require_dependency 'version' module OpenProject::Costs::Patches::VersionPatch def self.included(base) # :nodoc: base.send(:include, InstanceMethods) base.class_eval do alias_method_chain :spent_hours, :inheritance end end module InstanceMethods def spent_hours_with_inheritance # overwritten method @spent_hours ||= TimeEntry.visible.sum(:hours, :include => :issue, :conditions => ["#{Issue.table_name}.fixed_version_id = ?", id]).to_f end end end Version.send(:include, OpenProject::Costs::Patches::VersionPatch)