admin_controller.rb

class AdminController < ApplicationController
  set_current_tenant_through_filter
  
  before_action :authenticate_user!

  before_filter :load_tenant
  
  def load_tenant
    begin
      tenant = if session[:current_tenant]
        # Retrieve the tenant
        Tenant.find(session[:current_tenant])
      elsif current_user.tenants.size > 0
        current_user.tenants.first
      else
        nil
      end

      if tenant
        set_tenant(tenant)
      else

      end
    rescue
      session[:current_tenant] = nil
      redirect_to destroy_user_session_url
    end
  end
  
  def set_tenant(tenant)
    set_current_tenant(tenant)
    session[:current_tenant] = tenant.id
  end

end