Laravel 5.2 一對一 Eloquent 關系

Question

這里的場景是：

我有2張桌子。

1. User
2. Post

用戶可以登錄、登錄和注銷，他可以創建自己的個人資料，他可以更新它。

Post 表包含個人用戶信息，當用戶創建他的個人資料時，該表包含數據，用戶也可以從該表中更新數據。

問題是我可以創建用戶，但無法更新它。 我該如何解決這個問題？

 Undefined property:
 Illuminate\Database\Eloquent\Collection::$first_name (View:
 C:\xampp\htdocs\protfolio\resources\views\update.blade.php)

這是我的用戶模型：

<?php

namespace App;

use Illuminate\Foundation\Auth\User as Authenticatable;

class User extends Authenticatable
{

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


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

     public function post()
    {
        return $this->hasOne('App\Post'); 
    }
}

這是帖子模型：

<?php

namespace App;

use Illuminate\Database\Eloquent\Model;

class Post extends Model
{
     public function user()
    {
       return $this->belongsTo('App\User'); //Profile is your profile model
    }
}

這是后控制器：

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use Illuminate\Http\Response;
use App\Http\Requests;
use App\Post;
use App\User;
use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Facades\Storage;
use Illuminate\Support\Facades\File;

class PostController extends Controller
{


   public function getDashboard()
   {        
     $posts = Post::all();
          return view('dashboard',['posts'=>$posts]);  
    }


    public function postUpdate(Request $request)
    {
        $this->validate($request,[
            'first_name'=> 'required|max:120',
            'middle_name'=> 'required|max:120',
            'last_name' => 'required|max:120',
            'gender'=> 'required',
            'dob'=>'required',
            'nationality'=>'required',
            'nid'=>'required',
            'email' => 'required|email|unique:users',
            'phone_no'=>'required',
            'about_me'=>'required',
            ]);
        $post = Post::find($request['postId']);
        if (Auth::user() != $post->user) {
            return redirect()->back();
        }
         $post->first_name = $request['first_name'];
        $post->middle_name = $request['middle_name'];
        $post->last_name = $request['last_name'];
        $post->gender = $request['gender'];
        $post->dob = $request['dob'];
        $post->nationality = $request['nationality'];
        $post->nid = $request['nid'];
        $post->email = $request['email'];
        $post->phone_no = $request['phone_no'];
        $post->about_me = $request['about_me']; 
        $post->update();
        return redirect()->route('dashboard');        
    }

  public function postCreate(Request $request){
    $this->validate($request,[
      'first_name'=> 'required|max:120',
      'middle_name'=> 'required|max:120',
      'last_name' => 'required|max:120',
      'gender'=> 'required',
      'dob'=>'required',
      'nationality'=>'required',
      'nid'=>'required',
      'email' => 'required|email|unique:users',
      'phone_no'=>'required',
      'about_me'=>'required',
        ]);

    $post = new Post();
        $post->first_name = $request['first_name'];
        $post->middle_name = $request['middle_name'];
        $post->last_name = $request['last_name'];
        $post->gender = $request['gender'];
        $post->dob = $request['dob'];
        $post->nationality = $request['nationality'];
        $post->nid = $request['nid'];
        $post->email = $request['email'];
        $post->phone_no = $request['phone_no'];
        $post->about_me = $request['about_me'];        
      $message='There was an Error';
        if( $request->user()->post()->save($post)){
          $message = "Profile Created successfully";
        }
        return redirect()->route('dashboard')->with(['message' => $message]);

  }
}

這是用戶控制器：

<?php

namespace App\Http\Controllers;
use Illuminate\Http\Request;
use App\Http\Requests;
use App\User;
use App\Post;
use Illuminate\Support\Facades\File;
use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Facades\Storage;

class UserController extends Controller
{

    public function getAccount()
    {  

     $posts = Post::all();
        return view('update',['user'=>Auth::user()],['posts'=>$posts]);
    }

    public function getCreate()
      {        
        return view('create',['user'=>Auth::user()]);
      }
}

這是我的 update.blade.php

@extends('layouts.master')

    @section('content')
         @include('includes.message-block')
         <div class="container" >
                <h3> Create course </h3>
            {!! Form::open(array('route' => 'update','class'=>'form-horizontal','method'=>'POST'))  !!}
            {!! Form::token(); !!}
            {!!   csrf_field() ; !!} 
                <div class="form-group">
                    <label>First Name</label>
                    <input type="text" name="first_name" class="form-control"   value="{{$posts->first_name}}">
                </div>
                <div class="form-group">
                    <label>Middle Name</label>
                    <input type="text" name="middle_name" class="form-control"  value="{{$posts->middle_name}}">
                </div>
                <div class="form-group">
                    <label>Last Name</label>
                    <input type="text" name="last_name" class="form-control"   value="{{$posts->last_name}}">
                </div>

                <div class="form-group">
                    <label>Gender</label>
                    <select class="form-control" name="gender" value="{{$posts->gender}}">
                        <option>Male</option>
                        <option>Female</option>     
                    </select>
                </div>
                <div class="form-group">
                    <label> Date Of Birth</label>  
                    <input type="date" name="dob" class="form-control"  value="{{$posts->dob}}">
                </div>

                <div class="form-group">
                    <label>Nationality</label>
                    <input type="text" name="nationality" class="form-control"   value="{{$posts->nationality}}">
                </div>

                <div class="form-group">
                    <label>NID</label>
                    <input type="text" name="nid" class="form-control"   value="{{$posts->nid}}">
                </div>

                <div class="form-group">
                    <label>Email</label>
                    <input type="email" name="email" class="form-control"   value="{{$posts->email}}">
                </div>

                <div class="form-group">
                    <label>Phone</label>
                    <input type="text" name="phone_no" class="form-control"   value="{{$posts->phone_no}}">
                </div>

                <div class="form-group">
                    <label>About Me</label>
                    <textarea class="form-control" name="about_me"  rows="3">"{{$posts->about_me}}"</textarea>
                </div>


                <button type="submit" class="btn btn-default">Submit</button>
            {!! Form::close() !!}
            </div>

     @endsection

Answer 1

$posts->first()->first_name並在更新頁面中的所有其他變量中使用相同的

Answer 2

問題似乎與用戶模型類定義有關，請在此處嘗試以下代碼：

用戶模型

namespace App;

use Illuminate\Auth\Authenticatable;
use Illuminate\Database\Eloquent\Model;

class User extends Model
{
    use Authenticatable;
    ...

Answer 3

我認為你的問題在這里：

public function getAccount()
{  

 $posts = Post::all();
    return view('update',['user'=>Auth::user()],['posts'=>$posts]);
}

Post::all() 從您的表中獲取所有帖子，而不是屬於用戶的帖子。 （我假設這就是你想要的）。

要獲取與當前登錄用戶關聯的帖子，您可以嘗試以下操作：

$posts = Auth::user()->post