Add historic fields to participatory budget

app/models/budget.rb

@@ -35,6 +35,12 @@ class Budget < ApplicationRecord
   has_many :headings, through: :groups
   has_many :lines, through: :ballots, class_name: "Budget::Ballot::Line"
   has_many :phases, class_name: "Budget::Phase"
+  has_many :budget_trackers
+  has_many :trackers, through: :budget_trackers
+  has_many :budget_administrators
+  has_many :administrators, through: :budget_administrators
+  has_many :budget_valuators
+  has_many :valuators, through: :budget_valuators
 
   has_one :poll
 
@@ -224,4 +230,5 @@ class Budget < ApplicationRecord
   def generate_slug?
     slug.nil? || drafting?
   end
+
 end