Node.js Node-Mongo DB-如何查询特定的嵌套字段
简而言之:我使用mongodb为我的node express应用程序设置会话身份验证。如果用户在数据库中已有有效会话实体,则不应创建新会话。现在,我想查询会话集合中的特定用户id 收集 该集合如下所示:Node.js Node-Mongo DB-如何查询特定的嵌套字段,node.js,mongodb,mongodb-query,Node.js,Mongodb,Mongodb Query,简而言之:我使用mongodb为我的node express应用程序设置会话身份验证。如果用户在数据库中已有有效会话实体,则不应创建新会话。现在,我想查询会话集合中的特定用户id 收集 该集合如下所示: {"_id":"HbAE-qMXPWl7C8tDUnC****q8OoEf76vN","expires":{"$date":{"$numberLong":"1576133617190"}},"session":"{\"cookie\":{\"originalMaxAge\":86399999,\
{"_id":"HbAE-qMXPWl7C8tDUnC****q8OoEf76vN","expires":{"$date":{"$numberLong":"1576133617190"}},"session":"{\"cookie\":{\"originalMaxAge\":86399999,\"expires\":\"2019-12-12T06:36:29.898Z\",\"secure\":false,\"httpOnly\":true,\"path\":\"/\",\"sameSite\":true},\"user\":{\"uid\":\"5df08a1b8a60c174840d2986\"}}"}
我的查询如下所示:
public async compareSessionIds(uid: string, sid: string) {
//uid is: 5df08a1b8a60c174840d2986 ==> the same as in the entity
const user: User | null = await this.connectionManager.db('users').collection<User>('sessions').findOne({uid: uid} as any);
console.log('user found: ', user); // user found: null
return user && user._id === sid;
}
.findOne({"session.user.uid": uid});
public异步比较会话ID(uid:string,sid:string){
//uid为:5df08a1b8a60c174840d2986==>与实体中的相同
const user:user | null=wait this.connectionManager.db('users').collection('sessions').findOne({uid:uid}如有);
console.log('user-found:',user);//user-found:null
返回用户&&user.\u id==sid;
}
但是我的查询每次都返回
null
,所以我假设我的查询是错误的。如何在mongodb中正确查询特定嵌套字段?您的查询应如下所示:
public async compareSessionIds(uid: string, sid: string) {
//uid is: 5df08a1b8a60c174840d2986 ==> the same as in the entity
const user: User | null = await this.connectionManager.db('users').collection<User>('sessions').findOne({uid: uid} as any);
console.log('user found: ', user); // user found: null
return user && user._id === sid;
}
.findOne({"session.user.uid": uid});
因为,uid
处于会话中。用户
!希望能有帮助