discourse/db/migrate/20131209091702_create_post_...

28 lines
713 B
Ruby

# frozen_string_literal: true
class CreatePostRevisions < ActiveRecord::Migration[4.2]
def up
create_table :post_revisions do |t|
t.belongs_to :user
t.belongs_to :post
t.text :modifications
t.integer :number
t.timestamps null: false
end
execute "INSERT INTO post_revisions (user_id, post_id, modifications, number, created_at, updated_at)
SELECT user_id, versioned_id, modifications, number, created_at, updated_at
FROM versions
WHERE versioned_type = 'Post'"
change_table :post_revisions do |t|
t.index :post_id
t.index [:post_id, :number]
end
end
def down
drop_table :post_revisions
end
end