class DiaryComments < ActiveRecord::Migration[4.2] def self.up create_table "diary_comments", :id => false do |t| t.column "id", :bigserial, :primary_key => true, :null => false t.column "diary_entry_id", :bigint, :null => false t.column "user_id", :bigint, :null => false t.column "body", :text, :null => false t.column "created_at", :datetime, :null => false t.column "updated_at", :datetime, :null => false end add_index "diary_comments", %w[diary_entry_id id], :name => "diary_comments_entry_id_idx", :unique => true end def self.down drop_table "diary_comments" end end