1   Background

The portlets located in a folder are by default visible in all sub-folders. It means that the amount of portlets tends to increase as one goes deeper into the site structure.

It can sometimes be useful to control the visibility of the portlets located in the parent folders.

The solution is to allow users to override portlets.

2   Implementation

The implementation is based on a dialogue between the manager(s) of a given folder and the manager(s) of sub-folders:

• Portlets can be overridden be default unless the disable_override flag is set.
• If a portlet located in a given folder has the slot_override flag set then only the portlets of the same slot located in the folder and in the folders below will be visible. All portlets above except the ones with the disable_override flag on will be invisible.
• Only visible portlets may override other portlets.

3   Example

Portlet A1 in /workspaces               Portlet A2 in /workspaces
in SLOT1                                in SLOT1
-------------------------               -------------------------
disable_override: YES                   disable_override: NO


Portlet B in /workspaces/members/user
in SLOT1
-------------------------------------
slot_override: YES

Notes:

• Visible in /workspaces (SLOT1): A1, A2
• Visible in /workspaces/members/user (SLOT1): A1, B (A2 is overridden, A1 cannot be overridden)