Mounting the engine with a route constraint

[olimart]

Hey,

Albeit the mention of setting the base controller, I was trying to define a contraint while mounting the engine.
mount MissionControl::Jobs::Engine, at: "jobs", constraints: AdminConstraint.new

class AdminConstraint
  def matches?(request)
    return unless request.session[:user_id]
    User.find(request.session[:user_id])&.admin?
  end
end

which fails because <ActionDispatch::Request::Session:0x72ba0 not yet loaded>

I don't know if it's a limit of Rails engine (it used to work with Sidekiq dashboard though) or if there is some loading logic to change to make it work. Is that something that can be envisioned? Thanks

[gjtorikian]

Unsure if this'll be helpful in your situation, but for a constraint I write mine as:

  constraints ->(request) { StaffController.staff_request?(request) } do
    mount MissionControl::Jobs::Engine, at: "staff/jobs"
  end