initialize_database_middleware

# File railties/lib/initializer.rb, line 445
    def initialize_database_middleware
      if configuration.frameworks.include?(:active_record)
        if configuration.frameworks.include?(:action_controller) &&
            ActionController::Base.session_store.name == 'ActiveRecord::SessionStore'
          configuration.middleware.insert_before "ActiveRecord::SessionStore""ActiveRecord::SessionStore", ActiveRecord::ConnectionAdapters::ConnectionManagement
          configuration.middleware.insert_before "ActiveRecord::SessionStore""ActiveRecord::SessionStore", ActiveRecord::QueryCache
        else
          configuration.middleware.use ActiveRecord::ConnectionAdapters::ConnectionManagement
          configuration.middleware.use ActiveRecord::QueryCache
        end
      end
    end