CI forum search results code

[eluser]Wuushu[/eluser]
I'm guessing as soon as a search is made for "user authentication" the following happens:

1) Check against database if a search_history exists for "user authentication" and is not older than X.
2) If it does exist, get the unique key, redirect to results page with unique id in url, there you get result for the unique id from database, unsearialize, display in results view.
3) If it does NOT exist or has timed out, perform search query against database
4) Retrieve database results, serialize them, insert unique-id (random), serialized data, timestamp..
5) redirect to results view with unique id in url and move back to 2)


That's just a wild guess