如何从关系中删除项目

Question

我有一个具有hasOne关系的模型，

public function geoTournee()
    {
        return $this->hasOne(GeoTournee::class, 'id_tournee','id_tournee');
    }

我已经加载了该关系，并希望从集合中删除一个项目。

这是之后的结果，我只想获取行程内容，然后删除geo_tounee和其他字段。

"geo_tournee": {
            "id_geo_tournee": 46,
            "itineraire": [
                {
                    "lat": 8000,
                    "lon": 3000,
                    "date": "2020:04:21 16:58:23"
                },
                {
                    "lat": 8000,
                    "lon": 3000,
                    "date": "2020:04:21 16:58:23"
                },
                {
                    "lat": 8000,
                    "lon": 3000,
                    "date": "2020:04:21 16:58:23"
                },
                {
                    "lat": 5000,
                    "lon": 9000,
                    "date": "2020:04:21 16:58:23"
                },
                {
                    "lat": 5000,
                    "lon": 9000,
                    "date": "2020:04:21 16:58:23"
                },
                {
                    "lat": 5000,
                    "lon": 9000,
                    "date": "2020:04:21 16:58:23"
                }
            ],
            "id_tournee": 33,
            "created_at": "2020-04-23 18:10:32",
            "updated_at": "2020-04-23 22:26:53"

任何想法做到这一点！

Answer 1

您需要执行以下操作：

return $this->hasOne(GeoTournee::class, 'id_tournee','id_tournee')->select(['id_tournee', 'itineraire']);

您也可以尝试快速加载：

$user = App\User::with(['geoTournee' => function ($query) {
    $query->select('itineraire');
}])->get();

或以下

App\User::with('geoTournee:itineraire')->get();