Implementing Budget class along with it's helper methods. #1137

app/models/budget.rb

@@ -4,5 +4,47 @@
 #  belongs_to :project
 #
 class Budget
+  
+  attr_reader :project
+  
+  def initialize(project_id)
+    @project = Project.find(project_id)
+  end
+  
+  def next_due_date
+    del = self.deliverables
+    return nil unless del.size > 0
 
+    dates = del.collect(&:due_date).delete_if { |d| d.blank?}
+    
+    return dates.sort[0]
+  end
+  
+  def deliverables
+    return self.project.deliverables
+  end
+  
+  # TODO
+  def spent
+  end
+  
+  # TODO
+  def left
+  end
+  
+  # TODO
+  def progress
+  end
+  
+  # TODO
+  def score
+  end
+  
+  # TODO
+  def final_due_date
+  end
+  
+  # TODO
+  def profit
+  end
 end