Сложная валидация больших объектов

validation.rb

class PersonValidator
  def validate(record)
    record.validates_presence_of :reject_reason
  end
end

class Form10Validator
  def validate(record)
    case record.applicant_type
      when 'husband'
        validate_for_husband
        
      when 'wife'
        validate_for_wife
        
      else
        default_validation
    end    
  end
  
  def validate_for_husband
    record.husband.validates_with(PersonValidator)
  end
  
  def validate_for_wife
    record.wife.validates_with(PersonValidator)
  end
  
  def default_validation
    
  end
end

class Form9Validator
  def validate(record)
    record.husband.validates_with(PersonValidator)
    record.wife.validates_with(PersonValidator)
    
  end
end

s = ServiceStatementDivorce.last
s.validates_with(Form10Validator)
s.valid? #=> true


s = ServiceStatementDivorce.last
s.validates_with(Form9Validator)
s.valid? #=> false