[#4183] Implemented Contract#estimated_hour_spent and Deliverable#hours_spent_total.

app/models/contract.rb

@@ -41,8 +41,7 @@ class Contract < ActiveRecord::Base
   [:labor_spent,
    :overhead_spent,
    :total_spent,
-   :profit_spent,
-   :estimated_hour_spent
+   :profit_spent
   ].each do |mthd|
     define_method(mthd) { "TODO" }
   end
@@ -62,6 +61,11 @@ class Contract < ActiveRecord::Base
     deliverables.inject(0) {|total, deliverable| total += deliverable.estimated_hour_budget_total }
   end
 
+  # OPTIMIZE: N+1
+  def estimated_hour_spent
+    deliverables.inject(0) {|total, deliverable| total += deliverable.hours_spent_total }
+  end
+
   # OPTIMIZE: N+1
   def total_budget
     deliverables.inject(0) {|total, deliverable| total += deliverable.total }

app/models/deliverable.rb

@@ -48,6 +48,11 @@ class Deliverable < ActiveRecord::Base
       (overhead_budgets.sum(:hours) || 0.0)
   end
 
+  # OPTIMIZE: N+1
+  def hours_spent_total
+    issues.inject(0) {|total, issue| total += issue.spent_hours }
+  end
+
   if Rails.env.test?
     generator_for :title, :method => :next_title