struct(User, params) does not transfer values

debug

09:52:35.045 request_id=oOTTwz6ywSK5RsianPnN [info] POST /users
RAW PARAMS
09:52:35.069 request_id=oOTTwz6ywSK5RsianPnN [debug] Processing by CloseBy.UserController.create
  Accept: text/html
  Parameters: %{"user" => %{"confirm_password" => "p", "email" => "[email protected]", "password" => "p"}}
%{"user" => %{"confirm_password" => "p", "email" => "[email protected]",
    "password" => "p"}}
THE CREATE PARAMS params["user"]
%{"confirm_password" => "p", "email" => "[email protected]", "password" => "p"}
09:52:35.192 request_id=oOTTwz6ywSK5RsianPnN [info] Sent 422 in 147ms

request_params.ex

%{"confirm_password" => "p", "email" => "[email protected]",
  "password" => "p"}

user.ex

defmodule User do
  use Ecto.Model

  schema "users" do
    field :email
    field :encrypted_password
    field :password, :virtual
    field :confirm_password, :virtual
  end

  validate user,
           email: present()

  def set_password(user, password, password_confirmation) do
    if (password == password_confirmation) do
      %{user | encrypted_password: encrypt_password(password), password: nil}
    else
      user
    end
  end

  defp encrypt_password(nil), do: nil
  defp encrypt_password(password), do: :erlpass.hash(password, 10)
end

user_controller.ex

defmodule CloseBy.UserController do
  use CloseBy.ApplicationController
  plug :action

  def create(conn, params) do
    user_params = params["user"] || %{}
    case User.Create.from_params(user_params) do
      { :ok, user } -> redirect conn, CloseBy.Router.Helpers.users_path(:show, user.id)
      { :error, results } -> conn |> put_status(422) |> render "new", results
    end
  end
end

user_create.ex

defmodule User.Create do

  def from_params(params) do
    password = params["password"]
    confirmation = params["confirm_password"]
    if password != confirmation do
      { :error, [{:password_confirmation, ["Does not match"]}] }
    end
    user = struct(User, params) 
    IO.puts("USER")
    IO.inspect(user)
    user = user |> User.set_password(password, confirmation)

    case User.validate(user) do
      [] ->
        user = CloseBy.Repo.insert(user)
        { :ok, user }
      errors ->
        { :error, [{:user, user}, {:errors, errors}] }
      end
    end
  end
end