[#4477] Hook up FixedBudgets to Contract#fixed_budget and #fixed_markup_budget

app/models/deliverable.rb

@@ -88,6 +88,15 @@ class Deliverable < ActiveRecord::Base
     issues.inject(0) {|total, issue| total += issue.spent_hours }
   end
 
+  def fixed_budget_total(date=nil)
+    fixed_budgets.sum(:budget)
+  end
+
+  # OPTIMIZE: N+1
+  def fixed_markup_budget_total(date=nil)
+    fixed_budgets.inject(0) {|total, fixed_budget| total += fixed_budget.markup_value }
+  end
+  
   def filter_by_date(date=nil, &block)
     block.call
   end