Merge pull request #4566 from tgxworld/fix_perf_redirect_to_top

Fix perf redirect to top

app/controllers/list_controller.rb

@@ -327,13 +327,19 @@ class ListController < ApplicationController
     exclude_category_ids.pluck(:id)
   end
 
-  def self.best_period_for(previous_visit_at, category_id=nil)
+  def self.best_period_with_topics_for(previous_visit_at, category_id=nil)
     best_periods_for(previous_visit_at).each do |period|
       top_topics = TopTopic.where("#{period}_score > 0")
       top_topics = top_topics.joins(:topic).where("topics.category_id = ?", category_id) if category_id
-      return period if top_topics.count >= SiteSetting.topics_per_period_in_top_page
+      top_topics = top_topics.limit(SiteSetting.topics_per_period_in_top_page)
+      return period if top_topics.count == SiteSetting.topics_per_period_in_top_page
     end
-    # default period is yearly
+
+    false
+  end
+
+  def self.best_period_for(previous_visit_at, category_id=nil)
+    best_period_with_topics_for(previous_visit_at, category_id) ||
       SiteSetting.top_page_default_timeframe.to_sym
   end
 

app/models/category.rb

@@ -547,7 +547,9 @@ end
 #
 # Indexes
 #
+#  index_categories_on_background_url  (background_url)
 #  index_categories_on_email_in        (email_in) UNIQUE
+#  index_categories_on_logo_url        (logo_url)
 #  index_categories_on_topic_count     (topic_count)
 #  unique_index_categories_on_name     (name) UNIQUE
 #

app/models/post_upload.rb

@@ -14,4 +14,6 @@ end
 # Indexes
 #
 #  idx_unique_post_uploads          (post_id,upload_id) UNIQUE
+#  index_post_uploads_on_post_id    (post_id)
+#  index_post_uploads_on_upload_id  (upload_id)
 #

app/models/site_setting.rb

@@ -99,8 +99,8 @@ class SiteSetting < ActiveRecord::Base
   end
 
   def self.min_redirected_to_top_period(duration)
-    period = ListController.best_period_for(duration)
-    return period if TopTopic.topics_per_period(period) >= SiteSetting.topics_per_period_in_top_page
+    period = ListController.best_period_with_topics_for(duration)
+    return period if period
 
     # not enough topics
     nil

app/models/top_topic.rb

@@ -4,12 +4,6 @@ class TopTopic < ActiveRecord::Base
 
   belongs_to :topic
 
-  def self.topics_per_period(period)
-    DistributedMemoizer.memoize("#{Discourse.current_hostname}_topics_per_period_#{period}", 1.day) do
-      TopTopic.where("#{period}_score > 0").count
-    end.to_i
-  end
-
   # The top topics we want to refresh often
   def self.refresh_daily!
     transaction do
@@ -52,6 +46,8 @@ class TopTopic < ActiveRecord::Base
                                    all: 6)
   end
 
+  private
+
   def self.sort_orders
     @@sort_orders ||= [:posts, :views, :likes, :op_likes].freeze
   end
@@ -224,10 +220,6 @@ class TopTopic < ActiveRecord::Base
                   AND tt.#{period}_#{sort}_count <> c.count",
              from: start_of(period))
   end
-
-  private_class_method :sort_orders, :update_counts_and_compute_scores_for, :remove_invisible_topics,
-                       :add_new_visible_topics, :update_posts_count_for, :update_views_count_for, :update_likes_count_for,
-                       :compute_top_score_for, :start_of, :update_top_topics
 end
 
