Question

我尝试在当前查询中使用select获取相关模型，但是相关模型返回了null值。怎么了？

Ubuntu 18.04，PHP 7.1，Postgres 11，NGINX，Laravel 5.7

查询：

public function datesFind(Request $request)
{

    $games = Game::where('date_time_start', '<=', $request->get('date'))->where('date_time_end', '>=', $request->get('date'))
            ->where('sport_id', $request->get('sport_id'))->with('gameLevel')->get(['id', 'name', 'sport_id', 'date_time_start', 'date_time_end']);
    return $games;
}

结果：

[
    {
        "id": 135,
        "name": "Новая игра",
        "sport_id": 3,
        "date_time_start": "2019-01-25 00:00:00",
        "date_time_end": "2019-02-25 00:00:00",
        "game_level": null
    },

]

Answer 1

您必须在字段列表中包括外键才能加载关系...

更改：

$games = Game::where('date_time_start', '<=', $request->get('date'))
              ->where('date_time_end', '>=', $request->get('date'))
              ->where('sport_id', $request->get('sport_id'))
              ->with('gameLevel')
              ->get([
                  'id',
                  'name',
                  'sport_id',
                  'date_time_start',
                  'date_time_end'
              ]);

收件人：

$games = Game::where('date_time_start', '<=', $request->get('date'))
              ->where('date_time_end', '>=', $request->get('date'))
              ->where('sport_id', $request->get('sport_id'))
              ->with('gameLevel')
              ->get([
                  'id',
                  'name',
                  'sport_id',
                  'date_time_start',
                  'date_time_end',
                  'game_level_id' // or replace with your foreign key col name...
              ]);

如何在当前查询中使用select获得相关模型？

1 个答案: