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Introduce ApplicationController#cache_collection_paginated_by_id (#14677)

* Replace incorrect use of distinct with group

Some uses of ActiveRecord::QueryMethods#distinct pass field names but they
are incorrect for the current version of Rails.

ActiveRecord::QueryMethods#group provides the expected behavior and
benefits performance. See commit 6da24aad4c.

* Introduce ApplicationController#cache_collection_paginated_by_id

ApplicationController#cache_collection_paginated_by_id fuses
ApplicationController#cache_collection and Paginable.paginate_by_id.

An advantage of this method is that it prevents from modifying scope which
Paginable.paginate_by_id may provide.
ApplicationController#cache_collection always return an array and there
is no possibility of the scope modification. It is also clear for a
programmer, considering the implication of "cache".

This method can also emit more efficient queries by using
Cacheable.cache_ids before calling Paginable.paginate_by_id.
master
Akihiko Odaki 1 year ago
committed by GitHub
parent
commit
64ef37b89d
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7 changed files with 42 additions and 34 deletions
  1. +8
    -4
      app/controllers/accounts_controller.rb
  2. +6
    -2
      app/controllers/activitypub/outboxes_controller.rb
  3. +6
    -5
      app/controllers/api/v1/accounts/statuses_controller.rb
  4. +3
    -5
      app/controllers/api/v1/notifications_controller.rb
  5. +9
    -7
      app/controllers/api/v1/timelines/public_controller.rb
  6. +6
    -11
      app/controllers/api/v1/timelines/tag_controller.rb
  7. +4
    -0
      app/controllers/concerns/cache_concern.rb

+ 8
- 4
app/controllers/accounts_controller.rb View File

@ -28,8 +28,7 @@ class AccountsController < ApplicationController
end
@pinned_statuses = cache_collection(@account.pinned_statuses, Status) if show_pinned_statuses?
@statuses = filtered_status_page
@statuses = cache_collection(@statuses, Status)
@statuses = cached_filtered_status_page
@rss_url = rss_url
unless @statuses.empty?
@ -142,8 +141,13 @@ class AccountsController < ApplicationController
request.path.split('.').first.ends_with?(Addressable::URI.parse("/tagged/#{params[:tag]}").normalize)
end
def filtered_status_page
filtered_statuses.paginate_by_id(PAGE_SIZE, params_slice(:max_id, :min_id, :since_id))
def cached_filtered_status_page
cache_collection_paginated_by_id(
filtered_statuses,
Status,
PAGE_SIZE,
params_slice(:max_id, :min_id, :since_id)
)
end
def params_slice(*keys)

+ 6
- 2
app/controllers/activitypub/outboxes_controller.rb View File

@ -50,8 +50,12 @@ class ActivityPub::OutboxesController < ActivityPub::BaseController
return unless page_requested?
@statuses = @account.statuses.permitted_for(@account, signed_request_account)
@statuses = @statuses.paginate_by_id(LIMIT, params_slice(:max_id, :min_id, :since_id))
@statuses = cache_collection(@statuses, Status)
@statuses = cache_collection_paginated_by_id(
@statuses,
Status,
LIMIT,
params_slice(:max_id, :min_id, :since_id)
)
end
def page_requested?

+ 6
- 5
app/controllers/api/v1/accounts/statuses_controller.rb View File

@ -22,10 +22,6 @@ class Api::V1::Accounts::StatusesController < Api::BaseController
end
def cached_account_statuses
cache_collection account_statuses, Status
end
def account_statuses
statuses = truthy_param?(:pinned) ? pinned_scope : permitted_account_statuses
statuses.merge!(only_media_scope) if truthy_param?(:only_media)
@ -33,7 +29,12 @@ class Api::V1::Accounts::StatusesController < Api::BaseController
statuses.merge!(no_reblogs_scope) if truthy_param?(:exclude_reblogs)
statuses.merge!(hashtag_scope) if params[:tagged].present?
statuses.paginate_by_id(limit_param(DEFAULT_STATUSES_LIMIT), params_slice(:max_id, :since_id, :min_id))
cache_collection_paginated_by_id(
statuses,
Status,
limit_param(DEFAULT_STATUSES_LIMIT),
params_slice(:max_id, :since_id, :min_id)
)
end
def permitted_account_statuses

+ 3
- 5
app/controllers/api/v1/notifications_controller.rb View File

@ -31,11 +31,9 @@ class Api::V1::NotificationsController < Api::BaseController
private
def load_notifications
cache_collection paginated_notifications, Notification
end
def paginated_notifications
browserable_account_notifications.paginate_by_id(
cache_collection_paginated_by_id(
browserable_account_notifications,
Notification,
limit_param(DEFAULT_NOTIFICATIONS_LIMIT),
params_slice(:max_id, :since_id, :min_id)
)

+ 9
- 7
app/controllers/api/v1/timelines/public_controller.rb View File

@ -16,18 +16,20 @@ class Api::V1::Timelines::PublicController < Api::BaseController
end
def load_statuses
cached_public_statuses
cached_public_statuses_page
end
def cached_public_statuses
cache_collection public_statuses, Status
end
def public_statuses
statuses = public_timeline_statuses.paginate_by_id(
def cached_public_statuses_page
cache_collection_paginated_by_id(
public_statuses,
Status,
limit_param(DEFAULT_STATUSES_LIMIT),
params_slice(:max_id, :since_id, :min_id)
)
end
def public_statuses
statuses = public_timeline_statuses
if truthy_param?(:only_media)
statuses.joins(:media_attachments).group(:id)

+ 6
- 11
app/controllers/api/v1/timelines/tag_controller.rb View File

@ -20,23 +20,18 @@ class Api::V1::Timelines::TagController < Api::BaseController
end
def cached_tagged_statuses
cache_collection tagged_statuses, Status
end
def tagged_statuses
if @tag.nil?
[]
else
statuses = tag_timeline_statuses.paginate_by_id(
statuses = tag_timeline_statuses
statuses = statuses.joins(:media_attachments) if truthy_param?(:only_media)
cache_collection_paginated_by_id(
statuses,
Status,
limit_param(DEFAULT_STATUSES_LIMIT),
params_slice(:max_id, :since_id, :min_id)
)
if truthy_param?(:only_media)
statuses.joins(:media_attachments)
else
statuses
end
end
end

+ 4
- 0
app/controllers/concerns/cache_concern.rb View File

@ -47,4 +47,8 @@ module CacheConcern
raw.map { |item| cached_keys_with_value[item.id] || uncached[item.id] }.compact
end
def cache_collection_paginated_by_id(raw, klass, limit, options)
cache_collection raw.cache_ids.paginate_by_id(limit, options), klass
end
end

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