Editing asset

<%= form_for(@asset, html: { multipart: true }) do |f| %> <%= form_error_messages(f) %> <% if @asset.upload.present? %>

Current file: <%= @asset.upload.url %> (<%= number_to_human_size(@asset.upload.size) %>)

<% end %>

Replace file:
<%= f.file_field :upload %>

<%= f.submit 'Update' %>

<% end %> <%= link_to 'Show', @asset %> | <%= link_to 'Back', assets_path %>