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sharmas GroupMember and User
I want to enable/disable a custom buttton on a VF page based on the Public Group (Group B, for example).
To achieve this, I am querying GroupMember object. I check whether the UserOrGroupId field value equals current user's Id. but if the user is in, for example, Group A, and Group A is a sub-group of Group B, then my query fails since GroupMember object do not contain record with User Id in UserOrGroupId field, and it saves the Id of Group A.
Also, if the Reason for Membership for User is equal to Manager of Group Member, query doesn't return any value.
Please suggest any solution/design to overcome this problem.
You will have to recursively look on the groups and group members to determine this result. Essentially the logic would be:
1. Get the groups that the current user belongs to
2. Get the groups that groups in Step 1 belong to
3. Repeat Step#2 until you've got to the topmost group
You might hit Governor limits doing 2&3. you might have to design this correctly to work around those. Probably fetch all groups and group members upfront store them in a map so that you can recurse through the map instead of SOQL queries.