Access control based on count of relation

[PodkopovP]

I.e. say I have a chat, which has a many relation with chat members. I want to deny read access to the chat, if the count of related members is 0.

[ymc9]

Please watch v3. There's a good solution for it.

[PodkopovP]

Looks cool! I'll likely start using v3 as soon as access control is implemented, exciting stuff!