Eliminate some n-plus-ones.

This commit is contained in:
Eugene Burmakin 2025-07-27 01:08:29 +02:00
parent 3264725d2a
commit 66e6112ad8
19 changed files with 97 additions and 46 deletions

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@ -4,6 +4,14 @@ All notable changes to this project will be documented in this file.
The format is based on [Keep a Changelog](http://keepachangelog.com/)
and this project adheres to [Semantic Versioning](http://semver.org/).
# [0.30.6] - 2025-07-27
## Changed
- Put all jobs in their own queues.
- Visits page should load faster now.
- Reverse geocoding jobs now make less database queries.
# [0.30.5] - 2025-07-26
## Fixed

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@ -57,8 +57,15 @@ class StatsController < ApplicationController
def precompute_year_distances
year_distances = {}
@stats.each do |year, _stats|
year_distances[year] = Stat.year_distance(year, current_user)
@stats.each do |year, stats|
stats_by_month = stats.index_by(&:month)
year_distances[year] = (1..12).map do |month|
month_name = Date::MONTHNAMES[month]
distance = stats_by_month[month]&.distance || 0
[month_name, distance]
end
end
year_distances

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@ -11,7 +11,7 @@ class VisitsController < ApplicationController
visits = current_user
.visits
.where(status:)
.includes(%i[suggested_places area points])
.includes(%i[suggested_places area points place])
.order(started_at: order_by)
@suggested_visits_count = current_user.visits.suggested.count

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@ -1,5 +1,6 @@
// Configure your import map in config/importmap.rb. Read more: https://github.com/rails/importmap-rails
import "@rails/ujs"
import "@rails/actioncable"
import "controllers"
import "@hotwired/turbo-rails"
@ -13,5 +14,4 @@ import "./channels"
import "trix"
import "@rails/actiontext"
import "@rails/ujs"
Rails.start()

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@ -1,7 +1,7 @@
# frozen_string_literal: true
class AppVersionCheckingJob < ApplicationJob
queue_as :default
queue_as :app_version_checking
sidekiq_options retry: false
def perform

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@ -1,7 +1,7 @@
# frozen_string_literal: true
class Cache::CleaningJob < ApplicationJob
queue_as :default
queue_as :cache
def perform
Cache::Clean.call

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@ -1,7 +1,7 @@
# frozen_string_literal: true
class Cache::PreheatingJob < ApplicationJob
queue_as :default
queue_as :cache
def perform
User.find_each do |user|

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@ -1,7 +1,7 @@
# frozen_string_literal: true
class DataMigrations::MigratePlacesLonlatJob < ApplicationJob
queue_as :default
queue_as :data_migrations
def perform(user_id)
user = User.find(user_id)

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@ -1,7 +1,7 @@
# frozen_string_literal: true
class DataMigrations::MigratePointsLatlonJob < ApplicationJob
queue_as :default
queue_as :data_migrations
def perform(user_id)
user = User.find(user_id)

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@ -1,7 +1,7 @@
# frozen_string_literal: true
class DataMigrations::SetPointsCountryIdsJob < ApplicationJob
queue_as :default
queue_as :data_migrations
def perform(point_id)
point = Point.find(point_id)

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@ -1,7 +1,7 @@
# frozen_string_literal: true
class DataMigrations::SetReverseGeocodedAtForPointsJob < ApplicationJob
queue_as :default
queue_as :data_migrations
def perform
timestamp = Time.current

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@ -1,7 +1,7 @@
# frozen_string_literal: true
class DataMigrations::StartSettingsPointsCountryIdsJob < ApplicationJob
queue_as :default
queue_as :data_migrations
def perform
Point.where(country_id: nil).find_each do |point|

