I'm hoping there is documentation or a tutorial somewhere and I just can't find it... but I'm wondering if there is a good way to collect specially formatted data.
For example I want to collect people twitter handle, and I'd like to either require they enter the @, ie. "@jb510" or not (custom field validation?).
I've got a similar scenario with facebook/foursquare/Flickr URLs, where I'd like to automatically pull their ID out of the full URL. For example given: https://foursquare.com/v/foursquare-hq/4ab7e57cf964a5205f7b20e3 . I'd like to just store Venue ID and then later generate several links that use it and FourSquare's API. Maybe it's beter just to require the user to pull their ID out of the URL in most cases, but still wondering if GF has any tools to accommodate such a thing.