node.js 在猫鼬中查找一个子文档
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findOne Subdocument in Mongoose
提问by JohnnyHK
I am attempting a findOne query in Mongoose on a subdocument but I'm not having much luck...
我正在 Mongoose 中的子文档上尝试 findOne 查询，但我运气不佳......
My Schema looks like this:
我的架构如下所示：
var Team = mongoose.Schema({
teamName: String,
teamURL: String,
teamMembers: [{username: String, password: String, email: String, dateCreated: Date}],
});
var Team = db.model('Team', Team);
I need to simply find the users email from the document in which I am using this query
我只需要从我使用此查询的文档中找到用户的电子邮件
Team.findOne({'teamMembers.username': 'Bioshox'}, {'teamMembers.$': 1}, function (err, team) {
if (team) {
console.log(team[1].email);
}
});
Any help would be appreciated!
任何帮助，将不胜感激！
回答by JohnnyHK
You're missing the teamMemberslevel of your object, so your code needs to change to something like this:
您缺少teamMembers对象的级别，因此您的代码需要更改为如下所示：
Team.findOne({'teamMembers.username': 'Bioshox'}, {'teamMembers.$': 1},
function (err, team) {
if (team) {
console.log(team.teamMembers[0].email);
}
}
);
