Marshalling

student_database.rb

  def self.save_record(student)
    record = Marshal.dump(student)
    db_connection.execute('INSERT INTO students (student) VALUES (?);', [record])
  end

  def self.update_record(student)
    id = student.id
    row = Marshal.dump(student)
    db_connection.execute('UPDATE students SET student = ? WHERE id = ?', [row, id])
  end