discourse/db/migrate/20140707071913_add_self_edits_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

15 lines
379 B
Ruby

# frozen_string_literal: true
class AddSelfEditsToPosts < ActiveRecord::Migration[4.2]
def up
add_column :posts, :self_edits, :integer, null: false, default: 0
execute "
UPDATE posts p SET self_edits = (SELECT COUNT(*) FROM post_revisions pr WHERE pr.post_id = p.id AND pr.user_id=p.user_id)
"
end
def down
remove_column :posts, :self_edits
end
end