TM1 Forum

Hi,

I want to rename one security group. For example, change group AA to AB And I got to know that it is not able to rename one security group, instead, must delete this group AA, then add a new group AB. However, all client/group assignment will be lost for the old group AA. Is it one method to write a TI process to add a new group AB firstly, assign the same client/group to AB as AA, then delete group AA?

Best regards,

Learn_TM1

Yes, that's a good way to proceed, but only a part of the solution.
Note that security that is set manually (through the interface or straight into the }... security cubes), will likely be lost when deleting the (original) group.
So in between assigning users to the new group, and deleting the original group, you will need to get the security rights of the new group equal to those of the original group.

- For TM1 objects where security is done with rules and the rules automatically carry over to the new group: no problem
- For TM1 objects where no security was applied: no problem either
- In all other cases: you'll likely have some work to do

Consider if using an alias on the }Groups dimension could be a quick solution to your problem of renaming a security group.

You could try using the SwapAliasWithPrincipalName method. I have never tried it on a control dimension, but there is a good chance it will work.

• Create an alias (e.g. called NewName) on the }Groups dimension.
  Populate the alias with the new name for the group whose name you want to change.
  Execute SwapAliasWithPrincipalName( '}Groups', 'NewName', 0 ) in a TI.
  Remove the alias.

Needless to say, try it in a dev environment first as things could go wrong!

qml wrote:You could try using the SwapAliasWithPrincipalName method. I have never tried it on a control dimension, but there is a good chance it will work.

• Create an alias (e.g. called NewName) on the }Groups dimension.
  Populate the alias with the new name for the group whose name you want to change.
  Execute SwapAliasWithPrincipalName( '}Groups', 'NewName', 0 ) in a TI.
  Remove the alias.

Needless to say, try it in a dev environment first as things could go wrong!

I will do the tests for a customer of mine, somewhere in February-March, because they move from Cognos Express 10.2.1 to Cognos Express 10.2.2.
After the work is done I will report back the findings but I expect SwapAliasWithPrincipalName to do a good job when migrating from CAM security to native TM1 security.

I have tried the SwapAliasWithPrincipalName on the }Groups dimension since my previous post and it worked perfectly. The version I tried it on was 10.2.2 FP4.

True. I did the same test on the same version, same finding (of course).

Please bear in mind that SwapAliasWithPrincipalName is an unsupported function and as such, all data should be backed up before using it.

What you really should do, is export your data create a new dimension with the correct element names then rebuild your cube an reimport the data.