Transferring data from one model to another?

Question

Ruby on Rails

Hello, I'm using Ruby on Rails 5.2.3 and Mongoid 7.0
. I need to migrate :name and :image_url from User.rb to Profile.rb and there are empty fields in some posts, they don't need to be migrated.
User.rb

class User
  include Mongoid::Document

  field :name, type: String
  field :image_url, type: String

  has_many :profiles, dependent: :destroy
end

Profile.rb

class Profile
  include Mongoid::Document

  field :name, type: String
  field :image_url, type: String

  belongs_to :user, touch: true
end