使用Iron Router进行waitOn订阅,该订阅取决于来自另一个订阅的文档中的数据 [英] Using Iron Router to waitOn subscription that's dependent on data from a doc that will come from another subscription
问题描述
我在配置路由的waitOn
部分时遇到麻烦,其中订阅的参数之一由来自不同订阅的文档中的值确定.
I'm having trouble configuring the waitOn
portion of a route where one of the subscription's parameters is determined by the value from a doc that comes from a different subscription.
正在播放的收藏是候选人和访谈.面试只有一名候选人.以下是一些示例数据:
The collections in play are Candidates and Interviews. An interview will have one and only one candidate. Here's some sample data:
candidate = {
_id: 1
firstName: 'Some',
lastName: 'Developer'
//other props
};
interview = {
_id: 1,
candidateId: 1
//other props
};
路由配置如下.
this.route('conductInterview', {
path: '/interviews/:_id/conduct', //:_id is the interviewId
waitOn: function () {
return [
Meteor.subscribe('allUsers'),
Meteor.subscribe('singleInterview', this.params._id),
// don't know the candidateId to lookup because it's stored
// in the interview doc
Meteor.subscribe('singleCandidate', ???),
Meteor.subscribe('questions'),
Meteor.subscribe('allUsers')
];
},
data: function () {
var interview = Interviews.findOne(this.params._id);
return {
interview: interview,
candidate: Candidates.findOne(interview.candidateId);
};
}
});
问题是我没有候选人ID传递给waitOn
方法中的singleCandidate
订阅,因为它存储在面试文档中.
The problem is that I don't have a candidateId to pass to the singleCandidate
subscription in the waitOn
method because it's stored in the interview doc.
我已经想到了两种可能的解决方案,但我真的不喜欢它们中的任何一种.首先是将路线更改为/interviews/:_id/:candidateId/conduct
之类的东西.第二个方法是对数据进行非规范化,并将应聘者的信息存储在面试文档中.
I've thought of two possible solutions, but I don't really like either of them. The first is to change the route to something like /interviews/:_id/:candidateId/conduct
. The second is to denormalize the data and store the candidate's info in the interview doc.
除了这两个以外还有其他选择吗?
Are there any other options to accomplish this besides those two?
推荐答案
您可以更改发布函数singleCandidate以将受访者ID作为参数而不是候选人ID并传递this.params._id
You can change your publish function singleCandidate to take interviewId as paramater instead of candidateId and pass this.params._id
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