#249 Notifications in Rails 3

Jan 17, 2011 | 10 minutes | Rails 3.0

Rails 3 comes with instrument support through the ActiveSupport::Notifications class. Call "subscribe" to listen to notifications, and "instrument" to send them.

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          config/initializers/notifications.rb
        
ActiveSupport::Notifications.subscribe "process_action.action_controller" do |name, start, finish, id, payload|
  PageRequest.create! do |page_request|
    page_request.path = payload[:path]
    page_request.page_duration = (finish - start) * 1000
    page_request.view_duration = payload[:view_runtime]
    page_request.db_duration = payload[:db_runtime]
  end
end

ActiveSupport::Notifications.subscribe "products.search" do |name, start, finish, id, payload|
  Rails.logger.debug "SEARCH: #{payload[:search]}"
end

          models/product.rb
        
ActiveSupport::Notifications.instrument("products.search", :search => search)