app/models/proof_attempt.rb

	proof_attempt.rb revision 2fd88efc10e9ebf955b6fa407d0216faf4a51dfb
class ProofAttempt < ActiveRecord::Base
  include Numbering

  numbering_parent_column 'sentence_id'

  belongs_to :theorem, foreign_key: 'sentence_id'
  belongs_to :proof_status
  has_many :generated_axioms, dependent: :destroy
  has_and_belongs_to_many :used_axioms,
                          class_name: 'Axiom',
                          association_foreign_key: 'sentence_id',
                          join_table: 'used_axioms_proof_attempts'
  has_and_belongs_to_many :used_theorems,
                          class_name: 'Theorem',
                          association_foreign_key: 'sentence_id',
                          join_table: 'used_axioms_proof_attempts'

  attr_accessible :prover, :prover_output, :tactic_script, :time_taken, :number

  validates :theorem, presence: true

  after_save :update_theorem_status

  scope :latest, order('number DESC')

  def to_param
    number
  end

  def used_sentences
    @used_sentences ||= used_axioms + used_theorems
  end

  def update_theorem_status
    theorem.update_proof_status(proof_status)
  end
end