我有一个expressjs路由器,它使用mongoose findById方法查看MongoDB集合。它返回一个对象,该对象内部存在一个具有用户ID的userHasSelected数组。我不想返回用户ID,但只需检查数组中是否存在当前用户(发出请求的用户)。如果他是,则返回true而不是返回用户ID。
路由器中的verifytoken中间件向请求添加了一个用户ID属性。该用户ID在获取路由器消息中可用-我可以通过某种方式将其传递给Mongoose模式吗?
//我的路由器
router.get('/challenge/:challengeId', verifyToken ,function (req, res){
//+ Return one challenge and its options
//- Check if userId is set to options and winner properties
let userId = req.userId;
console.log(userId);
let challengeId = req.params.challengeId;
Challenge.findById(challengeId, (err, suc)=>{
if(err){
res.status(304).send(err);
}
Challenge.
res.status(200).send(suc);
});
})
//和猫鼬模式
const mongoose = require('mongoose');
var Schema = mongoose.Schema;
//Optionsschema is use in the ChallengeSchema
var OptionSchema = new Schema({
name: { type: String},
isCorrect : { type: Boolean },
description: { type: String },
image : { type : String },
userHasSelected : { type : Object, get : returnUserChallengeStatus}
})
OptionSchema.set('toObject', { getters: true });
OptionSchema.set('toJSON', { getters: true });
var ChallengeSchema = new Schema({
shortEventId : String,
organization: String,
name: String,
winner: String,
options : [OptionSchema]
});
ChallengeSchema.set('toObject', { getters: true });
ChallengeSchema.set('toJSON', { getters: true });
ChallengeSchema.virtual('born').get(function(value) {
return this.name + "plus andet"
});
module.exports = mongoose.model('challenge', ChallengeSchema);
再说一次-我不想从userHasSelected数组返回用户ID-只检查他是否在那里,如果是,请使用getter或方法将value设置为true。
更新后的说明 findById返回此对象/文档
{
"_id":"5b86dc5bfb6fc03893e55001",
"shortEventId": "d2d3",
"organization": "Braedstrup",
"name": "1. december",
"winner": "5b864cbaa9ce291b148ddd6d",
"options": [
{
"name": "Matas",
"isCorrect": "true",
"description": "Matas er byens førende indenfor pleje og Matas er byens førende indenfor pleje og omsorg Matas er byens førende indenfor pleje og omsorg",
"image": "https://cityxpstorage.blob.core.windows.net/images/Matas.png",
"userHasSelected": [
{
"userId": "5b864cbaa9ce291b148ddd6d"
}
]
},
{
"name": "Føtex",
"isCorrect": "false",
"description": "Føtex er en dejlig butik",
"image": "https://cityxpstorage.blob.core.windows.net/images/Føtex.png"
},
{
"name": "Kvickly",
"isCorrect": "false",
"description": "Kvickly er en dejlig butik",
"image": "https://cityxpstorage.blob.core.windows.net/images/Matas.png"
},
{
"name": "MC Jørgensen",
"isCorrect": "false",
"description": "MC Jørgensen er en dejlig butik",
"image": "https://cityxpstorage.blob.core.windows.net/images/Matas.png"
}
],
"startDate": "2018-10-06T00:00:00.000Z",
"endDate": "2018-10-06T23:59:00.000Z"
}
因此,嵌套数组'userHasSelected'包含有关用户ID的信息。我不想发送该邮件,而是希望发送一个{userId:true}。 我读过,吸气剂能够处理传出数据。
可能的解决方案
像这样将对象返回给客户端之前,我可以在路由器的get方法中进行检查
// If user is in array set user to true. I would like to move this responsibility to the schema / document.
suc.options.forEach(option => {
if(Array.isArray(option.userHasSelected))
option.userHasSelected = {userId : true}
});
但是我真的希望模式对此负责-可能吗?
答案 0 :(得分:0)
我遇到了类似的问题并找到了解决方法。只需在您负责的模态模式上创建一个可选字段,我们称之为“状态”。在您的控制器上,检查您的数组是否包含请求的用户 ID 并写入该字段。例如;
在你的架构上;
caseStatus: {
type: Boolean,
required: false
},
voters: [{
type: mongoose.Schema.Types.ObjectId,
ref: 'User',
}],
然后在您的控制器上;
let theCase = await Case.find({speciality: res.locals.user_speciality }).exec();
let status = theCase.voters.includes(res.locals.user_id);
caseItem.caseStatus = status;