= form_for(category) do |f|
  - if category.errors.any?
    #error_explanation
      %h2
        = pluralize(category.errors.count, "error")
        prohibited this category from being saved:
      %ul
        - category.errors.full_messages.each do |message|
          %li= message
  .field
    = f.label :name
    = f.text_field :name
  .field
    = f.label :blurb
    = f.text_field :blurb
  .field
    = f.label :description
    = f.text_area :description
  .field
    = f.label :external_id
    = f.text_field :external_id
  .field
    = f.label :parent_category_id
    = f.number_field :parent_category_id
  .actions
    = f.submit