namespace param validation doesn't propagate to nested Grape modules

[danielveleba]

Not sure if it is a bug or a feature, but I'd welcome if I could declare parameter validation even for nested API modules like below.

For the former code sample the UserId validator doesn't get called, while for the latter it does.
Behaves the same for builtin validators.

params do
  requires :user_id, type: String, user_id: true
end
resource 'user/:user_id' do 
  mount UserProfile
end

params do
  requires :user_id, type: String, user_id: true
end
resource 'user/:user_id' do 
  get '/' do 
  ...
  end
end

Thanks

[dblock]

I think it's an interesting corner case, mount-kind of inheritance is a bit hard to track, but if you can fix it without breaking anything else I would take it.

[rnubel]

I believe this fails for basically the same reason as #1050. I'd be curious if my patch from that issue also fixes this issue.

[namusyaka]

Closed via #1422
Thanks for reporting the issue, and thanks @rnubel and @plukevdh for your efforts.
Please reopen this issue if you still have a problem.