= simple_form_for(@master_section) do |f|
  = f.error_notification

  .form-inputs
    = f.input :name
    - if @project
      = f.hidden_field :project_id, value: @project.id
    - else
      = f.input :project_id, collection: Project.order(:created_at).reverse_order

  .form-actions
    = f.button :submit, class: "btn btn-primary"