discourse/db/migrate/20141020153415_add_public_version_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

18 lines
533 B
Ruby

# frozen_string_literal: true
class AddPublicVersionToPosts < ActiveRecord::Migration[4.2]
def up
add_column :posts, :public_version, :integer, null: false, default: 1
execute <<-SQL
UPDATE posts
SET public_version = 1 + (SELECT COUNT(*) FROM post_revisions pr WHERE post_id = posts.id AND pr.hidden = 'f')
WHERE public_version <> 1 + (SELECT COUNT(*) FROM post_revisions pr WHERE post_id = posts.id AND pr.hidden = 'f')
SQL
end
def down
remove_column :posts, :public_version
end
end