- expanded = discussion_left.try(:expanded?) || discussion_right.try(:expanded?) %tr.notes_holder{ class: ('hide' unless expanded) } - if discussion_left %td.notes_line.old %td.notes_content.parallel.old .content{ class: ('hide' unless discussion_left.expanded?) } = render "discussions/notes", discussion: discussion_left, line_type: 'old' - else %td.notes_line.old= "" %td.notes_content.parallel.old .content - if discussion_right %td.notes_line.new %td.notes_content.parallel.new .content{ class: ('hide' unless discussion_right.expanded?) } = render "discussions/notes", discussion: discussion_right, line_type: 'new' - else %td.notes_line.new= "" %td.notes_content.parallel.new .content