我有两个mongoose架构
var mongoose = require('mongoose');
var Schema = mongoose.Schema;
var itemSchema = new Schema({
name: {type: String, required: true, max: 25, trim: true},
price: {type: Number, required: true, trim: true, default: 0},
tax: {
type: Schema.Types.ObjectId,
ref: "Store"
}
});
module.exports = mongoose.model('Item', itemSchema);
第二个架构
var mongoose = require('mongoose');
var Schema = mongoose.Schema;
var storeSchema = new Schema({
name: {type: String, required: true, trim: true},
taxes: [
{
name: String,
rate: Number
}
]
});
module.exports = mongoose.model('Store', storeSchema);
我想要做的是使用storeSchema tax对象数组填充itemSchema税对象 . 每当我将一个新的税收对象推送到tax数组时,mongoose就会创建一个ObjectId . 我将ObjectId存储在itemSchema Tax中 . 我想使用该_id来检索与itemSchema _id匹配的商店税 .
到目前为止,我已经尝试过这个,但我在税收属性中没有 .
Item.find().populate("tax", "taxes").exec(function (err, docs) {
if (err) return console.error(err);
console.log(items);
});
1 回答
试试这个查询