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PERF: Prefer exists? instead of loading AR object.

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Guo Xiang Tan 2018-06-01 09:44:14 +08:00
parent 50be06af47
commit 9ef61e0af5
1 changed files with 1 additions and 1 deletions
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app/models/topic.rb
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@ -655,7 +655,7 @@ SQL
end end
def changed_to_category(new_category) def changed_to_category(new_category)
return true if new_category.blank? || Category.find_by(topic_id: id).present? return true if new_category.blank? || Category.exists?(topic_id: id)
return false if new_category.id == SiteSetting.uncategorized_category_id && !SiteSetting.allow_uncategorized_topics return false if new_category.id == SiteSetting.uncategorized_category_id && !SiteSetting.allow_uncategorized_topics
Topic.transaction do Topic.transaction do