Javier,
> when an issue is re-assigned to another user, eventum
> stores a log of the activities that the former user
> did?.
>
Yes, of course. The table is called eventum_issue_history. That's what
is used to build the history of changes popup window content.
> For instance if the first user added 2 hours to the
> time tracking and the second one another three, then
> when I generate a report of the time spent per issue,
> how can I show that in this issue worked two users if
> in the eventum_issue_user table only appears the last
> user assigned?
>
> The report I'm trying to do look like this:
>
> user issue hours spent
> ---- ----- -----------
> user1 issue1 4
> user2 issue1 3
>
> and what I need to know is where I can find a list of
> users assigned to an issue, not only the users
> assigned now, but also the users that was assigned
> previously and now not.
>
We don't keep which users were assigned to an issue previously, but you
could try to parse that from the history of changes description. Not
pretty, but possible.
--Joao