app_usage_event.rb

module VCAP::CloudController
  class AppUsageEvent < Sequel::Model
    plugin :serialization

    export_attributes :state, :previous_state,
                      :memory_in_mb_per_instance, :previous_memory_in_mb_per_instance,
                      :instance_count, :previous_instance_count,
                      :app_guid, :app_name, :space_guid, :space_name, :org_guid,
                      :buildpack_guid, :buildpack_name,
                      :package_state, :previous_package_state, :parent_app_guid,
                      :parent_app_name, :process_type, :task_name, :task_guid

    def self.usage_lifecycle
      {
        beginning_state: ProcessModel::STARTED,
        ending_state: ProcessModel::STOPPED,
        guid_column: :app_guid
      }.freeze
    end

    AppUsageEvent.dataset_module do
      def supports_window_functions?
        false
      end
    end
  end
end