Add `RankedTrend` concern for trends classes (#29388)
parent
98e3dc2578
commit
8429d07454
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@ -0,0 +1,29 @@
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# frozen_string_literal: true
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module RankedTrend
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extend ActiveSupport::Concern
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included do
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scope :by_rank, -> { order(rank: :desc) }
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scope :ranked_below, ->(value) { where(rank: ..value) }
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end
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class_methods do
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def recalculate_ordered_rank
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connection
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.exec_update(<<~SQL.squish)
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UPDATE #{table_name}
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SET rank = inner_ordered.calculated_rank
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FROM (
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SELECT id, row_number() OVER w AS calculated_rank
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FROM #{table_name}
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WINDOW w AS (
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PARTITION BY language
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ORDER BY score DESC
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)
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) inner_ordered
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WHERE #{table_name}.id = inner_ordered.id
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SQL
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end
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end
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end
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@ -12,6 +12,8 @@
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# language :string
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#
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class PreviewCardTrend < ApplicationRecord
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include RankedTrend
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belongs_to :preview_card
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scope :allowed, -> { where(allowed: true) }
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end
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@ -14,6 +14,8 @@
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#
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class StatusTrend < ApplicationRecord
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include RankedTrend
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belongs_to :status
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belongs_to :account
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@ -81,12 +81,12 @@ class Trends::Links < Trends::Base
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# Now that all trends have up-to-date scores, and all the ones below the threshold have
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# been removed, we can recalculate their positions
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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')
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PreviewCardTrend.recalculate_ordered_rank
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end
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def request_review
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PreviewCardTrend.pluck('distinct language').flat_map do |language|
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score_at_threshold = PreviewCardTrend.where(language: language, allowed: true).order(rank: :desc).where('rank <= ?', options[:review_threshold]).first&.score || 0
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score_at_threshold = PreviewCardTrend.where(language: language, allowed: true).by_rank.ranked_below(options[:review_threshold]).first&.score || 0
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preview_card_trends = PreviewCardTrend.where(language: language, allowed: false).joins(:preview_card)
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preview_card_trends.filter_map do |trend|
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@ -74,12 +74,12 @@ class Trends::Statuses < Trends::Base
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# Now that all trends have up-to-date scores, and all the ones below the threshold have
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# been removed, we can recalculate their positions
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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')
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StatusTrend.recalculate_ordered_rank
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end
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def request_review
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StatusTrend.pluck('distinct language').flat_map do |language|
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score_at_threshold = StatusTrend.where(language: language, allowed: true).order(rank: :desc).where('rank <= ?', options[:review_threshold]).first&.score || 0
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score_at_threshold = StatusTrend.where(language: language, allowed: true).by_rank.ranked_below(options[:review_threshold]).first&.score || 0
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status_trends = StatusTrend.where(language: language, allowed: false).joins(:status).includes(status: :account)
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status_trends.filter_map do |trend|
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