How to define unique index on multiple columns in sequelize

Question

How do I define a unique index on a combination of columns in sequelize. For example I want to add a unique index on user_id, count and name.

var Tag = sequ         


        

Answer 1

If the accepted one is not working then try the below code. It worked for me in my case rather the accepted one.

var Tag = sequelize.define('Tag', {
    id: {
        type: DataTypes.INTEGER(11),
        allowNull: false,
        primaryKey: true,
        autoIncrement: true
    },
    user_id: {
        type: DataTypes.INTEGER(11),
        allowNull: false,
        unique: 'uniqueTag',
    },
    count: {
        type: DataTypes.INTEGER(11),
        allowNull: true,
        unique: 'uniqueTag',
    },
    name: {
        type: DataTypes.STRING,
        allowNull: true,
        unique: 'uniqueTag',
    }
});