= simple_form_for(@announcement) do |f|
  - if @announcement.errors.any?
    .form-row
      .col-sm-12
        #error_explanation.alert.alert-dismissable.alert-danger
          %button.close{type: "button", data: { dismiss: "alert"}, aria: {hidden: "true"}} ×
          %h3= "เกิดปัญหาในการบันทึกข้อมูลเนื่องจาก"
          %ul
            - @announcement.errors.full_messages.each do |message|
              %li= message
  .form-row
    .col-md-6.col-12
      -# = f.input :lock_version, as: :hidden
      = f.input :title
      = f.input :notes, label: 'Notes (shown internally, used to organize announcements)'
      = f.input :body
      = f.input :author
      = f.input :published
      = f.input :frontpage, label: 'Display in the front page only?'
      = f.input :on_nav_bar, label: 'Show on menu bar?', wrapper: :custom_boolean
      = f.input :contest_only, label: 'Display in contest only?'
      = f.submit "Create", class: 'btn btn-primary'
      -if content_for?(:form_buttons)
        = yield(:form_buttons)
        / = link_to 'Back', announcements_path, class: 'btn btn-default'