Question

我试图将用户表中的用户ID作为外键存储在另一个汽车表中。用户表：

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

汽车桌：

    public function up()
{
    Schema::create('cars', function (Blueprint $table) {
        $table->string('plateno')->primary()->unique();
        $table->string('brand');
        $table->string('model');

        $table->string('user_id')->nullable();
        $table->foreign('user_id')->references('userid')->on('users')->onDelete('cascade')->onUpdate('cascade');

        $table->timestamps();
    });
}

用户模型和汽车模型之间存在1到1的关系。

class User extends Authenticatable

{ 使用可通知的；

 protected $fillable = [
    'userid', 'email', 'password',
];

protected $hidden = [
    'password', 'remember_token',
];

public function cars() 
{ 
    return $this->hasOne('App\Car', 'plateno' ); 
}

}

这是CarController的存储功能

    public function store(Request $request)
{
    $this->validate($request, [
        'plateno' => 'required',
        'brand' => 'required',
        'model' => 'required'
    ]);

    $cars= new \App\Car;
    $cars->plateno=$request->get('plateno');
    $cars->brand=$request->get('brand');
    $cars->model=$request->get('model');

    $cars=Auth::user()->userid;
    $cars->save();
    return redirect('car')->with('success', 'User car has been added.');
}

谢谢。

Answer 1

您在这里遇到错误：

$cars= new \App\Car;
$cars->plateno=$request->get('plateno');
$cars->brand=$request->get('brand');
$cars->model=$request->get('model');

$cars=Auth::user()->userid; // Here must be $cars->user_id = Auth::user()->userid;
$cars->save();

用$cars=Auth::user()->userid;替换$cars->user_id = Auth::user()->userId;;

从用户表保存用户ID并遇到错误：在字符串

1 个答案: