Difference between user groupId and scopeGroupId

Question

Whats the difference between themeDisplay.getUser().getGroupId() and themeDisplay.getScopeGroupId()?

If I retrieve Layouts (pages) from it, would they have any different URL pattern like, /web-or-user/<user>/* or /web-or-user-or-group/<group>/*?

I mean am I right to say that every user has his own group or something?

As I understand it so far, it seems like User Foo has group UserFoo and group GroupFoo so you can retrieve pages personal to Foo or group of Foo ... Am I in the good way?

Answer 1

Every authenticated user can have their own private and public pages which would be the getUser().getGroupId().

Then there is also the Community that a user is currently viewing which is the Scope Group ID.

So yes you're right! :)

Answer 2

Using a group Id you can get the public or private pages of the user. while a scopeGroupId is related to the permission of your portlet(refer chapter security and permission in (http://www.liferay.com/documentation/liferay-portal/6.1/development/-/ai/security-and-permissio-4)