db/migrate/20150313065037_use_prover_reference_in_proof_attempts.rb

	20150313065037_use_prover_reference_in_proof_attempts.rb revision 54a1f4b81d3db8dae3af04f4200ed7e14bf2543b
class UseProverReferenceInProofAttempts < ActiveRecord::Migration
  def up
    remove_columns :proof_attempts, :prover
    add_column :proof_attempts, :prover_id, :integer
  end

  def down
    add_column :proof_attempts, :prover, :string
    remove_column :proof_attempts, :prover_id
  end
end