What component of the Personal Account for Joomla 2.5 has such functions?

Question

Joomla

We need a Personal Account component for Joomla 2.5 in which, in addition to the standard functions, a registered user could perform Homework assignments with the possibility of their evaluation by a teacher; keep a personal diary, etc. In addition, so that it would be possible to implement an item there that would automatically mark those trainings that were paid for by this user (or only those that are available to him after payment would be displayed by the filter) ...
Who can suggest a ready-made solution? Maybe there is some component in which such features could be implemented by setting the necessary items?

Answer 1

Sobalt and Emerald.
Here kurteev made his product on them.
business.alex-kurteev.ru

Answer 2

Here is a solution for you.