 # == Schema Information
@@ -265,13 +257,16 @@ end
 #
 # Indexes
 #
+#  index_top_topics_on_all_score                 (all_score)
 #  index_top_topics_on_daily_likes_count         (daily_likes_count)
 #  index_top_topics_on_daily_op_likes_count      (daily_op_likes_count)
 #  index_top_topics_on_daily_posts_count         (daily_posts_count)
+#  index_top_topics_on_daily_score               (daily_score)
 #  index_top_topics_on_daily_views_count         (daily_views_count)
 #  index_top_topics_on_monthly_likes_count       (monthly_likes_count)
 #  index_top_topics_on_monthly_op_likes_count    (monthly_op_likes_count)
 #  index_top_topics_on_monthly_posts_count       (monthly_posts_count)
+#  index_top_topics_on_monthly_score             (monthly_score)
 #  index_top_topics_on_monthly_views_count       (monthly_views_count)
 #  index_top_topics_on_quarterly_likes_count     (quarterly_likes_count)
 #  index_top_topics_on_quarterly_op_likes_count  (quarterly_op_likes_count)
@@ -281,9 +276,11 @@ end
 #  index_top_topics_on_weekly_likes_count        (weekly_likes_count)
 #  index_top_topics_on_weekly_op_likes_count     (weekly_op_likes_count)
 #  index_top_topics_on_weekly_posts_count        (weekly_posts_count)
+#  index_top_topics_on_weekly_score              (weekly_score)
 #  index_top_topics_on_weekly_views_count        (weekly_views_count)
 #  index_top_topics_on_yearly_likes_count        (yearly_likes_count)
 #  index_top_topics_on_yearly_op_likes_count     (yearly_op_likes_count)
 #  index_top_topics_on_yearly_posts_count        (yearly_posts_count)
+#  index_top_topics_on_yearly_score              (yearly_score)
 #  index_top_topics_on_yearly_views_count        (yearly_views_count)
 #

app/models/user.rb

@@ -1101,6 +1101,7 @@ end
 #  index_users_on_auth_token          (auth_token)
 #  index_users_on_last_posted_at      (last_posted_at)
 #  index_users_on_last_seen_at        (last_seen_at)
+#  index_users_on_uploaded_avatar_id  (uploaded_avatar_id)
 #  index_users_on_username            (username) UNIQUE
 #  index_users_on_username_lower      (username_lower) UNIQUE
 #

app/models/user_avatar.rb

@@ -105,5 +105,7 @@ end
 #
 # Indexes
 #
+#  index_user_avatars_on_custom_upload_id    (custom_upload_id)
+#  index_user_avatars_on_gravatar_upload_id  (gravatar_upload_id)
 #  index_user_avatars_on_user_id             (user_id)
 #

app/models/user_profile.rb

@@ -124,4 +124,6 @@ end
 # Indexes
 #
 #  index_user_profiles_on_bio_cooked_version  (bio_cooked_version)
+#  index_user_profiles_on_card_background     (card_background)
+#  index_user_profiles_on_profile_background  (profile_background)
 #

db/migrate/20161124020918_add_scores_indexes_to_top_topics.rb

@@ -0,0 +1,9 @@
+class AddScoresIndexesToTopTopics < ActiveRecord::Migration
+  def change
+    add_index :top_topics, :daily_score
+    add_index :top_topics, :weekly_score
+    add_index :top_topics, :monthly_score
+    add_index :top_topics, :yearly_score
+    add_index :top_topics, :all_score
+  end
+end

spec/models/site_setting_spec.rb

@@ -76,7 +76,11 @@ describe SiteSetting do
       before do
         SiteSetting.topics_per_period_in_top_page = 2
         SiteSetting.top_page_default_timeframe = 'daily'
-        TopTopic.stubs(:topics_per_period).with(:daily).returns(3)
+
+        2.times do
+          TopTopic.create!(daily_score: 2.5)
+        end
+
         TopTopic.refresh!
       end
 
@@ -91,7 +95,6 @@ describe SiteSetting do
       before do
         SiteSetting.topics_per_period_in_top_page = 20
         SiteSetting.top_page_default_timeframe = 'daily'
-        TopTopic.stubs(:topics_per_period).with(:daily).returns(1)
         TopTopic.refresh!
       end