Add request context to validation about goyave

[System-Glitch]

I like the idea but this is a breaking change. The function signature is also already pretty heavy with lots of parameters. If I were to change it, I would probably create a validation.Context struct containing everything the validators could need.

About your example, this is a wrong usage of validator. You are checking for permissions, and that should take place in middleware. That is because a validator returning false will result in a http.StatusUnprocessableEntity, while you should use http.StatusUnauthorized instead.

I don't think that change would require a reorganization of the structure because we could just pass the request.Extra map to the validator, without the need for an import of the main package. I don't think validators need (nor should) get any other information from the request to avoid them going beyond their primary goal.

[Clement3]

Sorry for the late response.
Indeed, maybe it wasn’t the best example to give, but you understood what I needed.
Your solution allows to have custom fields without having to pass the Request entirely which solve the problem.