我正在一个项目上，这是涉及的领域
users表-
<?php
use Illuminate\Database\Migrations\Migration;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Support\Facades\Schema;
class CreateUsersTable extends Migration
{
/**
* Run the migrations.
*
* @return void
*/
public function up()
{
Schema::create('users', function (Blueprint $table) {
$table->bigIncrements('id');
$table->string('name');
$table->string('email')->unique();
$table->timestamp('email_verified_at')->nullable();
$table->string('password');
$table->rememberToken();
$table->unsignedInteger('role_id');
$table->timestamps();
});
}
/**
* Reverse the migrations.
*
* @return void
*/
public function down()
{
Schema::dropIfExists('users');
}
}
role表-
<?php
use Illuminate\Database\Migrations\Migration;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Support\Facades\Schema;
class CreateRolesTable extends Migration
{
/**
* Run the migrations.
*
* @return void
*/
public function up()
{
Schema::create('roles', function (Blueprint $table) {
$table->bigIncrements('id');
$table->string('description');
$table->timestamps();
});
}
/**
* Reverse the migrations.
*
* @return void
*/
public function down()
{
Schema::dropIfExists('roles');
}
}
用户模型
<?php
namespace App;
use Illuminate\Contracts\Auth\MustVerifyEmail;
use Illuminate\Foundation\Auth\User as Authenticatable;
use Illuminate\Notifications\Notifiable;
class User extends Authenticatable
{
use Notifiable;
/**
* The attributes that are mass assignable.
*
* @var array
*/
protected $fillable = [
'name', 'email', 'password', 'role_id',
];
public function role(){
return $this->belongsTo(Role::class);
}
/**
* The attributes that should be hidden for arrays.
*
* @var array
*/
protected $hidden = [
'password', 'remember_token',
];
/**
* The attributes that should be cast to native types.
*
* @var array
*/
protected $casts = [
'email_verified_at' => 'datetime',
];
}
角色模型
<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class Role extends Model
{
protected $guarded = [];
public function users(){
return $this->hasMany(User::class);
}
}
注册控制器
<?php
namespace App\Http\Controllers\Auth;
use App\Http\Controllers\Controller;
use App\Role;
use App\User;
use Illuminate\Foundation\Auth\RegistersUsers;
use Illuminate\Support\Facades\Hash;
use Illuminate\Support\Facades\Validator;
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 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', 'string', 'max:255'],
'email' => ['required', 'string', 'email', 'max:255', 'unique:users'],
'password' => ['required', 'string', 'min:8', 'confirmed'],
'role_id' => 'required',
]);
}
/**
* Create a new user instance after a valid registration.
*
* @param array $data
* @return \App\User
*/
protected function create(array $data)
{
$user = User::create([
'name' => $data['name'],
'email' => $data['email'],
'password' => Hash::make($data['password']),
'role_id' => $data['role_id'],
]);
$roles = Role::all();
return compact('user', 'roles');
}
}
这是我的套准刀片
@extends('layouts.app')
@section('content')
<div class="container">
<div class="row justify-content-center">
<div class="col-md-8">
<div class="card">
<div class="card-header">{{ __('Register') }}</div>
<div class="card-body">
<form method="POST" action="{{ route('register') }}">
@csrf
<div class="form-group row">
<label for="name" class="col-md-4 col-form-label text-md-right">{{ __('Name') }}</label>
<div class="col-md-6">
<input id="name" type="text" class="form-control @error('name') is-invalid @enderror" name="name" value="{{ old('name') }}" required autocomplete="name" autofocus>
@error('name')
<span class="invalid-feedback" role="alert">
<strong>{{ $message }}</strong>
</span>
@enderror
</div>
</div>
<div class="form-group row">
<label for="email" class="col-md-4 col-form-label text-md-right">{{ __('E-Mail Address') }}</label>
<div class="col-md-6">
<input id="email" type="email" class="form-control @error('email') is-invalid @enderror" name="email" value="{{ old('email') }}" required autocomplete="email">
@error('email')
<span class="invalid-feedback" role="alert">
<strong>{{ $message }}</strong>
</span>
@enderror
</div>
</div>
<div class="form-group row">
<label for="password" class="col-md-4 col-form-label text-md-right">{{ __('Password') }}</label>
<div class="col-md-6">
<input id="password" type="password" class="form-control @error('password') is-invalid @enderror" name="password" required autocomplete="new-password">
@error('password')
<span class="invalid-feedback" role="alert">
<strong>{{ $message }}</strong>
</span>
@enderror
</div>
</div>
<div class="form-group row">
<label for="password-confirm" class="col-md-4 col-form-label text-md-right">{{ __('Confirm Password') }}</label>
<div class="col-md-6">
<input id="password-confirm" type="password" class="form-control" name="password_confirmation" required autocomplete="new-password">
</div>
</div>
<div class="form-group row">
<label for="role" class="col-md-4 col-form-label text-md-right">Role</label>
<select name="role_id" id="role_id" class="form-control">
@foreach($roles as $role)
<option value="{{ $role->id }}">{{ $role->name }}</option>
@endforeach
</select>
</div>
<div class="form-group row mb-0">
<div class="col-md-6 offset-md-4">
<button type="submit" class="btn btn-primary">
{{ __('Register') }}
</button>
</div>
</div>
</form>
</div>
</div>
</div>
</div>
</div>
@endsection
我收到此错误：
未定义变量：角色（查看：/Users/macair13/MeatracProject/resources/views/auth/register.blade.php）
并且我已经在我的注册控制器中声明了角色
请迷惑您，因为我个人迷路了
答案 0 :(得分：2)
您尚未在刀片文件中传递$ roles变量， 因此，刀片文件的foreach循环中会发生致命错误， 因此，要解决此问题，您必须在刀片中传递$ roles， 有很多方法可以将$ roles传递给register.blade文件。 通过从控制器路径下方的showRegistrationForm（）方法覆盖
\vendor\laravel\framework\src\Illuminate\Foundation\Auth\RegistersUsers.php
或在供应商路径上方的方法中传递$ roles。 例如：
return view('auth.register')->with($roles,Role::get());//don't forget to use Role model.
或者如果未设置$ roles，则在刀片文件中的 foreach（）之前使用 isset（）条件，例如
@isset($roles)
@foreach($roles as $role)
<option value="{{ $role->id }}">{{ $role->name }}</option>
@endforeach
@endisset
答案 1 :(得分：0)
您需要将roles传递给视图，但是您所做的就是在创建用户时尝试返回角色。那么就不需要它们了。
因此只需在您的寄存器控制器中覆盖showRegistrationForm()方法，它应该可以工作。
将此添加到您的RegisterController中。
public function showRegistrationForm()
{
$roles = Role::all();
return view('auth.register', compact('roles'));
}
这：
protected function create(array $data)
{
$user = User::create([
'name' => $data['name'],
'email' => $data['email'],
'password' => Hash::make($data['password']),
'role_id' => $data['role_id'],
]);
$roles = Role::all();
return compact('user', 'roles');
}
应该是这样
protected function create(array $data)
{
return User::create([
'name' => $data['name'],
'email' => $data['email'],
'password' => Hash::make($data['password']),
'role_id' => $data['role_id'],
]);
}