Move status counters to separate table, count replies (#8104)

* Move status counters to separate table, count replies

* Migration to remove old counter columns from statuses table

* Fix schema file
rebase/4.0.0rc2
Eugen Rochko 2018-08-14 19:19:32 +02:00 committed by GitHub
parent 018a9e4e7f
commit 8e111b753a
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10 changed files with 142 additions and 32 deletions

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@ -32,20 +32,11 @@ class Favourite < ApplicationRecord
private
def increment_cache_counters
if association(:status).loaded?
status.update_attribute(:favourites_count, status.favourites_count + 1)
else
Status.where(id: status_id).update_all('favourites_count = COALESCE(favourites_count, 0) + 1')
end
status.increment_count!(:favourites_count)
end
def decrement_cache_counters
return if association(:status).loaded? && (status.marked_for_destruction? || status.marked_for_mass_destruction?)
if association(:status).loaded?
status.update_attribute(:favourites_count, [status.favourites_count - 1, 0].max)
else
Status.where(id: status_id).update_all('favourites_count = GREATEST(COALESCE(favourites_count, 0) - 1, 0)')
end
status.decrement_count!(:favourites_count)
end
end

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@ -15,8 +15,6 @@
# visibility :integer default("public"), not null
# spoiler_text :text default(""), not null
# reply :boolean default(FALSE), not null
# favourites_count :integer default(0), not null
# reblogs_count :integer default(0), not null
# language :string
# conversation_id :bigint(8)
# local :boolean
@ -26,6 +24,8 @@
#
class Status < ApplicationRecord
self.cache_versioning = false
include Paginable
include Streamable
include Cacheable
@ -59,6 +59,7 @@ class Status < ApplicationRecord
has_one :notification, as: :activity, dependent: :destroy
has_one :stream_entry, as: :activity, inverse_of: :status
has_one :status_stat, inverse_of: :status
validates :uri, uniqueness: true, presence: true, unless: :local?
validates :text, presence: true, unless: -> { with_media? || reblog? }
@ -81,7 +82,25 @@ class Status < ApplicationRecord
scope :not_excluded_by_account, ->(account) { where.not(account_id: account.excluded_from_timeline_account_ids) }
scope :not_domain_blocked_by_account, ->(account) { account.excluded_from_timeline_domains.blank? ? left_outer_joins(:account) : left_outer_joins(:account).where('accounts.domain IS NULL OR accounts.domain NOT IN (?)', account.excluded_from_timeline_domains) }
cache_associated :account, :application, :media_attachments, :conversation, :tags, :stream_entry, mentions: :account, reblog: [:account, :application, :stream_entry, :tags, :media_attachments, :conversation, mentions: :account], thread: :account
cache_associated :account,
:application,
:media_attachments,
:conversation,
:status_stat,
:tags,
:stream_entry,
mentions: :account,
reblog: [
:account,
:application,
:stream_entry,
:tags,
:media_attachments,
:conversation,
:status_stat,
mentions: :account,
],
thread: :account
delegate :domain, to: :account, prefix: true
@ -175,6 +194,26 @@ class Status < ApplicationRecord
@marked_for_mass_destruction
end
def replies_count
status_stat&.replies_count || 0
end
def reblogs_count
status_stat&.reblogs_count || 0
end
def favourites_count
status_stat&.favourites_count || 0
end
def increment_count!(key)
update_status_stat!(key => public_send(key) + 1)
end
def decrement_count!(key)
update_status_stat!(key => [public_send(key) - 1, 0].max)
end
after_create :increment_counter_caches
after_destroy :decrement_counter_caches
@ -190,6 +229,10 @@ class Status < ApplicationRecord
before_validation :set_local
class << self
def cache_ids
left_outer_joins(:status_stat).select('statuses.id, greatest(statuses.updated_at, status_stats.updated_at) AS updated_at')
end
def in_chosen_languages(account)
where(language: nil).or where(language: account.chosen_languages)
end
@ -352,6 +395,11 @@ class Status < ApplicationRecord
private
def update_status_stat!(attrs)
record = status_stat || build_status_stat
record.update(attrs)
end
def store_uri
update_attribute(:uri, ActivityPub::TagManager.instance.uri_for(self)) if uri.nil?
end
@ -408,13 +456,8 @@ class Status < ApplicationRecord
Account.where(id: account_id).update_all('statuses_count = COALESCE(statuses_count, 0) + 1')
end
return unless reblog?
if association(:reblog).loaded?
reblog.update_attribute(:reblogs_count, reblog.reblogs_count + 1)
else
Status.where(id: reblog_of_id).update_all('reblogs_count = COALESCE(reblogs_count, 0) + 1')
end
thread.increment_count!(:replies_count) if in_reply_to_id.present?
reblog.increment_count!(:reblogs_count) if reblog?
end
def decrement_counter_caches
@ -426,12 +469,7 @@ class Status < ApplicationRecord
Account.where(id: account_id).update_all('statuses_count = GREATEST(COALESCE(statuses_count, 0) - 1, 0)')
end
return unless reblog?
if association(:reblog).loaded?
reblog.update_attribute(:reblogs_count, [reblog.reblogs_count - 1, 0].max)
else
Status.where(id: reblog_of_id).update_all('reblogs_count = GREATEST(COALESCE(reblogs_count, 0) - 1, 0)')
end
thread.decrement_count!(:replies_count) if in_reply_to_id.present?
reblog.decrement_count!(:reblogs_count) if reblog?
end
end

