我正在使用 Laravel Auth 让用户能够注册。我现在正在尝试的是:用户注册后(如果他们选择了特殊角色)，另一行插入到另一个表(然后是用户)中，其中包含相关的用户 ID。这是它的代码:

<?php

namespace App\Http\Controllers\Auth;

use App\User;
use App\Http\Controllers\Controller;
use Illuminate\Support\Facades\Validator;
use Illuminate\Foundation\Auth\RegistersUsers;
use App\Complaint;


class RegisterController extends Controller
{
    /*
    |--------------------------------------------------------------------------
    | Register Controller
    |--------------------------------------------------------------------------
    |
    | This controller handles the registration of new users as well as their
    | validation and creation. By default this controller uses a trait to
    | provide this functionality without requiring any additional code.
    |
    */

    use RegistersUsers;

    /**
     * Where to redirect users after login / registration.
     *
     * @var string
     */
    protected $redirectTo = '/home';

    /**
     * Create a new controller instance.
     *
     * @return void
     */
    public function __construct()
    {
        $this->middleware('guest');
    }

    /**
     * Get a validator for an incoming registration request.
     *
     * @param  array  $data
     * @return \Illuminate\Contracts\Validation\Validator
     */
    protected function validator(array $data)
    {
        return Validator::make($data, [
            'name' => 'required|max:255',
            'email' => 'required|email|max:255|unique:users',
            'password' => 'required|min:6|confirmed',
            'username' => 'required|unique:users',
            'role' => 'required'
        ]);
    }

    /**
     * Create a new user instance after a valid registration.
     *
     * @param  array  $data
     * @return User
     */
    protected function create(array $data)
    {

        $user = new User;
        $user->name = $data['name'];
        $user->email = $data['email'];
        $user->username = $data['username'];
        $user->password = bcrypt($data['password']);
        $user->role = $data['role'];
        $user->templateURL = "";

        /*$user = User::create([
            'name' => $data['name'],
            'email' => $data['email'],
            'username' => $data['username'],
            'password' => bcrypt($data['password']),
            'role' => $data['role'],
            'templateURL' => ""
        ]);*/

        $user->save();


        if($data['role'] == 'Verkäufer'){
            $complaintRow = Complaint::create([
               'user_id' => $user->id,
                'complaintCount' => 0
            ]);
        }


        switch($data['role']){
            case 'Käufer':
                $user->attachRole(2);
                break;
            case 'Verkäufer':
                $user->attachRole(3);
                break;
            default:
                $user->attachRole(2);
                break;
        }


        return $user;
    }
}

但它不能正常工作，插入用户以及一行用于投诉，但不知何故 $user->id 似乎为空，该列始终有 user_id 设置为 0。知道为什么会这样吗？

编辑:我现在开始工作了...实际上不是我发布的代码，我只是没有在 中使 user_id 字段可填写>complaint表，所以一直都是0，因为0是默认值，所以没设置。

谢谢大家的回答。

最佳答案

根据 Laravel Eloquent ORM，$user->id 将返回用户的 Id。 如果您得到的是空值，那么保存时可能会出错。 ( https://stackoverflow.com/a/21084888/6628079 )

保存后尝试打印 $user。

更新: 如果用户保存成功，在投诉表中添加数据会更好。

protected function create(array $data)
{

    $user = new User;
    $user->name = $data['name'];
    $user->email = $data['email'];
    $user->username = $data['username'];
    $user->password = bcrypt($data['password']);
    $user->role = $data['role'];
    $user->templateURL = "";

    /*$user = User::create([
        'name' => $data['name'],
        'email' => $data['email'],
        'username' => $data['username'],
        'password' => bcrypt($data['password']),
        'role' => $data['role'],
        'templateURL' => ""
    ]);*/

    if ($user->save()) {
        if ($data['role'] == 'Verkäufer') {
            $complaintRow = Complaint::create([
                'user_id' => $user->id,
                'complaintCount' => 0
            ]);
        }


        switch ($data['role']) {
            case 'Käufer':
                $user->attachRole(2);
                break;
            case 'Verkäufer':
                $user->attachRole(3);
                break;
            default:
                $user->attachRole(2);
                break;
        }


        return $user;
    } else {
        // Your code if user doesn't save successfully.
    }
}

关于php - Laravel 获取最新插入用户的 ID，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/40842460/