laravel模型关联评论

用户模型

public function show(Post $post,LogManager $log){   $post->load("comments"); //这种方式是预加载 ，如果没有这句，就是下面在模板加载的时候才进行模型查询   return view("post.show",compact(‘post‘));}

post模型

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;

class Post extends Model{    //

   protected $table = "posts";   public $primaryKey = ‘id‘;

   public function user()   {      return $this->belongsTo("App\Models\User","user_id",‘id‘);   }

   public function comments()   {      return $this->hasMany(‘App\Models\Comment‘,‘post_id‘,‘id‘)->orderBy("created_at",‘desc‘);   }}

comment模型

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;

class Comment extends Model{

   protected $table = ‘comments‘;

   public $primaryKey = ‘id‘;

   public function post()   {      return $this->belongsTo("App\Models\Post",‘post_id‘,‘id‘);   }

   public function user()   {      return $this->belongsTo("App\Models\User",‘user_id‘,‘id‘);   }}

最后 文章模型 想获取评论和评论用户 查找到post对象

@if(!empty($post->comments))    @foreach($post->comments as $item)        <ul class="list-group" style="padding-bottom:10px;">            <li class="list-group-item">                <h5>{{ $post->created_at }} by {{ $item->user->name }}</h5>                <div>                    {{ $item->content }}                </div>            </li>        </ul>    @endforeach    @endif

原文地址：https://www.cnblogs.com/php-linux/p/11689009.html