dry.rb

class UserForm
  include ActiveModel::Model

  attr_accessor :name, :phone_number
    :address1, :address2

  validate :name, presence: true

  def create_user
    User.create! do |u|
      u.name = name
      u.phone_number = phone_number
      u.address1 = address1
      u.address2 = address2
    end
  end

  def update_user(user)
    user.name = name
    user.phone_number = phone_number
    user.address1 = address1
    user.address2 = address2

    user.save 
  end
end