Adds erased_at to user via a migration

db/migrate/20151021113348_add_erased_at_to_users.rb

@@ -0,0 +1,5 @@
+class AddErasedAtToUsers < ActiveRecord::Migration
+  def change
+    add_column :users, :erased_at, :datetime
+  end
+end

db/schema.rb

@@ -11,7 +11,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20151020112354) do
+ActiveRecord::Schema.define(version: 20151021113348) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -294,6 +294,7 @@ ActiveRecord::Schema.define(version: 20151020112354) do
     t.integer  "failed_census_calls_count",            default: 0
     t.datetime "level_two_verified_at"
     t.string   "erase_reason"
+    t.datetime "erased_at"
   end
 
   add_index "users", ["confirmation_token"], name: "index_users_on_confirmation_token", unique: true, using: :btree