Adapted to renaming of core method

app/helpers/costlog_helper.rb

@@ -42,7 +42,7 @@ module CostlogHelper
   end
 
   def user_collection_for_select_options(options = {})
-    users = @project.assignable_users
+    users = @project.possible_assignees
     collection = []
     users.each { |u| collection << [u.name, u.id] }
     collection

app/models/variable_cost_object.rb

@@ -125,7 +125,7 @@ class VariableCostObject < CostObject
     labor_budget_item_attributes.each do |index, attributes|
       if attributes[:hours].to_i > 0 &&
          attributes[:user_id].to_i > 0 &&
-         project.assignable_users.map(&:id).include?(attributes[:user_id].to_i)
+         project.possible_assignees.map(&:id).include?(attributes[:user_id].to_i)
 
         item = labor_budget_items.build(attributes)
         item.cost_object = self # to please the labor_budget_item validation
@@ -137,7 +137,7 @@ class VariableCostObject < CostObject
     labor_budget_items.reject(&:new_record?).each do |labor_budget_item|
       attributes = labor_budget_item_attributes[labor_budget_item.id.to_s]
       if User.current.allowed_to? :edit_cost_objects, labor_budget_item.cost_object.project
-        if attributes && attributes[:hours].to_i > 0 && attributes[:user_id].to_i > 0 && project.assignable_users.map(&:id).include?(attributes[:user_id].to_i)
+        if attributes && attributes[:hours].to_i > 0 && attributes[:user_id].to_i > 0 && project.possible_assignees.map(&:id).include?(attributes[:user_id].to_i)
           attributes[:budget] = Rate.clean_currency(attributes[:budget])
           labor_budget_item.attributes = attributes
         else

app/views/cost_objects/_labor_budget_item.html.erb

@@ -40,7 +40,7 @@ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
   </td>
   <td class="user">
     <label class="hidden-for-sighted" for="<%= id_prefix %>_user_id"><%= l(:label_user) %></label>
-    <%= cost_form.select :user_id, @project.assignable_users.sort.collect{|u| [u.name, u.id]}, {:prompt => true}, {:index => id_or_index} %>
+    <%= cost_form.select :user_id, @project.possible_assignees.sort.collect{|u| [u.name, u.id]}, {:prompt => true}, {:index => id_or_index} %>
   </td>
   <td class="comment">
     <label class="hidden-for-sighted" for="<%= id_prefix %>_comments"><%= LaborBudgetItem.human_attribute_name(:comments) %></label>