在插入数据库之前操作表单数据

Question

我正在开发一个 API，我正在从移动应用程序获取表单数据以将其存储在数据库表中 workers 我想在将其存储到数据库之前修改列 registration_id 数据

在我的控制器中我像这样存储

public function store()
{
    Driver::create(input::all());

    return $this->respondCreated('Driver created successfully');
}

在我的模型中，我正在尝试将 registration_id 值更改为某个值

<?php

namespace App;

use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\SoftDeletes;

class Driver extends Model
{
   use SoftDeletes;

   protected $fillable = [
                           'agent_id',
                           'registration_center',
                           'sponsor_name',
                           'event_name',
                           'registration_id',
                          ];

   protected $dates = ['deleted_at'];

    public function modifyRegistrationId($registration_id)
    {   
        $this->attributes['registration_id'] = 'test';
    }   
}

但它无法正常工作，原始表单值正在插入到数据库中 我如何将registration_id 更改为其他值

期待获得急需的帮助

谢谢

Answer 1

如果您总是覆盖该值，define a mutator:

public function setRegistrationIdAttribute($value)
{
    $this->attributes['registration_id'] = 'test';
}

如果您只想执行一次，请覆盖该值：

public function store(Request $request)
{
    $request->registration_id = 'test';
    Driver::create($request->all());

    return $this->respondCreated('Driver created successfully');
}

Answer 2

您可以使用事件在保存之前更改任何数据。看看Laravel docs。这里我们使用boot()定义回调行为：

class Driver extends Model 
{

    public static function boot()
    {
        parent::boot();

        self::creating(function($model){
            //before create, do this...
            $lastRegistrationId = Driver::orderBy('id', 'desc')->first()->registration_id;
            $this->registration_id = $lastRegistrationId.date('Y-m-d');
        });
    }
    ...
}

您可以使用的功能有：创建、创建、更新、更新、保存、保存、删除、删除、恢复、恢复