Add experience level to user preferences

app/models/user_preference.rb

@@ -15,6 +15,8 @@ class UserPreference < ApplicationRecord
     less_than_or_equal_to: Gitlab::TabWidth::MAX
   }
 
+  enum experience_level: { novice: 0, experienced: 1 }
+
   default_value_for :tab_width, value: Gitlab::TabWidth::DEFAULT, allows_nil: false
   default_value_for :timezone, value: Time.zone.tzinfo.name, allows_nil: false
   default_value_for :time_display_relative, value: true, allows_nil: false

changelogs/unreleased/add-experience-level-to-user-preferences.yml

+---
+title: Add experience_level to user_preferences
+merge_request: 32784
+author:
+type: added

db/migrate/20200521022725_add_experience_level_to_user_preferences.rb

+# frozen_string_literal: true
+
+class AddExperienceLevelToUserPreferences < ActiveRecord::Migration[6.0]
+  DOWNTIME = false
+
+  def change
+    add_column :user_preferences, :experience_level, :integer, limit: 2
+  end
+end

db/structure.sql

@@ -6711,7 +6711,8 @@ CREATE TABLE public.user_preferences (
     setup_for_company boolean,
     render_whitespace_in_code boolean,
     tab_width smallint,
-    feature_filter_type bigint
+    feature_filter_type bigint,
+    experience_level smallint
 );
 
 CREATE SEQUENCE public.user_preferences_id_seq
@@ -13951,6 +13952,7 @@ COPY "schema_migrations" (version) FROM STDIN;
 20200519171058
 20200519194042
 20200520103514
+20200521022725
 20200525114553
 20200525121014
 20200526120714