app/views/personas/index.html.erb
<div id="row" >
<%= datagrid_form_for @grid, :method => :get, :url => personas_path %>
<%= paginate(@grid.assets) %>
<%= datagrid_table @grid %>
<div class='total'>Total: <%= @grid.assets.total_count %></div>
<%= paginate(@grid.assets) %>
<%= link_to "Get CSV", url_for(format: 'csv', personas_grid: params[:personas_grid]) %>
<%= form_tag import_users_path, multipart: true do %>
<%= file_field_tag :file %>
<%= submit_tag "Import CSV" %>
<% end %>
</div>