Add Budget::Investment::Status migration

db/migrate/20180321180149_add_status_to_milestones.rb

@@ -0,0 +1,8 @@
+class AddStatusToMilestones < ActiveRecord::Migration
+  disable_ddl_transaction!
+
+  def change
+    add_column :budget_investment_milestones, :status_id, :integer
+    add_index :budget_investment_milestones, :status_id, algorithm: :concurrently
+  end
+end

db/schema.rb

@@ -137,8 +137,11 @@ ActiveRecord::Schema.define(version: 20180519132610) do
     t.datetime "created_at",                  null: false
     t.datetime "updated_at",                  null: false
     t.datetime "publication_date"
+    t.integer  "status_id"
   end
 
+  add_index "budget_investment_milestones", ["status_id"], name: "index_budget_investment_milestones_on_status_id", using: :btree
+
   create_table "budget_investment_statuses", force: :cascade do |t|
     t.string   "name"
     t.text     "description"