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PERF: Update TopicView#participant_count to use Topic#posts_count.

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Use the counter cache instead of hitting the DB and plucking
every single id.
This commit is contained in:
Guo Xiang Tan
2018-06-27 17:18:47 +08:00
parent cfa7898c2d
commit eb427f7cf4
1 changed files with 1 additions and 1 deletions
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lib/topic_view.rb
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@ -310,7 +310,7 @@ class TopicView
@participant_count ||= @participant_count ||=
begin begin
if participants.size == MAX_PARTICIPANTS if participants.size == MAX_PARTICIPANTS
if unfiltered_post_ids.length > MAX_POSTS_COUNT_PARTICIPANTS if @topic.posts_count > MAX_POSTS_COUNT_PARTICIPANTS
@topic.participant_count @topic.participant_count
else else
sql = <<~SQL sql = <<~SQL