<%= form_tag('./export_import') do %>

CSV content goes here:
<%= @csv_content %>

Task: <%= select_tag "task", options_for_select(@tasks, @task) %>

<%= submit_tag "Run task" %>

<% if !@error_message.nil? && @error_message != "" %>

Error message: <%= @error_message %>

<% end %>

Output area:

<%= unless @output.nil? @output.html_safe end %>

<% end %>