如何在数组中查找作为架构中子元素的元素

Question

likes: {
        count:{type: Number, default: 0},
        authors:{type: [String], default: []}
    }

This is schema for the likes section. And I want to look if the given username is in the authors array or not? How to create query for this situation?

await Entry.findOne({ 'likes.authors': { $in: user.username },_id: entryId } )

I have created a query like this but I couldn't get the data while I have a data which has entryId and contains user.username inside of 'likes.authors' .

Answer 1

try this:

Entry.findOne({'likes.authors': {$elemMatch: {type: user.username}},_id:entryId});