How sequelize works?

Question

I\'m trying to understand how sequelize works on a simple example : User can have many posts and post can have only one user.

First question, I don\'t know if I have to

Answer 1

You are right you have to manually set the foreign key relations.

Here is official documentation link : http://docs.sequelizejs.com/manual/tutorial/associations.html

You can try following code:

var user_object = require('your_file_path');
var post_object = require('your_file_path');

user_object.hasMany(post_object, {
    foreignKey: 'user_id',
    sourceKey: 'user_id',
    onDelete: 'cascade',
    as:'Posts',
});

post_object.belongsTo(user_object, {
    foreignKey: 'user_id',
    sourceKey: 'user_id',
    onDelete: 'cascade',
    as:'Posts',
});