How to map Atomic Counters to user

General
1

I have a post table, and the table relation set with author and likes. I have successfully made a Atomic counter. I want to map that counter with current user because one user can like only one post one time. How can i do that.

2

HI!
you can add relation from current user to liked post to identify user’s “likes”.

3

how can i do that ? any exemple

4

You can use data service doc
https://backendless.com/documentation/data/ios/data_relations_save_update.htm

and blog examples
https://backendless.com/feature-1-saving-objects-with-relations/
https://backendless.com/users-and-relations-in-java-and-android/