Pass a variable between a controller

[eluser]Pascal Kriete[/eluser]
Wacky, the function is in the same controller - no need for [strike]ugly[/strike] alternative solutions.

The easiest way to do this, is to just call that function after you upload and a) pass the data as a parameter, or b) put it in a class variable (as you're doing now).

Code:

$this->parse_csv($data);

If you're going to display a link that the user has to click - that's two requests, you need to either store the data in a file, db, or the session.
If you're using CI sessions, putting it into the session cookie would be mighty redundant, since the user just uploaded the file to the server. FWIW, I would ask if they want to parse it in the upload form, instead of showing a link as an afterthought.