```ruby
module Fe
  module AnswerConcern
    extend ActiveSupport::Concern
    include ActionView::Helpers::TextHelper

    begin
      included do

        belongs_to :answer_sheet
        belongs_to :question, :class_name => "Element", :foreign_key => "question_id"

        before_save :set_value_from_filename

        has_attached_file :attachment
        do_not_validate_attachment_file_type :attachment # these attachments can be any content type
      end
    rescue ActiveSupport::Concern::MultipleIncludedBlocks
    end

    def set(value)
      self.value = value
    end

    def to_s
      self.value
    end

    def set_value_from_filename
      self.value = self.attachment_file_name if self[:attachment_file_name].present?
    end

    module ClassMethods
      def table_name
        "#{Fe.table_name_prefix}answers"
      end
    end
  end
end
```

Revert "add attachment back to answer, panorama uses it"
user
```ruby
module Fe
  module AnswerConcern
    extend ActiveSupport::Concern
    include ActionView::Helpers::TextHelper

    begin
      included do

        belongs_to :answer_sheet
        belongs_to :question, :class_name => "Element", :foreign_key => "question_id"

        before_save :set_value_from_filename
      end
    rescue ActiveSupport::Concern::MultipleIncludedBlocks
    end

    def set(value)
      self.value = value
    end

    def to_s
      self.value
    end

    def set_value_from_filename
      self.value = self.attachment_file_name if self[:attachment_file_name].present?
    end

    module ClassMethods
      def table_name
        "#{Fe.table_name_prefix}answers"
      end
    end
  end
end
```
assistant