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Performance improvement for notifications API

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This commit is contained in:
Eugen Rochko 2016-11-21 16:10:42 +01:00
parent 52119104b9
commit f88ca4a206
5 changed files with 23 additions and 7 deletions
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2
app/controllers/api/v1/apps_controller.rb
View file

@ -4,6 +4,6 @@ class Api::V1::AppsController < ApiController
respond_to :json
def create
@app = Doorkeeper::Application.create!(name: params[:client_name], redirect_uri: params[:redirect_uris], scopes: params[:scopes])
@app = Doorkeeper::Application.create!(name: params[:client_name], redirect_uri: params[:redirect_uris], scopes: (params[:scopes] || Doorkeeper.configuration.default_scopes))
end
end

5
app/controllers/api/v1/notifications_controller.rb
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@ -8,8 +8,11 @@ class Api::V1::NotificationsController < ApiController
def index
@notifications = Notification.where(account: current_account).with_includes.paginate_by_max_id(20, params[:max_id], params[:since_id])
statuses = @notifications.select { |n| !n.target_status.nil? }.map(&:target_status)
set_maps(@notifications.select { |n| !n.target_status.nil? }.map(&:target_status))
set_maps(statuses)
set_counters_maps(statuses)
set_account_counters_maps(@notifications.map(&:from_account))
next_path = api_v1_notifications_url(max_id: @notifications.last.id) if @notifications.size == 20
prev_path = api_v1_notifications_url(since_id: @notifications.first.id) unless @notifications.empty?

13
app/controllers/api_controller.rb
View file

@ -89,4 +89,17 @@ class ApiController < ApplicationController
@reblogs_map = Status.reblogs_map(status_ids, current_account)
@favourites_map = Status.favourites_map(status_ids, current_account)
end
def set_counters_maps(statuses) # rubocop:disable Style/AccessorMethodName
status_ids = statuses.map { |s| s.reblog? ? s.reblog_of_id : s.id }.uniq
@favourites_counts_map = Favourite.select('status_id, COUNT(id) AS favourites_count').group('status_id').where(status_id: status_ids).map { |f| [f.status_id, f.favourites_count] }.to_h
@reblogs_counts_map = Status.select('statuses.id, COUNT(reblogs.id) AS reblogs_count').joins('LEFT OUTER JOIN statuses AS reblogs ON statuses.id = reblogs.reblog_of_id').where(id: status_ids).group('statuses.id').map { |r| [r.id, r.reblogs_count] }.to_h
end
def set_account_counters_maps(accounts) # rubocop:disable Style/AccessorMethodName
account_ids = accounts.map(&:id)
@followers_counts_map = Follow.unscoped.select('target_account_id, COUNT(account_id) AS followers_count').group('target_account_id').where(target_account_id: account_ids).map { |f| [f.target_account_id, f.followers_count] }.to_h
@following_counts_map = Follow.unscoped.select('account_id, COUNT(target_account_id) AS following_count').group('account_id').where(account_id: account_ids).map { |f| [f.account_id, f.following_count] }.to_h
@statuses_counts_map = Status.unscoped.select('account_id, COUNT(id) AS statuses_count').group('account_id').where(account_id: account_ids).map { |s| [s.account_id, s.statuses_count] }.to_h
end
end

6
app/views/api/v1/accounts/show.rabl
View file

@ -6,6 +6,6 @@ node(:note) { |account| Formatter.instance.simplified_format(account)
node(:url) { |account| TagManager.instance.url_for(account) }
node(:avatar) { |account| full_asset_url(account.avatar.url(:large, false)) }
node(:header) { |account| full_asset_url(account.header.url(:medium, false)) }
node(:followers_count) { |account| account.try(:followers_count) || account.followers.count }
node(:following_count) { |account| account.try(:following_count) || account.following.count }
node(:statuses_count) { |account| account.try(:statuses_count) || account.statuses.count }
node(:followers_count) { |account| defined?(@followers_counts_map) ? (@followers_counts_map[account.id] || 0) : (account.try(:followers_count) || account.followers.count) }
node(:following_count) { |account| defined?(@following_counts_map) ? (@following_counts_map[account.id] || 0) : (account.try(:following_count) || account.following.count) }
node(:statuses_count) { |account| defined?(@statuses_counts_map) ? (@statuses_counts_map[account.id] || 0) : (account.try(:statuses_count) || account.statuses.count) }

4
app/views/api/v1/statuses/_show.rabl
View file

@ -3,8 +3,8 @@ attributes :id, :created_at, :in_reply_to_id
node(:uri) { |status| TagManager.instance.uri_for(status) }
node(:content) { |status| Formatter.instance.format(status) }
node(:url) { |status| TagManager.instance.url_for(status) }
node(:reblogs_count) { |status| status.reblogs_count }
node(:favourites_count) { |status| status.favourites_count }
node(:reblogs_count) { |status| defined?(@reblogs_counts_map) ? (@reblogs_counts_map[status.id] || 0) : status.reblogs_count }
node(:favourites_count) { |status| defined?(@favourites_counts_map) ? (@favourites_counts_map[status.id] || 0) : status.favourites_count }
child :account do
extends 'api/v1/accounts/show'