discourse/db/migrate/20120702211427_create_replies.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

20 lines
664 B
Ruby

# frozen_string_literal: true
class CreateReplies < ActiveRecord::Migration[4.2]
def change
create_table :post_replies, id: false do |t|
t.references :post
t.integer :reply_id
t.timestamps null: false
end
add_index :post_replies, [:post_id, :reply_id], unique: true
execute "INSERT INTO post_replies (post_id, reply_id, created_at, updated_at)
SELECT p2.id, p.id, CURRENT_TIMESTAMP, CURRENT_TIMESTAMP
FROM posts AS p
INNER JOIN posts AS p2 on p2.post_number = p.reply_to_post_number AND p2.forum_thread_id = P.forum_thread_id
WHERE p.forum_thread_id IS NOT NULL"
end
end