DraftVersion base model and very basic admin pages

app/models/abilities/administrator.rb

@@ -45,6 +45,7 @@ module Abilities
       can [:search, :edit, :update, :create, :index, :destroy], Banner
 
       can [:manage], ::Legislation::Process
+      can [:manage], ::Legislation::DraftVersion
     end
   end
 end

app/models/legislation/draft_version.rb

@@ -0,0 +1,12 @@
+class Legislation::DraftVersion < ActiveRecord::Base
+  VALID_STATUSES = %w(draft published)
+
+  acts_as_paranoid column: :hidden_at
+  include ActsAsParanoidAliases
+
+  belongs_to :process, class_name: 'Legislation::Process', foreign_key: 'legislation_process_id'
+
+  validates :title, presence: true
+  validates :body, presence: true
+  validates :status, presence: true, inclusion: { in: VALID_STATUSES }
+end

app/models/legislation/process.rb

@@ -2,6 +2,8 @@ class Legislation::Process < ActiveRecord::Base
   acts_as_paranoid column: :hidden_at
   include ActsAsParanoidAliases
 
+  has_many :draft_versions, class_name: 'Legislation::DraftVersion', foreign_key: 'legislation_process_id'
+
   validates :title, presence: true
   validates :description, presence: true
   validates :target, presence: true