discourse/app/jobs/scheduled/clean_up_crawler_stats.rb
Sam Saffron 30990006a9 DEV: enable frozen string literal on all files
This reduces chances of errors where consumers of strings mutate inputs
and reduces memory usage of the app.

Test suite passes now, but there may be some stuff left, so we will run
a few sites on a branch prior to merging
2019-05-13 09:31:32 +08:00

29 lines
748 B
Ruby

# frozen_string_literal: true
module Jobs
class CleanUpCrawlerStats < Jobs::Scheduled
every 1.day
def execute(args)
WebCrawlerRequest.where('date < ?', WebCrawlerRequest.max_record_age.ago).delete_all
# keep count of only the top user agents
DB.exec <<~SQL
WITH ranked_requests AS (
SELECT row_number() OVER (ORDER BY count DESC) as row_number, id
FROM web_crawler_requests
WHERE date = '#{1.day.ago.strftime("%Y-%m-%d")}'
)
DELETE FROM web_crawler_requests
WHERE id IN (
SELECT ranked_requests.id
FROM ranked_requests
WHERE row_number > #{WebCrawlerRequest.max_records_per_day}
)
SQL
end
end
end