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Question

我从mongoose开始，我想知道如何进行这种配置：

食谱有不同的成分

我得到了两个模特：

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

检查下面的更新代码，特别是此部分： {type：Schema.Types.ObjectId，ref：'Ingredient'}

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);

保存：

var r = new Recipe();

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

r.save();