elliette

Defining Many-to-Many Associations in Sequelize

Reference: Sequelize docs on association

Let’s say we have two models: Films and Festivals

We know that a film can be shown at many film festivals and that, conversely, a festival can show many films. This is what is known as a many-to-many relationship.

Knowing this, we can set up our associations:

kndt84

const AWS = require('aws-sdk');
const CognitoUserPool = require('amazon-cognito-identity-js-node').CognitoUserPool;
const CognitoUserSession = require('amazon-cognito-identity-js-node').CognitoUserSession;
const CognitoUser = require('amazon-cognito-identity-js-node').CognitoUser;
const CognitoIdToken = require('amazon-cognito-identity-js-node').CognitoIdToken;
const CognitoAccessToken = require('amazon-cognito-identity-js-node').CognitoAccessToken;
const CognitoRefreshToken = require('amazon-cognito-identity-js-node').CognitoRefreshToken;

const cfg = require('config').config;
const COGNITO_IDENTITY_POOL_ID = cfg.COGNITO_IDENTITY_POOL_ID;

butaji

function S4() {
   return (((1+Math.random())*0x10000)|0).toString(16).substring(1);
}
function guid() {
   return (S4()+S4()+"-"+S4()+"-"+S4()+"-"+S4()+"-"+S4()+S4()+S4());
}