S_ID','=', $S_ID ],
                                    ['A_ID','=', $A_ID])->firstOrFail();

$application->delete();
return view('Application.show')->with('success', 'Application deleted');

}

Answer 4

要完成一整天的调试

问题出在标签上

我从

更改了视图

{!!Form::open(['action' => ['AbstractsController@deleteapplications' , $application- 
>A_ID , $application->S_ID], 'method' => 'POST', 'class' =>'pull-right'])!!}
{{Form::hidden('_method','DELETE')}}
<td> {{Form::submit('Withdraw', ['class' => 'btn btn-danger'])}}</td>
{!!Form::close()!!}

到

<td>
{!!Form::open(['action' => ['AbstractsController@deleteapplications' , 
$application->A_ID , $application->S_ID], 'method' => 'POST', 'class' =>'pull-right'])!!}
{{Form::hidden('_method','DELETE')}}
{{Form::submit('Withdraw', ['class' => 'btn btn-danger'])}}
{!!Form::close()!!}
</td>

在我的路线中将POST方法更改为DELETE

还将/{A_ID}{S_ID}更改为/{A_ID}/{S_ID}

最后一次更改是在我的控制器而不是return view中，我使用了return redirect，因为由于变量为空，返回视图将仅返回到带有错误的删除页面

Laravel中的删除方法

4 个答案: