More query optimizations

app/controllers/api/v1/timelines_controller.rb

@@ -10,6 +10,8 @@ class Api::V1::TimelinesController < ApiController
     @statuses = Feed.new(:home, current_account).get(DEFAULT_STATUSES_LIMIT, params[:max_id], params[:since_id]).to_a
 
     set_maps(@statuses)
+    set_counters_maps(@statuses)
+    set_account_counters_maps(@statuses.flat_map { |s| [s.account, s.reblog? ? s.reblog.account : nil] }.compact.uniq)
 
     next_path = api_v1_home_timeline_url(max_id: @statuses.last.id)    if @statuses.size == DEFAULT_STATUSES_LIMIT
     prev_path = api_v1_home_timeline_url(since_id: @statuses.first.id) unless @statuses.empty?
@@ -23,6 +25,8 @@ class Api::V1::TimelinesController < ApiController
     @statuses = Feed.new(:mentions, current_account).get(DEFAULT_STATUSES_LIMIT, params[:max_id], params[:since_id]).to_a
 
     set_maps(@statuses)
+    set_counters_maps(@statuses)
+    set_account_counters_maps(@statuses.flat_map { |s| [s.account, s.reblog? ? s.reblog.account : nil] }.compact.uniq)
 
     next_path = api_v1_mentions_timeline_url(max_id: @statuses.last.id)    if @statuses.size == DEFAULT_STATUSES_LIMIT
     prev_path = api_v1_mentions_timeline_url(since_id: @statuses.first.id) unless @statuses.empty?
@@ -36,6 +40,8 @@ class Api::V1::TimelinesController < ApiController
     @statuses = Status.as_public_timeline(current_account).paginate_by_max_id(DEFAULT_STATUSES_LIMIT, params[:max_id], params[:since_id]).to_a
 
     set_maps(@statuses)
+    set_counters_maps(@statuses)
+    set_account_counters_maps(@statuses.flat_map { |s| [s.account, s.reblog? ? s.reblog.account : nil] }.compact.uniq)
 
     next_path = api_v1_public_timeline_url(max_id: @statuses.last.id)    if @statuses.size == DEFAULT_STATUSES_LIMIT
     prev_path = api_v1_public_timeline_url(since_id: @statuses.first.id) unless @statuses.empty?
@@ -50,6 +56,8 @@ class Api::V1::TimelinesController < ApiController
     @statuses = @tag.nil? ? [] : Status.as_tag_timeline(@tag, current_account).paginate_by_max_id(DEFAULT_STATUSES_LIMIT, params[:max_id], params[:since_id]).to_a
 
     set_maps(@statuses)
+    set_counters_maps(@statuses)
+    set_account_counters_maps(@statuses.flat_map { |s| [s.account, s.reblog? ? s.reblog.account : nil] }.compact.uniq)
 
     next_path = api_v1_hashtag_timeline_url(params[:id], max_id: @statuses.last.id)    if @statuses.size == DEFAULT_STATUSES_LIMIT
     prev_path = api_v1_hashtag_timeline_url(params[:id], since_id: @statuses.first.id) unless @statuses.empty?

app/controllers/api_controller.rb

@@ -59,11 +59,11 @@ class ApiController < ApplicationController
   end
 
   def current_resource_owner
-    User.find(doorkeeper_token.resource_owner_id) if doorkeeper_token
+    @user ||= User.find(doorkeeper_token.resource_owner_id) if doorkeeper_token
   end
 
   def current_user
-    super || current_resource_owner
+    @user ||= super || current_resource_owner
   rescue ActiveRecord::RecordNotFound
     nil
   end

app/controllers/application_controller.rb

@@ -51,6 +51,6 @@ class ApplicationController < ActionController::Base
   end
 
   def current_account
-    current_user.try(:account)
+    @account ||= current_user.try(:account)
   end
 end

app/models/feed.rb

@@ -16,7 +16,7 @@ class Feed
       RegenerationWorker.perform_async(@account.id, @type)
       @statuses = Status.send("as_#{@type}_timeline", @account).paginate_by_max_id(limit, nil, nil)
     else
-      status_map = Status.where(id: unhydrated).with_includes.with_counters.map { |status| [status.id, status] }.to_h
+      status_map = Status.where(id: unhydrated).with_includes.map { |status| [status.id, status] }.to_h
       @statuses = unhydrated.map { |id| status_map[id] }.compact
     end
 

app/models/status.rb

@@ -4,7 +4,7 @@ class Status < ApplicationRecord
   include Paginable
   include Streamable
 
-  belongs_to :account, -> { with_counters }, inverse_of: :statuses
+  belongs_to :account, inverse_of: :statuses
 
   belongs_to :thread, foreign_key: 'in_reply_to_id', class_name: 'Status', inverse_of: :replies
   belongs_to :reblog, foreign_key: 'reblog_of_id', class_name: 'Status', inverse_of: :reblogs, touch: true
@@ -27,7 +27,7 @@ class Status < ApplicationRecord
   default_scope { order('id desc') }
 
   scope :with_counters, -> { select('statuses.*, (select count(r.id) from statuses as r where r.reblog_of_id = statuses.id) as reblogs_count, (select count(f.id) from favourites as f where f.status_id = statuses.id) as favourites_count') }
-  scope :with_includes, -> { includes(:account, :media_attachments, :tags, :stream_entry, mentions: :account, reblog: [:account, mentions: :account], thread: :account) }
+  scope :with_includes, -> { includes(:account, :media_attachments, :tags, :stream_entry, mentions: :account, reblog: [:account, :stream_entry, :tags, mentions: :account], thread: :account) }
 
   def local?
     uri.nil?