account_signup.rb

class AccountSignup
  def self.new(warden, acccount_params)
    account = Subscribem::Account.create(account_params)
    account.create_schema
    UserSignup.new(warden, account, account.owner)
  end
end
 

accounts_controller.rb

require_dependency "subscribem/application_controller"

module Subscribem
  class AccountsController < ApplicationController
    def new
      @account = Subscribem::Account.new
      @account.build_owner
    end

    def create
      AccountSignUp.new(env['warden'], params[:account])
      flash[:success] = "Your account has been successfully created."
      redirect_to subscribem.root_url(:subdomain => account.subdomain)
    end
  end
end

accounts_controller_spec.rb

require 'spec_helper'

describe Subscribem::AccountsController do
  context "creates the account's schema" do
    let!(:account) { stub_model(Subscribem::Account) }
    let!(:owner) { stub_model(Subscribem::User) }
    let!(:account_params) { { :account => { :name => "First Account" } } }

    specify do
      AccountSignUp.should_receive(:new).with(warden, account_params)
      post :create, params.merge(:use_route => :subscribem)
    end
  end
end

user_signin.rb

class UserSignin
  def self.new(warden, account, user)
    warden.set_user(user.id, :scope => :user)
    warden.set_user(account.id, :scope => :account)
  end
end

user_signup.rb

class UserSignup
  def self.new(warden, account, user)
    account.users << user
    UserSignIn.new(warden, account, user)
  end
end

users_controller.rb

require_dependency "subscribem/application_controller"

module Subscribem
  class Account::UsersController < ApplicationController
    def new
      @user = Subscribem::User.new
    end

    def create
      user = Subscribem::User.create(params[:user])
      UserSignUp.new(env['warden'], account, user)
      flash[:success] = "You have signed up successfully."
      redirect_to root_path
    end
  end
end