Export CSV

<%= form_tag export_path(:format => :csv),:method => :post do%>

Select Client: <%= select_tag "client", options_from_collection_for_select(@clients, "id", "name"),:class => 'form-control'%>

Select Batch:
<%= button_tag "Export CSV",:class =>'btn btn-primary btn-sm',:id =>"btnexport" %>

<% end %>