【问题标题】:How can I join with Eloquent: Relationships?我如何加入 Eloquent: 关系?
【发布时间】:2017-07-27 06:38:52
【问题描述】:

我的查询是这样的:

<?php
public function getListReviews()
{
    $reviews = Review::where('user_id', auth()->user()->id)
                     ->get();
    return $reviews;
}

从查询中,可以通过id获取所有review数据

我想要获取用户照片、商店照片和产品照片

我想让它使用 Eloquent:Relationships

如何通过 Eloquent:Relationships 获得它?

我的评论模型是这样的:

<?php
namespace App;
use Jenssegers\Mongodb\Eloquent\Model as Eloquent;
use Jenssegers\Mongodb\Eloquent\HybridRelations;
class Review extends Eloquent
{
    use HybridRelations;
    protected $connection = 'mongodb';
    protected $fillable = ['user_id', 'user_name', 'product_id', 'product_name', 'store_id', 'store_name', 'invoice_number', 'rating', 'comments', 'created_at', 'updated_at'];
    public function user()
    {
        return $this->belongsTo(User::class);
    }
}

我的用户模型是这样的:

<?php
namespace App;
...
class User extends Authenticatable
{
    ...
    protected $fillable = ['name', 'email', 'password', 'birth_date', 'mobile_number', 'photo'];
    public function store()
    {
        return $this->hasOne(Store::class);
    }
}

我的店铺模型是这样的:

<?php
namespace App\Models;
use Illuminate\Database\Eloquent\Model;
class Store extends Model
{   
    protected $fillable = ['user_id', 'name', 'address', 'phones', 'total_product', 'photo'];
    public function products() 
    {
        return $this->hasMany(Product::class);
    }
}

我的产品型号是这样的:

<?php
namespace App\Models;
use Illuminate\Database\Eloquent\Model;
class Product extends Model
{
    protected  $fillable = ['store_id','category_id','name', 'photo','description'];
    public function store()
    {
        return $this->belongsTo(Store::class);
    }
}

【问题讨论】:

    标签: php laravel eloquent laravel-5.3 relationships


    【解决方案1】:

    如果您想从评论模型中找出产品和商店,请在Review 模型中添加两​​个方法,如下所示。

    编辑App\Review.php

    //You already have key to to find store i.e. store_id
    public function store()
    {
        return $this->belongsTo(Store::class);
    }
    
    
    //You already have key to to find product i.e. product_id    
    public function product()
    {
        return $this->belongsTo(Product::class);
    }
    

    然后执行如下查询

    $reviews = Review::where('user_id', auth()->user()->id)
               ->with('store')
               ->with('product')
               ->with('user')
               ->get();
    

    您可以通过以下方式访问它们,

    $review 遍历$reviews 对象

    $review->store->photo;
    $review->product->photo;
    $review->user->photo;
    

    【讨论】:

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