def change
            create_table :users do |t|
        t.column :first_name, :string
        t.column :last_name, :string
           end

               User.new(:first_name =>'John', :last_name =>'Dane').save
               User.new(:first_name =>'Peter', :last_name =>'Hall').save
       end

       def self.down
         drop_table :user
       end