How to compare with a rules condition vote:uid to 10 instances? Principle: limit user's votes to 10.

Modules used: Voting API, Rate (or maybe Plus1)

Context: Users can vote on projects with 10 possible votes to distribut on all projects, by 1 to 10 votes on each project of their choices, up to a total of 10 votes. 

When a user has distributed 10 votes, he loses the permission to vote. 
To swith the permission with rules, I create a role "Voter". All users have the role by default. 

At that point, I have this:
- Event : content is viewed (of type project)
- Condition : site:current-user:uid equals vote:uid
//And now I'd like to say something like "AND vote:uid appears 10 times in the 'votingapi_votes'.'uid' SO
- Action : Add/remove user role to simple AU (without vote permission)

So how to compare with a rule condition vote:uid to 10 instances?
In the scenario you describe, a simple solution could be to create a profile field to store the number of votes per user. This field will be:


set to 0 as a default value
incremented when the user votes (you can use Rules for that, there is an action called "Set a data value")
compared with your defined maximum (ex: 10) in Rules, so that when the user reaches 10, something is triggered (ex: Remove user role: "Voting User")


You can then set the voting API permissions to this role ("Voting User"), and use it as a display condition to hide the voting buttons (Plus 1 or Rate).

Hope it helps!
Cheers