Fixes work package view hook

lib/open_project/costs/hooks/work_packages_show_attributes.rb

@@ -1,9 +1,5 @@
 module OpenProject::Costs::Hooks
   class WorkPackagesShowHook < Redmine::Hook::ViewListener
-    #include ActionView::Helpers::TagHelper
-    #include ActionView::Helpers::NumberHelper
-    #include ActionView::Helpers::UrlHelper
-    #include ActionView::Helpers::TextHelper
     include ActionView::Context
     include WorkPackagesHelper
 
@@ -16,7 +12,7 @@ module OpenProject::Costs::Hooks
 
       attributes.reject!{ |a| a.attribute == :spent_time }
 
-      attributes << cost_work_package_attributes(@work_package)
+      attributes << cost_work_package_attributes
       attributes.flatten!
 
       attributes
@@ -25,45 +21,39 @@ module OpenProject::Costs::Hooks
     private
 
     def cost_entries
-      @cost_entries ||= @work_package.cost_entries.visible(User.current, @work_package.project)
+      @work_package.cost_entries.visible(User.current, @work_package.project)
     end
 
     def material_costs
-      return @material_costs if @material_costs
-
       cost_entries_with_rate = cost_entries.select{|c| c.costs_visible_by?(User.current)}
-      @material_costs = cost_entries_with_rate.blank? ? nil : cost_entries_with_rate.collect(&:real_costs).sum
+      cost_entries_with_rate.blank? ? nil : cost_entries_with_rate.collect(&:real_costs).sum
     end
 
     def time_entries
-      @time_entries ||= @work_package.time_entries.visible(User.current, @work_package.project)
+      @work_package.time_entries.visible(User.current, @work_package.project)
     end
 
     def labor_costs
-      return @labor_costs if @labor_costs
-
       time_entries_with_rate = time_entries.select{|c| c.costs_visible_by?(User.current)}
-      @labor_costs = time_entries_with_rate.blank? ? nil : time_entries_with_rate.collect(&:real_costs).sum
+      time_entries_with_rate.blank? ? nil : time_entries_with_rate.collect(&:real_costs).sum
     end
 
     def overall_costs
-      return @overall_costs if @overall_costs
-
-      unless material_costs.nil? && @labor_costs.nil?
-        @overall_costs = 0
-        @overall_costs += material_costs unless material_costs.nil?
-        @overall_costs += labor_costs unless labor_costs.nil?
+      unless material_costs.nil? && labor_costs.nil?
+        overall_costs = 0
+        overall_costs += material_costs unless material_costs.nil?
+        overall_costs += labor_costs unless labor_costs.nil?
       else
-        @overall_costs = nil
+        overall_costs = nil
       end
     end
 
-    def cost_work_package_attributes(work_package)
+    def cost_work_package_attributes
       attributes = []
 
       attributes << work_package_show_table_row(:cost_object) do
-        work_package.cost_object ?
-          link_to_cost_object(work_package.cost_object) :
+        @work_package.cost_object ?
+          link_to_cost_object(@work_package.cost_object) :
           empty_element_tag
       end
       if User.current.allowed_to?(:view_time_entries, @project) ||
@@ -74,7 +64,7 @@ module OpenProject::Costs::Hooks
           summed_hours = time_entries.sum(&:hours)
 
           summed_hours > 0 ?
-            link_to(l_hours(summed_hours), work_package_time_entries_path(work_package)) :
+            link_to(l_hours(summed_hours), work_package_time_entries_path(@work_package)) :
             empty_element_tag
         end
 
@@ -89,7 +79,7 @@ module OpenProject::Costs::Hooks
         User.current.allowed_to?(:view_own_cost_entries, @project)
 
         attributes << work_package_show_table_row(:spent_units) do
-          summarized_cost_entries(cost_entries, work_package)
+          summarized_cost_entries(cost_entries, @work_package)
         end
       end