[feature request] Add decorators to views akin to Flask Method views

[sergioisidoro]

Flask allows method view decoration through a decorators attribute:

class UserAPI(MethodView):
    decorators = [user_required]

https://flask.palletsprojects.com/en/2.0.x/views/#decorating-views

Implementing this to flask admin would allow a more flexible decoration of the admin views :)

Could something like this work in Admin class, with BaseView having a default class attribute for decorators?

class Admin:
        ....
    def init_app
        ...
        for view in self._views:
            blueprint = view.create_blueprint(self)
            for decorator in view.decorators:
                blueprint.before_request(decorator(blueprint))
            app.register_blueprint(blueprint)

[caffeinatedMike]

Decorators are already baked into ModelViews (note the @expose uses throughout the documentation). It doesn't make sense to expose decorators to all ModelView functions because most of the functions have nothing to do with routing. Since you have to explicitly use @expose on routes within a ModelView blueprint in order to make them accessible you might as well add the extra decorator to each function.

@mrjoes vetoed