在Laravel 5.6中同时插入父项和子项

我试图在

users

和

user\u details

表中同时插入数据。见以下代码：

型号：

class User extends Authenticatable
{
    public function user_detail() {
        return $this->hasOne('App\UserDetail', 'user_id');
    }
}

<div class="form-group{{ $errors->has('username') ? ' has-error' : ''}}">
    {!! Form::label('username', 'Username:* ', ['class' => 'col-md-4 control-label']) !!}
    <div class="col-md-6">
        {!! Form::text('username', null, ['class' => 'form-control', 'required' => 'required']) !!}
        {!! $errors->first('username', '<p class="help-block">:message</p>') !!}
    </div>
</div>
...
<div class="form-group{{ $errors->has('user_detail[about_me]') ? ' has-error' : ''}}">
    {!! Form::label('user_detail[about_me]', 'About Me: ', ['class' => 'col-md-4 control-label']) !!}
    <div class="col-md-6">
        {!! Form::textarea('user_detail[about_me]', null, ['class' => 'form-control', 'required' => 'required']) !!}
        {!! $errors->first('user_detail[about_me]', '<p class="help-block">:message</p>') !!}
    </div>
</div>

public function store(Request $request) {
    $data = $request->except('password'); //dd($data);
    $user = User::create($data);
    $user->user_detail->create($data['user_detail']);
}

查看：

class User extends Authenticatable
{
    public function user_detail() {
        return $this->hasOne('App\UserDetail', 'user_id');
    }
}

<div class="form-group{{ $errors->has('username') ? ' has-error' : ''}}">
    {!! Form::label('username', 'Username:* ', ['class' => 'col-md-4 control-label']) !!}
    <div class="col-md-6">
        {!! Form::text('username', null, ['class' => 'form-control', 'required' => 'required']) !!}
        {!! $errors->first('username', '<p class="help-block">:message</p>') !!}
    </div>
</div>
...
<div class="form-group{{ $errors->has('user_detail[about_me]') ? ' has-error' : ''}}">
    {!! Form::label('user_detail[about_me]', 'About Me: ', ['class' => 'col-md-4 control-label']) !!}
    <div class="col-md-6">
        {!! Form::textarea('user_detail[about_me]', null, ['class' => 'form-control', 'required' => 'required']) !!}
        {!! $errors->first('user_detail[about_me]', '<p class="help-block">:message</p>') !!}
    </div>
</div>

public function store(Request $request) {
    $data = $request->except('password'); //dd($data);
    $user = User::create($data);
    $user->user_detail->create($data['user_detail']);
}

错误消息：

class User extends Authenticatable
{
    public function user_detail() {
        return $this->hasOne('App\UserDetail', 'user_id');
    }
}

<div class="form-group{{ $errors->has('username') ? ' has-error' : ''}}">
    {!! Form::label('username', 'Username:* ', ['class' => 'col-md-4 control-label']) !!}
    <div class="col-md-6">
        {!! Form::text('username', null, ['class' => 'form-control', 'required' => 'required']) !!}
        {!! $errors->first('username', '<p class="help-block">:message</p>') !!}
    </div>
</div>
...
<div class="form-group{{ $errors->has('user_detail[about_me]') ? ' has-error' : ''}}">
    {!! Form::label('user_detail[about_me]', 'About Me: ', ['class' => 'col-md-4 control-label']) !!}
    <div class="col-md-6">
        {!! Form::textarea('user_detail[about_me]', null, ['class' => 'form-control', 'required' => 'required']) !!}
        {!! $errors->first('user_detail[about_me]', '<p class="help-block">:message</p>') !!}
    </div>
</div>

public function store(Request $request) {
    $data = $request->except('password'); //dd($data);
    $user = User::create($data);
    $user->user_detail->create($data['user_detail']);
}

在上面，我已经发布了我的代码（删除了rest字段。只保留用户表

username

和用户详细信息

about\u me

）

在我的上述代码中，数据成功插入

用户

表，但插入子表时出错

---

请查看我的代码并建议我如何在子表中插入记录。

错误的代码是

$user->user\u detail

。它必须是

null

或

UserDetail

的实例，因为您现在创建了user

$user->user\u detail

它必须是

null

。您必须使用

$user->user\u detail（）

而不是

$user->user\u detail

。更正的代码是

public function store(Request $request) 
{
    $data = $request->except('password');
    $user = User::create($data);
    if ($user) {
        $user->user_detail()->create($data['user_detail']);
    }
}

---

您还必须确保

$data['user\u detail']

是数组，否则可能会重复