_id的Mongoose findOne嵌入式文档 [英] Mongoose findOne embedded document by _id
本文介绍了_id的Mongoose findOne嵌入式文档的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我正在尝试将菜单推送到嵌入式文档.但是我在餐厅没有定义findOne.我只想将一些文档推送到餐厅的菜单类别中.如您在架构中所见:
I am trying to push menus to the embedded document. But I am getting not defined findOne in restaurant. I just want to push some documents into the restaurant's menu categories. As you can see in the schema:
var RestaurantSchema = new mongoose.Schema({
contactTelphone : String,
address : String,
branchID : String,
email : String,
restaurantName : String,
userID : String,
menuCategory : [MenuCategorySchema]
});
var MenuCategorySchema = new mongoose.Schema({
menuCategory : String,
menuCategoryAlt : String,
sequence : Number,
menus : [MenuSchema],
restaurantInfo : { type: Schema.Types.ObjectId, ref: 'Restaurant' },
});
var MenuSchema = new mongoose.Schema({
foodName : String,
foodNameAlt : String,
picName : String,
price : String,
rating : Number,
menuSequence : Number,
category : { type: Schema.Types.ObjectId, ref: 'MenuCategory' },
});
exports.menuForMenuCategory = function(newData, callback)
{
console.log(newData);
var menuCategoryId = newData.menuCategoryId;
var restaurantId = newData.restaurantId;
var newMenu = new Menu({
foodName : newData.foodName,
foodNameAlt : newData.foodNameAlt,
picName : newData.picName,
price : newData.price,
cookingCategory : newCookingCategory,
dishSpecial : newDishSpeical
});
Restaurant.findOne( {'_id' : restaurantId }, function(err, restaurant){
if (!err) {
//Is it how to do this? It says "findOne not defined"
restaurant.findOne( "_id" : menuCategoryId, function(err, category){
category.push(newMenu);
});
}
});
}
推荐答案
子文档具有.id()方法,因此您可以执行以下操作:
Subdocuments have an .id() method so you can do this:
myModel.findById(myDocumentId, function (err, myDocument) {
var subDocument = myDocument.mySubdocuments.id(mySubDocumentId);
});
请参见 http://mongoosejs.com/docs/subdocs.html 以供参考.
这篇关于_id的Mongoose findOne嵌入式文档的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!
查看全文