深入了解laravel雄辩的关系

Question

我遇到的问题分为两部分：

1）我正在尝试获取rsvps =登录user_id的特定事件。

2）然后过滤event_date＆lt; = today以获取过去的事件。

我被困在＃1上。我跑的时候

$favorites = Event::with('rsvps')->get(); 

我收到包含rsvps的所有事件，但是我无法根据rsvps信息对其进行过滤。

[
{"id":1,"user_id":"1","created_at":"2016-03-01 02:26:48","updated_at":"2016-03-01 02:26:48","event_name":"Awesome Event","event_venue":"The Rainbow Room","address":"612 Rachael Ln.","event_details":"Epic","event_date":"03\/12","image":"2016-03-01-02-26-48-heartHands.jpg","time":"8:00",
"rsvps":[
{"id":1,"created_at":"2016-03-01 02:28:39","updated_at":"2016-03-01 02:28:39","event_id":"1","user_id":"1"}]
},

{"id":2,"user_id":"1","created_at":"2016-03-01 02:40:05","updated_at":"2016-03-01 02:40:05","event_name":"New Event","event_venue":"My House","address":"612 Rachael Ln.","event_details":"Epic","event_date":"03\/01","image":"2016-03-01-02-40-05-img3.jpg","time":"8:00",
"rsvps":[
{"id":2,"created_at":"2016-03-01 02:40:12","updated_at":"2016-03-01 02:40:12","event_id":"2","user_id":"1"},

{"id":3,"created_at":"2016-03-01 22:21:33","updated_at":"2016-03-01 22:21:33","event_id":"2","user_id":"2"}
]}
]

当我运行测试以获取带有user_id = 1的rsvps：

时

$favorites = Event::with('rsvps')->find('id')->where('rsvps->user_id', '1')->get();

它给了我错误：调用成员函数where（）on null

有人可以告诉我一些我做错的线索吗？

Answer 1

您需要查询关系rsvps。您正在尝试查询events。

$favorites = Event::whereHas('rsvps', function($q) {
    $q->where('user_id', 1)
})->find('id');   // Passing in 'id' won't work here, it should be the actual id of an event.