Add `RankedTrend` concern for trends classes (#29388)

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Matt Jankowski 2024-02-26 08:45:39 -05:00 committed by GitHub
parent 98e3dc2578
commit 8429d07454
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5 changed files with 37 additions and 4 deletions

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@ -0,0 +1,29 @@
# frozen_string_literal: true
module RankedTrend
extend ActiveSupport::Concern
included do
scope :by_rank, -> { order(rank: :desc) }
scope :ranked_below, ->(value) { where(rank: ..value) }
end
class_methods do
def recalculate_ordered_rank
connection
.exec_update(<<~SQL.squish)
UPDATE #{table_name}
SET rank = inner_ordered.calculated_rank
FROM (
SELECT id, row_number() OVER w AS calculated_rank
FROM #{table_name}
WINDOW w AS (
PARTITION BY language
ORDER BY score DESC
)
) inner_ordered
WHERE #{table_name}.id = inner_ordered.id
SQL
end
end
end

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@ -12,6 +12,8 @@
# language :string
#
class PreviewCardTrend < ApplicationRecord
include RankedTrend
belongs_to :preview_card
scope :allowed, -> { where(allowed: true) }
end

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@ -14,6 +14,8 @@
#
class StatusTrend < ApplicationRecord
include RankedTrend
belongs_to :status
belongs_to :account

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@ -81,12 +81,12 @@ class Trends::Links < Trends::Base
# Now that all trends have up-to-date scores, and all the ones below the threshold have
# been removed, we can recalculate their positions
PreviewCardTrend.connection.exec_update('UPDATE preview_card_trends SET rank = t0.calculated_rank FROM (SELECT id, row_number() OVER w AS calculated_rank FROM preview_card_trends WINDOW w AS (PARTITION BY language ORDER BY score DESC)) t0 WHERE preview_card_trends.id = t0.id')
PreviewCardTrend.recalculate_ordered_rank
end
def request_review
PreviewCardTrend.pluck('distinct language').flat_map do |language|
score_at_threshold = PreviewCardTrend.where(language: language, allowed: true).order(rank: :desc).where('rank <= ?', options[:review_threshold]).first&.score || 0
score_at_threshold = PreviewCardTrend.where(language: language, allowed: true).by_rank.ranked_below(options[:review_threshold]).first&.score || 0
preview_card_trends = PreviewCardTrend.where(language: language, allowed: false).joins(:preview_card)
preview_card_trends.filter_map do |trend|

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@ -74,12 +74,12 @@ class Trends::Statuses < Trends::Base
# Now that all trends have up-to-date scores, and all the ones below the threshold have
# been removed, we can recalculate their positions
StatusTrend.connection.exec_update('UPDATE status_trends SET rank = t0.calculated_rank FROM (SELECT id, row_number() OVER w AS calculated_rank FROM status_trends WINDOW w AS (PARTITION BY language ORDER BY score DESC)) t0 WHERE status_trends.id = t0.id')
StatusTrend.recalculate_ordered_rank
end
def request_review
StatusTrend.pluck('distinct language').flat_map do |language|
score_at_threshold = StatusTrend.where(language: language, allowed: true).order(rank: :desc).where('rank <= ?', options[:review_threshold]).first&.score || 0
score_at_threshold = StatusTrend.where(language: language, allowed: true).by_rank.ranked_below(options[:review_threshold]).first&.score || 0
status_trends = StatusTrend.where(language: language, allowed: false).joins(:status).includes(status: :account)
status_trends.filter_map do |trend|