Mongoose text search with diacriticSensitive - node.js

Question

I have the following mongoose query:
User.find(
{
$text: {
$search: req.query.search,
$diacriticSensitive: true
}
},
{
score: {
$meta: "textScore"
}
}, function(err, results) {
if (err) {
next(err);
return;
}
return res.json(results);
});
The query leads to the following error message:
Can't canonicalize query: BadValue extra fields in $text
When I remove the "$diacriticSensitive: true" part from the query I get no error message, but only get exact matches.
What I want is when the user searches for "USERNA", but only the user "USERNAME" is available, this result should also be shown with a low score.
I am using Mongoose 4.3.5 and MongoDB 3.0.3.
MongoDB supports this attribute, doesn't Mongoose support it?

Answer 1

Per doc, $diacriticSensitive option is enable in mongodb v3.2
For articles document
{ "_id" : ObjectId("56d305dcc7ce7117db9b6da4"), "subject" : "Coffee Shopping", "author" : "efg", "view" : 5 }
{ "_id" : ObjectId("56d305e9c7ce7117db9b6da5"), "subject" : "Coffee and cream", "author" : "efg", "view" : 10 }
{ "_id" : ObjectId("56d305fec7ce7117db9b6da6"), "subject" : "Baking a cake", "author" : "abc", "view" : 50 }
Here are my test codes
var ArticleSchema = new mongoose.Schema({
subject: String,
author: String,
view: Number,
score: Number,
});
ArticleSchema.index({subject: 'text'});
var article = mongoose.model('article', ArticleSchema);
function queryText() {
article
.find({$text: {$search: 'Coffee', $diacriticSensitive: true}},
{score: {$meta: 'textScore'}})
.exec(function(err, doc) {
if (err)
console.log(err);
else
console.log(doc);
});
}
Result:
{ "_id" : ObjectId("56d305dcc7ce7117db9b6da4"), "subject" : "Coffee Shopping", "author" : "efg", "view" : 5, "score" : 0.75 }
{ "_id" : ObjectId("56d305e9c7ce7117db9b6da5"), "subject" : "Coffee and cream", "author" : "efg", "view" : 10, "score" : 0.75 }