discourse/app/jobs/scheduled/clean_up_uploads.rb

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module Jobs
class CleanUpUploads < Jobs::Scheduled
every 1.hour
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def execute(args)
return unless SiteSetting.clean_up_uploads?
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ignore_urls = []
ignore_urls << UserProfile.uniq.where("profile_background IS NOT NULL AND profile_background != ''").pluck(:profile_background)
ignore_urls << UserProfile.uniq.where("expansion_background IS NOT NULL AND expansion_background != ''").pluck(:expansion_background)
ignore_urls << Category.uniq.where("logo_url IS NOT NULL AND logo_url != ''").pluck(:logo_url)
ignore_urls << Category.uniq.where("background_url IS NOT NULL AND background_url != ''").pluck(:background_url)
ignore_urls.flatten!
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grace_period = [SiteSetting.clean_orphan_uploads_grace_period_hours, 1].max
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Upload.where("created_at < ? AND
(retain_hours IS NULL OR created_at < current_timestamp - interval '1 hour' * retain_hours )", grace_period.hour.ago)
.where("id NOT IN (SELECT upload_id from post_uploads)")
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.where("id NOT IN (SELECT custom_upload_id from user_avatars)")
.where("id NOT IN (SELECT gravatar_upload_id from user_avatars)")
.where("url NOT IN (?)", ignore_urls)
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.find_each do |upload|
upload.destroy
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end
end
end
end