[eluser]xwero[/eluser]
The forums consist out of post ids and it's the last added post for a thread that is being displayed. So you have to go to post level. To prevent too much data the read post ids table should have a thread id too so when a member clicks on the post id link the previous post id from the same thread will be removed.
This means you will only have one item for each thread the member clicked on later than the global read date.
A thread link is something extra because a member doesn't want to see the topic but the last post in the thread. I almost never click on the thread link, i click on the link with the date on the CI forum, i think many people do the same.
If you provide an rss feed there will not be a thread link i think.
If you have a thread link you need to check the click date with the date of the last post and then add that to the read post ids table.
