class MoveNotes < ActiveRecord::Migration def self.up # Remove the host requirement. We'll add the column back in below. remove_column :notes, :host_id change_table :notes do |t| t.integer :workspace_id, :null => false, :default => 1 t.integer :service_id t.integer :host_id end end def self.down remove_column :notes, :workspace_id remove_column :notes, :service_id change_table :notes do |t| t.integer :host_id, :null => false end end end