Add migration for legacy logs

db/migrate/20180331183559_ensure_log_has_type.rb

@@ -0,0 +1,5 @@
+class EnsureLogHasType < ActiveRecord::Migration[5.1]
+  def change
+    Log.where(type: nil).update_all(type: "info")
+  end
+end

db/schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20180330143232) do
+ActiveRecord::Schema.define(version: 20180331183559) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"