外键猫鼬

Question

我开始与猫鼬，我想知道如何做这种类型的配置：

配方有不同的成分

我有我的两个型号：

成分和配方：

var mongoose = require('mongoose'); 
var Schema = mongoose.Schema; 

var IngredientSchema = new Schema({ 
    name: String 
}); 

module.exports = mongoose.model('Ingredient', IngredientSchema); 


var mongoose = require('mongoose'); 
var Schema = mongoose.Schema; 

var RecipeSchema = new Schema({ 
    name: String 
}); 

module.exports = mongoose.model('Recipe', RecipeSchema); 

Answer 1

检查下面的代码更新，特别是这部分：{类型：Schema.Types.ObjectId，REF： '成分'}

var mongoose = require('mongoose'); 
var Schema = mongoose.Schema; 

var IngredientSchema = new Schema({ 
    name: String 
}); 

module.exports = mongoose.model('Ingredient', IngredientSchema); 


var mongoose = require('mongoose'); 
var Schema = mongoose.Schema; 

var RecipeSchema = new Schema({ 
    name: String, 
    ingredients:[ 
     {type: Schema.Types.ObjectId, ref: 'Ingredient'} 
    ] 
}); 

module.exports = mongoose.model('Recipe', RecipeSchema); 

拯救：

var r = new Recipe(); 

r.name = 'Blah'; 
r.ingredients.push('mongo id of ingredient'); 

r.save();