FEATURE: show number of active users in the last 7 days on about page

app/assets/javascripts/discourse/templates/about.hbs

@@ -53,6 +53,11 @@
         <td>{{number stats.user_count}}</td>
         <td>{{number stats.users_7_days}}</td>
       </tr>
+      <tr>
+        <td>{{i18n 'about.active_user_count'}}</td>
+        <td></td>
+        <td>{{number stats.active_users_7_days}}</td>
+      </tr>
       <tr>
         <td>{{i18n 'about.like_count'}}</td>
         <td>{{number stats.like_count}}</td>

app/models/about.rb

@@ -42,6 +42,7 @@ class About
        topics_7_days: Topic.listable_topics.where('created_at > ?', 7.days.ago).count,
        posts_7_days: Post.where('created_at > ?', 7.days.ago).count,
        users_7_days: User.where('created_at > ?', 7.days.ago).count,
+       active_users_7_days: User.where('last_seen_at > ?', 7.days.ago).count,
        like_count: UserAction.where(action_type: UserAction::LIKE).count,
        likes_7_days: UserAction.where(action_type: UserAction::LIKE)
                                .where("created_at > ?", 7.days.ago)

config/locales/client.en.yml

@@ -159,7 +159,8 @@ en:
       like_count: "Likes"
       topic_count: "Topics"
       post_count: "Posts"
-      user_count: "Users"
+      user_count: "New Users"
+      active_user_count: "Active Users"
       contact: "Contact Us"
       contact_info: "In the event of a critical issue or urgent matter affecting this site, please contact us at %{contact_email}."