gistfile1.rb

Sequel.migration do
  change do
    create_table :polls do
      primary_key :id
      string :title
      string :author
      boolean :active
    end
  end
end

Sequel.migration do
  change do
    create_table :poll_options do
      primary_key :id
      foreign_key :poll_id
      string :title
    end
  end
end

Sequel.migration do
  change do
    create_table :votes do
      primary_key :id
      foreign_key :poll_id
      foreign_key :poll_option_id
      integer :winning_vote_id
      string :author
    end
  end
end