Laravel雄辩多对多？

Question

我需要帮助编写一个雄辩的查询语句，首先在zipcodes表中搜索城市，然后使用它发现的那些id找到存在于该zipcodes列表中的活动。

表： 邮编 - ID（表示邮政编码） - 城市

活动 - ID - 姓名 - zipcodes_id（它关系到拉链码表）

没关系，我终于想通出来。

 $zipcodes = Zipcodes::has('activities')->where('city', '=', $city)->get(); 
     foreach ($zipcodes as $zipcode) 
     { 
      echo $zipcode->activities; 
     } 

返回：

[{"id":1,"activity_type":2,"name":"Four Peaks Grill & Tap","zipcodes_id":85032}] 

Answer 1

没关系，我终于想通了。

$zipcodes = Zipcodes::has('activities')->where('city', '=', $city)->get(); 
foreach ($zipcodes as $zipcode) 
{ 
    echo $zipcode->activities; 
} 

返回：

[{"id":1,"activity_type":2,"name":"Four Peaks Grill & Tap","zipcodes_id":85032}]