only ActivePackage vs. (Package + ActivePackage)

[Kejsty]

I think that there should be ActivePackage for every package available to user with its user_id. Otherwise writing down all packages available to user would take a lot of comparison. ActivePackages only holds its original package_id, so it doesn't take so much memory, and iterate over it for some user_id will be much simplier.

[snurkabill]

Possible usecase:

load all active packages and store their id into HashMap. Then you can iterate over all packages and in constant time decide if such active package is needed or not.