I have a table on a page, and i want a link to download the table data as a csv. One way to do this would be to have my model class build a file, and pass the filename back to the controller, which uses send_file to send it to the user. But, this seems a bit heavy handed - it's a small amount of data, which is subject to change, and i don't want a load of files hanging around if i can help it.
Have a look at send_data.
Fred