How to add foreign key using sequelize mysql - mysql

Question

"I have 2 tables "Users" and "Profile_personals". How do I add a foreign key constraint to my profile personals using my "user_id" primary that's inside my Users table? I'm working with node.js, sequelize mysql.
Users(parent Table):
const Sequelize = require('sequelize')
const db = require("../database/db.js")
module.exports = db.sequelize.define(
"users",
{
user_id: {
type: Sequelize.INTEGER,
primaryKey: true,
autoIncrement: true
},
email: {
type: Sequelize.STRING
},
password: {
type: Sequelize.STRING
}
},
{
timestamps: false
}
)
Personals(Child Table):
const Sequelize = require('sequelize')
const db = require("../database/db.js")
module.exports = db.sequelize.define(
'profile_personals',
{
id: {
type: Sequelize.INTEGER,
primaryKey: true,
autoIncrement: true
},
biography: {
type: Sequelize.STRING
}
},
{
timestamps: false
}
)

Answer 1

Do it this way, I hope it's what you're looking for.
module.exports = db.sequelize.define(
'profile_personals',
{
id: {
type: Sequelize.INTEGER,
primaryKey: true,
autoIncrement: true
},
biography: {
type: Sequelize.STRING
},
// It is possible to create foreign keys:
user_id: {
type: Sequelize.INTEGER,
references: {
// This is a reference to another model
model: Users,
// This is the column name of the referenced model
key: 'user_id'
}
}
},
{
timestamps: false
}
);