Many to many relationship between model & enum

[tsukanov-alexey]

I have one model Document and enum Scope. Each document can have many scopes. I think Scope should be an enum because permissions of users strongly depends on scopes and will be hardcoded.

At this point I use only one scope per document. which is not fit in our domain.

So, I just maked pivot table document_scopes and stuck...

In my mind, it would be ideal to have something like this:

$document->scopes()->attach(Scope::Shop)
$document->scopes // Collection<Scope>

What is the best way to do this?