Skip to content

Commit

Permalink
Merge remote-tracking branch 'upstream/pull/5667'
Browse files Browse the repository at this point in the history
  • Loading branch information
tomhughes committed Mar 2, 2025
2 parents 7c3c961 + 5c9355f commit b8b9c3d
Show file tree
Hide file tree
Showing 2 changed files with 31 additions and 0 deletions.
30 changes: 30 additions & 0 deletions db/migrate/20250212160355_backfill_note_descriptions.rb
Original file line number Diff line number Diff line change
@@ -0,0 +1,30 @@
class BackfillNoteDescriptions < ActiveRecord::Migration[7.2]
class Note < ApplicationRecord; end
class NoteComment < ApplicationRecord; end

disable_ddl_transaction!

def up
Note.in_batches(:of => 1000) do |notes|
note_ids = notes.pluck(:id)

sql_query = <<-SQL.squish
WITH first_comment AS(
SELECT DISTINCT ON (note_id) *
FROM note_comments
WHERE note_id BETWEEN #{note_ids.min} AND #{note_ids.max}
ORDER BY note_id, id
)
UPDATE notes
SET description = first_comment.body,
user_id = first_comment.author_id,
user_ip = first_comment.author_ip
FROM first_comment
WHERE first_comment.note_id = notes.id
AND first_comment.event = 'opened';
SQL

ActiveRecord::Base.connection.execute(sql_query)
end
end
end
1 change: 1 addition & 0 deletions db/structure.sql
Original file line number Diff line number Diff line change
Expand Up @@ -3429,6 +3429,7 @@ INSERT INTO "schema_migrations" (version) VALUES
('23'),
('22'),
('21'),
('20250212160355'),
('20250206202905'),
('20250121191749'),
('20250105154621'),
Expand Down

0 comments on commit b8b9c3d

Please sign in to comment.