Laravel 5.4项目不会将表单输入发送到迁移中

Question

我用User表和其他从Users表扩展的迁移创建了Laravel 5.4项目。但是，当我为用户创建个人数据时，不会出现错误，并且该数据也不会创建personal_details迁移。

控制器

<?php

public function store(Request $request)
{
    //
    $this->validate($request, [
        'firstname' => 'required',
        'middlename' => 'required',
        'lastname' => 'required',
        'gender' => 'required',
        'nationality' => 'required',
        'district_of_birth' => 'required',
        'date_of_birth' => 'required',
        'marital_status' => 'required',
        'user_id' => 'required'
    ]);

    PersonalDetail::create([
        'firstname' => request('firstname'),
        'lastname' => request('lastname'),
        'middlename' => request('middlename'),
        'gender' => request('gender'),
        'nationality' => request('nationality'),
        'date_of_birth' => request('date_of_birth'),
        'district_of_birth' => request('district_of_birth'),
        'marital_status' => request('marital_status'),
        'user_id' => auth()->id()
    ]);
    $personalDetail = new PersonalDetail;
    $personalDetail->save();

    return redirect()->route('pages.personaldata.index')
        ->with('success', 'Personal Details created successfully');
}

模型

class PersonalDetail extends Model
{
    public function user()
    {
        return $this->belongsTo('App\User');
    }

    protected $fillable = [
        'firstname',
        'middlename',
        'lastname',
        'gender',
        'nationality',
        'district_of_birth',
        'date_of_birth',
        'marital_status',
        'user_id'
    ];
}

迁移

public function up()
{
    Schema::create('personal_details', function (Blueprint $table) {
        $table->increments('id');
        $table->string('firstname', 255);
        $table->string('lastname', 255);
        $table->string('middlename', 255);
        $table->string('gender', 255);
        $table->string('nationality', 255);
        $table->date('date_of_birth', 255);
        $table->string('district_of_birth', 255);
        $table->string('marital_status', 255);
        $table->integer('user_id')->unsigned();
        $table->foreign('user_id')->references('id')->on('users')->onDelete('cascade');
        $table->timestamps();
    });
}