Laravel通過中間表

Question

考慮以下數據庫方案獲得屬於關聯：

companies 
    -- id 
    -- name 

logos 
    -- id 
    -- active 
    -- company_id 
    -- image_id 

images 
    -- id 
    -- filename 
    -- path 
    -- type 

然後，我在模型關係定義是這樣的：

Company.php

public function logos() { 
    return $this->hasMany('App\Models\Logo'); 
} 

標誌.php

public function image() { 
    $this->belongsTo('App\Models\Image'); 
} 

現在我想要根據其標識和圖像得到具體的公司。於是，我就這樣把它拿來，但它引發錯誤：

Relationship method must return an object of type Illuminate\Database\Eloquent\Relations\Relation

CompanyController.php

public function show($id) { 
    $company = Company::findOrFail($id); 
    $requester = JWTAuth::parseToken()->toUser(); 
    if(!$requester->hasRole('noc') && $requester->company_id != $company->id) { 
     return $this->response->errorUnauthorized("You have no rights to view this company profile."); 
    } 

    // I am trying to fetch it this way // 
    $company->logos; 
    foreach ($company->logos as $logo) { 
     return $logo->image; 
    } 
    return $this->response->array(compact('company'))->setStatusCode(200); 
} 

誰能幫助我？ ：） 謝謝！

Answer 1

使用nested eager loading：

$company = Company::with('logos.image')->where('id', $id)->first();