edit.html.erb

<%= render partial: "attachments/breadcrumbs"%>

<h1 class="page-header">Edit attachment</h1>

<%= render(partial: "shared/attachments_form", locals: {
  attachment: @attachment,
  url: document_attachment_path(
    params[:document_type_slug],
    params[:document_content_id],
    params[:attachment_content_id]
  ),
  method: 'put'
}) %>