filter Sequelize belongsToMany - node.js

Question

I have the following problem:
I defined my tables (product and collection) like this:
module.exports = (sequelize, type) => {
return sequelize.define('product', {
id: {
type: type.UUID,
primaryKey: true,
defaultValue: type.UUIDV4,
},
title: {
type: type.STRING,
allowNull: false,
},
description: {
type: type.TEXT,
allowNull: false,
},
width: {
type: type.FLOAT,
allowNull: false,
},
height: {
type: type.FLOAT,
allowNull: false,
},
weight: {
type: type.FLOAT,
allowNull: false,
},
length: {
type: type.FLOAT,
allowNull: false,
},
vendor: {
type: type.STRING,
allowNull: false,
},
status: {
type: type.ENUM,
values: ['inactive', 'active'],
defaultValue: 'active',
allowNull: false,
},
})
}
module.exports = (sequelize, type) => {
return sequelize.define('collection', {
id: {
type: type.UUID,
primaryKey: true,
defaultValue: type.UUIDV4,
},
name: {
type: type.STRING,
allowNull: false,
},
image: {
type: type.STRING,
allowNull: true,
},
createdAt: {
type: type.DATE,
allowNull: false,
},
updatedAt: {
type: type.DATE,
allowNull: false,
},
status: {
type: type.ENUM,
values: ['inactive', 'active'],
defaultValue: 'active',
allowNull: false,
},
})
}
Then, I need associated the tables (product and collection) with belongsToMany association and i did it like this:
const ProductModel = require('../api/product/model')
const CategoryModel = require('../api/category/model')
const Product = ProductModel(sequelize, Sequelize)
const Collection = CollectionModel(sequelize, Sequelize)
Product.belongsToMany(Collection, {
through: ProductCollection,
foreignKey: 'productId',
otherKey: 'collectionId',
unique: false,
})
Collection.belongsToMany(Product, {
through: ProductCollection,
foreignKey: 'collectionId',
otherKey: 'productId',
unique: false,
})
Now, i want to get all the products of a collection given by the id sent from the body of the request, i have little time working with sequelize and i don´t know how to do this kind of query.
Can you help me with that?

Answer 1

you can use something like this
let products = Collection.findAll({
where: {
id: collection.id,
},
attributes: ['id', 'name'],
include: [{
model: Product,
through: {
model: ProductCollection,
},
as: 'products',
attributes: ['id', 'title', 'description']
}],
});
return products
hope it helps