SailsJs beforeCreate method receives only the model properties on which required is set to true

This is a model in sails.js.

module.exports = {

    attributes: {
        name: {
            type: "string"
        },
        email: {
            type: "email",
            required: true
        },
        password: {
            type: "string"
        }
    },

    beforeCreate: function(values, next) {
        console.log(values); //logs {email:"mail@someplace.com"}
        console.log(values.email);    // logs the email id sent via post
        console.log(values.password);    // logs undefined is required is set to false, If required is set to true, password will log properly.
        next();
    }
};

I am planning to perform some encrypting of the password in the beforeCreate function, Of course I will be requiring the password and can continue with it right now but how to manage this for optional values just in case the need arises?