Laravel 5.4 邀请用户协作

最终效果

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发送邮件时在 invites表添加一条数据，在邮件验证成功后，添加到user表中。代码没有判断重复邀请
可以给一个邮件发多个邀请，在已经添加到user表后，再次邮件中点击会报重复错误。

1. 前提，配置好邮件发送

2. 配置数据库相关

2.1 创建数据库

create database Invit default charset utf8

2.2 配置链接数据库`.env`文件

DB_CONNECTION=mysql
DB_HOST=127.0.0.1
DB_PORT=3306
DB_DATABASE=Invit
DB_USERNAME=root
DB_PASSWORD=

2.3 修改 `User` 的数据库迁移，去掉了名称和密码

public function up()
{
    Schema::create('users', function (Blueprint $table) {
        $table->increments('id');
        $table->string('email')->unique();
        $table->rememberToken();
        $table->timestamps();
    });
}

2.4 创建 `invites` 表迁移

php artisan make:migration create_invites_table //创建数据库迁移文件

public function up()
{
    Schema::create('invites', function (Blueprint $table) {
        $table->increments('id');
        $table->string('email');
        $table->string('token', 16)->unique();
        $table->timestamps();
    });
}

public function down()
{
    Schema::drop('invites');
}

2.5 执行数据库迁移

php artisan migrate

3. 模型

3.1 `Invite` 模型

 php artisan make:model Invite  //创建Invite模型

 <?php

namespace App;

use Illuminate\Database\Eloquent\Model;

class Invite extends Model
{
    protected $fillable = [
    'email', 'token',
    ];
}

4.路由

Route::get('invite', 'InviteController@invite')->name('invite');
Route::post('invite', 'InviteController@process')->name('process');
// {token} is a required parameter that will be exposed to us in the controller method
Route::get('accept/{token}', 'InviteController@accept')->name('accept');

5.控制器

php artisan make:controller InviteController

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use App\User;
use App\Invite;
use App\Mail\InviteCreated;
use Illuminate\Support\Facades\Mail;

class InviteController extends Controller
{

    public function invite()
    {
        // show the user a form with an email field to invite a new user
        return view('invite');
    }

    public function process(Request $request)
    {
        // validate the incoming request data

        do {
            //generate a random string using Laravel's str_random helper
            $token = str_random();
        } //check if the token already exists and if it does, try again
        while (Invite::where('token', $token)->first());

        //create a new invite record
        $invite = Invite::create([
            'email' => $request->get('email'),
            'token' => $token
        ]);
        //dd($invite);
        // send the email
        Mail::to($request->get('email'))->send(new InviteCreated($invite));

        // redirect back where we came from
        return redirect()
            ->back();
    }

    public function accept($token)
    {
        // Look up the invite
        if (!$invite = Invite::where('token', $token)->first()) {
            //if the invite doesn't exist do something more graceful than this
            abort(404);
        }

        // create the user with the details from the invite
        User::create(['email' => $invite->email]);

        // delete the invite so it can't be used again
        $invite->delete();

        // here you would probably log the user in and show them the dashboard, but we'll just prove it worked

        return 'Good job! Invite accepted!';
    }
}

6.邮件类

php artisan make:mail InviteCreated

<?php

namespace App\Mail;

use Illuminate\Bus\Queueable;
use Illuminate\Mail\Mailable;
use Illuminate\Queue\SerializesModels;
use Illuminate\Contracts\Queue\ShouldQueue;
use App\Invite;

class InviteCreated extends Mailable
{
    use Queueable, SerializesModels;

    /**
     * Create a new message instance.
     *
     * @return void
     */
    public function __construct(Invite $invite)
    {
        $this->invite = $invite;
    }

    /**
     * Build the message.
     *
     * @return $this
     */
    public function build()
    {
        $invite=$this->invite;
        //return $this->view('view.name');
        return $this->from('kzh4435@163.com')
                ->view('emails.invite',compact('invite'));
    }
}

大功告成

参考

https://laravel-news.com/user-invitation-system

疑问

在原文邮件类的build()方法中

public function build()
    {
        $invite=$this->invite;
        //return $this->view('view.name');
        return $this->from('kzh4435@163.com')
                ->view('emails.invite',compact('invite'));
    }

原文并没有传送参数invite,没有明白$invite 如何传送到视图的。请大家解惑
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