FIX: user directory didn't update stats of users with no recent activity

app/models/directory_item.rb

@@ -41,6 +41,7 @@ class DirectoryItem < ActiveRecord::Base
       end
 
     ActiveRecord::Base.transaction do
+      # Delete records that belonged to users who have been deleted
       exec_sql "DELETE FROM directory_items
                 USING directory_items di
                 LEFT JOIN users u ON u.id = user_id
@@ -48,6 +49,7 @@ class DirectoryItem < ActiveRecord::Base
                       u.id IS NULL AND
                       di.period_type = :period_type", period_type: period_types[period_type]
 
+      # Create new records for users who don't have one yet
       exec_sql "INSERT INTO directory_items(period_type, user_id, likes_received, likes_given, topics_entered, days_visited, posts_read, topic_count, post_count)
                 SELECT
                     :period_type,
@@ -64,6 +66,7 @@ class DirectoryItem < ActiveRecord::Base
                 WHERE di.id IS NULL AND u.id > 0
       ", period_type: period_types[period_type]
 
+      # Calculate new values and update records
       exec_sql "WITH x AS (SELECT
                     u.id user_id,
                     SUM(CASE WHEN ua.action_type = :was_liked_type THEN 1 ELSE 0 END) likes_received,
@@ -74,13 +77,12 @@ class DirectoryItem < ActiveRecord::Base
                     SUM(CASE WHEN ua.action_type = :new_topic_type THEN 1 ELSE 0 END) topic_count,
                     SUM(CASE WHEN ua.action_type = :reply_type THEN 1 ELSE 0 END) post_count
                   FROM users AS u
-                  LEFT OUTER JOIN user_actions AS ua ON ua.user_id = u.id
+                  LEFT OUTER JOIN user_actions AS ua ON ua.user_id = u.id AND COALESCE(ua.created_at, :since) >= :since
                   LEFT OUTER JOIN topics AS t ON ua.target_topic_id = t.id AND t.archetype = 'regular'
                   LEFT OUTER JOIN posts AS p ON ua.target_post_id = p.id
                   LEFT OUTER JOIN categories AS c ON t.category_id = c.id
                   WHERE u.active
                     AND NOT u.blocked
-                    AND COALESCE(ua.created_at, :since) >= :since
                     AND t.deleted_at IS NULL
                     AND COALESCE(t.visible, true)
                     AND p.deleted_at IS NULL

spec/models/directory_item_spec.rb

@@ -23,14 +23,39 @@ describe DirectoryItem do
       UserActionCreator.enable
     end
 
-    let!(:post) { create_post }
-
     it "creates the record for the user" do
+      post = create_post
       DirectoryItem.refresh!
       expect(DirectoryItem.where(period_type: DirectoryItem.period_types[:all])
                           .where(user_id: post.user.id)
                           .where(topic_count: 1).count).to eq(1)
     end
 
+    it "handles users with no activity" do
+      post = nil
+
+      freeze_time(2.years.ago) do
+        post = create_post
+        # Create records for that activity
+        DirectoryItem.refresh!
+      end
+
+      DirectoryItem.refresh!
+      [:yearly, :monthly, :weekly, :daily, :quarterly].each do |period|
+        directory_item = DirectoryItem
+          .where(period_type: DirectoryItem.period_types[period])
+          .where(user_id: post.user.id)
+          .first
+        expect(directory_item.topic_count).to eq(0)
+        expect(directory_item.post_count).to eq(0)
+      end
+
+      directory_item = DirectoryItem
+        .where(period_type: DirectoryItem.period_types[:all])
+        .where(user_id: post.user.id)
+        .first
+      expect(directory_item.topic_count).to eq(1)
+    end
+
   end
 end