render author in planning_element/show

app/views/api/v2/planning_elements/_planning_element.api.rabl

@@ -31,7 +31,7 @@
 # which drastically affects the performance of inline vs. partials: as the planning-elements are
 # highly performance-critical, we need to live with this duplication until these issues are solved.
 object @planning_element
-attributes :id, :subject, :description, :project_id, :parent_id, :status_id, :type_id, :priority_id
+attributes :id, :subject, :description, :author_id, :project_id, :parent_id, :status_id, :type_id, :priority_id
 
 node :start_date, :if => lambda{|pe| pe.start_date.present?} { |pe| pe.start_date.to_formatted_s(:db) }
 node :due_date, :if => lambda{|pe| pe.due_date.present?} {|pe| pe.due_date.to_formatted_s(:db) }
@@ -63,6 +63,10 @@ node :children, unless: lambda{|pe| pe.children.empty?} do |pe|
   pe.children.to_a.map { |wp| { id: wp.id, subject: wp.subject}}
 end
 
+child :author => :author do
+  attributes :id, :name
+end
+
 node :responsible, if: lambda{|pe| pe.responsible.present?} do |pe|
   child :responsible => :responsible do
     attributes :id, :name

spec/views/api/v2/planning_elements/show_api_json_spec.rb

@@ -198,6 +198,21 @@ describe 'api/v2/planning_elements/show.api.rabl' do
     end
   end
 
+  describe 'with a planning element having an author' do
+    let(:author)            { FactoryGirl.create(:user) }
+    let(:planning_element)  { FactoryGirl.build(:work_package, :author => author) }
+
+    before do
+      assign(:planning_element, planning_element)
+      render
+    end
+
+    it 'renders an author node containing the author\'s id and name' do
+      author_json = {id: author.id, name: author.name}.to_json
+      response.should be_json_eql(author_json).at_path('planning_element/author')
+    end
+  end
+
   describe "a destroyed planning element" do
     let(:planning_element) { FactoryGirl.create(:work_package) }