adds the most followed/starred modules in the past week to the weekly…

… digest

applications/user.moon

@@ -374,3 +374,18 @@ class MoonRocksUser extends lapis.Application
     @flow("followings")\unfollow_object unfollowed_user, "subscription"
 
     redirect_to: @url_for unfollowed_user
+
+  [weekly_digest: "/users/weekly_digest"]: require_login capture_errors_404 =>
+    weekly_favorites_followings_query = db.query "select object_id, count(*) from followings
+      where object_type = module_type and created_at >= '7 days ago'
+      group by object_id order by count(*) desc limit 5"
+
+    @weekly_favorites = {}
+
+    for following in *weekly_favorites_followings_query
+      table.insert @weekly_favorites, Modules\find following.object_id
+
+    Users\include_in @weekly_favorites, "user_id"
+
+    UserDigest = require "emails.user_digest"
+    UserDigest\send @, @current_user.email, { current_user: @current_user, :weekly_favorites }

emails/user_digest.moon

@@ -1,6 +1,12 @@
+import WidgetBase from require "widgets.base"
 
 class UserDigest extends require "emails.base"
+  widgetToolkit = WidgetBase!
+
   subject: => "LuaRocks Digest"
   content: =>
     h2 "Hello #{@user\name_for_display!}, here is your weekly digest from LuaRocks, enjoy!"
 
+    p "The more popular modules from this week!"
+    widgetToolkit\render_modules @weeklyPopular
+