17
app/models/status_stat.rb Normal file
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@ -0,0 +1,17 @@
# frozen_string_literal: true
# == Schema Information
#
# Table name: status_stats
#
# id :bigint(8) not null, primary key
# status_id :bigint(8) not null
# replies_count :bigint(8) default(0), not null
# reblogs_count :bigint(8) default(0), not null
# favourites_count :bigint(8) default(0), not null
# created_at :datetime not null
# updated_at :datetime not null
#
class StatusStat < ApplicationRecord
belongs_to :status, inverse_of: :status_stat
end

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@ -3,7 +3,8 @@
class REST::StatusSerializer < ActiveModel::Serializer
attributes :id, :created_at, :in_reply_to_id, :in_reply_to_account_id,
:sensitive, :spoiler_text, :visibility, :language,
:uri, :content, :url, :reblogs_count, :favourites_count
:uri, :content, :url, :replies_count, :reblogs_count,
:favourites_count
attribute :favourited, if: :current_user?
attribute :reblogged, if: :current_user?

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@ -0,0 +1,12 @@
class CreateStatusStats < ActiveRecord::Migration[5.2]
def change
create_table :status_stats do |t|
t.belongs_to :status, null: false, foreign_key: { on_delete: :cascade }, index: { unique: true }
t.bigint :replies_count, null: false, default: 0
t.bigint :reblogs_count, null: false, default: 0
t.bigint :favourites_count, null: false, default: 0
t.timestamps
end
end
end

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@ -0,0 +1,19 @@
class CopyStatusStats < ActiveRecord::Migration[5.2]
disable_ddl_transaction!
def up
safety_assured do
execute <<-SQL.squish
INSERT INTO status_stats (status_id, reblogs_count, favourites_count)
SELECT id, reblogs_count, favourites_count
FROM statuses
ON CONFLICT (status_id) DO UPDATE
SET reblogs_count = EXCLUDED.reblogs_count, favourites_count = EXCLUDED.favourites_count
SQL
end
end
def down
# Nothing
end
end

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@ -0,0 +1,12 @@
# frozen_string_literal: true
class CopyStatusStatsCleanup < ActiveRecord::Migration[5.2]
disable_ddl_transaction!
def change
safety_assured do
remove_column :statuses, :reblogs_count, :integer, default: 0, null: false
remove_column :statuses, :favourites_count, :integer, default: 0, null: false
end
end
end

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@ -10,7 +10,7 @@
#
# It's strongly recommended that you check this file into your version control system.
ActiveRecord::Schema.define(version: 2018_08_12_123222) do
ActiveRecord::Schema.define(version: 2018_08_13_113448) do
# These are extensions that must be enabled in order to support this database
enable_extension "plpgsql"
@ -456,6 +456,16 @@ ActiveRecord::Schema.define(version: 2018_08_12_123222) do
t.index ["account_id", "status_id"], name: "index_status_pins_on_account_id_and_status_id", unique: true
end
create_table "status_stats", force: :cascade do |t|
t.bigint "status_id", null: false
t.bigint "replies_count", default: 0, null: false
t.bigint "reblogs_count", default: 0, null: false
t.bigint "favourites_count", default: 0, null: false
t.datetime "created_at", null: false
t.datetime "updated_at", null: false
t.index ["status_id"], name: "index_status_stats_on_status_id", unique: true
end
create_table "statuses", id: :bigint, default: -> { "timestamp_id('statuses'::text)" }, force: :cascade do |t|
t.string "uri"
t.text "text", default: "", null: false
@ -468,8 +478,6 @@ ActiveRecord::Schema.define(version: 2018_08_12_123222) do
t.integer "visibility", default: 0, null: false
t.text "spoiler_text", default: "", null: false
t.boolean "reply", default: false, null: false
t.integer "favourites_count", default: 0, null: false
t.integer "reblogs_count", default: 0, null: false
t.string "language"
t.bigint "conversation_id"
t.boolean "local"
@ -630,6 +638,7 @@ ActiveRecord::Schema.define(version: 2018_08_12_123222) do
add_foreign_key "session_activations", "users", name: "fk_e5fda67334", on_delete: :cascade
add_foreign_key "status_pins", "accounts", name: "fk_d4cb435b62", on_delete: :cascade
add_foreign_key "status_pins", "statuses", on_delete: :cascade
add_foreign_key "status_stats", "statuses", on_delete: :cascade
add_foreign_key "statuses", "accounts", column: "in_reply_to_account_id", name: "fk_c7fa917661", on_delete: :nullify
add_foreign_key "statuses", "accounts", name: "fk_9bda1543f7", on_delete: :cascade
add_foreign_key "statuses", "statuses", column: "in_reply_to_id", on_delete: :nullify

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@ -0,0 +1,6 @@
Fabricator(:status_stat) do
status_id nil
replies_count ""
reblogs_count ""
favourites_count ""
end

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@ -0,0 +1,5 @@
require 'rails_helper'
RSpec.describe StatusStat, type: :model do
pending "add some examples to (or delete) #{__FILE__}"
end