node.js 外键猫鼬
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时间：2020-09-02 17:54:28 来源:igfitidea点击:
Foreign-key mongoose
提问by devtest654987
I begin with mongoose and I want to know how to do this type of configuration :
我从猫鼬开始，我想知道如何进行这种类型的配置：
a recipe got different ingredient
一个食谱有不同的成分
I got my two models:
我得到了我的两个模型：
Ingredient and Recipe :
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);
回答by Tim
Check Updated code below, in particular this part: {type: Schema.Types.ObjectId, ref: 'Ingredient'}
检查下面的更新代码，特别是这部分：{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);
To Save:
保存：
var r = new Recipe();
r.name = 'Blah';
r.ingredients.push('mongo id of ingredient');
r.save();
