upload tags report: fix N+1 queries issues.

2017-03-30 13:09:56 -05:00
parent 765fbac11d
commit 964197d403
3 changed files with 9 additions and 12 deletions
--- a/app/logical/reports/upload_tags.rb
+++ b/app/logical/reports/upload_tags.rb
@@ -29,9 +29,9 @@ module Reports

    def uploader_tags_array
      @uploader_tags ||= begin
-        added_tags = []
-        PostArchive.where(post_id: id, updater_id: uploader_id).each do |version|
-          added_tags += version.changes[:added_tags]
+        uploader_versions = versions.select { |p| p.updater_id == uploader_id }
+        added_tags = uploader_versions.flat_map do |version|
+          version.changes[:added_tags]
        end
        added_tags.uniq.sort
      end