我使用的是一个包spatie/laravel-slack-slash-command，下面的代码工作正常，除了这种情况，如果用户没有输入参数，会有一个错误被捕获，因为包中有一个Exceptions\InvalidInput.php类，我只是想知道如何格式化这个错误或如何覆盖这样输出的getResponse（）方法，谢谢！

InvalidInput.php

public function getResponse(Request $request): Response
{
    return parent::getResponse($request)
        ->withAttachment(
            Attachment::create()
                ->setText($this->handler->getHelpDescription())
        );
}

这是我想如何格式化错误

if (empty($slack_request))
    {
       return $this->respondToSlack("Argument Missing")
            ->withAttachment(Attachment::create()
            ->setColor('warning')
            ->setText("You must provide two digits between 00 and 13 after ex : /tasks day {00}")
        );
    }

这是我的班级

<?php

namespace App\SlashCommandHandlers;

use Spatie\SlashCommand\Attachment;
use Spatie\SlashCommand\AttachmentField;
use Spatie\SlashCommand\Handlers\SignatureHandler;
use Spatie\SlashCommand\Request;
use Spatie\SlashCommand\Response;
use App\Models\Retry42\Project;

class Projects extends SignatureHandler
{
    protected $signature = 'tasks day {day}';

  public function handle(Request $request): Response
  {
 
    $slack_request = $this->getArgument('day');
 
    if (empty($slack_request))
    {
       return $this->respondToSlack("Argument Missing")
            ->withAttachment(Attachment::create()
            ->setColor('warning')
            ->setText("You must provide two digits between 00 and 13 after ex : /tasks day {00}")
        );
    }

    if(!preg_match("/^(0[0-9]|1[0-3])$/", $slack_request))
    {
        return $this->respondToSlack("Invalid argument, two digits between 00 and 13")
            ->withAttachment(Attachment::create()
            ->setColor('warning')
            ->setText("Project day must be two digits between 00 and 13")
        );
    }

    $day =  $slack_request;

    $project = 'Day '.$day;

    $project = Project::where('name', '=', $project)->firstOrFail();
   
    $tasks = $project->tasks->toArray();

    if (!count($tasks)) {
         return $this->respondToSlack("Sorry we could not get you any tasks for Day {$day}")
            ->withAttachment(Attachment::create()
            ->setColor('warning')
            ->setText("Try another day!")
        );
    }

     $attachmentFields = collect($tasks)->reduce(function (array $attachmentFields, array $task) {
        $value = $task['description'] ?? '';

        if($task['visible'] == 1)
        {    
            $attachmentFields[] = AttachmentField::create('Name', $task['name'])->displaySideBySide();
            $attachmentFields[] = AttachmentField::create('Description', $value)->displaySideBySide();            
        }

        return $attachmentFields;
    }, []);

    return $this->respondToSlack("Here are the tasks for Day {$day}")
            ->withAttachment(Attachment::create()
            ->setColor('good')
            ->setFields($attachmentFields)
        ); 
  }
}

我试着像建议的那样将SignatureHandler.php从$foo编辑为这个

public function getArgument($foo = null)
{
    if($foo == null) return [];
    return $this->input->getArgument($foo);
}

然后尝试检查是否为空，但也不起作用

if (empty($slack_request))
    {
       return $this->respondToSlack("Argument Missing")
            ->withAttachment(Attachment::create()
            ->setColor('warning')
            ->setText("You must provide two digits between 00 and 13 after ex : /tasks day {00}")
        );
    }

对不起，我忘了跟你打招呼！