devtest654987
devtest654987

Reputation: 613

Creating a Foreign Key relationship in Mongoose

I'm beginning with Mongoose and I want to know how to do this type of configuration:

enter image description here

A recipe has different ingredients.

I have my two models:

Ingredient and Recipe:

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);

Upvotes: 61

Views: 76179

Answers (1)

Tim
Tim

Reputation: 2715

Check Updated code below, in particular this part: {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:

var r = new Recipe();

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

r.save();

Upvotes: 110

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