- columns = local_assigns[:columns] || [:author]

table.auto-layout.letters.has-togglable-rows
  thead
    tr
      th.col-width-small
      th.col-width-tiny State
      th.col-width-date Date
      - if columns.include?(:author)
        th.col-width-medium Author
      - if columns.include?(:patient)
        th.col-width-medium Patient
      th.col-width-medium Recipient
      th.col-width-medium Description

  tbody
    = render partial: "renalware/letters/letters/letter",
             collection: letters,
             cached: true,
             locals: { columns: columns }