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我似乎無法在貓鼬中增加嵌套值。我已經嘗試了多次修訂,我已經在網上找到了,而且沒有任何修改。我正在使用mongodb 3.2版和mongoose 4.9.5。似乎無法在貓鼬中增加嵌套值
該項目是一個論壇。有一個帶有「posts」屬性的線程,它是一個數組。每個帖子都有一個「喜歡」屬性,每個人都喜歡該帖子,並擁有一個「用戶」屬性,每個更新都會增加一個計數屬性。這是我的型號:
const threadSchema = mongoose.Schema({
title: {type: String, required: true},
date: {type: Date, default: Date.now},
author: {type: String, required: true},
content: {type: String},
posts: [{
content: {type: String, required: true},
user: {type: String, required: true},
created: {type: Date, default: Date.now},
likes: {
users: [String],
count: {type: Number, default: 0}
},
comments: [{
comment: {type: String},
user: {type: String},
created: {type: Date, default: Date.now},
likes: {type: Number, default: 0}
}]
}]
});
這裏是我的更新代碼。據推到posts.likes.users排列得很好,但不會增加:
Threads.findOneAndUpdate({"posts._id": req.body.postId}, {"$push": {"posts.$.likes.users": user}}, {$inc: {"posts.$.likes.count": 1}})
我也曾嘗試這些版本:
{"$inc": {"posts.likes.count": 1}}
{"$inc": {"posts.$.likes.count": 1}}
{"$inc": {"posts.$.likes.$.count": 1}}
感謝。