The best way is to expand your model with class or instance methods:
var User = sequelize.define('User', {
username: { type: Sequelize.STRING, unique: true },
email: { type: Sequelize.STRING, unique: true },
password: Sequelize.STRING,
token: Sequelize.STRING
}, {
instanceMethods: {
comparePassword : function(candidatePassword, cb) {
bcrypt.compare(candidatePassword, this.getDataValue('password'), function(err, isMatch) {
if(err) return cb(err);
cb(null, isMatch);
});
},
setToken: function(){
// bla bla bla
// bla bla bla
},
getFullname: function() {
return [this.firstname, this.lastname].join(' ');
}
}
})
So when you do
User.build({ firstname: 'foo', lastname: 'bar' }).getFullname(); // 'foo bar'
So, to set the token, you can do it like this:
User.build({ ... }).setToken().save();
Or, to use the comparePassword function:
User.find({ ... }).success(function(user) { user.comparePassword('the password to check', function(err, isMatch) { ... } });
You can see this in the Sequelize docs
Edit
On recent versions of there are hooks for each model, you can check the hooks documentation which are very pretty straightforward and complement them with the class or instance methods.