我有一个MongoDB的NodeJS应用程序。我想结合以下两个操作,但我遇到了麻烦。
将字段限制为仅名称:
collection.find({}, {fields: {name:1}}, function(err, cursor){
res.json(cursor);
});
输出:
[
{
_id: "565c9f1ad5015e516ea99b91",
name: "Kenneth"
},
{
_id: "5668ea4646175538320c1ad7",
name: "George"
}
]
要对我使用的值进行排序:
var options = {"sort": "name"}
collection.find({}, options, function(err, cursor){
res.json(cursor);
});
输出:
[
{
_id: "5668ea4646175538320c1ad7",
email: "george@gmail.com",
name: "George"
},
{
_id: "565c9f1ad5015e516ea99b91",
email: "kenneth@gmail.com",
name: "Kenneth"
}
]
基本上我想要以下内容:
[
{
_id: "5668ea4646175538320c1ad7",
name: "George"
},
{
_id: "565c9f1ad5015e516ea99b91",
name: "Kenneth"
}
]
答案 0 :(得分:3)
只需将两个选项(fields
和sort
)合并为一个对象:
var options = {
fields: { name: 1 },
sort: "name"
};
collection.find({}, options, function(err, cursor) {
res.json(cursor);
});