Merge pull request #210 from finnlabs/fix/22634-budget-link

Provide relative_root costObject link from APIv3

frontend/app/work_packages/directives/cost-object-directive.js

@@ -28,7 +28,7 @@
 
 angular.module('openproject.workPackages.directives')
 
-.directive('costObject', ['$timeout', function($timeout) {
+.directive('costObject', ['$timeout', 'PathHelper', function($timeout, Pathhelper) {
   return {
     restrict: 'E',
     require: '^workPackageField',
@@ -40,7 +40,7 @@ angular.module('openproject.workPackages.directives')
         scope.workPackage = workPackage;
         scope.costObject = scope.workPackage.embedded.costObject;
         if (scope.costObject) {
-          scope.linkToCostObject = '/cost_objects/' + scope.costObject.props.id;
+          scope.linkToCostObject = scope.costObject.links.staticPath.href;
         }
         $timeout(function() {
           element.find('a').on('click', function(e) {

lib/api/v3/budgets/budget_representer.rb

@@ -25,6 +25,12 @@ module API
     module Budgets
       class BudgetRepresenter < ::API::Decorators::Single
         self_link title_getter: -> (*) { represented.subject }
+        link :staticPath do
+          {
+              href: cost_object_path(represented.id)
+          }
+        end
+
         property :id, render_nil: true
         property :subject, render_nil: true