- process a request based on subdomain 1. locale 2. view, images 3. some model level code calling for only harbin and cannon 4. load subdomain specific css/js file

application_controller.rb

class ApplicationController < ActionController::Base
  around_filter :scope_current_tenant
  after_filter :set_locale

  layout :tenant_layout
  prepend_view_path "app/views/#{current_tenant}"

  def current_tenant
    @current_tenant ||= Tenant.find_by_subdomain(request.subdomain)
  end
  helper_method :current_tenant

 private

  def scope_current_tenant(&block)
    if current_tenant.nil?
      redirect_to main_index_path
    else
      redirect_to main_index_path(current_tenant.id)
      current_tenant.scope_schema("public", &block) #it ensure model level code calling for only harbin and cannon
    end
  end

  def set_locale
    I18n.locale = current_tenant.locale.to_sym
  end

  def tenant_layout
    #load specific js/css for each layout
    current_tenant.layout_name
  end

end