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@ -19,18 +19,15 @@ class ReverseGeocoding::Places::FetchData
first_place = places.shift
update_place(first_place)
osm_ids = places.map { |place| place.data['properties']['osm_id'].to_s }
osm_ids = extract_osm_ids(places)
return if osm_ids.empty?
existing_places =
Place.where("geodata->'properties'->>'osm_id' IN (?)", osm_ids)
.index_by { |p| p.geodata.dig('properties', 'osm_id').to_s }
.compact
existing_places = find_existing_places(osm_ids)
places.each do |reverse_geocoded_place|
fetch_and_create_place(reverse_geocoded_place, existing_places)
end
places_to_create, places_to_update = prepare_places_for_bulk_operations(places, existing_places)
save_places(places_to_create, places_to_update)
end
private
@ -42,7 +39,7 @@ class ReverseGeocoding::Places::FetchData
place.update!(
name: place_name(data),
lonlat: "POINT(#{data['geometry']['coordinates'][0]} #{data['geometry']['coordinates'][1]})",
lonlat: build_point_coordinates(data['geometry']['coordinates']),
city: data['properties']['city'],
country: data['properties']['country'],
geodata: data,
@ -51,21 +48,6 @@ class ReverseGeocoding::Places::FetchData
)
end
def fetch_and_create_place(reverse_geocoded_place, existing_places)
data = reverse_geocoded_place.data
new_place = find_place(data, existing_places)
new_place.name = place_name(data)
new_place.city = data['properties']['city']
new_place.country = data['properties']['country'] # TODO: Use country id
new_place.geodata = data
new_place.source = :photon
if new_place.lonlat.blank?
new_place.lonlat = "POINT(#{data['geometry']['coordinates'][0]} #{data['geometry']['coordinates'][1]})"
end
new_place.save!
end
def find_place(place_data, existing_places)
osm_id = place_data['properties']['osm_id'].to_s
@ -74,10 +56,11 @@ class ReverseGeocoding::Places::FetchData
return existing_place if existing_place.present?
# If not found in existing places, initialize a new one
coordinates = place_data['geometry']['coordinates']
Place.new(
lonlat: "POINT(#{place_data['geometry']['coordinates'][0].to_f.round(5)} #{place_data['geometry']['coordinates'][1].to_f.round(5)})",
latitude: place_data['geometry']['coordinates'][1].to_f.round(5),
longitude: place_data['geometry']['coordinates'][0].to_f.round(5)
lonlat: build_point_coordinates(coordinates),
latitude: coordinates[1].to_f.round(5),
longitude: coordinates[0].to_f.round(5)
)
end
@ -92,6 +75,56 @@ class ReverseGeocoding::Places::FetchData
"#{name} (#{type})"
end
def extract_osm_ids(places)
places.map { |place| place.data['properties']['osm_id'].to_s }
end
def find_existing_places(osm_ids)
Place.where("geodata->'properties'->>'osm_id' IN (?)", osm_ids)
.index_by { |p| p.geodata.dig('properties', 'osm_id').to_s }
.compact
end
def prepare_places_for_bulk_operations(places, existing_places)
places_to_create = []
places_to_update = []
places.each do |reverse_geocoded_place|
data = reverse_geocoded_place.data
new_place = find_place(data, existing_places)
populate_place_attributes(new_place, data)
if new_place.persisted?
places_to_update << new_place
else
places_to_create << new_place
end
end
[places_to_create, places_to_update]
end
def populate_place_attributes(place, data)
place.name = place_name(data)
place.city = data['properties']['city']
place.country = data['properties']['country']
place.geodata = data
place.source = :photon
if place.lonlat.blank?
place.lonlat = build_point_coordinates(data['geometry']['coordinates'])
end
end
def save_places(places_to_create, places_to_update)
Place.create!(places_to_create) if places_to_create.any?
places_to_update.each(&:save!) if places_to_update.any?
end
def build_point_coordinates(coordinates)
"POINT(#{coordinates[0]} #{coordinates[1]})"
end
def reverse_geocoded_places
data = Geocoder.search(
[place.lat, place.lon],

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@ -1,6 +1,7 @@
---
:concurrency: <%= ENV.fetch("BACKGROUND_PROCESSING_CONCURRENCY", 10) %>
:queues:
- data_migrations
- points
- default
- imports
@ -11,3 +12,5 @@
- reverse_geocoding
- visit_suggesting
- places
- app_version_checking
- cache

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@ -66,8 +66,8 @@ RSpec.describe DataMigrations::MigratePlacesLonlatJob, type: :job do
end
describe 'queue' do
it 'uses the default queue' do
expect(described_class.queue_name).to eq('default')
it 'uses the data_migrations queue' do
expect(described_class.queue_name).to eq('data_migrations')
end
end
end

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@ -21,8 +21,8 @@ RSpec.describe DataMigrations::SetPointsCountryIdsJob, type: :job do
end
describe 'queue' do
it 'uses the default queue' do
expect(described_class.queue_name).to eq('default')
it 'uses the data_migrations queue' do
expect(described_class.queue_name).to eq('data_migrations')
end
end
end

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@ -26,8 +26,8 @@ RSpec.describe DataMigrations::StartSettingsPointsCountryIdsJob, type: :job do
end
describe 'queue' do
it 'uses the default queue' do
expect(described_class.queue_name).to eq('default')
it 'uses the data_migrations queue' do
expect(described_class.queue_name).to eq('data_migrations')
end
end
end