diff options
Diffstat (limited to 'lib/gitlab/search/recent_issues.rb')
-rw-r--r-- | lib/gitlab/search/recent_issues.rb | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/lib/gitlab/search/recent_issues.rb b/lib/gitlab/search/recent_issues.rb new file mode 100644 index 00000000000..755ca35bd66 --- /dev/null +++ b/lib/gitlab/search/recent_issues.rb @@ -0,0 +1,60 @@ +# frozen_string_literal: true + +module Gitlab + module Search + class RecentIssues + ITEMS_LIMIT = 100 + EXPIRES_AFTER = 7.days + + def initialize(user:, items_limit: ITEMS_LIMIT, expires_after: EXPIRES_AFTER) + @user = user + @items_limit = items_limit + @expires_after = expires_after + end + + def log_view(issue) + return unless recent_items_enabled? + + with_redis do |redis| + redis.zadd(key, Time.now.to_f, issue.id) + redis.expire(key, @expires_after) + + # There is a race condition here where we could end up removing an + # item from 2 places concurrently but this is fine since worst case + # scenario we remove an extra item from the end of the list. + if redis.zcard(key) > @items_limit + redis.zremrangebyrank(key, 0, 0) # Remove least recent + end + end + end + + def search(term) + return Issue.none unless recent_items_enabled? + + ids = with_redis do |redis| + redis.zrevrange(key, 0, @items_limit - 1) + end.map(&:to_i) + + IssuesFinder.new(@user, search: term, in: 'title').execute.reorder(nil).id_in_ordered(ids) # rubocop: disable CodeReuse/ActiveRecord + end + + private + + def with_redis(&blk) + Gitlab::Redis::SharedState.with(&blk) # rubocop: disable CodeReuse/ActiveRecord + end + + def key + "recent_items:#{type.name.downcase}:#{@user.id}" + end + + def type + Issue + end + + def recent_items_enabled? + Feature.enabled?(:recent_items_search, @user) + end + end + end +end |