adds phase scopes to budget

app/models/budget.rb

@@ -10,6 +10,9 @@ class Budget < ActiveRecord::Base
   has_many :headings, through: :groups
   has_many :investments, through: :headings
 
+  scope :open,     -> { where.not(phase: "finished") }
+  scope :finished, -> { where(phase: "finished") }
+
   def on_hold?
     phase == "on_hold"
   end