class CreateWikiPages < ActiveRecord::Migration[4.2] def self.up create_table :wiki_pages do |t| t.column :wiki_id, :integer, :null => false t.column :title, :string, :limit => 255, :null => false t.column :created_on, :datetime, :null => false end add_index :wiki_pages, [:wiki_id, :title], :name => :wiki_pages_wiki_id_title end def self.down drop_table :wiki_pages end end