Gems

ruby 1.9.3
rails 3.2.11
devise 2.2.3
acts_as_tenant 0.2.9

The code

All my models are limited to domain_id:

class User < ActiveRecord::Base
  acts_as_tenant(:domain)
  #...
end

Then, in my application_controller application, I installed the current tenant from the domain:

class ApplicationController < ActionController::Base
  set_current_tenant_through_filter
  before_filter :set_tenant
  protect_from_forgery
  #...

  def set_tenant
    #...
    @domain = Domain.find_or_create_by_name(request.host)
    set_current_tenant(@domain)
  end
end

Everything works well for all models, with the exception of sessions: Each time a page loads, it will exit the first user who loads the page with another tenant. By downloading this page, he will log out of the first user who [... etc.]

:, , Rails current_tenant = alice_domain (ok). , , , load current_tenant = bob_domain. , Rails current_tenant == bob_domain. Rails : bob_domain, Devise Alice . application_controller current_tenant = alice_domain... .

: act_as_tenant , , . , Devise . , act_as_tenant default_scope . , .

. .