筛选一个多态表

Question

基本上我已经一个多态表如下：

Polytable 
-------- 

id 
type 
polyable_type 
polyable_id 

而woly Eloquent态类如下：

class poly extends Eloquent { 
    .... //eloquent attributes and stuff 

    public function polyable() 
    { 
     return $this->morphTo(); 
    } 
} 

而woly Eloquent标准类是如下：

class woly extends Eloquent{ 
    ... //skipped most eloquent stuff 

    public function poly() 
    { 
     return $this->morphMany('poly','polyable'); 
    } 
    public function polyTypeOne() 
    { 
     return $this->poly()->where('type','=','1')->get(); 
    } 
} 

现在，我想要woly的多态关系poly()仅返回Polytable中type列为1的项目。

到目前为止，我已经打了到数据库性能问题，与功能使用polyTypeOne功能

$wollies = woly::all(); 
foreach($wollies as $w) 
{ 
    $w->polyTypeOne = $w->polyTypeOne(); 
} 

什么是执行这种功能的最佳途径polyTypeOne()

实例？

Answer 1

public function polyTypeOne() 
{ 
    return $this->poly()->where('type','=','1'); 
} 

// usage 
$wollies = Woly::with('polyTypeOne')->get(); 

// pretty much the same as: 
$wollies = Woly::with(['poly' => function ($q) { 
    $q->where('type', 1); 
}])->get();