class CreateBoards < ActiveRecord::Migration[4.2] def self.up create_table :boards do |t| t.column :project_id, :integer, :null => false t.column :name, :string, :default => "", :null => false t.column :description, :string t.column :position, :integer, :default => 1 t.column :topics_count, :integer, :default => 0, :null => false t.column :messages_count, :integer, :default => 0, :null => false t.column :last_message_id, :integer end add_index :boards, [:project_id], :name => :boards_project_id end def self.down drop_table :boards end end