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PERF: much faster Badge.ensure_consistency

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This commit is contained in:
Régis Hanol 2017-04-24 22:36:07 +02:00
parent e6f22725c8
commit 3d406b047c
1 changed files with 16 additions and 4 deletions

20
app/models/badge.rb

@ -132,12 +132,24 @@ class Badge < ActiveRecord::Base
exec_sql <<-SQL.squish exec_sql <<-SQL.squish
DELETE FROM user_badges DELETE FROM user_badges
USING user_badges ub USING user_badges ub
LEFT JOIN users u ON u.id = ub.user_id LEFT JOIN users u ON u.id = ub.user_id
WHERE u.id IS NULL WHERE u.id IS NULL
AND user_badges.id = ub.id AND user_badges.id = ub.id
SQL SQL
Badge.find_each(&:reset_grant_count!) exec_sql <<-SQL.squish
WITH X AS (
SELECT badge_id
, COUNT(user_id) users
FROM user_badges
GROUP BY badge_id
)
UPDATE badges
SET grant_count = X.users
FROM X
WHERE id = X.badge_id
AND grant_count <> X.users
SQL
end end
def awarded_for_trust_level? def awarded_for_trust_level?