discourse/db/migrate/20120514144549_add_reply_count_to_posts.rb
Sam Saffron 30990006a9 DEV: enable frozen string literal on all files
This reduces chances of errors where consumers of strings mutate inputs
and reduces memory usage of the app.

Test suite passes now, but there may be some stuff left, so we will run
a few sites on a branch prior to merging
2019-05-13 09:31:32 +08:00

16 lines
381 B
Ruby

# frozen_string_literal: true
class AddReplyCountToPosts < ActiveRecord::Migration[4.2]
def up
add_column :posts, :reply_count, :integer, null: false, default: 0
execute "UPDATE posts
SET reply_count = (SELECT count(*) FROM posts AS p2 WHERE p2.reply_to_post_number = posts.post_number)"
end
def down
remove_column :posts, :reply_count
end
end